Release Catima 2.15.1

Update Fastlane changelogs

.github/workflows/android.yml

@@ -2,9 +2,13 @@ name: Android CI
 
 on:
   push:
-    branches: [ master ]
+    branches:
+      - master
+      - staging
+      - trying
   pull_request:
-    branches: [ master ]
+    branches:
+      - master
 
 jobs:
   build:

.github/workflows/autoclose-needs-info.yml

@@ -2,7 +2,7 @@ name: 'Close issues and PRs needing info for too long'
 on:
   schedule:
     - cron: '30 1 * * *'
-    
+
 permissions:
   issues: write
   pull-requests: write
@@ -17,7 +17,8 @@ jobs:
           days-before-close: 90
           close-issue-message: 'This issue is missing necessary information and cannot be worked on in its current state. It has therefore been closed to keep the issue tracker clean. If you have more information, feel free to reopen it.'
           close-pr-message: 'This PR is missing necessary information and cannot be merged in its current state. It has therefore been closed to keep the issue tracker clean. If you have more information, feel free to reopen it.'
-          only-labels: 'needs info'
-          stale-issue-label: 'needs info'
-          stale-pr-label: 'needs info'
+          only-labels: 'state: needs info'
+          stale-issue-label: 'state: needs info'
+          stale-pr-label: 'state: needs info'
           remove-stale-when-updated: false
+          enable-statistics: true

.github/workflows/changelog-to-fastlane.yml

@@ -1,7 +1,8 @@
 name: Convert CHANGELOG to Fastlane
 on:
   push:
-    branches: [ master ]
+    branches:
+      - master
 
 jobs:
   convert_changelog_to_fastlane:

.github/workflows/codeql-analysis.yml

@@ -13,10 +13,12 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [ master ]
+    branches:
+      - master
   pull_request:
     # The branches below must be a subset of the branches above
-    branches: [ master ]
+    branches:
+      - master
   schedule:
     - cron: '33 1 * * 4'
 

.scripts/changelog_to_fastlane.py

@@ -24,5 +24,10 @@ with open('CHANGELOG.md') as changelog:
             text.append(re.sub(r'\[(.*?)\]\((.*?)\)', r'\1 (\2)', line))
 
 for version, description in changelogs.items():
+    description = "".join(description).strip()
+
+    if not description:
+        continue
+
     with open(os.path.join("fastlane", "metadata", "android", "en-US", "changelogs", f"{version}.txt"), "w") as fastlane_file:
-        fastlane_file.write("".join(description).strip())
+        fastlane_file.write(description)

CHANGELOG.md

@@ -1,6 +1,96 @@
 # Changelog
 
-## v2.7 - 85 (2021-10-05)
+## v2.15.1 - 102 (2022-02-10)
+
+- Various minor fixes
+- Fix crash when using Norwegian translation
+
+## v2.15.0 - 101 (2022-02-06)
+
+- Fix cropper not using theme colour
+- Fix minor theming issues
+- Add pure black dark theme for OLED screens
+
+## v2.14.1 - 100 (2022-01-15)
+
+- Hide search, expand and sort icons until there is at least 1 card
+- Various theming fixes
+
+## v2.14.0 - 99 (2022-01-14)
+
+- Material You redesign
+
+## v2.13.1 - 98 (2022-01-09)
+
+- Fix various TalkBack-related bugs
+
+## v2.13.0 - 97 (2022-01-03)
+
+- Fixed pressing the save button multiple times creating multiple entries
+- Lower card header size when hiding details to fit even more cards
+- Restructure edit screen
+- Improve star icon contrast in main view
+
+## v2.12.0 - 96 (2021-12-23)
+
+- Add CODE 93 support
+- Various minor bugfixes and improvements
+
+## v2.11.2 - 95 (2021-12-04)
+
+- Fix crash on sharing card
+
+## v2.11.1 - 94 (2021-11-30)
+
+- Fix blurriness of main screen letter icons
+- Fix icons sometimes disappearing after selection
+- Fix status bar icons possibly being invisible on Android 5
+
+## v2.11.0 - 93 (2021-11-28)
+
+- Add Catima to [Quick Access Device Controls](https://developer.android.com/guide/topics/ui/device-control)
+- Fix some groups not showing up correctly in group management screen
+
+## v2.10.0 - 92 (2021-11-20)
+
+- New main screen layout
+- Fix bottomsheet sizing issues when switching in and out of fullscreen
+
+## v2.9.0 - 91 (2021-11-14)
+
+- Improved group management support
+- Support cropping images
+- Fix image data loss when saving after rotating in edit view
+- Ability to set a custom image as card icon
+
+## v2.8.1 - 90 (2021-10-27)
+
+- Fix dots in card view having the wrong colour when changing theme manually
+- Fix crash in card view on rotation/theme change
+- Fix flashing of cards list
+- Fix text overlaying star icon
+
+## v2.8.0 - 89 (2021-10-25)
+
+- Fix swiping between groups not working on an empty group
+- Allow password-protecting exports
+- Improve usage of space for QR codes
+- Save the last used zoom level per card
+- Fix a crash when swiping right after a tap
+
+## v2.7.3 - 88 (2021-10-10)
+
+- Fix incorrect migration making first card become invisible
+
+## v2.7.2 - 87 (2021-10-09)
+
+- Fix regression breaking import/export
+
+## v2.7.1 - 86 (2021-10-07)
+
+- Improve search with spaces
+
+## v2.7.0 - 85 (2021-10-05)
 
 Android 4.4 is no longer supported starting with this release. If you want to use Catima on Android 4.4, please use version 2.6.1.
 

FUNDING.yml

@@ -0,0 +1,3 @@
+github: TheLastProject
+custom:
+  - "https://paypal.me/sylviavanos"

app/build.gradle

@@ -18,8 +18,8 @@ android {
         applicationId "me.hackerchick.catima"
         minSdkVersion 21
         targetSdkVersion 31
-        versionCode 85
-        versionName "2.7.0"
+        versionCode 102
+        versionName "2.15.1"
 
         vectorDrawables.useSupportLibrary true
         multiDexEnabled true
@@ -49,8 +49,8 @@ android {
         // Flag to enable support for the new language APIs
         coreLibraryDesugaringEnabled true
 
-        sourceCompatibility JavaVersion.VERSION_1_8
-        targetCompatibility JavaVersion.VERSION_1_8
+        sourceCompatibility JavaVersion.VERSION_11
+        targetCompatibility JavaVersion.VERSION_11
     }
 
     lintOptions {
@@ -80,25 +80,25 @@ android {
 
 dependencies {
 // AndroidX
-    implementation "androidx.multidex:multidex:2.0.1"
-    implementation 'androidx.appcompat:appcompat:1.3.1'
-    implementation 'androidx.cardview:cardview:1.0.0'
-    implementation 'androidx.constraintlayout:constraintlayout:2.1.1'
+    implementation 'androidx.appcompat:appcompat:1.4.1'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
     implementation 'androidx.exifinterface:exifinterface:1.3.3'
-    implementation 'androidx.preference:preference:1.1.1'
-    implementation 'com.google.android.material:material:1.4.0'
+    implementation 'androidx.palette:palette:1.0.0'
+    implementation 'androidx.preference:preference:1.2.0'
+    implementation 'com.google.android.material:material:1.5.0'
+    implementation 'com.github.yalantis:ucrop:2.2.8'
     coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.1.5'
 
 // Splash Screen
-    implementation 'androidx.core:core-splashscreen:1.0.0-alpha02'
+    implementation 'androidx.core:core-splashscreen:1.0.0-beta01'
 
 // Third-party
-    implementation 'com.journeyapps:zxing-android-embedded:4.2.0@aar'
+    implementation 'com.journeyapps:zxing-android-embedded:4.3.0@aar'
     implementation 'com.google.zxing:core:3.4.1'
     implementation 'org.apache.commons:commons-csv:1.9.0'
     implementation 'com.jaredrummler:colorpicker:1.1.0'
-    implementation 'com.github.invissvenska:NumberPickerPreference:1.0.3'
-    implementation 'net.lingala.zip4j:zip4j:2.9.0'
+    implementation 'com.github.invissvenska:NumberPickerPreference:1.0.4'
+    implementation 'net.lingala.zip4j:zip4j:2.9.1'
 
 // SpotBugs
     implementation 'io.wcm.tooling.spotbugs:io.wcm.tooling.spotbugs.annotations:1.0.0'
@@ -106,7 +106,7 @@ dependencies {
 // Testing
     testImplementation 'androidx.test:core:1.4.0'
     testImplementation 'junit:junit:4.13.2'
-    testImplementation 'org.robolectric:robolectric:4.6.1'
+    testImplementation 'org.robolectric:robolectric:4.7.3'
 }
 
 tasks.withType(SpotBugsTask) {

app/src/main/AndroidManifest.xml

@@ -1,14 +1,13 @@
 <?xml version="1.0" encoding="utf-8"?>
-<manifest package="protect.card_locker"
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="protect.card_locker">
 
-    <uses-permission
-        android:name="android.permission.CAMERA"/>
-    <uses-permission
-        android:name="android.permission.READ_EXTERNAL_STORAGE"/>
-    <uses-permission
-        android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+    <uses-sdk tools:overrideLibrary="com.google.zxing.client.android" />
+
+    <uses-permission android:name="android.permission.CAMERA" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
 
     <uses-feature
         android:name="android.hardware.camera"
@@ -17,8 +16,6 @@
         android:name="android.hardware.camera.autofocus"
         android:required="false" />
 
-    <uses-sdk tools:overrideLibrary="com.google.zxing.client.android"/>
-
     <application
         android:name=".LoyaltyCardLockerApplication"
         android:allowBackup="true"
@@ -27,98 +24,117 @@
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
         <activity
-            android:name="protect.card_locker.MainActivity"
+            android:name=".MainActivity"
+            android:exported="true"
             android:label="@string/app_name"
-            android:theme="@style/Theme.App.Starting"
-            android:exported="true">
+            android:theme="@style/Theme.App.Starting">
             <intent-filter>
-                <action android:name="android.intent.action.MAIN"/>
+                <action android:name="android.intent.action.MAIN" />
 
-                <category android:name="android.intent.category.LAUNCHER"/>
+                <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
-
         <activity
             android:name=".AboutActivity"
             android:label="@string/about"
-            android:theme="@style/AppTheme.NoActionBar">
-        </activity>
+            android:theme="@style/AppTheme.NoActionBar" />
         <activity
             android:name=".ManageGroupsActivity"
             android:label="@string/groups"
-            android:theme="@style/AppTheme.NoActionBar">
-        </activity>
+            android:theme="@style/AppTheme.NoActionBar" />
+        <activity
+            android:name=".ManageGroupActivity"
+            android:label="@string/group_edit"
+            android:theme="@style/AppTheme.NoActionBar"/>
         <activity
             android:name=".LoyaltyCardViewActivity"
+            android:exported="true"
             android:theme="@style/AppTheme.NoActionBar"
-            android:windowSoftInputMode="stateHidden"
-            android:exported="true"/>
+            android:windowSoftInputMode="stateHidden" />
         <activity
             android:name=".LoyaltyCardEditActivity"
+            android:exported="true"
             android:theme="@style/AppTheme.NoActionBar"
-            android:windowSoftInputMode="stateHidden"
-            android:exported="true">
-            <intent-filter android:autoVerify="true" android:label="@string/app_name">
+            android:windowSoftInputMode="stateHidden">
+            <intent-filter
+                android:autoVerify="true"
+                android:label="@string/app_name">
                 <action android:name="android.intent.action.VIEW" />
+
                 <category android:name="android.intent.category.DEFAULT" />
                 <category android:name="android.intent.category.BROWSABLE" />
                 <!-- Main card sharing URIs -->
                 <data android:scheme="http" />
                 <data android:scheme="https" />
-
-                <data android:host="@string/intent_import_card_from_url_host_catima_app"
+                <data
+                    android:host="@string/intent_import_card_from_url_host_catima_app"
                     android:pathPrefix="@string/intent_import_card_from_url_path_prefix_catima_app" />
             </intent-filter>
             <intent-filter android:label="@string/app_name">
                 <action android:name="android.intent.action.VIEW" />
+
                 <category android:name="android.intent.category.DEFAULT" />
                 <category android:name="android.intent.category.BROWSABLE" />
                 <!-- Old card sharing URIs -->
                 <data android:scheme="http" />
                 <data android:scheme="https" />
-
-                <data android:host="@string/intent_import_card_from_url_host_thelastproject"
+                <data
+                    android:host="@string/intent_import_card_from_url_host_thelastproject"
                     android:pathPrefix="@string/intent_import_card_from_url_path_prefix_thelastproject" />
-                <data android:host="@string/intent_import_card_from_url_host_brarcher"
+                <data
+                    android:host="@string/intent_import_card_from_url_host_brarcher"
                     android:pathPrefix="@string/intent_import_card_from_url_path_prefix_brarcher" />
             </intent-filter>
         </activity>
         <activity
             android:name=".ScanActivity"
             android:label="@string/scanCardBarcode"
-            android:theme="@style/AppTheme.NoActionBar"/>
+            android:theme="@style/AppTheme.NoActionBar" />
         <activity
             android:name=".BarcodeSelectorActivity"
             android:label="@string/selectBarcodeTitle"
             android:theme="@style/AppTheme.NoActionBar"
-            android:windowSoftInputMode="stateHidden"/>
+            android:windowSoftInputMode="stateHidden" />
         <activity
             android:name=".preferences.SettingsActivity"
             android:label="@string/settings"
-            android:theme="@style/AppTheme.NoActionBar"/>
+            android:theme="@style/AppTheme.NoActionBar" />
         <activity
             android:name=".ImportExportActivity"
             android:label="@string/importExport"
-            android:theme="@style/AppTheme.NoActionBar"/>
+            android:theme="@style/AppTheme.NoActionBar" />
         <activity
             android:name=".CardShortcutConfigure"
+            android:exported="true"
             android:label="@string/cardShortcut"
-            android:theme="@style/AppTheme.NoActionBar"
-            android:exported="true">
+            android:theme="@style/AppTheme.NoActionBar">
             <intent-filter>
-                <action android:name="android.intent.action.CREATE_SHORTCUT"/>
-                <category android:name="android.intent.category.DEFAULT"/>
+                <action android:name="android.intent.action.CREATE_SHORTCUT" />
+
+                <category android:name="android.intent.category.DEFAULT" />
             </intent-filter>
         </activity>
+
+        <activity
+            android:name=".UCropWrapper"
+            android:theme="@style/AppTheme.NoActionBar" />
+
         <provider
             android:name="androidx.core.content.FileProvider"
-            android:grantUriPermissions="true"
+            android:authorities="${applicationId}"
             android:exported="false"
-            android:authorities="${applicationId}">
+            android:grantUriPermissions="true">
             <meta-data
                 android:name="android.support.FILE_PROVIDER_PATHS"
-                android:resource="@xml/file_provider_paths"/>
+                android:resource="@xml/file_provider_paths" />
         </provider>
+        <service android:name=".CardsOnPowerScreenService" android:label="@string/app_name"
+            android:permission="android.permission.BIND_CONTROLS" android:exported="true">
+            <intent-filter>
+                <action android:name="android.service.controls.ControlsProviderService" />
+            </intent-filter>
+        </service>
+
     </application>
 
-</manifest>
+</manifest>

app/src/main/java/protect/card_locker/AboutActivity.java

@@ -24,22 +24,19 @@ import androidx.appcompat.widget.Toolbar;
 import androidx.constraintlayout.widget.ConstraintLayout;
 import androidx.core.text.HtmlCompat;
 
-public class AboutActivity extends CatimaAppCompatActivity implements View.OnClickListener
-{
+public class AboutActivity extends CatimaAppCompatActivity implements View.OnClickListener {
     private static final String TAG = "Catima";
     ConstraintLayout version_history, translate, license, repo, privacy, error, credits, rate;
 
     @Override
-    protected void onCreate(Bundle savedInstanceState)
-    {
+    protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setTitle(R.string.about);
         setContentView(R.layout.about_activity);
         Toolbar toolbar = findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);
         ActionBar actionBar = getSupportActionBar();
-        if(actionBar != null)
-        {
+        if (actionBar != null) {
             actionBar.setDisplayHomeAsUpEnabled(true);
         }
 
@@ -59,7 +56,8 @@ public class AboutActivity extends CatimaAppCompatActivity implements View.OnCli
                 contributors.append("<br/>");
                 contributors.append(tmp);
             }
-        } catch (IOException ignored) {}
+        } catch (IOException ignored) {
+        }
 
         final List<ThirdPartyInfo> USED_LIBRARIES = new ArrayList<>();
         USED_LIBRARIES.add(new ThirdPartyInfo("Color Picker", "https://github.com/jaredrummler/ColorPicker", "Apache 2.0"));
@@ -73,14 +71,12 @@ public class AboutActivity extends CatimaAppCompatActivity implements View.OnCli
         USED_ASSETS.add(new ThirdPartyInfo("Android icons", "https://fonts.google.com/icons?selected=Material+Icons", "Apache 2.0"));
 
         StringBuilder libs = new StringBuilder().append("<br/>");
-        for (ThirdPartyInfo entry : USED_LIBRARIES)
-        {
+        for (ThirdPartyInfo entry : USED_LIBRARIES) {
             libs.append("<br/><a href=\"").append(entry.url()).append("\">").append(entry.name()).append("</a> (").append(entry.license()).append(")");
         }
 
         StringBuilder resources = new StringBuilder().append("<br/>");
-        for (ThirdPartyInfo entry : USED_ASSETS)
-        {
+        for (ThirdPartyInfo entry : USED_ASSETS) {
             resources.append("<br/><a href=\"").append(entry.url()).append("\">").append(entry.name()).append("</a> (").append(entry.license()).append(")");
         }
 
@@ -88,13 +84,10 @@ public class AboutActivity extends CatimaAppCompatActivity implements View.OnCli
         int year = Calendar.getInstance().get(Calendar.YEAR);
 
         String version = "?";
-        try
-        {
+        try {
             PackageInfo pi = getPackageManager().getPackageInfo(getPackageName(), 0);
             version = pi.versionName;
-        }
-        catch (PackageManager.NameNotFoundException e)
-        {
+        } catch (PackageManager.NameNotFoundException e) {
             Log.w(TAG, "Package name not found", e);
         }
 
@@ -134,13 +127,13 @@ public class AboutActivity extends CatimaAppCompatActivity implements View.OnCli
         credits.setOnClickListener(view -> new AlertDialog.Builder(this)
                 .setTitle(R.string.credits)
                 .setMessage(contributorInfo.toString())
-                .setPositiveButton(R.string.ok, (dialogInterface, i) -> {})
+                .setPositiveButton(R.string.ok, (dialogInterface, i) -> {
+                })
                 .show());
     }
 
     @Override
-    public boolean onOptionsItemSelected(MenuItem item)
-    {
+    public boolean onOptionsItemSelected(MenuItem item) {
         int id = item.getItemId();
         if (id == android.R.id.home) {
             finish();
@@ -158,13 +151,13 @@ public class AboutActivity extends CatimaAppCompatActivity implements View.OnCli
         } else if (id == R.id.translate) {
             url = "https://hosted.weblate.org/engage/catima/";
         } else if (id == R.id.license) {
-            url = "https://github.com/TheLastProject/Catima/blob/master/LICENSE";
+            url = "https://github.com/CatimaLoyalty/Android/blob/master/LICENSE";
         } else if (id == R.id.repo) {
-            url = "https://github.com/TheLastProject/Catima/";
+            url = "https://github.com/CatimaLoyalty/Android/";
         } else if (id == R.id.privacy) {
             url = "https://catima.app/privacy-policy/";
         } else if (id == R.id.report_error) {
-            url = "https://github.com/TheLastProject/Catima/issues";
+            url = "https://github.com/CatimaLoyalty/Android/issues";
         } else if (id == R.id.rate) {
             url = "https://play.google.com/store/apps/details?id=me.hackerchick.catima";
         } else {

app/src/main/java/protect/card_locker/BarcodeImageWriterTask.java

@@ -4,30 +4,29 @@ import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.Color;
 import android.graphics.PorterDuff;
-import android.os.AsyncTask;
 import android.util.Log;
 import android.view.View;
 import android.widget.ImageView;
 import android.widget.TextView;
 
-import com.google.zxing.BarcodeFormat;
 import com.google.zxing.MultiFormatWriter;
 import com.google.zxing.WriterException;
 import com.google.zxing.common.BitMatrix;
 
 import java.lang.ref.WeakReference;
 
+import protect.card_locker.async.CompatCallable;
+
 /**
  * This task will generate a barcode and load it into an ImageView.
  * Only a weak reference of the ImageView is kept, so this class will not
  * prevent the ImageView from being garbage collected.
  */
-class BarcodeImageWriterTask extends AsyncTask<Void, Void, Bitmap>
-{
+public class BarcodeImageWriterTask implements CompatCallable<Bitmap> {
     private static final String TAG = "Catima";
 
     private static final int IS_VALID = 999;
-    private Context mContext;
+    private final Context mContext;
     private boolean isSuccesful;
 
     // When drawn in a smaller window 1D barcodes for some reason end up
@@ -44,10 +43,11 @@ class BarcodeImageWriterTask extends AsyncTask<Void, Void, Bitmap>
     private final boolean showFallback;
     private final Runnable callback;
 
-    BarcodeImageWriterTask(Context context, ImageView imageView, String cardIdString,
-                           CatimaBarcode barcodeFormat, TextView textView,
-                           boolean showFallback, Runnable callback)
-    {
+    BarcodeImageWriterTask(
+            Context context, ImageView imageView, String cardIdString,
+            CatimaBarcode barcodeFormat, TextView textView,
+            boolean showFallback, Runnable callback
+    ) {
         mContext = context;
 
         isSuccesful = true;
@@ -62,26 +62,21 @@ class BarcodeImageWriterTask extends AsyncTask<Void, Void, Bitmap>
 
         final int MAX_WIDTH = getMaxWidth(format);
 
-        if(imageView.getWidth() < MAX_WIDTH)
-        {
+        if (imageView.getWidth() < MAX_WIDTH) {
             imageHeight = imageView.getHeight();
             imageWidth = imageView.getWidth();
-        }
-        else
-        {
+        } else {
             // Scale down the image to reduce the memory needed to produce it
             imageWidth = MAX_WIDTH;
-            double ratio = (double)MAX_WIDTH / (double)imageView.getWidth();
-            imageHeight = (int)(imageView.getHeight() * ratio);
+            double ratio = (double) MAX_WIDTH / (double) imageView.getWidth();
+            imageHeight = (int) (imageView.getHeight() * ratio);
         }
 
         this.showFallback = showFallback;
     }
 
-    private int getMaxWidth(CatimaBarcode format)
-    {
-        switch(format.format())
-        {
+    private int getMaxWidth(CatimaBarcode format) {
+        switch (format.format()) {
             // 2D barcodes
             case AZTEC:
             case DATA_MATRIX:
@@ -108,10 +103,8 @@ class BarcodeImageWriterTask extends AsyncTask<Void, Void, Bitmap>
         }
     }
 
-    private String getFallbackString(CatimaBarcode format)
-    {
-        switch(format.format())
-        {
+    private String getFallbackString(CatimaBarcode format) {
+        switch (format.format()) {
             // 2D barcodes
             case AZTEC:
                 return "AZTEC";
@@ -127,6 +120,8 @@ class BarcodeImageWriterTask extends AsyncTask<Void, Void, Bitmap>
                 return "C0C";
             case CODE_39:
                 return "CODE_39";
+            case CODE_93:
+                return "CODE_93";
             case CODE_128:
                 return "CODE_128";
             case EAN_8:
@@ -144,23 +139,17 @@ class BarcodeImageWriterTask extends AsyncTask<Void, Void, Bitmap>
         }
     }
 
-    private Bitmap generate()
-    {
-        if (cardId.isEmpty())
-        {
+    private Bitmap generate() {
+        if (cardId.isEmpty()) {
             return null;
         }
 
         MultiFormatWriter writer = new MultiFormatWriter();
         BitMatrix bitMatrix;
-        try
-        {
-            try
-            {
+        try {
+            try {
                 bitMatrix = writer.encode(cardId, format.format(), imageWidth, imageHeight, null);
-            }
-            catch(Exception e)
-            {
+            } catch (Exception e) {
                 // Cast a wider net here and catch any exception, as there are some
                 // cases where an encoder may fail if the data is invalid for the
                 // barcode type. If this happens, we want to fail gracefully.
@@ -175,11 +164,9 @@ class BarcodeImageWriterTask extends AsyncTask<Void, Void, Bitmap>
 
             int[] pixels = new int[bitMatrixWidth * bitMatrixHeight];
 
-            for (int y = 0; y < bitMatrixHeight; y++)
-            {
+            for (int y = 0; y < bitMatrixHeight; y++) {
                 int offset = y * bitMatrixWidth;
-                for (int x = 0; x < bitMatrixWidth; x++)
-                {
+                for (int x = 0; x < bitMatrixWidth; x++) {
                     int color = bitMatrix.get(x, y) ? BLACK : WHITE;
                     pixels[offset + x] = color;
                 }
@@ -199,19 +186,14 @@ class BarcodeImageWriterTask extends AsyncTask<Void, Void, Bitmap>
             int widthScale = imageWidth / bitMatrixHeight;
             int scalingFactor = Math.min(heightScale, widthScale);
 
-            if(scalingFactor > 1)
-            {
+            if (scalingFactor > 1) {
                 bitmap = Bitmap.createScaledBitmap(bitmap, bitMatrixWidth * scalingFactor, bitMatrixHeight * scalingFactor, false);
             }
 
             return bitmap;
-        }
-        catch (WriterException e)
-        {
+        } catch (WriterException e) {
             Log.e(TAG, "Failed to generate barcode of type " + format + ": " + cardId, e);
-        }
-        catch(OutOfMemoryError e)
-        {
+        } catch (OutOfMemoryError e) {
             Log.w(TAG, "Insufficient memory to render barcode, "
                     + imageWidth + "x" + imageHeight + ", " + format.name()
                     + ", length=" + cardId.length(), e);
@@ -220,29 +202,36 @@ class BarcodeImageWriterTask extends AsyncTask<Void, Void, Bitmap>
         return null;
     }
 
-    public Bitmap doInBackground(Void... params)
-    {
-        Bitmap bitmap = generate();
+    public Bitmap doInBackground(Void... params) {
+        // Only do the hard tasks if we've not already been cancelled
+        if (!Thread.currentThread().isInterrupted()) {
+            Bitmap bitmap = generate();
 
-        if (bitmap == null) {
-            isSuccesful = false;
+            if (bitmap == null) {
+                isSuccesful = false;
 
-            if (showFallback) {
-                Log.i(TAG, "Barcode generation failed, generating fallback...");
-                cardId = getFallbackString(format);
-                bitmap = generate();
+                if (showFallback && !Thread.currentThread().isInterrupted()) {
+                    Log.i(TAG, "Barcode generation failed, generating fallback...");
+                    cardId = getFallbackString(format);
+                    bitmap = generate();
+                    return bitmap;
+                }
+            } else {
+                return bitmap;
             }
         }
 
-        return bitmap;
+        // We've been interrupted - create a empty fallback
+        Bitmap.Config config = Bitmap.Config.ARGB_8888;
+        return Bitmap.createBitmap(imageWidth, imageHeight, config);
     }
 
-    protected void onPostExecute(Bitmap result)
-    {
+    public void onPostExecute(Object castResult) {
+        Bitmap result = (Bitmap) castResult;
+
         Log.i(TAG, "Finished generating barcode image of type " + format + ": " + cardId);
         ImageView imageView = imageViewReference.get();
-        if(imageView == null)
-        {
+        if (imageView == null) {
             // The ImageView no longer exists, nothing to do
             return;
         }
@@ -255,8 +244,7 @@ class BarcodeImageWriterTask extends AsyncTask<Void, Void, Bitmap>
         imageView.setContentDescription(mContext.getString(R.string.barcodeImageDescriptionWithType, formatPrettyName));
         TextView textView = textViewReference.get();
 
-        if(result != null)
-        {
+        if (result != null) {
             Log.i(TAG, "Displaying barcode");
             imageView.setVisibility(View.VISIBLE);
 
@@ -270,9 +258,7 @@ class BarcodeImageWriterTask extends AsyncTask<Void, Void, Bitmap>
                 textView.setVisibility(View.VISIBLE);
                 textView.setText(formatPrettyName);
             }
-        }
-        else
-        {
+        } else {
             Log.i(TAG, "Barcode generation failed, removing image from display");
             imageView.setVisibility(View.GONE);
             if (textView != null) {
@@ -284,4 +270,19 @@ class BarcodeImageWriterTask extends AsyncTask<Void, Void, Bitmap>
             callback.run();
         }
     }
+
+    @Override
+    public void onPreExecute() {
+        // No Action
+    }
+
+    /**
+     * Provided to comply with Callable while keeping the original Syntax of AsyncTask
+     *
+     * @return generated Bitmap
+     */
+    @Override
+    public Bitmap call() {
+        return doInBackground();
+    }
 }

app/src/main/java/protect/card_locker/BarcodeSelectorActivity.java

@@ -2,26 +2,19 @@ package protect.card_locker;
 
 import android.app.Activity;
 import android.content.Intent;
-import android.os.AsyncTask;
 import android.os.Bundle;
+import android.os.Handler;
+import android.os.Looper;
 import android.util.Log;
-import android.util.Pair;
 import android.view.MenuItem;
 import android.view.View;
-import android.view.ViewTreeObserver;
 import android.widget.EditText;
-import android.widget.ImageView;
-import android.widget.TextView;
+import android.widget.ListView;
 import android.widget.Toast;
 
 import com.google.zxing.BarcodeFormat;
 
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.LinkedList;
-import java.util.Map;
+import java.util.ArrayList;
 
 import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.widget.Toolbar;
@@ -32,66 +25,59 @@ import androidx.appcompat.widget.Toolbar;
  * the data. The user may then select any barcode, where its
  * data and type will be returned to the caller.
  */
-public class BarcodeSelectorActivity extends CatimaAppCompatActivity
-{
+public class BarcodeSelectorActivity extends CatimaAppCompatActivity implements BarcodeSelectorAdapter.BarcodeSelectorListener {
     private static final String TAG = "Catima";
 
     // Result this activity will return
     public static final String BARCODE_CONTENTS = "contents";
     public static final String BARCODE_FORMAT = "format";
 
-    private Map<String, Pair<Integer, Integer>> barcodeViewMap;
-    private LinkedList<AsyncTask> barcodeGeneratorTasks = new LinkedList<>();
+    private final Handler typingDelayHandler = new Handler(Looper.getMainLooper());
+    public static final Integer INPUT_DELAY = 250;
+
+    private BarcodeSelectorAdapter mAdapter;
 
     @Override
-    protected void onCreate(Bundle savedInstanceState)
-    {
+    protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setTitle(R.string.selectBarcodeTitle);
         setContentView(R.layout.barcode_selector_activity);
         Toolbar toolbar = findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);
         ActionBar actionBar = getSupportActionBar();
-        if(actionBar != null)
-        {
+        if (actionBar != null) {
             actionBar.setDisplayHomeAsUpEnabled(true);
         }
 
-        barcodeViewMap = new HashMap<>();
-        barcodeViewMap.put(BarcodeFormat.AZTEC.name(), new Pair<>(R.id.aztecBarcode, R.id.aztecBarcodeText));
-        barcodeViewMap.put(BarcodeFormat.CODE_39.name(), new Pair<>(R.id.code39Barcode, R.id.code39BarcodeText));
-        barcodeViewMap.put(BarcodeFormat.CODE_128.name(), new Pair<>(R.id.code128Barcode, R.id.code128BarcodeText));
-        barcodeViewMap.put(BarcodeFormat.CODABAR.name(), new Pair<>(R.id.codabarBarcode, R.id.codabarBarcodeText));
-        barcodeViewMap.put(BarcodeFormat.DATA_MATRIX.name(), new Pair<>(R.id.datamatrixBarcode, R.id.datamatrixBarcodeText));
-        barcodeViewMap.put(BarcodeFormat.EAN_8.name(), new Pair<>(R.id.ean8Barcode, R.id.ean8BarcodeText));
-        barcodeViewMap.put(BarcodeFormat.EAN_13.name(), new Pair<>(R.id.ean13Barcode, R.id.ean13BarcodeText));
-        barcodeViewMap.put(BarcodeFormat.ITF.name(), new Pair<>(R.id.itfBarcode, R.id.itfBarcodeText));
-        barcodeViewMap.put(BarcodeFormat.PDF_417.name(), new Pair<>(R.id.pdf417Barcode, R.id.pdf417BarcodeText));
-        barcodeViewMap.put(BarcodeFormat.QR_CODE.name(), new Pair<>(R.id.qrcodeBarcode, R.id.qrcodeBarcodeText));
-        barcodeViewMap.put(BarcodeFormat.UPC_A.name(), new Pair<>(R.id.upcaBarcode, R.id.upcaBarcodeText));
-        barcodeViewMap.put(BarcodeFormat.UPC_E.name(), new Pair<>(R.id.upceBarcode, R.id.upceBarcodeText));
-
         EditText cardId = findViewById(R.id.cardId);
-        cardId.addTextChangedListener(new SimpleTextWatcher()
-        {
+        ListView mBarcodeList = findViewById(R.id.barcodes);
+        mAdapter = new BarcodeSelectorAdapter(this, new ArrayList<>(), this);
+        mBarcodeList.setAdapter(mAdapter);
+
+        cardId.addTextChangedListener(new SimpleTextWatcher() {
             @Override
-            public void onTextChanged(CharSequence s, int start, int before, int count)
-            {
-                Log.d(TAG, "Entered text: " + s);
+            public void onTextChanged(CharSequence s, int start, int before, int count) {
+                // Delay the input processing so we avoid overload
+                typingDelayHandler.removeCallbacksAndMessages(null);
 
-                generateBarcodes(s.toString());
+                typingDelayHandler.postDelayed(() -> {
+                    Log.d(TAG, "Entered text: " + s);
 
-                View noBarcodeButtonView = findViewById(R.id.noBarcode);
-                setButtonListener(noBarcodeButtonView, s.toString());
-                noBarcodeButtonView.setEnabled(s.length() > 0);
+                    runOnUiThread(() -> {
+                        generateBarcodes(s.toString());
+
+                        View noBarcodeButtonView = findViewById(R.id.noBarcode);
+                        setButtonListener(noBarcodeButtonView, s.toString());
+                        noBarcodeButtonView.setEnabled(s.length() > 0);
+                    });
+                }, INPUT_DELAY);
             }
         });
 
         final Bundle b = getIntent().getExtras();
         final String initialCardId = b != null ? b.getString("initialCardId") : null;
 
-        if(initialCardId != null)
-        {
+        if (initialCardId != null) {
             cardId.setText(initialCardId);
         } else {
             generateBarcodes("");
@@ -99,24 +85,16 @@ public class BarcodeSelectorActivity extends CatimaAppCompatActivity
     }
 
     private void generateBarcodes(String value) {
-        // Stop any async tasks which may not have been started yet
-        for(AsyncTask task : barcodeGeneratorTasks)
-        {
-            task.cancel(false);
-        }
-        barcodeGeneratorTasks.clear();
-
         // Update barcodes
-        for(Map.Entry<String, Pair<Integer, Integer>> entry : barcodeViewMap.entrySet())
-        {
-            ImageView image = findViewById(entry.getValue().first);
-            TextView text = findViewById(entry.getValue().second);
-            createBarcodeOption(image, entry.getKey(), value, text);
+        ArrayList<CatimaBarcodeWithValue> barcodes = new ArrayList<>();
+        for (BarcodeFormat barcodeFormat : CatimaBarcode.barcodeFormats) {
+            CatimaBarcode catimaBarcode = CatimaBarcode.fromBarcode(barcodeFormat);
+            barcodes.add(new CatimaBarcodeWithValue(catimaBarcode, value));
         }
+        mAdapter.setBarcodes(barcodes);
     }
 
-    private void setButtonListener(final View button, final String cardId)
-    {
+    private void setButtonListener(final View button, final String cardId) {
         button.setOnClickListener(view -> {
             Log.d(TAG, "Selected no barcode");
             Intent result = new Intent();
@@ -127,60 +105,9 @@ public class BarcodeSelectorActivity extends CatimaAppCompatActivity
         });
     }
 
-    private void createBarcodeOption(final ImageView image, final String formatType, final String cardId, final TextView text)
-    {
-        final CatimaBarcode format = CatimaBarcode.fromName(formatType);
-
-        image.setImageBitmap(null);
-        image.setOnClickListener(v -> {
-            Log.d(TAG, "Selected barcode type " + formatType);
-
-            if (!((boolean) image.getTag())) {
-                Toast.makeText(BarcodeSelectorActivity.this, getString(R.string.wrongValueForBarcodeType), Toast.LENGTH_LONG).show();
-                return;
-            }
-
-            Intent result = new Intent();
-            result.putExtra(BARCODE_FORMAT, formatType);
-            result.putExtra(BARCODE_CONTENTS, cardId);
-            BarcodeSelectorActivity.this.setResult(RESULT_OK, result);
-            finish();
-        });
-
-        if(image.getHeight() == 0)
-        {
-            // The size of the ImageView is not yet available as it has not
-            // yet been drawn. Wait for it to be drawn so the size is available.
-            image.getViewTreeObserver().addOnGlobalLayoutListener(
-                new ViewTreeObserver.OnGlobalLayoutListener()
-                {
-                    @Override
-                    public void onGlobalLayout()
-                    {
-                        Log.d(TAG, "Global layout finished, type: + " + formatType + ", width: " + image.getWidth());
-                        image.getViewTreeObserver().removeOnGlobalLayoutListener(this);
-
-                        Log.d(TAG, "Generating barcode for type " + formatType);
-                        BarcodeImageWriterTask task = new BarcodeImageWriterTask(getApplicationContext(), image, cardId, format, text, true, null);
-                        barcodeGeneratorTasks.add(task);
-                        task.execute();
-                    }
-                });
-        }
-        else
-        {
-            Log.d(TAG, "Generating barcode for type " + formatType);
-            BarcodeImageWriterTask task = new BarcodeImageWriterTask(getApplicationContext(), image, cardId, format, text, true, null);
-            barcodeGeneratorTasks.add(task);
-            task.execute();
-        }
-    }
-
     @Override
-    public boolean onOptionsItemSelected(MenuItem item)
-    {
-        if (item.getItemId() == android.R.id.home)
-        {
+    public boolean onOptionsItemSelected(MenuItem item) {
+        if (item.getItemId() == android.R.id.home) {
             setResult(Activity.RESULT_CANCELED);
             finish();
             return true;
@@ -188,4 +115,26 @@ public class BarcodeSelectorActivity extends CatimaAppCompatActivity
 
         return super.onOptionsItemSelected(item);
     }
+
+    @Override
+    public void onRowClicked(int inputPosition, View view) {
+        CatimaBarcodeWithValue barcodeWithValue = mAdapter.getItem(inputPosition);
+        CatimaBarcode catimaBarcode = barcodeWithValue.catimaBarcode();
+
+        if (!mAdapter.isValid(view)) {
+            Toast.makeText(this, getString(R.string.wrongValueForBarcodeType), Toast.LENGTH_LONG).show();
+            return;
+        }
+
+        String barcodeFormat = catimaBarcode.format().name();
+        String value = barcodeWithValue.value();
+
+        Log.d(TAG, "Selected barcode type " + barcodeFormat);
+
+        Intent result = new Intent();
+        result.putExtra(BARCODE_FORMAT, barcodeFormat);
+        result.putExtra(BARCODE_CONTENTS, value);
+        BarcodeSelectorActivity.this.setResult(RESULT_OK, result);
+        finish();
+    }
 }

app/src/main/java/protect/card_locker/BarcodeSelectorAdapter.java

@@ -0,0 +1,102 @@
+package protect.card_locker;
+
+import android.content.Context;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.ViewTreeObserver;
+import android.widget.ArrayAdapter;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import java.util.ArrayList;
+
+import protect.card_locker.async.TaskHandler;
+
+public class BarcodeSelectorAdapter extends ArrayAdapter<CatimaBarcodeWithValue> {
+    private static final String TAG = "Catima";
+
+    private final TaskHandler mTasks = new TaskHandler();
+    private final BarcodeSelectorListener mListener;
+
+    private static class ViewHolder {
+        ImageView image;
+        TextView text;
+    }
+
+    public interface BarcodeSelectorListener {
+        void onRowClicked(int inputPosition, View view);
+    }
+
+    public BarcodeSelectorAdapter(Context context, ArrayList<CatimaBarcodeWithValue> barcodes, BarcodeSelectorListener barcodeSelectorListener) {
+        super(context, 0, barcodes);
+        mListener = barcodeSelectorListener;
+    }
+
+    public void setBarcodes(ArrayList<CatimaBarcodeWithValue> barcodes) {
+        clear();
+        addAll(barcodes);
+        notifyDataSetChanged();
+        mTasks.flushTaskList(TaskHandler.TYPE.BARCODE, true, false, false);
+    }
+
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+        CatimaBarcodeWithValue catimaBarcodeWithValue = getItem(position);
+        CatimaBarcode catimaBarcode = catimaBarcodeWithValue.catimaBarcode();
+        String value = catimaBarcodeWithValue.value();
+
+        ViewHolder viewHolder;
+        if (convertView == null) {
+            viewHolder = new ViewHolder();
+            LayoutInflater inflater = LayoutInflater.from(getContext());
+            convertView = inflater.inflate(R.layout.barcode_layout, parent, false);
+            viewHolder.image = convertView.findViewById(R.id.barcodeImage);
+            viewHolder.text = convertView.findViewById(R.id.barcodeName);
+            convertView.setTag(viewHolder);
+        } else {
+            viewHolder = (ViewHolder) convertView.getTag();
+        }
+
+        createBarcodeOption(viewHolder.image, catimaBarcode.format().name(), value, viewHolder.text);
+
+        View finalConvertView = convertView;
+        convertView.setOnClickListener(view -> mListener.onRowClicked(position, finalConvertView));
+
+        return convertView;
+    }
+
+    public boolean isValid(View view) {
+        ViewHolder viewHolder = (ViewHolder) view.getTag();
+        return viewHolder.image.getTag() != null && (boolean) viewHolder.image.getTag();
+    }
+
+    private void createBarcodeOption(final ImageView image, final String formatType, final String cardId, final TextView text) {
+        final CatimaBarcode format = CatimaBarcode.fromName(formatType);
+
+        image.setImageBitmap(null);
+
+        if (image.getHeight() == 0) {
+            // The size of the ImageView is not yet available as it has not
+            // yet been drawn. Wait for it to be drawn so the size is available.
+            image.getViewTreeObserver().addOnGlobalLayoutListener(
+                    new ViewTreeObserver.OnGlobalLayoutListener() {
+                        @Override
+                        public void onGlobalLayout() {
+                            Log.d(TAG, "Global layout finished, type: + " + formatType + ", width: " + image.getWidth());
+                            image.getViewTreeObserver().removeOnGlobalLayoutListener(this);
+
+                            Log.d(TAG, "Generating barcode for type " + formatType);
+
+                            BarcodeImageWriterTask barcodeWriter = new BarcodeImageWriterTask(getContext(), image, cardId, format, text, true, null);
+                            mTasks.executeTask(TaskHandler.TYPE.BARCODE, barcodeWriter);
+                        }
+                    });
+        } else {
+            Log.d(TAG, "Generating barcode for type " + formatType);
+            BarcodeImageWriterTask barcodeWriter = new BarcodeImageWriterTask(getContext(), image, cardId, format, text, true, null);
+            mTasks.executeTask(TaskHandler.TYPE.BARCODE, barcodeWriter);
+        }
+    }
+}

app/src/main/java/protect/card_locker/BaseCursorAdapter.java

@@ -4,30 +4,30 @@ import android.database.Cursor;
 
 import androidx.recyclerview.widget.RecyclerView;
 
-public abstract class BaseCursorAdapter<V extends RecyclerView.ViewHolder> extends RecyclerView.Adapter<V>
-{
-    private Cursor mCursor;
+public abstract class BaseCursorAdapter<V extends RecyclerView.ViewHolder> extends RecyclerView.Adapter<V> {
+    public Cursor mCursor;
     private boolean mDataValid;
     private int mRowIDColumn;
 
-    public BaseCursorAdapter(Cursor inputCursor)
-    {
+    private String mRowIDColumnName;
+
+    public BaseCursorAdapter(Cursor inputCursor, String rowIDColumnName) {
         setHasStableIds(true);
+
+        mRowIDColumnName = rowIDColumnName;
+
         swapCursor(inputCursor);
     }
 
     public abstract void onBindViewHolder(V inputHolder, Cursor inputCursor);
 
     @Override
-    public void onBindViewHolder(V inputHolder, int inputPosition)
-    {
-        if (!mDataValid)
-        {
+    public void onBindViewHolder(V inputHolder, int inputPosition) {
+        if (!mDataValid) {
             throw new IllegalStateException("Cannot bind view holder when cursor is in invalid state.");
         }
 
-        if (!mCursor.moveToPosition(inputPosition))
-        {
+        if (!mCursor.moveToPosition(inputPosition)) {
             throw new IllegalStateException("Could not move cursor to position " + inputPosition + " when trying to bind view holder");
         }
 
@@ -35,49 +35,38 @@ public abstract class BaseCursorAdapter<V extends RecyclerView.ViewHolder> exten
     }
 
     @Override
-    public int getItemCount()
-    {
-        if (mDataValid)
-        {
+    public int getItemCount() {
+        if (mDataValid) {
             return mCursor.getCount();
-        }
-        else
-        {
+        } else {
             return 0;
         }
     }
 
     @Override
-    public long getItemId(int inputPosition)
-    {
-        if (!mDataValid)
-        {
+    public long getItemId(int inputPosition) {
+        if (!mDataValid) {
             throw new IllegalStateException("Cannot lookup item id when cursor is in invalid state.");
         }
 
-        if (!mCursor.moveToPosition(inputPosition))
-        {
+        if (!mCursor.moveToPosition(inputPosition)) {
             throw new IllegalStateException("Could not move cursor to position " + inputPosition + " when trying to get an item id");
         }
 
         return mCursor.getLong(mRowIDColumn);
     }
 
-    public void swapCursor(Cursor inputCursor)
-    {
-        if (inputCursor == mCursor)
-        {
+    public void swapCursor(Cursor inputCursor) {
+        if (inputCursor == mCursor) {
             return;
         }
 
-        if (inputCursor != null)
-        {
+        if (inputCursor != null) {
             mCursor = inputCursor;
+            mRowIDColumn = mCursor.getColumnIndex(mRowIDColumnName);
             mDataValid = true;
             notifyDataSetChanged();
-        }
-        else
-        {
+        } else {
             notifyItemRangeRemoved(0, getItemCount());
             mCursor = null;
             mRowIDColumn = -1;

app/src/main/java/protect/card_locker/CardShortcutConfigure.java

@@ -1,69 +1,58 @@
 package protect.card_locker;
 
 import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
 import android.os.Bundle;
 import android.util.Log;
-import android.view.View;
 import android.widget.Toast;
 
-import com.google.android.material.floatingactionbutton.FloatingActionButton;
-
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.appcompat.widget.Toolbar;
 import androidx.core.content.pm.ShortcutInfoCompat;
 import androidx.core.content.pm.ShortcutManagerCompat;
-import androidx.recyclerview.widget.DefaultItemAnimator;
-import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.GridLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 
 /**
  * The configuration screen for creating a shortcut.
  */
-public class CardShortcutConfigure extends AppCompatActivity implements LoyaltyCardCursorAdapter.CardAdapterListener
-{
+public class CardShortcutConfigure extends AppCompatActivity implements LoyaltyCardCursorAdapter.CardAdapterListener {
     static final String TAG = "Catima";
-    final DBHelper mDb = new DBHelper(this);
+    private SQLiteDatabase mDatabase;
 
     @Override
     public void onCreate(Bundle bundle) {
         super.onCreate(bundle);
 
+        mDatabase = new DBHelper(this).getReadableDatabase();
+
         // Set the result to CANCELED.  This will cause nothing to happen if the
         // aback button is pressed.
         setResult(RESULT_CANCELED);
 
-        setContentView(R.layout.main_activity);
+        setContentView(R.layout.simple_toolbar_list_activity);
         Toolbar toolbar = findViewById(R.id.toolbar);
-        toolbar.setVisibility(View.GONE);
-
-        // Hide new button because it won't work here anyway
-        FloatingActionButton newFab = findViewById(R.id.fabAdd);
-        newFab.setVisibility(View.GONE);
-
-        final DBHelper db = new DBHelper(this);
+        toolbar.setTitle(R.string.shortcutSelectCard);
 
         // If there are no cards, bail
-        if (db.getLoyaltyCardCount() == 0) {
+        if (DBHelper.getLoyaltyCardCount(mDatabase) == 0) {
             Toast.makeText(this, R.string.noCardsMessage, Toast.LENGTH_LONG).show();
             finish();
         }
 
         final RecyclerView cardList = findViewById(R.id.list);
+        GridLayoutManager layoutManager = (GridLayoutManager) cardList.getLayoutManager();
+        if (layoutManager != null) {
+            layoutManager.setSpanCount(getResources().getInteger(R.integer.main_view_card_columns));
+        }
 
-        RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(getApplicationContext());
-        cardList.setLayoutManager(mLayoutManager);
-        cardList.setItemAnimator(new DefaultItemAnimator());
-
-        cardList.setVisibility(View.VISIBLE);
-
-        Cursor cardCursor = db.getLoyaltyCardCursor();
-
+        Cursor cardCursor = DBHelper.getLoyaltyCardCursor(mDatabase);
         final LoyaltyCardCursorAdapter adapter = new LoyaltyCardCursorAdapter(this, cardCursor, this);
         cardList.setAdapter(adapter);
     }
 
     private void onClickAction(int position) {
-        Cursor selected = mDb.getLoyaltyCardCursor();
+        Cursor selected = DBHelper.getLoyaltyCardCursor(mDatabase);
         selected.moveToPosition(position);
         LoyaltyCard loyaltyCard = LoyaltyCard.toLoyaltyCard(selected);
 

app/src/main/java/protect/card_locker/CardsOnPowerScreenService.java

@@ -0,0 +1,167 @@
+package protect.card_locker;
+
+import android.annotation.SuppressLint;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+import android.graphics.Bitmap;
+import android.graphics.drawable.Icon;
+import android.os.Build;
+import android.service.controls.Control;
+import android.service.controls.ControlsProviderService;
+import android.service.controls.DeviceTypes;
+import android.service.controls.actions.ControlAction;
+import android.service.controls.templates.StatelessTemplate;
+import android.util.Log;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.RequiresApi;
+
+import java.util.List;
+import java.util.concurrent.Flow;
+import java.util.function.Consumer;
+
+@RequiresApi(Build.VERSION_CODES.R)
+public class CardsOnPowerScreenService extends ControlsProviderService {
+
+    public static final String PREFIX = "catima-";
+    static final String TAG = "Catima";
+    private SQLiteDatabase mDatabase;
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+
+        mDatabase = new DBHelper(this).getReadableDatabase();
+    }
+
+    @NonNull
+    @Override
+    public Flow.Publisher<Control> createPublisherForAllAvailable() {
+        Cursor loyaltyCardCursor = DBHelper.getLoyaltyCardCursor(mDatabase);
+        return subscriber -> {
+            while (loyaltyCardCursor.moveToNext()) {
+                LoyaltyCard card = LoyaltyCard.toLoyaltyCard(loyaltyCardCursor);
+                Intent openIntent = new Intent(this, LoyaltyCardViewActivity.class)
+                        .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+                        .putExtra("id", card.id);
+                PendingIntent pendingIntent = PendingIntent.getActivity(getBaseContext(), card.id, openIntent, PendingIntent.FLAG_IMMUTABLE);
+                subscriber.onNext(
+                        new Control.StatelessBuilder(PREFIX + card.id, pendingIntent)
+                                .setControlId(PREFIX + card.id)
+                                .setTitle(card.store)
+                                .setDeviceType(DeviceTypes.TYPE_GENERIC_OPEN_CLOSE)
+                                .setSubtitle(card.note)
+                                .setCustomIcon(Icon.createWithBitmap(getIcon(this, card)))
+                                .build()
+                );
+            }
+            subscriber.onComplete();
+        };
+    }
+
+    @NonNull
+    @Override
+    public Flow.Publisher<Control> createPublisherFor(@NonNull List<String> controlIds) {
+        return subscriber -> {
+            subscriber.onSubscribe(new NoOpSubscription());
+            for (String controlId : controlIds) {
+                Control control;
+
+                try {
+                    Integer cardId = this.controlIdToCardId(controlId);
+                    LoyaltyCard card = DBHelper.getLoyaltyCard(mDatabase, cardId);
+                    Intent openIntent = new Intent(this, LoyaltyCardViewActivity.class)
+                            .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+                            .putExtra("id", card.id);
+                    PendingIntent pendingIntent = PendingIntent.getActivity(getBaseContext(), card.id, openIntent, PendingIntent.FLAG_IMMUTABLE);
+                    control = new Control.StatefulBuilder(controlId, pendingIntent)
+                            .setTitle(card.store)
+                            .setDeviceType(DeviceTypes.TYPE_GENERIC_OPEN_CLOSE)
+                            .setSubtitle(card.note)
+                            .setStatus(Control.STATUS_OK)
+                            .setControlTemplate(new StatelessTemplate(controlId))
+                            .setCustomIcon(Icon.createWithBitmap(getIcon(this, card)))
+                            .build();
+                } catch (NullPointerException ignored) {
+                    Intent mainScreenIntent = new Intent(this, MainActivity.class)
+                            .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                    PendingIntent pendingIntent = PendingIntent.getActivity(getBaseContext(), -1, mainScreenIntent, PendingIntent.FLAG_IMMUTABLE);
+                    control = new Control.StatefulBuilder(controlId, pendingIntent)
+                            .setStatus(Control.STATUS_NOT_FOUND)
+                            .build();
+                }
+                Log.d(TAG, "Dispatching widget " + controlId);
+                subscriber.onNext(control);
+            }
+            subscriber.onComplete();
+        };
+    }
+
+    private Bitmap getIcon(Context context, LoyaltyCard loyaltyCard) {
+        Bitmap cardIcon = Utils.retrieveCardImage(context, loyaltyCard.id, ImageLocationType.icon);
+
+        if (cardIcon != null) {
+            return cardIcon;
+        }
+
+        return Utils.generateIcon(this, loyaltyCard.store, loyaltyCard.headerColor).getLetterTile();
+    }
+
+    private Integer controlIdToCardId(String controlId) {
+        if (controlId == null)
+            return null;
+        if (!controlId.startsWith(PREFIX)) {
+            Log.w(TAG, "Unsupported control ID format: " + controlId);
+            return null;
+        }
+        controlId = controlId.substring(PREFIX.length());
+        try {
+            return Integer.parseInt(controlId);
+        } catch (RuntimeException ex) {
+            Log.e(TAG, "Unsupported control ID format. Expected numeric after prefix, found: " + controlId);
+            return null;
+        }
+    }
+
+    @Override
+    public void performControlAction(@NonNull String controlId, @NonNull ControlAction action, @NonNull Consumer<Integer> consumer) {
+        consumer.accept(ControlAction.RESPONSE_OK);
+        Intent openIntent = new Intent(this, LoyaltyCardViewActivity.class)
+                .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+                .putExtra("id", controlIdToCardId(controlId));
+        startActivity(openIntent);
+
+        closePowerScreenOnAndroid11();
+    }
+
+    @SuppressLint({"MissingPermission", "deprecation"})
+    private void closePowerScreenOnAndroid11() {
+        // Android 12 will auto-close the power screen, but earlier versions won't
+        // Lint complains about this but on Android 11 the permission is not needed
+        // On Android 12, we don't need it, and Google will probably get angry if we ask for it
+        if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.R) {
+            sendBroadcast(new Intent(Intent.ACTION_CLOSE_SYSTEM_DIALOGS));
+        }
+    }
+
+    /**
+     * A no-op subscription.
+     * <p>
+     * Flow.Subscriptions are made to last during time and receive periodic updates.
+     * Our app does not require sending periodic updates of loyalty cards, so we are just ignoring anything in the subscription
+     * Also, our db is quick enough to respond that the Publisher is immediately sending and completing data.
+     * This facility is overkill, but if we don't call onSubscribe the service won't work
+     */
+    private static class NoOpSubscription implements Flow.Subscription {
+        @Override
+        public void request(long l) {
+        }
+
+        @Override
+        public void cancel() {
+        }
+    }
+}

app/src/main/java/protect/card_locker/CatimaAppCompatActivity.java

@@ -1,20 +1,15 @@
 package protect.card_locker;
 
 import android.content.Context;
-import android.content.SharedPreferences;
-import android.content.res.Resources;
-import android.util.TypedValue;
-
-import java.util.HashMap;
+import android.graphics.Color;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
 
+import androidx.annotation.Nullable;
 import androidx.appcompat.app.AppCompatActivity;
-import androidx.preference.PreferenceManager;
 
 public class CatimaAppCompatActivity extends AppCompatActivity {
-
-    SharedPreferences pref;
-    HashMap<String, Integer> supportedThemes;
-
     @Override
     protected void attachBaseContext(Context base) {
         // Apply chosen language
@@ -22,32 +17,28 @@ public class CatimaAppCompatActivity extends AppCompatActivity {
     }
 
     @Override
-    public Resources.Theme getTheme() {
-        if (supportedThemes == null) {
-            supportedThemes = new HashMap<>();
-            supportedThemes.put(getString(R.string.settings_key_blue_theme), R.style.AppTheme_blue);
-            supportedThemes.put(getString(R.string.settings_key_brown_theme), R.style.AppTheme_brown);
-            supportedThemes.put(getString(R.string.settings_key_green_theme), R.style.AppTheme_green);
-            supportedThemes.put(getString(R.string.settings_key_grey_theme), R.style.AppTheme_grey);
-            supportedThemes.put(getString(R.string.settings_key_magenta_theme), R.style.AppTheme_magenta);
-            supportedThemes.put(getString(R.string.settings_key_pink_theme), R.style.AppTheme_pink);
-            supportedThemes.put(getString(R.string.settings_key_sky_blue_theme), R.style.AppTheme_sky_blue);
-            supportedThemes.put(getString(R.string.settings_key_violet_theme), R.style.AppTheme_violet);
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        // XXX splash screen activity has to do this after installing splash screen before view inflate
+        if (!this.getClass().getSimpleName().equals(MainActivity.class.getSimpleName())) {
+            Utils.patchColors(this);
         }
-
-        Resources.Theme theme = super.getTheme();
-        pref = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
-        String themeName = pref.getString(getString(R.string.setting_key_theme_color), getString(R.string.settings_key_catima_theme));
-
-        theme.applyStyle(Utils.mapGetOrDefault(supportedThemes, themeName, R.style.AppTheme_NoActionBar), true);
-
-        return theme;
     }
 
-    public int getThemeColor() {
-        TypedValue typedValue = new TypedValue();
-        Resources.Theme theme = getTheme();
-        theme.resolveAttribute(R.attr.colorPrimary, typedValue, true);
-        return typedValue.data;
+    @Override
+    protected void onPostCreate(@Nullable Bundle savedInstanceState) {
+        super.onPostCreate(savedInstanceState);
+        // material 3 designer does not consider status bar colors
+        // XXX changing this in onCreate causes issues with the splash screen activity, so doing this here
+        boolean darkMode = Utils.isDarkModeEnabled(this);
+        if (Build.VERSION.SDK_INT >= 23) {
+            getWindow().setStatusBarColor(Color.TRANSPARENT);
+            getWindow().getDecorView().setSystemUiVisibility(darkMode ? 0 : View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        } else {
+            // icons are always white back then
+            getWindow().setStatusBarColor(darkMode ? Color.TRANSPARENT : Color.argb(127, 0, 0, 0));
+        }
+        // XXX android 9 and below has a nasty rendering bug if the theme was patched earlier
+        Utils.postPatchColors(this);
     }
 }

app/src/main/java/protect/card_locker/CatimaBarcode.java

@@ -8,33 +8,35 @@ import java.util.List;
 
 public class CatimaBarcode {
     public static final List<BarcodeFormat> barcodeFormats = Collections.unmodifiableList(Arrays.asList(
-        BarcodeFormat.AZTEC,
-        BarcodeFormat.CODE_39,
-        BarcodeFormat.CODE_128,
-        BarcodeFormat.CODABAR,
-        BarcodeFormat.DATA_MATRIX,
-        BarcodeFormat.EAN_8,
-        BarcodeFormat.EAN_13,
-        BarcodeFormat.ITF,
-        BarcodeFormat.PDF_417,
-        BarcodeFormat.QR_CODE,
-        BarcodeFormat.UPC_A,
-        BarcodeFormat.UPC_E
+            BarcodeFormat.AZTEC,
+            BarcodeFormat.CODE_39,
+            BarcodeFormat.CODE_93,
+            BarcodeFormat.CODE_128,
+            BarcodeFormat.CODABAR,
+            BarcodeFormat.DATA_MATRIX,
+            BarcodeFormat.EAN_8,
+            BarcodeFormat.EAN_13,
+            BarcodeFormat.ITF,
+            BarcodeFormat.PDF_417,
+            BarcodeFormat.QR_CODE,
+            BarcodeFormat.UPC_A,
+            BarcodeFormat.UPC_E
     ));
 
     public static final List<String> barcodePrettyNames = Collections.unmodifiableList(Arrays.asList(
-        "Aztec",
-        "Code 39",
-        "Code 128",
-        "Codabar",
-        "Data Matrix",
-        "EAN 8",
-        "EAN 13",
-        "ITF",
-        "PDF 417",
-        "QR Code",
-        "UPC A",
-        "UPC E"
+            "Aztec",
+            "Code 39",
+            "Code 93",
+            "Code 128",
+            "Codabar",
+            "Data Matrix",
+            "EAN 8",
+            "EAN 13",
+            "ITF",
+            "PDF 417",
+            "QR Code",
+            "UPC A",
+            "UPC E"
     ));
 
     private final BarcodeFormat mBarcodeFormat;
@@ -63,6 +65,13 @@ public class CatimaBarcode {
         return barcodeFormats.contains(mBarcodeFormat);
     }
 
+    public boolean isSquare() {
+        return mBarcodeFormat == BarcodeFormat.AZTEC
+                || mBarcodeFormat == BarcodeFormat.DATA_MATRIX
+                || mBarcodeFormat == BarcodeFormat.MAXICODE
+                || mBarcodeFormat == BarcodeFormat.QR_CODE;
+    }
+
     public BarcodeFormat format() {
         return mBarcodeFormat;
     }

app/src/main/java/protect/card_locker/CatimaBarcodeWithValue.java

@@ -0,0 +1,19 @@
+package protect.card_locker;
+
+public class CatimaBarcodeWithValue {
+    private final CatimaBarcode mCatimaBarcode;
+    private final String mValue;
+
+    public CatimaBarcodeWithValue(CatimaBarcode catimaBarcode, String value) {
+        mCatimaBarcode = catimaBarcode;
+        mValue = value;
+    }
+
+    public CatimaBarcode catimaBarcode() {
+        return mCatimaBarcode;
+    }
+
+    public String value() {
+        return mValue;
+    }
+}

app/src/main/java/protect/card_locker/CatimaCaptureManager.java

@@ -1,24 +1,25 @@
 package protect.card_locker;
 
 import android.app.Activity;
+import android.content.Context;
 import android.widget.Toast;
 
 import com.journeyapps.barcodescanner.CaptureManager;
 import com.journeyapps.barcodescanner.DecoratedBarcodeView;
 
 public class CatimaCaptureManager extends CaptureManager {
-    private Activity activity;
+    private final Context mContext;
 
     public CatimaCaptureManager(Activity activity, DecoratedBarcodeView barcodeView) {
         super(activity, barcodeView);
 
-        this.activity = activity;
+        mContext = activity.getApplicationContext();
     }
 
     @Override
     protected void displayFrameworkBugMessageAndExit(String message) {
         // We don't want to exit, as we also have a enter from card image and add manually button here
         // So we show a toast instead
-        Toast.makeText(activity, message, Toast.LENGTH_LONG).show();
+        Toast.makeText(mContext, message, Toast.LENGTH_LONG).show();
     }
 }

app/src/main/java/protect/card_locker/DBHelper.java

@@ -7,6 +7,8 @@ import android.database.DatabaseUtils;
 import android.database.sqlite.SQLiteDatabase;
 import android.database.sqlite.SQLiteException;
 import android.database.sqlite.SQLiteOpenHelper;
+import android.text.TextUtils;
+import android.util.Log;
 
 import java.io.FileNotFoundException;
 import java.math.BigDecimal;
@@ -16,21 +18,18 @@ import java.util.Currency;
 import java.util.Date;
 import java.util.List;
 
-public class DBHelper extends SQLiteOpenHelper
-{
+public class DBHelper extends SQLiteOpenHelper {
     public static final String DATABASE_NAME = "Catima.db";
     public static final int ORIGINAL_DATABASE_VERSION = 1;
-    public static final int DATABASE_VERSION = 12;
+    public static final int DATABASE_VERSION = 14;
 
-    public static class LoyaltyCardDbGroups
-    {
+    public static class LoyaltyCardDbGroups {
         public static final String TABLE = "groups";
         public static final String ID = "_id";
         public static final String ORDER = "orderId";
     }
 
-    public static class LoyaltyCardDbIds
-    {
+    public static class LoyaltyCardDbIds {
         public static final String TABLE = "cards";
         public static final String ID = "_id";
         public static final String STORE = "store";
@@ -45,17 +44,16 @@ public class DBHelper extends SQLiteOpenHelper
         public static final String BARCODE_TYPE = "barcodetype";
         public static final String STAR_STATUS = "starstatus";
         public static final String LAST_USED = "lastused";
+        public static final String ZOOM_LEVEL = "zoomlevel";
     }
 
-    public static class LoyaltyCardDbIdsGroups
-    {
+    public static class LoyaltyCardDbIdsGroups {
         public static final String TABLE = "cardsGroups";
         public static final String cardID = "cardId";
         public static final String groupID = "groupId";
     }
 
-    public static class LoyaltyCardDbFTS
-    {
+    public static class LoyaltyCardDbFTS {
         public static final String TABLE = "fts";
         public static final String ID = "rowid"; // This should NEVER be changed
         public static final String STORE = "store";
@@ -73,18 +71,12 @@ public class DBHelper extends SQLiteOpenHelper
         Descending
     }
 
-    private Context mContext;
-
-    public DBHelper(Context context)
-    {
+    public DBHelper(Context context) {
         super(context, DATABASE_NAME, null, DATABASE_VERSION);
-
-        mContext = context;
     }
 
     @Override
-    public void onCreate(SQLiteDatabase db)
-    {
+    public void onCreate(SQLiteDatabase db) {
         // create table for card groups
         db.execSQL("CREATE TABLE " + LoyaltyCardDbGroups.TABLE + "(" +
                 LoyaltyCardDbGroups.ID + " TEXT primary key not null," +
@@ -104,13 +96,14 @@ public class DBHelper extends SQLiteOpenHelper
                 LoyaltyCardDbIds.BARCODE_ID + " TEXT," +
                 LoyaltyCardDbIds.BARCODE_TYPE + " TEXT," +
                 LoyaltyCardDbIds.STAR_STATUS + " INTEGER DEFAULT '0'," +
-                LoyaltyCardDbIds.LAST_USED + " INTEGER DEFAULT '0')");
+                LoyaltyCardDbIds.LAST_USED + " INTEGER DEFAULT '0', " +
+                LoyaltyCardDbIds.ZOOM_LEVEL + " INTEGER DEFAULT '100' )");
 
         // create associative table for cards in groups
         db.execSQL("CREATE TABLE " + LoyaltyCardDbIdsGroups.TABLE + "(" +
                 LoyaltyCardDbIdsGroups.cardID + " INTEGER," +
                 LoyaltyCardDbIdsGroups.groupID + " TEXT," +
-                "primary key (" + LoyaltyCardDbIdsGroups.cardID + "," + LoyaltyCardDbIdsGroups.groupID +"))");
+                "primary key (" + LoyaltyCardDbIdsGroups.cardID + "," + LoyaltyCardDbIdsGroups.groupID + "))");
 
         // create FTS search table
         db.execSQL("CREATE VIRTUAL TABLE " + LoyaltyCardDbFTS.TABLE + " USING fts4(" +
@@ -119,67 +112,57 @@ public class DBHelper extends SQLiteOpenHelper
     }
 
     @Override
-    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion)
-    {
-        if(oldVersion < 2 && newVersion >= 2)
-        {
+    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+        if (oldVersion < 2 && newVersion >= 2) {
             db.execSQL("ALTER TABLE " + LoyaltyCardDbIds.TABLE
                     + " ADD COLUMN " + LoyaltyCardDbIds.NOTE + " TEXT not null default ''");
         }
 
-        if(oldVersion < 3 && newVersion >= 3)
-        {
+        if (oldVersion < 3 && newVersion >= 3) {
             db.execSQL("ALTER TABLE " + LoyaltyCardDbIds.TABLE
                     + " ADD COLUMN " + LoyaltyCardDbIds.HEADER_COLOR + " INTEGER");
             db.execSQL("ALTER TABLE " + LoyaltyCardDbIds.TABLE
                     + " ADD COLUMN " + LoyaltyCardDbIds.HEADER_TEXT_COLOR + " INTEGER");
         }
 
-        if(oldVersion < 4 && newVersion >= 4)
-        {
+        if (oldVersion < 4 && newVersion >= 4) {
             db.execSQL("ALTER TABLE " + LoyaltyCardDbIds.TABLE
                     + " ADD COLUMN " + LoyaltyCardDbIds.STAR_STATUS + " INTEGER DEFAULT '0'");
         }
 
-        if(oldVersion < 5 && newVersion >= 5)
-        {
+        if (oldVersion < 5 && newVersion >= 5) {
             db.execSQL("CREATE TABLE " + LoyaltyCardDbGroups.TABLE + "(" +
                     LoyaltyCardDbGroups.ID + " TEXT primary key not null)");
 
             db.execSQL("CREATE TABLE " + LoyaltyCardDbIdsGroups.TABLE + "(" +
                     LoyaltyCardDbIdsGroups.cardID + " INTEGER," +
                     LoyaltyCardDbIdsGroups.groupID + " TEXT," +
-                    "primary key (" + LoyaltyCardDbIdsGroups.cardID + "," + LoyaltyCardDbIdsGroups.groupID +"))");
+                    "primary key (" + LoyaltyCardDbIdsGroups.cardID + "," + LoyaltyCardDbIdsGroups.groupID + "))");
         }
 
-        if(oldVersion < 6 && newVersion >= 6)
-        {
+        if (oldVersion < 6 && newVersion >= 6) {
             db.execSQL("ALTER TABLE " + LoyaltyCardDbGroups.TABLE
                     + " ADD COLUMN " + LoyaltyCardDbGroups.ORDER + " INTEGER DEFAULT '0'");
         }
 
-        if(oldVersion < 7 && newVersion >= 7)
-        {
+        if (oldVersion < 7 && newVersion >= 7) {
             db.execSQL("ALTER TABLE " + LoyaltyCardDbIds.TABLE
                     + " ADD COLUMN " + LoyaltyCardDbIds.EXPIRY + " INTEGER");
         }
 
-        if(oldVersion < 8 && newVersion >= 8)
-        {
+        if (oldVersion < 8 && newVersion >= 8) {
             db.execSQL("ALTER TABLE " + LoyaltyCardDbIds.TABLE
                     + " ADD COLUMN " + LoyaltyCardDbIds.BALANCE + " TEXT not null DEFAULT '0'");
             db.execSQL("ALTER TABLE " + LoyaltyCardDbIds.TABLE
                     + " ADD COLUMN " + LoyaltyCardDbIds.BALANCE_TYPE + " TEXT");
         }
 
-        if(oldVersion < 9 && newVersion >= 9)
-        {
+        if (oldVersion < 9 && newVersion >= 9) {
             db.execSQL("ALTER TABLE " + LoyaltyCardDbIds.TABLE
                     + " ADD COLUMN " + LoyaltyCardDbIds.BARCODE_ID + " TEXT");
         }
 
-        if(oldVersion < 10 && newVersion >= 10)
-        {
+        if (oldVersion < 10 && newVersion >= 10) {
             // SQLite doesn't support modify column
             // So we need to create a temp column to make barcode type nullable
             // Let's drop header text colour too while we're at it
@@ -272,14 +255,12 @@ public class DBHelper extends SQLiteOpenHelper
             db.endTransaction();
         }
 
-        if(oldVersion < 11 && newVersion >= 11)
-        {
+        if (oldVersion < 11 && newVersion >= 11) {
             db.execSQL("ALTER TABLE " + LoyaltyCardDbIds.TABLE
                     + " ADD COLUMN " + LoyaltyCardDbIds.LAST_USED + " INTEGER DEFAULT '0'");
         }
 
-        if(oldVersion < 12 && newVersion >= 12)
-        {
+        if (oldVersion < 12 && newVersion >= 12) {
             db.execSQL("CREATE VIRTUAL TABLE " + LoyaltyCardDbFTS.TABLE + " USING fts4(" +
                     LoyaltyCardDbFTS.STORE + ", " + LoyaltyCardDbFTS.NOTE + ", " +
                     "tokenize=unicode61);");
@@ -289,13 +270,41 @@ public class DBHelper extends SQLiteOpenHelper
             cursor.moveToFirst();
 
             while (cursor.moveToNext()) {
-                LoyaltyCard loyaltyCard = LoyaltyCard.toLoyaltyCard(cursor);
-                insertFTS(db, loyaltyCard.id, loyaltyCard.store, loyaltyCard.note);
+                int id = cursor.getInt(cursor.getColumnIndexOrThrow(DBHelper.LoyaltyCardDbIds.ID));
+                String store = cursor.getString(cursor.getColumnIndexOrThrow(DBHelper.LoyaltyCardDbIds.STORE));
+                String note = cursor.getString(cursor.getColumnIndexOrThrow(DBHelper.LoyaltyCardDbIds.NOTE));
+                insertFTS(db, id, store, note);
             }
         }
+
+        if (oldVersion < 13 && newVersion >= 13) {
+            db.execSQL("DELETE FROM " + LoyaltyCardDbFTS.TABLE + ";");
+
+            Cursor cursor = db.rawQuery("SELECT * FROM " + LoyaltyCardDbIds.TABLE + ";", null, null);
+
+            if (cursor.moveToFirst()) {
+                int id = cursor.getInt(cursor.getColumnIndexOrThrow(DBHelper.LoyaltyCardDbIds.ID));
+                String store = cursor.getString(cursor.getColumnIndexOrThrow(DBHelper.LoyaltyCardDbIds.STORE));
+                String note = cursor.getString(cursor.getColumnIndexOrThrow(DBHelper.LoyaltyCardDbIds.NOTE));
+                insertFTS(db, id, store, note);
+
+                while (cursor.moveToNext()) {
+                    id = cursor.getInt(cursor.getColumnIndexOrThrow(DBHelper.LoyaltyCardDbIds.ID));
+                    store = cursor.getString(cursor.getColumnIndexOrThrow(DBHelper.LoyaltyCardDbIds.STORE));
+                    note = cursor.getString(cursor.getColumnIndexOrThrow(DBHelper.LoyaltyCardDbIds.NOTE));
+                    insertFTS(db, id, store, note);
+                }
+            }
+            cursor.close();
+        }
+
+        if (oldVersion < 14 && newVersion >= 14) {
+            db.execSQL("ALTER TABLE " + LoyaltyCardDbIds.TABLE
+                    + " ADD COLUMN " + LoyaltyCardDbIds.ZOOM_LEVEL + " INTEGER DEFAULT '100' ");
+        }
     }
 
-    private ContentValues generateFTSContentValues(final int id, final String store, final String note) {
+    private static ContentValues generateFTSContentValues(final int id, final String store, final String note) {
         // FTS on Android is severely limited and can only search for word starting with a certain string
         // So for each word, we grab every single substring
         // This makes it possible to find Décathlon by searching both de and cat, for example
@@ -327,23 +336,21 @@ public class DBHelper extends SQLiteOpenHelper
         return ftsContentValues;
     }
 
-    private void insertFTS(final SQLiteDatabase db, final int id, final String store, final String note) {
+    private static void insertFTS(final SQLiteDatabase db, final int id, final String store, final String note) {
         db.insert(LoyaltyCardDbFTS.TABLE, null, generateFTSContentValues(id, store, note));
     }
 
-    private void updateFTS(final SQLiteDatabase db, final int id, final String store, final String note) {
+    private static void updateFTS(final SQLiteDatabase db, final int id, final String store, final String note) {
         db.update(LoyaltyCardDbFTS.TABLE, generateFTSContentValues(id, store, note),
                 whereAttrs(LoyaltyCardDbFTS.ID), withArgs(id));
     }
 
-    public long insertLoyaltyCard(final String store, final String note, final Date expiry,
-                                  final BigDecimal balance, final Currency balanceType,
-                                  final String cardId, final String barcodeId,
-                                  final CatimaBarcode barcodeType, final Integer headerColor,
-                                  final int starStatus, final Long lastUsed)
-    {
-        SQLiteDatabase db = getWritableDatabase();
-        db.beginTransaction();
+    public static long insertLoyaltyCard(
+            final SQLiteDatabase database, final String store, final String note, final Date expiry,
+            final BigDecimal balance, final Currency balanceType, final String cardId,
+            final String barcodeId, final CatimaBarcode barcodeType, final Integer headerColor,
+            final int starStatus, final Long lastUsed) {
+        database.beginTransaction();
 
         // Card
         ContentValues contentValues = new ContentValues();
@@ -358,58 +365,23 @@ public class DBHelper extends SQLiteOpenHelper
         contentValues.put(LoyaltyCardDbIds.HEADER_COLOR, headerColor);
         contentValues.put(LoyaltyCardDbIds.STAR_STATUS, starStatus);
         contentValues.put(LoyaltyCardDbIds.LAST_USED, lastUsed != null ? lastUsed : Utils.getUnixTime());
-        long id = db.insert(LoyaltyCardDbIds.TABLE, null, contentValues);
+        long id = database.insert(LoyaltyCardDbIds.TABLE, null, contentValues);
 
         // FTS
-        insertFTS(db, (int) id, store, note);
+        insertFTS(database, (int) id, store, note);
 
-        db.setTransactionSuccessful();
-        db.endTransaction();
+        database.setTransactionSuccessful();
+        database.endTransaction();
 
         return id;
     }
 
-    public long insertLoyaltyCard(final SQLiteDatabase db, final String store,
-                                  final String note, final Date expiry, final BigDecimal balance,
-                                  final Currency balanceType, final String cardId,
-                                  final String barcodeId, final CatimaBarcode barcodeType,
-                                  final Integer headerColor, final int starStatus,
-                                  final Long lastUsed)
-    {
-        db.beginTransaction();
-
-        // Card
-        ContentValues contentValues = new ContentValues();
-        contentValues.put(LoyaltyCardDbIds.STORE, store);
-        contentValues.put(LoyaltyCardDbIds.NOTE, note);
-        contentValues.put(LoyaltyCardDbIds.EXPIRY, expiry != null ? expiry.getTime() : null);
-        contentValues.put(LoyaltyCardDbIds.BALANCE, balance.toString());
-        contentValues.put(LoyaltyCardDbIds.BALANCE_TYPE, balanceType != null ? balanceType.getCurrencyCode() : null);
-        contentValues.put(LoyaltyCardDbIds.CARD_ID, cardId);
-        contentValues.put(LoyaltyCardDbIds.BARCODE_ID, barcodeId);
-        contentValues.put(LoyaltyCardDbIds.BARCODE_TYPE, barcodeType != null ? barcodeType.name() : null);
-        contentValues.put(LoyaltyCardDbIds.HEADER_COLOR, headerColor);
-        contentValues.put(LoyaltyCardDbIds.STAR_STATUS, starStatus);
-        contentValues.put(LoyaltyCardDbIds.LAST_USED, lastUsed != null ? lastUsed : Utils.getUnixTime());
-        long id = db.insert(LoyaltyCardDbIds.TABLE, null, contentValues);
-
-        // FTS
-        insertFTS(db, (int) id, store, note);
-
-        db.setTransactionSuccessful();
-        db.endTransaction();
-
-        return id;
-    }
-
-    public long insertLoyaltyCard(final SQLiteDatabase db, final int id, final String store,
-                                  final String note, final Date expiry, final BigDecimal balance,
-                                  final Currency balanceType, final String cardId,
-                                  final String barcodeId, final CatimaBarcode barcodeType,
-                                  final Integer headerColor, final int starStatus,
-                                  final Long lastUsed)
-    {
-        db.beginTransaction();
+    public static long insertLoyaltyCard(
+            final SQLiteDatabase database, final int id, final String store, final String note,
+            final Date expiry, final BigDecimal balance, final Currency balanceType,
+            final String cardId, final String barcodeId, final CatimaBarcode barcodeType,
+            final Integer headerColor, final int starStatus, final Long lastUsed) {
+        database.beginTransaction();
 
         // Card
         ContentValues contentValues = new ContentValues();
@@ -425,25 +397,23 @@ public class DBHelper extends SQLiteOpenHelper
         contentValues.put(LoyaltyCardDbIds.HEADER_COLOR, headerColor);
         contentValues.put(LoyaltyCardDbIds.STAR_STATUS, starStatus);
         contentValues.put(LoyaltyCardDbIds.LAST_USED, lastUsed != null ? lastUsed : Utils.getUnixTime());
-        db.insert(LoyaltyCardDbIds.TABLE, null, contentValues);
+        database.insert(LoyaltyCardDbIds.TABLE, null, contentValues);
 
         // FTS
-        insertFTS(db, id, store, note);
+        insertFTS(database, id, store, note);
 
-        db.setTransactionSuccessful();
-        db.endTransaction();
+        database.setTransactionSuccessful();
+        database.endTransaction();
 
         return id;
     }
 
-    public boolean updateLoyaltyCard(final int id, final String store, final String note,
-                                     final Date expiry, final BigDecimal balance,
-                                     final Currency balanceType, final String cardId,
-                                     final String barcodeId, final CatimaBarcode barcodeType,
-                                     final Integer headerColor)
-    {
-        SQLiteDatabase db = getWritableDatabase();
-        db.beginTransaction();
+    public static boolean updateLoyaltyCard(
+            SQLiteDatabase database, final int id, final String store, final String note,
+            final Date expiry, final BigDecimal balance, final Currency balanceType,
+            final String cardId, final String barcodeId, final CatimaBarcode barcodeType,
+            final Integer headerColor) {
+        database.beginTransaction();
 
         // Card
         ContentValues contentValues = new ContentValues();
@@ -456,48 +426,53 @@ public class DBHelper extends SQLiteOpenHelper
         contentValues.put(LoyaltyCardDbIds.BARCODE_ID, barcodeId);
         contentValues.put(LoyaltyCardDbIds.BARCODE_TYPE, barcodeType != null ? barcodeType.name() : null);
         contentValues.put(LoyaltyCardDbIds.HEADER_COLOR, headerColor);
-        int rowsUpdated = db.update(LoyaltyCardDbIds.TABLE, contentValues,
+        int rowsUpdated = database.update(LoyaltyCardDbIds.TABLE, contentValues,
                 whereAttrs(LoyaltyCardDbIds.ID), withArgs(id));
 
         // FTS
-        updateFTS(db, id, store, note);
+        updateFTS(database, id, store, note);
 
-        db.setTransactionSuccessful();
-        db.endTransaction();
+        database.setTransactionSuccessful();
+        database.endTransaction();
 
         return (rowsUpdated == 1);
     }
 
-    public boolean updateLoyaltyCardStarStatus(final int id, final int starStatus)
-    {
-        SQLiteDatabase db = getWritableDatabase();
+    public static boolean updateLoyaltyCardStarStatus(SQLiteDatabase database, final int id, final int starStatus) {
         ContentValues contentValues = new ContentValues();
-        contentValues.put(LoyaltyCardDbIds.STAR_STATUS,starStatus);
-        int rowsUpdated = db.update(LoyaltyCardDbIds.TABLE, contentValues,
+        contentValues.put(LoyaltyCardDbIds.STAR_STATUS, starStatus);
+        int rowsUpdated = database.update(LoyaltyCardDbIds.TABLE, contentValues,
                 whereAttrs(LoyaltyCardDbIds.ID),
                 withArgs(id));
         return (rowsUpdated == 1);
     }
 
-    public boolean updateLoyaltyCardLastUsed(final int id) {
-        SQLiteDatabase db = getWritableDatabase();
+    public static boolean updateLoyaltyCardLastUsed(SQLiteDatabase database, final int id) {
         ContentValues contentValues = new ContentValues();
         contentValues.put(LoyaltyCardDbIds.LAST_USED, System.currentTimeMillis() / 1000);
-        int rowsUpdated = db.update(LoyaltyCardDbIds.TABLE, contentValues,
+        int rowsUpdated = database.update(LoyaltyCardDbIds.TABLE, contentValues,
                 whereAttrs(LoyaltyCardDbIds.ID),
                 withArgs(id));
         return (rowsUpdated == 1);
     }
 
-    public LoyaltyCard getLoyaltyCard(final int id)
-    {
-        SQLiteDatabase db = getReadableDatabase();
-        Cursor data = db.query(LoyaltyCardDbIds.TABLE, null, whereAttrs(LoyaltyCardDbIds.ID), withArgs(id), null, null, null);
+    public static boolean updateLoyaltyCardZoomLevel(SQLiteDatabase database, int loyaltyCardId, int zoomLevel) {
+        ContentValues contentValues = new ContentValues();
+        contentValues.put(LoyaltyCardDbIds.ZOOM_LEVEL, zoomLevel);
+        Log.d("updateLoyaltyCardZLevel", "Card Id = " + loyaltyCardId + " Zoom level= " + zoomLevel);
+        int rowsUpdated = database.update(LoyaltyCardDbIds.TABLE, contentValues,
+                whereAttrs(LoyaltyCardDbIds.ID),
+                withArgs(loyaltyCardId));
+        Log.d("updateLoyaltyCardZLevel", "Rows changed = " + rowsUpdated);
+        return (rowsUpdated == 1);
+    }
+
+    public static LoyaltyCard getLoyaltyCard(SQLiteDatabase database, final int id) {
+        Cursor data = database.query(LoyaltyCardDbIds.TABLE, null, whereAttrs(LoyaltyCardDbIds.ID), withArgs(id), null, null, null);
 
         LoyaltyCard card = null;
 
-        if(data.getCount() == 1)
-        {
+        if (data.getCount() == 1) {
             data.moveToFirst();
             card = LoyaltyCard.toLoyaltyCard(data);
         }
@@ -507,10 +482,8 @@ public class DBHelper extends SQLiteOpenHelper
         return card;
     }
 
-    public List<Group> getLoyaltyCardGroups(final int id)
-    {
-        SQLiteDatabase db = getReadableDatabase();
-        Cursor data = db.rawQuery("select * from " + LoyaltyCardDbGroups.TABLE + " g " +
+    public static List<Group> getLoyaltyCardGroups(SQLiteDatabase database, final int id) {
+        Cursor data = database.rawQuery("select * from " + LoyaltyCardDbGroups.TABLE + " g " +
                 " LEFT JOIN " + LoyaltyCardDbIdsGroups.TABLE + " ig ON ig." + LoyaltyCardDbIdsGroups.groupID + " = g." + LoyaltyCardDbGroups.ID +
                 " where " + LoyaltyCardDbIdsGroups.cardID + "=?" +
                 " ORDER BY " + LoyaltyCardDbIdsGroups.groupID, withArgs(id));
@@ -533,12 +506,9 @@ public class DBHelper extends SQLiteOpenHelper
         return groups;
     }
 
-    public void setLoyaltyCardGroups(final int id, List<Group> groups)
-    {
-        SQLiteDatabase db = getWritableDatabase();
-
+    public static void setLoyaltyCardGroups(SQLiteDatabase database, final int id, List<Group> groups) {
         // First delete lookup table entries associated with this card
-        db.delete(LoyaltyCardDbIdsGroups.TABLE,
+        database.delete(LoyaltyCardDbIdsGroups.TABLE,
                 whereAttrs(LoyaltyCardDbIdsGroups.cardID),
                 withArgs(id));
 
@@ -547,59 +517,41 @@ public class DBHelper extends SQLiteOpenHelper
             ContentValues contentValues = new ContentValues();
             contentValues.put(LoyaltyCardDbIdsGroups.cardID, id);
             contentValues.put(LoyaltyCardDbIdsGroups.groupID, group._id);
-            db.insert(LoyaltyCardDbIdsGroups.TABLE, null, contentValues);
+            database.insert(LoyaltyCardDbIdsGroups.TABLE, null, contentValues);
         }
     }
 
-    public void setLoyaltyCardGroups(final SQLiteDatabase db, final int id, List<Group> groups)
-    {
-        // First delete lookup table entries associated with this card
-        db.delete(LoyaltyCardDbIdsGroups.TABLE,
-                whereAttrs(LoyaltyCardDbIdsGroups.cardID),
-                withArgs(id));
-
-        // Then create entries for selected values
-        for (Group group : groups) {
-            ContentValues contentValues = new ContentValues();
-            contentValues.put(LoyaltyCardDbIdsGroups.cardID, id);
-            contentValues.put(LoyaltyCardDbIdsGroups.groupID, group._id);
-            db.insert(LoyaltyCardDbIdsGroups.TABLE, null, contentValues);
-        }
-    }
-
-    public boolean deleteLoyaltyCard(final int id)
-    {
-        SQLiteDatabase db = getWritableDatabase();
+    public static boolean deleteLoyaltyCard(SQLiteDatabase database, Context context, final int id) {
         // Delete card
-        int rowsDeleted = db.delete(LoyaltyCardDbIds.TABLE,
+        int rowsDeleted = database.delete(LoyaltyCardDbIds.TABLE,
                 whereAttrs(LoyaltyCardDbIds.ID),
                 withArgs(id));
 
         // And delete lookup table entries associated with this card
-        db.delete(LoyaltyCardDbIdsGroups.TABLE,
+        database.delete(LoyaltyCardDbIdsGroups.TABLE,
                 whereAttrs(LoyaltyCardDbIdsGroups.cardID),
                 withArgs(id));
 
         // Delete FTS table entries
-        db.delete(LoyaltyCardDbFTS.TABLE,
+        database.delete(LoyaltyCardDbFTS.TABLE,
                 whereAttrs(LoyaltyCardDbFTS.ID),
                 withArgs(id));
 
         // Also wipe card images associated with this card
-        try {
-            Utils.saveCardImage(mContext, null, id, true);
-            Utils.saveCardImage(mContext, null, id, false);
-        } catch (FileNotFoundException e) {
-            e.printStackTrace();
+        for (ImageLocationType imageLocationType : ImageLocationType.values()) {
+            try {
+                Utils.saveCardImage(context, null, id, imageLocationType);
+            } catch (FileNotFoundException e) {
+                e.printStackTrace();
+            }
         }
 
         return (rowsDeleted == 1);
     }
 
-    public Cursor getLoyaltyCardCursor()
-    {
+    public static Cursor getLoyaltyCardCursor(SQLiteDatabase database) {
         // An empty string will match everything
-        return getLoyaltyCardCursor("");
+        return getLoyaltyCardCursor(database, "");
     }
 
     /**
@@ -608,9 +560,8 @@ public class DBHelper extends SQLiteOpenHelper
      * @param filter
      * @return Cursor
      */
-    public Cursor getLoyaltyCardCursor(final String filter)
-    {
-        return getLoyaltyCardCursor(filter, null);
+    public static Cursor getLoyaltyCardCursor(SQLiteDatabase database, final String filter) {
+        return getLoyaltyCardCursor(database, filter, null);
     }
 
     /**
@@ -620,9 +571,8 @@ public class DBHelper extends SQLiteOpenHelper
      * @param group
      * @return Cursor
      */
-    public Cursor getLoyaltyCardCursor(final String filter, Group group)
-    {
-        return getLoyaltyCardCursor(filter, group, LoyaltyCardOrder.Alpha, LoyaltyCardOrderDirection.Ascending);
+    public static Cursor getLoyaltyCardCursor(SQLiteDatabase database, final String filter, Group group) {
+        return getLoyaltyCardCursor(database, filter, group, LoyaltyCardOrder.Alpha, LoyaltyCardOrderDirection.Ascending);
     }
 
     /**
@@ -633,14 +583,12 @@ public class DBHelper extends SQLiteOpenHelper
      * @param order
      * @return Cursor
      */
-    public Cursor getLoyaltyCardCursor(String filter, Group group, LoyaltyCardOrder order, LoyaltyCardOrderDirection direction) {
+    public static Cursor getLoyaltyCardCursor(SQLiteDatabase database, String filter, Group group, LoyaltyCardOrder order, LoyaltyCardOrderDirection direction) {
         StringBuilder groupFilter = new StringBuilder();
         String limitString = "";
 
-        SQLiteDatabase db = getReadableDatabase();
-
         if (group != null) {
-            List<Integer> allowedIds = getGroupCardIds(group._id);
+            List<Integer> allowedIds = getGroupCardIds(database, group._id);
 
             // Empty group
             if (!allowedIds.isEmpty()) {
@@ -660,39 +608,25 @@ public class DBHelper extends SQLiteOpenHelper
 
         String orderField = getFieldForOrder(order);
 
-        return db.rawQuery("SELECT " + LoyaltyCardDbIds.TABLE + ".* FROM " + LoyaltyCardDbIds.TABLE +
+        return database.rawQuery("SELECT " + LoyaltyCardDbIds.TABLE + ".* FROM " + LoyaltyCardDbIds.TABLE +
                 " JOIN " + LoyaltyCardDbFTS.TABLE +
                 " ON " + LoyaltyCardDbFTS.TABLE + "." + LoyaltyCardDbFTS.ID + " = " + LoyaltyCardDbIds.TABLE + "." + LoyaltyCardDbIds.ID +
-                (filter.isEmpty() ? " " : " AND " + LoyaltyCardDbFTS.TABLE + " MATCH ? ") +
+                (filter.trim().isEmpty() ? " " : " AND " + LoyaltyCardDbFTS.TABLE + " MATCH ? ") +
                 groupFilter.toString() +
                 " ORDER BY " + LoyaltyCardDbIds.TABLE + "." + LoyaltyCardDbIds.STAR_STATUS + " DESC, " +
                 " (CASE WHEN " + LoyaltyCardDbIds.TABLE + "." + orderField + " IS NULL THEN 1 ELSE 0 END), " +
                 LoyaltyCardDbIds.TABLE + "." + orderField + " COLLATE NOCASE " + getDbDirection(order, direction) + ", " +
                 LoyaltyCardDbIds.TABLE + "." + LoyaltyCardDbIds.STORE + " COLLATE NOCASE ASC " +
-                limitString, filter.isEmpty() ? null : new String[] { filter + '*' }, null);
-    }
-
-    public int getLoyaltyCardCount()
-    {
-        SQLiteDatabase db = getReadableDatabase();
-        return (int) DatabaseUtils.queryNumEntries(db, LoyaltyCardDbIds.TABLE);
+                limitString, filter.trim().isEmpty() ? null : new String[]{TextUtils.join("* ", filter.split(" ")) + '*'}, null);
     }
 
     /**
-     * Returns the amount of loyalty cards with the filter text in either the store or note.
+     * Returns the amount of loyalty cards.
      *
-     * @param filter
      * @return Integer
      */
-    public int getLoyaltyCardCount(String filter)
-    {
-        if (filter.isEmpty()) {
-            return getLoyaltyCardCount();
-        }
-
-        SQLiteDatabase db = getReadableDatabase();
-        return (int) DatabaseUtils.queryNumEntries(db, LoyaltyCardDbFTS.TABLE,
-                LoyaltyCardDbFTS.TABLE + " MATCH ? ", withArgs(filter + '*'));
+    public static int getLoyaltyCardCount(SQLiteDatabase database) {
+        return (int) DatabaseUtils.queryNumEntries(database, LoyaltyCardDbIds.TABLE);
     }
 
     /**
@@ -700,42 +634,38 @@ public class DBHelper extends SQLiteOpenHelper
      *
      * @return Cursor
      */
-    public Cursor getGroupCursor()
-    {
-        SQLiteDatabase db = getReadableDatabase();
-
-        return db.rawQuery("select * from " + LoyaltyCardDbGroups.TABLE +
+    public static Cursor getGroupCursor(SQLiteDatabase database) {
+        return database.rawQuery("select * from " + LoyaltyCardDbGroups.TABLE +
                 " ORDER BY " + LoyaltyCardDbGroups.ORDER + " ASC," + LoyaltyCardDbGroups.ID + " COLLATE NOCASE ASC", null, null);
     }
 
-    public List<Group> getGroups() {
-        try(Cursor data = getGroupCursor()) {
-            List<Group> groups = new ArrayList<>();
+    public static List<Group> getGroups(SQLiteDatabase database) {
+        Cursor data = getGroupCursor(database);
 
-            if (!data.moveToFirst()) {
-                return groups;
-            }
-
-            groups.add(Group.toGroup(data));
-            while (data.moveToNext()) {
-                groups.add(Group.toGroup(data));
-            }
+        List<Group> groups = new ArrayList<>();
 
+        if (!data.moveToFirst()) {
+            data.close();
             return groups;
         }
+
+        groups.add(Group.toGroup(data));
+        while (data.moveToNext()) {
+            groups.add(Group.toGroup(data));
+        }
+
+        data.close();
+        return groups;
     }
 
-    public void reorderGroups(final List<Group> groups)
-    {
+    public static void reorderGroups(SQLiteDatabase database, final List<Group> groups) {
         Integer order = 0;
-        SQLiteDatabase db = getWritableDatabase();
 
-        for (Group group : groups)
-        {
+        for (Group group : groups) {
             ContentValues contentValues = new ContentValues();
             contentValues.put(LoyaltyCardDbGroups.ORDER, order);
 
-            db.update(LoyaltyCardDbGroups.TABLE, contentValues,
+            database.update(LoyaltyCardDbGroups.TABLE, contentValues,
                     whereAttrs(LoyaltyCardDbGroups.ID),
                     withArgs(group._id));
 
@@ -743,15 +673,12 @@ public class DBHelper extends SQLiteOpenHelper
         }
     }
 
-    public Group getGroup(final String groupName)
-    {
-        SQLiteDatabase db = getReadableDatabase();
-        Cursor data = db.query(LoyaltyCardDbGroups.TABLE, null,
+    public static Group getGroup(SQLiteDatabase database, final String groupName) {
+        Cursor data = database.query(LoyaltyCardDbGroups.TABLE, null,
                 whereAttrs(LoyaltyCardDbGroups.ID), withArgs(groupName), null, null, null);
 
         Group group = null;
-        if(data.getCount() == 1)
-        {
+        if (data.getCount() == 1) {
             data.moveToFirst();
             group = Group.toGroup(data);
         }
@@ -760,16 +687,12 @@ public class DBHelper extends SQLiteOpenHelper
         return group;
     }
 
-    public int getGroupCount()
-    {
-        SQLiteDatabase db = getReadableDatabase();
-        return (int) DatabaseUtils.queryNumEntries(db, LoyaltyCardDbGroups.TABLE);
+    public static int getGroupCount(SQLiteDatabase database) {
+        return (int) DatabaseUtils.queryNumEntries(database, LoyaltyCardDbGroups.TABLE);
     }
 
-    public List<Integer> getGroupCardIds(final String groupName)
-    {
-        SQLiteDatabase db = getReadableDatabase();
-        Cursor data = db.query(LoyaltyCardDbIdsGroups.TABLE, withArgs(LoyaltyCardDbIdsGroups.cardID),
+    public static List<Integer> getGroupCardIds(SQLiteDatabase database, final String groupName) {
+        Cursor data = database.query(LoyaltyCardDbIdsGroups.TABLE, withArgs(LoyaltyCardDbIdsGroups.cardID),
                 whereAttrs(LoyaltyCardDbIdsGroups.groupID), withArgs(groupName), null, null, null);
         List<Integer> cardIds = new ArrayList<>();
 
@@ -788,104 +711,85 @@ public class DBHelper extends SQLiteOpenHelper
         return cardIds;
     }
 
-    public long insertGroup(final String name)
-    {
+    public static long insertGroup(SQLiteDatabase database, final String name) {
         if (name.isEmpty()) return -1;
 
-        SQLiteDatabase db = getWritableDatabase();
         ContentValues contentValues = new ContentValues();
         contentValues.put(LoyaltyCardDbGroups.ID, name);
-        contentValues.put(LoyaltyCardDbGroups.ORDER, getGroupCount());
-        return db.insert(LoyaltyCardDbGroups.TABLE, null, contentValues);
+        contentValues.put(LoyaltyCardDbGroups.ORDER, getGroupCount(database));
+        return database.insert(LoyaltyCardDbGroups.TABLE, null, contentValues);
     }
 
-    public boolean insertGroup(final SQLiteDatabase db, final String name)
-    {
-        ContentValues contentValues = new ContentValues();
-        contentValues.put(LoyaltyCardDbGroups.ID, name);
-        contentValues.put(LoyaltyCardDbGroups.ORDER, getGroupCount());
-        final long newId = db.insert(LoyaltyCardDbGroups.TABLE, null, contentValues);
-        return newId != -1;
-    }
-
-    public boolean updateGroup(final String groupName, final String newName)
-    {
+    public static boolean updateGroup(SQLiteDatabase database, final String groupName, final String newName) {
         if (newName.isEmpty()) return false;
 
         boolean success = false;
 
-        SQLiteDatabase db = getWritableDatabase();
         ContentValues groupContentValues = new ContentValues();
         groupContentValues.put(LoyaltyCardDbGroups.ID, newName);
 
         ContentValues lookupContentValues = new ContentValues();
         lookupContentValues.put(LoyaltyCardDbIdsGroups.groupID, newName);
 
-        db.beginTransaction();
+        database.beginTransaction();
         try {
             // Update group name
-            int groupsChanged = db.update(LoyaltyCardDbGroups.TABLE, groupContentValues,
+            int groupsChanged = database.update(LoyaltyCardDbGroups.TABLE, groupContentValues,
                     whereAttrs(LoyaltyCardDbGroups.ID),
                     withArgs(groupName));
 
             // Also update lookup tables
-            db.update(LoyaltyCardDbIdsGroups.TABLE, lookupContentValues,
+            database.update(LoyaltyCardDbIdsGroups.TABLE, lookupContentValues,
                     whereAttrs(LoyaltyCardDbIdsGroups.groupID),
                     withArgs(groupName));
 
             if (groupsChanged == 1) {
-                db.setTransactionSuccessful();
+                database.setTransactionSuccessful();
                 success = true;
             }
-        } catch (SQLiteException e) {
+        } catch (SQLiteException ignored) {
         } finally {
-            db.endTransaction();
+            database.endTransaction();
         }
 
         return success;
     }
 
-    public boolean deleteGroup(final String groupName)
-    {
+    public static boolean deleteGroup(SQLiteDatabase database, final String groupName) {
         boolean success = false;
 
-        SQLiteDatabase db = getWritableDatabase();
-
-        db.beginTransaction();
+        database.beginTransaction();
         try {
             // Delete group
-            int groupsDeleted = db.delete(LoyaltyCardDbGroups.TABLE,
+            int groupsDeleted = database.delete(LoyaltyCardDbGroups.TABLE,
                     whereAttrs(LoyaltyCardDbGroups.ID),
                     withArgs(groupName));
 
             // And delete lookup table entries associated with this group
-            db.delete(LoyaltyCardDbIdsGroups.TABLE,
+            database.delete(LoyaltyCardDbIdsGroups.TABLE,
                     whereAttrs(LoyaltyCardDbIdsGroups.groupID),
                     withArgs(groupName));
 
             if (groupsDeleted == 1) {
-                db.setTransactionSuccessful();
+                database.setTransactionSuccessful();
                 success = true;
             }
         } finally {
-            db.endTransaction();
+            database.endTransaction();
         }
 
         // Reorder after delete to ensure no bad order IDs
-        reorderGroups(getGroups());
+        reorderGroups(database, getGroups(database));
 
         return success;
     }
 
-    public int getGroupCardCount(final String groupName)
-    {
-        SQLiteDatabase db = getReadableDatabase();
-
-        return (int) DatabaseUtils.queryNumEntries(db, LoyaltyCardDbIdsGroups.TABLE,
+    public static int getGroupCardCount(SQLiteDatabase database, final String groupName) {
+        return (int) DatabaseUtils.queryNumEntries(database, LoyaltyCardDbIdsGroups.TABLE,
                 whereAttrs(LoyaltyCardDbIdsGroups.groupID), withArgs(groupName));
     }
 
-    private String whereAttrs(String... attrs) {
+    static private String whereAttrs(String... attrs) {
         if (attrs.length == 0) {
             return null;
         }
@@ -896,13 +800,13 @@ public class DBHelper extends SQLiteOpenHelper
         return whereClause.toString();
     }
 
-    private String[] withArgs(Object... object) {
+    static private String[] withArgs(Object... object) {
         return Arrays.stream(object)
                 .map(String::valueOf)
                 .toArray(String[]::new);
     }
 
-    private String getFieldForOrder(LoyaltyCardOrder order) {
+    private static String getFieldForOrder(LoyaltyCardOrder order) {
         if (order == LoyaltyCardOrder.Alpha) {
             return LoyaltyCardDbIds.STORE;
         }
@@ -918,7 +822,7 @@ public class DBHelper extends SQLiteOpenHelper
         throw new IllegalArgumentException("Unknown order " + order);
     }
 
-    private String getDbDirection(LoyaltyCardOrder order, LoyaltyCardOrderDirection direction) {
+    private static String getDbDirection(LoyaltyCardOrder order, LoyaltyCardOrderDirection direction) {
         if (order == LoyaltyCardOrder.LastUsed) {
             // We want the default sorting to put the most recently used first
             return direction == LoyaltyCardOrderDirection.Descending ? "ASC" : "DESC";

app/src/main/java/protect/card_locker/FormatException.java

@@ -5,15 +5,12 @@ package protect.card_locker;
  * encountered with the format of data being
  * imported or exported.
  */
-public class FormatException extends Exception
-{
-    public FormatException(String message)
-    {
+public class FormatException extends Exception {
+    public FormatException(String message) {
         super(message);
     }
 
-    public FormatException(String message, Exception rootCause)
-    {
+    public FormatException(String message, Exception rootCause) {
         super(message, rootCause);
     }
 }

app/src/main/java/protect/card_locker/Group.java

@@ -2,8 +2,9 @@ package protect.card_locker;
 
 import android.database.Cursor;
 
-public class Group
-{
+import androidx.annotation.Nullable;
+
+public class Group {
     public final String _id;
     public final int order;
 
@@ -12,11 +13,28 @@ public class Group
         this.order = order;
     }
 
-    public static Group toGroup(Cursor cursor)
-    {
+    public static Group toGroup(Cursor cursor) {
         String _id = cursor.getString(cursor.getColumnIndexOrThrow(DBHelper.LoyaltyCardDbGroups.ID));
         int order = cursor.getInt(cursor.getColumnIndexOrThrow(DBHelper.LoyaltyCardDbGroups.ORDER));
 
         return new Group(_id, order);
     }
+
+    @Override
+    public boolean equals(@Nullable Object obj) {
+        if (obj == null) {
+            return false;
+        }
+        if (!(obj instanceof Group)) {
+            return false;
+        }
+        Group anotherGroup = (Group) obj;
+        return _id.equals(anotherGroup._id) && order == anotherGroup.order;
+    }
+
+    @Override
+    public int hashCode() {
+        String combined = _id + "_" + order;
+        return combined.hashCode();
+    }
 }

app/src/main/java/protect/card_locker/GroupCursorAdapter.java

@@ -2,6 +2,7 @@ package protect.card_locker;
 
 import android.content.Context;
 import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -12,50 +13,36 @@ import androidx.appcompat.widget.AppCompatImageButton;
 import androidx.recyclerview.widget.RecyclerView;
 import protect.card_locker.preferences.Settings;
 
-class GroupCursorAdapter extends BaseCursorAdapter<GroupCursorAdapter.GroupListItemViewHolder>
-{
+public class GroupCursorAdapter extends BaseCursorAdapter<GroupCursorAdapter.GroupListItemViewHolder> {
     Settings mSettings;
-    private Cursor mCursor;
     private final Context mContext;
-    private final GroupCursorAdapter.GroupAdapterListener mListener;
-    DBHelper mDb;
+    private final GroupAdapterListener mListener;
+    SQLiteDatabase mDatabase;
 
-    public GroupCursorAdapter(Context inputContext, Cursor inputCursor, GroupCursorAdapter.GroupAdapterListener inputListener) {
-        super(inputCursor);
+    public GroupCursorAdapter(Context inputContext, Cursor inputCursor, GroupAdapterListener inputListener) {
+        super(inputCursor, DBHelper.LoyaltyCardDbGroups.ORDER);
         setHasStableIds(true);
         mSettings = new Settings(inputContext);
-        mContext = inputContext;
+        mContext = inputContext.getApplicationContext();
         mListener = inputListener;
-        mDb = new DBHelper(inputContext);
+        mDatabase = new DBHelper(inputContext).getReadableDatabase();
 
-        swapCursor(mCursor);
-    }
-
-    @Override
-    public void swapCursor(Cursor inputCursor) {
-        super.swapCursor(inputCursor);
-        mCursor = inputCursor;
+        swapCursor(inputCursor);
     }
 
     @NonNull
     @Override
-    public GroupCursorAdapter.GroupListItemViewHolder onCreateViewHolder(ViewGroup inputParent, int inputViewType)
-    {
+    public GroupCursorAdapter.GroupListItemViewHolder onCreateViewHolder(ViewGroup inputParent, int inputViewType) {
         View itemView = LayoutInflater.from(inputParent.getContext()).inflate(R.layout.group_layout, inputParent, false);
-        return new GroupCursorAdapter.GroupListItemViewHolder(itemView);
+        return new GroupListItemViewHolder(itemView);
     }
 
-    public Cursor getCursor()
-    {
-        return mCursor;
-    }
-
-    public void onBindViewHolder(GroupCursorAdapter.GroupListItemViewHolder inputHolder, Cursor inputCursor) {
+    public void onBindViewHolder(GroupListItemViewHolder inputHolder, Cursor inputCursor) {
         Group group = Group.toGroup(inputCursor);
 
         inputHolder.mName.setText(group._id);
 
-        int groupCardCount = mDb.getGroupCardCount(group._id);
+        int groupCardCount = DBHelper.getGroupCardCount(mDatabase, group._id);
         inputHolder.mCardCount.setText(mContext.getResources().getQuantityString(R.plurals.groupCardCount, groupCardCount, groupCardCount));
 
         inputHolder.mName.setTextSize(mSettings.getFontSizeMax(mSettings.getMediumFont()));
@@ -64,24 +51,24 @@ class GroupCursorAdapter extends BaseCursorAdapter<GroupCursorAdapter.GroupListI
         applyClickEvents(inputHolder);
     }
 
-    private void applyClickEvents(GroupListItemViewHolder inputHolder)
-    {
+    private void applyClickEvents(GroupListItemViewHolder inputHolder) {
         inputHolder.mMoveDown.setOnClickListener(view -> mListener.onMoveDownButtonClicked(inputHolder.itemView));
         inputHolder.mMoveUp.setOnClickListener(view -> mListener.onMoveUpButtonClicked(inputHolder.itemView));
         inputHolder.mEdit.setOnClickListener(view -> mListener.onEditButtonClicked(inputHolder.itemView));
         inputHolder.mDelete.setOnClickListener(view -> mListener.onDeleteButtonClicked(inputHolder.itemView));
     }
 
-    public interface GroupAdapterListener
-    {
+    public interface GroupAdapterListener {
         void onMoveDownButtonClicked(View view);
+
         void onMoveUpButtonClicked(View view);
+
         void onEditButtonClicked(View view);
+
         void onDeleteButtonClicked(View view);
     }
 
-    public class GroupListItemViewHolder extends RecyclerView.ViewHolder
-    {
+    public static class GroupListItemViewHolder extends RecyclerView.ViewHolder {
         public TextView mName, mCardCount;
         public AppCompatImageButton mMoveUp, mMoveDown, mEdit, mDelete;
 

app/src/main/java/protect/card_locker/ImageLocationType.java

@@ -0,0 +1,7 @@
+package protect.card_locker;
+
+public enum ImageLocationType {
+    front,
+    back,
+    icon
+}

app/src/main/java/protect/card_locker/ImportExportActivity.java

@@ -6,58 +6,64 @@ import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.net.Uri;
-import android.os.AsyncTask;
 import android.os.Bundle;
 import android.text.InputType;
 import android.util.Log;
 import android.view.MenuItem;
-import android.view.View;
+import android.view.ViewGroup;
 import android.widget.Button;
 import android.widget.EditText;
+import android.widget.FrameLayout;
 import android.widget.Toast;
 
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.util.ArrayList;
-import java.util.List;
-
+import androidx.activity.result.ActivityResultLauncher;
+import androidx.activity.result.contract.ActivityResultContracts;
 import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.widget.Toolbar;
 import androidx.core.app.ActivityCompat;
 import androidx.core.content.ContextCompat;
+
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.ArrayList;
+import java.util.List;
+
+import protect.card_locker.async.TaskHandler;
 import protect.card_locker.importexport.DataFormat;
 import protect.card_locker.importexport.ImportExportResult;
+import protect.card_locker.importexport.ImportExportResultType;
 
-public class ImportExportActivity extends CatimaAppCompatActivity
-{
+public class ImportExportActivity extends CatimaAppCompatActivity {
     private static final String TAG = "Catima";
 
     private static final int PERMISSIONS_EXTERNAL_STORAGE = 1;
-    private static final int CHOOSE_EXPORT_LOCATION = 2;
-    private static final int IMPORT = 3;
 
     private ImportExportTask importExporter;
 
     private String importAlertTitle;
     private String importAlertMessage;
     private DataFormat importDataFormat;
+    private String exportPassword;
+
+    private ActivityResultLauncher<Intent> fileCreateLauncher;
+    private ActivityResultLauncher<String> fileOpenLauncher;
+    private ActivityResultLauncher<Intent> filePickerLauncher;
+
+    final private TaskHandler mTasks = new TaskHandler();
 
     @Override
-    protected void onCreate(Bundle savedInstanceState)
-    {
+    protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setTitle(R.string.importExport);
         setContentView(R.layout.import_export_activity);
         Toolbar toolbar = findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);
         ActionBar actionBar = getSupportActionBar();
-        if(actionBar != null)
-        {
+        if (actionBar != null) {
             actionBar.setDisplayHomeAsUpEnabled(true);
         }
 
@@ -66,15 +72,57 @@ public class ImportExportActivity extends CatimaAppCompatActivity
 
         if (ContextCompat.checkSelfPermission(ImportExportActivity.this,
                 Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED ||
-            ContextCompat.checkSelfPermission(ImportExportActivity.this,
-                Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED)
-        {
+                ContextCompat.checkSelfPermission(ImportExportActivity.this,
+                        Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
             ActivityCompat.requestPermissions(ImportExportActivity.this,
                     new String[]{Manifest.permission.READ_EXTERNAL_STORAGE,
-                                 Manifest.permission.WRITE_EXTERNAL_STORAGE},
+                            Manifest.permission.WRITE_EXTERNAL_STORAGE},
                     PERMISSIONS_EXTERNAL_STORAGE);
         }
 
+        // would use ActivityResultContracts.CreateDocument() but mime type cannot be set
+        fileCreateLauncher = registerForActivityResult(new ActivityResultContracts.StartActivityForResult(), result -> {
+            Intent intent = result.getData();
+            if (intent == null) {
+                Log.e(TAG, "Activity returned NULL data");
+                return;
+            }
+            Uri uri = intent.getData();
+            if (uri == null) {
+                Log.e(TAG, "Activity returned NULL uri");
+                return;
+            }
+            try {
+                OutputStream writer = getContentResolver().openOutputStream(uri);
+                Log.e(TAG, "Starting file export with: " + result.toString());
+                startExport(writer, uri, exportPassword.toCharArray(), true);
+            } catch (IOException e) {
+                Log.e(TAG, "Failed to export file: " + result.toString(), e);
+                onExportComplete(new ImportExportResult(ImportExportResultType.GenericFailure, result.toString()), uri);
+            }
+
+        });
+        fileOpenLauncher = registerForActivityResult(new ActivityResultContracts.GetContent(), result -> {
+            if (result == null) {
+                Log.e(TAG, "Activity returned NULL data");
+                return;
+            }
+            openFileForImport(result, null);
+        });
+        filePickerLauncher = registerForActivityResult(new ActivityResultContracts.StartActivityForResult(), result -> {
+            Intent intent = result.getData();
+            if (intent == null) {
+                Log.e(TAG, "Activity returned NULL data");
+                return;
+            }
+            Uri uri = intent.getData();
+            if (uri == null) {
+                Log.e(TAG, "Activity returned NULL uri");
+                return;
+            }
+            openFileForImport(intent.getData(), null);
+        });
+
         // Check that there is a file manager available
         final Intent intentCreateDocumentAction = new Intent(Intent.ACTION_CREATE_DOCUMENT);
         intentCreateDocumentAction.addCategory(Intent.CATEGORY_OPENABLE);
@@ -82,45 +130,57 @@ public class ImportExportActivity extends CatimaAppCompatActivity
         intentCreateDocumentAction.putExtra(Intent.EXTRA_TITLE, "catima.zip");
 
         Button exportButton = findViewById(R.id.exportButton);
-        exportButton.setOnClickListener(new View.OnClickListener()
-        {
-            @Override
-            public void onClick(View v)
-            {
-                chooseFileWithIntent(intentCreateDocumentAction, CHOOSE_EXPORT_LOCATION);
-            }
+        exportButton.setOnClickListener(v -> {
+            AlertDialog.Builder builder = new AlertDialog.Builder(ImportExportActivity.this);
+            builder.setTitle(R.string.exportPassword);
+
+            FrameLayout container = new FrameLayout(ImportExportActivity.this);
+            FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
+            params.leftMargin = 50;
+            params.rightMargin = 50;
+
+            final EditText input = new EditText(ImportExportActivity.this);
+            input.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
+            input.setLayoutParams(params);
+            input.setHint(R.string.exportPasswordHint);
+
+            container.addView(input);
+            builder.setView(container);
+            builder.setPositiveButton(R.string.ok, (dialogInterface, i) -> {
+                exportPassword = input.getText().toString();
+                try {
+                    fileCreateLauncher.launch(intentCreateDocumentAction);
+                } catch (ActivityNotFoundException e) {
+                    Toast.makeText(getApplicationContext(), R.string.failedOpeningFileManager, Toast.LENGTH_LONG).show();
+                    Log.e(TAG, "No activity found to handle intent", e);
+                }
+            });
+            builder.setNegativeButton(R.string.cancel, (dialogInterface, i) -> dialogInterface.cancel());
+            builder.show();
+
         });
 
         // Check that there is a file manager available
-        final Intent intentGetContentAction = new Intent(Intent.ACTION_GET_CONTENT);
-        intentGetContentAction.addCategory(Intent.CATEGORY_OPENABLE);
-        intentGetContentAction.setType("*/*");
-
         Button importFilesystem = findViewById(R.id.importOptionFilesystemButton);
-        importFilesystem.setOnClickListener(new View.OnClickListener()
-        {
-            @Override
-            public void onClick(View v)
-            {
-                chooseImportType(intentGetContentAction);
-            }
-        });
+        importFilesystem.setOnClickListener(v -> chooseImportType(false));
 
         // Check that there is an app that data can be imported from
-        final Intent intentPickAction = new Intent(Intent.ACTION_PICK);
-
         Button importApplication = findViewById(R.id.importOptionApplicationButton);
-        importApplication.setOnClickListener(new View.OnClickListener()
-        {
-            @Override
-            public void onClick(View v)
-            {
-                chooseImportType(intentPickAction);
-            }
-        });
+        importApplication.setOnClickListener(v -> chooseImportType(true));
     }
 
-    private void chooseImportType(Intent baseIntent) {
+    private void openFileForImport(Uri uri, char[] password) {
+        try {
+            InputStream reader = getContentResolver().openInputStream(uri);
+            Log.e(TAG, "Starting file import with: " + uri.toString());
+            startImport(reader, uri, importDataFormat, password, true);
+        } catch (IOException e) {
+            Log.e(TAG, "Failed to import file: " + uri.toString(), e);
+            onImportComplete(new ImportExportResult(ImportExportResultType.GenericFailure, e.toString()), uri, importDataFormat);
+        }
+    }
+
+    private void chooseImportType(boolean choosePicker) {
         List<CharSequence> betaImportOptions = new ArrayList<>();
         betaImportOptions.add("Fidme");
         betaImportOptions.add("Stocard");
@@ -176,47 +236,67 @@ public class ImportExportActivity extends CatimaAppCompatActivity
                             .setTitle(importAlertTitle)
                             .setMessage(importAlertMessage)
                             .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
-                                        @Override
-                                        public void onClick(DialogInterface dialog, int which) {
-                                            chooseFileWithIntent(baseIntent, IMPORT);
+                                @Override
+                                public void onClick(DialogInterface dialog, int which) {
+                                    try {
+                                        if (choosePicker) {
+                                            final Intent intentPickAction = new Intent(Intent.ACTION_PICK);
+                                            filePickerLauncher.launch(intentPickAction);
+                                        } else {
+                                            fileOpenLauncher.launch("*/*");
                                         }
-                                    })
+                                    } catch (ActivityNotFoundException e) {
+                                        Toast.makeText(getApplicationContext(), R.string.failedOpeningFileManager, Toast.LENGTH_LONG).show();
+                                        Log.e(TAG, "No activity found to handle intent", e);
+                                    }
+                                }
+                            })
                             .setNegativeButton(R.string.cancel, null)
                             .show();
                 });
         builder.show();
     }
 
-    private void startImport(final InputStream target, final Uri targetUri, final DataFormat dataFormat, final char[] password)
-    {
-        ImportExportTask.TaskCompleteListener listener = new ImportExportTask.TaskCompleteListener()
-        {
+    private void startImport(final InputStream target, final Uri targetUri, final DataFormat dataFormat, final char[] password, final boolean closeWhenDone) {
+        mTasks.flushTaskList(TaskHandler.TYPE.IMPORT, true, false, false);
+        ImportExportTask.TaskCompleteListener listener = new ImportExportTask.TaskCompleteListener() {
             @Override
-            public void onTaskComplete(ImportExportResult result, DataFormat dataFormat)
-            {
+            public void onTaskComplete(ImportExportResult result, DataFormat dataFormat) {
                 onImportComplete(result, targetUri, dataFormat);
+                if (closeWhenDone) {
+                    try {
+                        target.close();
+                    } catch (IOException ioException) {
+                        ioException.printStackTrace();
+                    }
+                }
             }
         };
 
         importExporter = new ImportExportTask(ImportExportActivity.this,
                 dataFormat, target, password, listener);
-        importExporter.execute();
+        mTasks.executeTask(TaskHandler.TYPE.IMPORT, importExporter);
     }
 
-    private void startExport(final OutputStream target, final Uri targetUri)
-    {
-        ImportExportTask.TaskCompleteListener listener = new ImportExportTask.TaskCompleteListener()
-        {
+    private void startExport(final OutputStream target, final Uri targetUri, char[] password, final boolean closeWhenDone) {
+        mTasks.flushTaskList(TaskHandler.TYPE.EXPORT, true, false, false);
+        ImportExportTask.TaskCompleteListener listener = new ImportExportTask.TaskCompleteListener() {
             @Override
-            public void onTaskComplete(ImportExportResult result, DataFormat dataFormat)
-            {
+            public void onTaskComplete(ImportExportResult result, DataFormat dataFormat) {
                 onExportComplete(result, targetUri);
+                if (closeWhenDone) {
+                    try {
+                        target.close();
+                    } catch (IOException ioException) {
+                        ioException.printStackTrace();
+                    }
+                }
             }
         };
 
         importExporter = new ImportExportTask(ImportExportActivity.this,
-                DataFormat.Catima, target, listener);
-        importExporter.execute();
+                DataFormat.Catima, target, password, listener);
+        mTasks.executeTask(TaskHandler.TYPE.EXPORT, importExporter);
     }
 
     @Override
@@ -244,22 +324,17 @@ public class ImportExportActivity extends CatimaAppCompatActivity
     }
 
     @Override
-    protected void onDestroy()
-    {
-        if(importExporter != null && importExporter.getStatus() != AsyncTask.Status.RUNNING)
-        {
-            importExporter.cancel(true);
-        }
+    protected void onDestroy() {
+        mTasks.flushTaskList(TaskHandler.TYPE.IMPORT, true, false, false);
+        mTasks.flushTaskList(TaskHandler.TYPE.EXPORT, true, false, false);
         super.onDestroy();
     }
 
     @Override
-    public boolean onOptionsItemSelected(MenuItem item)
-    {
+    public boolean onOptionsItemSelected(MenuItem item) {
         int id = item.getItemId();
 
-        if(id == android.R.id.home)
-        {
+        if (id == android.R.id.home) {
             finish();
             return true;
         }
@@ -276,73 +351,58 @@ public class ImportExportActivity extends CatimaAppCompatActivity
         builder.setView(input);
 
         builder.setPositiveButton(R.string.ok, (dialogInterface, i) -> {
-            activityResultParser(IMPORT, RESULT_OK, uri, input.getText().toString().toCharArray());
+            openFileForImport(uri, input.getText().toString().toCharArray());
         });
         builder.setNegativeButton(R.string.cancel, (dialogInterface, i) -> dialogInterface.cancel());
 
         builder.show();
     }
 
+    private String buildResultDialogMessage(ImportExportResult result, boolean isImport) {
+        int messageId;
+
+        if (result.resultType() == ImportExportResultType.Success) {
+            messageId = isImport ? R.string.importSuccessful : R.string.exportSuccessful;
+        } else {
+            messageId = isImport ? R.string.importFailed : R.string.exportFailed;
+        }
+
+        StringBuilder messageBuilder = new StringBuilder(getResources().getString(messageId));
+        if (result.developerDetails() != null) {
+            messageBuilder.append("\n\n");
+            messageBuilder.append(getResources().getString(R.string.include_if_asking_support));
+            messageBuilder.append("\n\n");
+            messageBuilder.append(result.developerDetails());
+        }
+
+        return messageBuilder.toString();
+    }
+
     private void onImportComplete(ImportExportResult result, Uri path, DataFormat dataFormat) {
-        if (result == ImportExportResult.BadPassword) {
+        ImportExportResultType resultType = result.resultType();
+
+        if (resultType == ImportExportResultType.BadPassword) {
             retryWithPassword(dataFormat, path);
             return;
         }
 
         AlertDialog.Builder builder = new AlertDialog.Builder(this);
-
-        int messageId;
-
-        if (result == ImportExportResult.Success)
-        {
-            builder.setTitle(R.string.importSuccessfulTitle);
-            messageId = R.string.importSuccessful;
-        }
-        else
-        {
-            builder.setTitle(R.string.importFailedTitle);
-            messageId = R.string.importFailed;
-        }
-
-        final String message = getResources().getString(messageId);
-
-        builder.setMessage(message);
-        builder.setNeutralButton(R.string.ok, new DialogInterface.OnClickListener()
-        {
-            @Override
-            public void onClick(DialogInterface dialog, int which)
-            {
-                dialog.dismiss();
-            }
-        });
+        builder.setTitle(resultType == ImportExportResultType.Success ? R.string.importSuccessfulTitle : R.string.importFailedTitle);
+        builder.setMessage(buildResultDialogMessage(result, true));
+        builder.setNeutralButton(R.string.ok, (dialog, which) -> dialog.dismiss());
 
         builder.create().show();
     }
 
-    private void onExportComplete(ImportExportResult result, final Uri path)
-    {
+    private void onExportComplete(ImportExportResult result, final Uri path) {
+        ImportExportResultType resultType = result.resultType();
+
         AlertDialog.Builder builder = new AlertDialog.Builder(this);
-
-        int messageId;
-
-        if(result == ImportExportResult.Success)
-        {
-            builder.setTitle(R.string.exportSuccessfulTitle);
-            messageId = R.string.exportSuccessful;
-        }
-        else
-        {
-            builder.setTitle(R.string.exportFailedTitle);
-            messageId = R.string.exportFailed;
-        }
-
-        final String message = getResources().getString(messageId);
-
-        builder.setMessage(message);
+        builder.setTitle(resultType == ImportExportResultType.Success ? R.string.exportSuccessfulTitle : R.string.exportFailedTitle);
+        builder.setMessage(buildResultDialogMessage(result, false));
         builder.setNeutralButton(R.string.ok, (dialog, which) -> dialog.dismiss());
 
-        if(result == ImportExportResult.Success)
-        {
+        if (resultType == ImportExportResultType.Success) {
             final CharSequence sendLabel = ImportExportActivity.this.getResources().getText(R.string.sendLabel);
 
             builder.setPositiveButton(sendLabel, (dialog, which) -> {
@@ -362,92 +422,4 @@ public class ImportExportActivity extends CatimaAppCompatActivity
 
         builder.create().show();
     }
-
-    private void chooseFileWithIntent(Intent intent, int requestCode)
-    {
-        try
-        {
-            startActivityForResult(intent, requestCode);
-        }
-        catch (ActivityNotFoundException e)
-        {
-            Toast.makeText(getApplicationContext(), R.string.failedOpeningFileManager, Toast.LENGTH_LONG).show();
-            Log.e(TAG, "No activity found to handle intent", e);
-        }
-    }
-
-    private void activityResultParser(int requestCode, int resultCode, Uri uri, char[] password) {
-        if (resultCode != RESULT_OK)
-        {
-            Log.w(TAG, "Failed onActivityResult(), result=" + resultCode);
-            return;
-        }
-
-        if(uri == null)
-        {
-            Log.e(TAG, "Activity returned a NULL URI");
-            return;
-        }
-
-        try
-        {
-            if (requestCode == CHOOSE_EXPORT_LOCATION)
-            {
-                OutputStream writer;
-                if (uri.getScheme() != null)
-                {
-                    writer = getContentResolver().openOutputStream(uri);
-                }
-                else
-                {
-                    writer = new FileOutputStream(new File(uri.toString()));
-                }
-
-                Log.e(TAG, "Starting file export with: " + uri.toString());
-                startExport(writer, uri);
-            }
-            else
-            {
-                InputStream reader;
-                if(uri.getScheme() != null)
-                {
-                    reader = getContentResolver().openInputStream(uri);
-                }
-                else
-                {
-                    reader = new FileInputStream(new File(uri.toString()));
-                }
-
-                Log.e(TAG, "Starting file import with: " + uri.toString());
-
-                startImport(reader, uri, importDataFormat, password);
-            }
-        }
-        catch(FileNotFoundException e)
-        {
-            Log.e(TAG, "Failed to import/export file: " + uri.toString(), e);
-            if (requestCode == CHOOSE_EXPORT_LOCATION)
-            {
-                onExportComplete(ImportExportResult.GenericFailure, uri);
-            }
-            else
-            {
-                onImportComplete(ImportExportResult.GenericFailure, uri, importDataFormat);
-            }
-        }
-    }
-
-    @Override
-    protected void onActivityResult(int requestCode, int resultCode, Intent data)
-    {
-        super.onActivityResult(requestCode, resultCode, data);
-
-        if(data == null)
-        {
-            Log.e(TAG, "Activity returned NULL data");
-            return;
-        }
-
-        activityResultParser(requestCode, resultCode, data.getData(), null);
-    }
 }

app/src/main/java/protect/card_locker/ImportExportTask.java

@@ -4,7 +4,7 @@ import android.app.Activity;
 import android.app.ProgressDialog;
 import android.content.Context;
 import android.content.DialogInterface;
-import android.os.AsyncTask;
+import android.database.sqlite.SQLiteDatabase;
 import android.util.Log;
 
 import java.io.IOException;
@@ -13,13 +13,14 @@ import java.io.OutputStream;
 import java.io.OutputStreamWriter;
 import java.nio.charset.StandardCharsets;
 
+import protect.card_locker.async.CompatCallable;
 import protect.card_locker.importexport.DataFormat;
 import protect.card_locker.importexport.ImportExportResult;
+import protect.card_locker.importexport.ImportExportResultType;
 import protect.card_locker.importexport.MultiFormatExporter;
 import protect.card_locker.importexport.MultiFormatImporter;
 
-class ImportExportTask extends AsyncTask<Void, Void, ImportExportResult>
-{
+public class ImportExportTask implements CompatCallable<ImportExportResult> {
     private static final String TAG = "Catima";
 
     private Activity activity;
@@ -35,14 +36,14 @@ class ImportExportTask extends AsyncTask<Void, Void, ImportExportResult>
     /**
      * Constructor which will setup a task for exporting to the given file
      */
-    ImportExportTask(Activity activity, DataFormat format, OutputStream output,
-            TaskCompleteListener listener)
-    {
+    ImportExportTask(Activity activity, DataFormat format, OutputStream output, char[] password,
+                     TaskCompleteListener listener) {
         super();
         this.activity = activity;
         this.doImport = false;
         this.format = format;
         this.outputStream = output;
+        this.password = password;
         this.listener = listener;
     }
 
@@ -50,8 +51,7 @@ class ImportExportTask extends AsyncTask<Void, Void, ImportExportResult>
      * Constructor which will setup a task for importing from the given InputStream.
      */
     ImportExportTask(Activity activity, DataFormat format, InputStream input, char[] password,
-                            TaskCompleteListener listener)
-    {
+                     TaskCompleteListener listener) {
         super();
         this.activity = activity;
         this.doImport = true;
@@ -61,27 +61,23 @@ class ImportExportTask extends AsyncTask<Void, Void, ImportExportResult>
         this.listener = listener;
     }
 
-    private ImportExportResult performImport(Context context, InputStream stream, DBHelper db, char[] password)
-    {
-        ImportExportResult importResult = MultiFormatImporter.importData(context, db, stream, format, password);
+    private ImportExportResult performImport(Context context, InputStream stream, SQLiteDatabase database, char[] password) {
+        ImportExportResult importResult = MultiFormatImporter.importData(context, database, stream, format, password);
 
-        Log.i(TAG, "Import result: " + importResult.name());
+        Log.i(TAG, "Import result: " + importResult);
 
         return importResult;
     }
 
-    private ImportExportResult performExport(Context context, OutputStream stream, DBHelper db)
-    {
-        ImportExportResult result = ImportExportResult.GenericFailure;
+    private ImportExportResult performExport(Context context, OutputStream stream, SQLiteDatabase database, char[] password) {
+        ImportExportResult result;
 
-        try
-        {
+        try {
             OutputStreamWriter writer = new OutputStreamWriter(stream, StandardCharsets.UTF_8);
-            result = MultiFormatExporter.exportData(context, db, stream, format);
+            result = MultiFormatExporter.exportData(context, database, stream, format, password);
             writer.close();
-        }
-        catch (IOException e)
-        {
+        } catch (IOException e) {
+            result = new ImportExportResult(ImportExportResultType.GenericFailure, e.toString());
             Log.e(TAG, "Unable to export file", e);
         }
 
@@ -90,55 +86,57 @@ class ImportExportTask extends AsyncTask<Void, Void, ImportExportResult>
         return result;
     }
 
-    protected void onPreExecute()
-    {
+    public void onPreExecute() {
         progress = new ProgressDialog(activity);
         progress.setTitle(doImport ? R.string.importing : R.string.exporting);
 
-        progress.setOnDismissListener(new DialogInterface.OnDismissListener()
-        {
+        progress.setOnDismissListener(new DialogInterface.OnDismissListener() {
             @Override
-            public void onDismiss(DialogInterface dialog)
-            {
-                ImportExportTask.this.cancel(true);
+            public void onDismiss(DialogInterface dialog) {
+                ImportExportTask.this.stop();
             }
         });
 
         progress.show();
     }
 
-    protected ImportExportResult doInBackground(Void... nothing)
-    {
-        final DBHelper db = new DBHelper(activity);
+    protected ImportExportResult doInBackground(Void... nothing) {
+        final SQLiteDatabase database = new DBHelper(activity).getWritableDatabase();
         ImportExportResult result;
 
-        if(doImport)
-        {
-            result = performImport(activity.getApplicationContext(), inputStream, db, password);
-        }
-        else
-        {
-            result = performExport(activity.getApplicationContext(), outputStream, db);
+        if (doImport) {
+            result = performImport(activity.getApplicationContext(), inputStream, database, password);
+        } else {
+            result = performExport(activity.getApplicationContext(), outputStream, database, password);
         }
 
+        database.close();
+
         return result;
     }
 
-    protected void onPostExecute(ImportExportResult result)
-    {
-        listener.onTaskComplete(result, format);
+    public void onPostExecute(Object castResult) {
+        listener.onTaskComplete((ImportExportResult) castResult, format);
 
         progress.dismiss();
         Log.i(TAG, (doImport ? "Import" : "Export") + " Complete");
     }
 
-    protected void onCancelled()
-    {
+    protected void onCancelled() {
         progress.dismiss();
         Log.i(TAG, (doImport ? "Import" : "Export") + " Cancelled");
     }
-    interface TaskCompleteListener
-    {
+
+    protected void stop() {
+        // Whelp
+    }
+
+    @Override
+    public ImportExportResult call() {
+        return doInBackground();
+    }
+
+    interface TaskCompleteListener {
         void onTaskComplete(ImportExportResult result, DataFormat format);
     }
 

app/src/main/java/protect/card_locker/ImportURIHelper.java

@@ -4,8 +4,6 @@ import android.content.Context;
 import android.content.Intent;
 import android.net.Uri;
 
-import com.google.zxing.BarcodeFormat;
-
 import java.io.InvalidObjectException;
 import java.io.UnsupportedEncodingException;
 import java.math.BigDecimal;
@@ -35,7 +33,7 @@ public class ImportURIHelper {
     private final String shareMultipleText;
 
     public ImportURIHelper(Context context) {
-        this.context = context;
+        this.context = context.getApplicationContext();
         hosts[0] = context.getResources().getString(R.string.intent_import_card_from_url_host_catima_app);
         paths[0] = context.getResources().getString(R.string.intent_import_card_from_url_path_prefix_catima_app);
         hosts[1] = context.getResources().getString(R.string.intent_import_card_from_url_host_thelastproject);
@@ -57,7 +55,7 @@ public class ImportURIHelper {
     }
 
     public LoyaltyCard parse(Uri uri) throws InvalidObjectException {
-        if(!isImportUri(uri)) {
+        if (!isImportUri(uri)) {
             throw new InvalidObjectException("Not an import URI");
         }
 
@@ -92,37 +90,33 @@ public class ImportURIHelper {
             String note = kv.get(NOTE);
             String cardId = kv.get(CARD_ID);
             String barcodeId = kv.get(BARCODE_ID);
-            if (store == null || note == null || cardId == null) throw new InvalidObjectException("Not a valid import URI: " + uri.toString());
+            if (store == null || note == null || cardId == null)
+                throw new InvalidObjectException("Not a valid import URI: " + uri.toString());
 
             String unparsedBarcodeType = kv.get(BARCODE_TYPE);
-            if(unparsedBarcodeType != null && !unparsedBarcodeType.equals(""))
-            {
+            if (unparsedBarcodeType != null && !unparsedBarcodeType.equals("")) {
                 barcodeType = CatimaBarcode.fromName(unparsedBarcodeType);
             }
 
             String unparsedBalance = kv.get(BALANCE);
-            if(unparsedBalance != null && !unparsedBalance.equals(""))
-            {
+            if (unparsedBalance != null && !unparsedBalance.equals("")) {
                 balance = new BigDecimal(unparsedBalance);
             }
             String unparsedBalanceType = kv.get(BALANCE_TYPE);
-            if (unparsedBalanceType != null && !unparsedBalanceType.equals(""))
-            {
+            if (unparsedBalanceType != null && !unparsedBalanceType.equals("")) {
                 balanceType = Currency.getInstance(unparsedBalanceType);
             }
             String unparsedExpiry = kv.get(EXPIRY);
-            if(unparsedExpiry != null && !unparsedExpiry.equals(""))
-            {
+            if (unparsedExpiry != null && !unparsedExpiry.equals("")) {
                 expiry = new Date(Long.parseLong(unparsedExpiry));
             }
 
             String unparsedHeaderColor = kv.get(HEADER_COLOR);
-            if(unparsedHeaderColor != null)
-            {
+            if (unparsedHeaderColor != null) {
                 headerColor = Integer.parseInt(unparsedHeaderColor);
             }
 
-            return new LoyaltyCard(-1, store, note, expiry, balance, balanceType, cardId, barcodeId, barcodeType, headerColor, 0, Utils.getUnixTime());
+            return new LoyaltyCard(-1, store, note, expiry, balance, balanceType, cardId, barcodeId, barcodeType, headerColor, 0, Utils.getUnixTime(), 100);
         } catch (NullPointerException | NumberFormatException | UnsupportedEncodingException ex) {
             throw new InvalidObjectException("Not a valid import URI");
         }
@@ -159,14 +153,14 @@ public class ImportURIHelper {
             fragment = appendFragment(fragment, EXPIRY, String.valueOf(loyaltyCard.expiry.getTime()));
         }
         fragment = appendFragment(fragment, CARD_ID, loyaltyCard.cardId);
-        if(loyaltyCard.barcodeId != null) {
+        if (loyaltyCard.barcodeId != null) {
             fragment = appendFragment(fragment, BARCODE_ID, loyaltyCard.barcodeId);
         }
 
-        if(loyaltyCard.barcodeType != null) {
+        if (loyaltyCard.barcodeType != null) {
             fragment = appendFragment(fragment, BARCODE_TYPE, loyaltyCard.barcodeType.name());
         }
-        if(loyaltyCard.headerColor != null) {
+        if (loyaltyCard.headerColor != null) {
             fragment = appendFragment(fragment, HEADER_COLOR, loyaltyCard.headerColor.toString());
         }
         // Star status will not be exported
@@ -203,6 +197,7 @@ public class ImportURIHelper {
         sendIntent.setType("text/plain");
 
         Intent shareIntent = Intent.createChooser(sendIntent, null);
+        shareIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
         context.startActivity(shareIntent);
     }
 }

app/src/main/java/protect/card_locker/LetterBitmap.java

@@ -18,8 +18,7 @@ import android.text.TextPaint;
  * alphabet or digit, if there is no letter or digit available, a default image
  * is shown instead.
  */
-class LetterBitmap
-{
+class LetterBitmap {
 
     /**
      * The number of available tile colors
@@ -37,39 +36,32 @@ class LetterBitmap
     /**
      * Constructor for <code>LetterTileProvider</code>
      *
-     * @param context The {@link Context} to use
-     * @param displayName The name used to create the letter for the tile
-     * @param key         The key used to generate the background color for the tile
+     * @param context            The {@link Context} to use
+     * @param displayName        The name used to create the letter for the tile
+     * @param key                The key used to generate the background color for the tile
      * @param tileLetterFontSize The font size used to display the letter
-     * @param width       The desired width of the tile
-     * @param height      The desired height of the tile
-     * @param backgroundColor  (optional) color to use for background.
-     * @param textColor  (optional) color to use for text.
+     * @param width              The desired width of the tile
+     * @param height             The desired height of the tile
+     * @param backgroundColor    (optional) color to use for background.
+     * @param textColor          (optional) color to use for text.
      */
     public LetterBitmap(Context context, String displayName, String key, int tileLetterFontSize,
-                        int width, int height, Integer backgroundColor, Integer textColor)
-    {
+                        int width, int height, Integer backgroundColor, Integer textColor) {
         TextPaint paint = new TextPaint();
         paint.setTypeface(Typeface.create("sans-serif-light", Typeface.BOLD));
 
-        if(textColor != null)
-        {
+        if (textColor != null) {
             paint.setColor(textColor);
-        }
-        else
-        {
+        } else {
             paint.setColor(Color.WHITE);
         }
 
         paint.setTextAlign(Paint.Align.CENTER);
         paint.setAntiAlias(true);
 
-        if(backgroundColor == null)
-        {
+        if (backgroundColor == null) {
             mColor = getDefaultColor(context, key);
-        }
-        else
-        {
+        } else {
             mColor = backgroundColor;
         }
 
@@ -80,7 +72,7 @@ class LetterBitmap
         c.setBitmap(mBitmap);
         c.drawColor(mColor);
 
-        char [] firstCharArray = new char[1];
+        char[] firstCharArray = new char[1];
         firstCharArray[0] = firstChar.toUpperCase().charAt(0);
         paint.setTextSize(tileLetterFontSize);
 
@@ -97,16 +89,14 @@ class LetterBitmap
      * alphabet or digit, if there is no letter or digit available, a
      * default image is shown instead
      */
-    public Bitmap getLetterTile()
-    {
+    public Bitmap getLetterTile() {
         return mBitmap;
     }
 
     /**
      * @return background color used for letter title.
      */
-    public int getBackgroundColor()
-    {
+    public int getBackgroundColor() {
         return mColor;
     }
 
@@ -115,8 +105,7 @@ class LetterBitmap
      * @return A new or previously chosen color for <code>key</code> used as the
      * tile background color
      */
-    private static int pickColor(String key, TypedArray colors)
-    {
+    private static int pickColor(String key, TypedArray colors) {
         // String.hashCode() is not supposed to change across java versions, so
         // this should guarantee the same key always maps to the same color
         final int color = Math.abs(key.hashCode()) % NUM_OF_TILE_COLORS;
@@ -127,8 +116,7 @@ class LetterBitmap
      * Determine the color which the letter tile will use if no default
      * color is provided.
      */
-    public static int getDefaultColor(Context context, String key)
-    {
+    public static int getDefaultColor(Context context, String key) {
         final Resources res = context.getResources();
 
         TypedArray colors = res.obtainTypedArray(R.array.letter_tile_colors);

app/src/main/java/protect/card_locker/LoyaltyCard.java

@@ -30,12 +30,12 @@ public class LoyaltyCard implements Parcelable {
 
     public final int starStatus;
     public final long lastUsed;
+    public int zoomLevel;
 
     public LoyaltyCard(final int id, final String store, final String note, final Date expiry,
                        final BigDecimal balance, final Currency balanceType, final String cardId,
                        @Nullable final String barcodeId, @Nullable final CatimaBarcode barcodeType,
-                       @Nullable final Integer headerColor, final int starStatus, final long lastUsed)
-    {
+                       @Nullable final Integer headerColor, final int starStatus, final long lastUsed, final int zoomLevel) {
         this.id = id;
         this.store = store;
         this.note = note;
@@ -48,6 +48,7 @@ public class LoyaltyCard implements Parcelable {
         this.headerColor = headerColor;
         this.starStatus = starStatus;
         this.lastUsed = lastUsed;
+        this.zoomLevel = zoomLevel;
     }
 
     protected LoyaltyCard(Parcel in) {
@@ -66,6 +67,7 @@ public class LoyaltyCard implements Parcelable {
         headerColor = tmpHeaderColor != -1 ? tmpHeaderColor : null;
         starStatus = in.readInt();
         lastUsed = in.readLong();
+        zoomLevel = in.readInt();
     }
 
     @Override
@@ -82,10 +84,10 @@ public class LoyaltyCard implements Parcelable {
         parcel.writeInt(headerColor != null ? headerColor : -1);
         parcel.writeInt(starStatus);
         parcel.writeLong(lastUsed);
+        parcel.writeInt(zoomLevel);
     }
 
-    public static LoyaltyCard toLoyaltyCard(Cursor cursor)
-    {
+    public static LoyaltyCard toLoyaltyCard(Cursor cursor) {
         int id = cursor.getInt(cursor.getColumnIndexOrThrow(DBHelper.LoyaltyCardDbIds.ID));
         String store = cursor.getString(cursor.getColumnIndexOrThrow(DBHelper.LoyaltyCardDbIds.STORE));
         String note = cursor.getString(cursor.getColumnIndexOrThrow(DBHelper.LoyaltyCardDbIds.NOTE));
@@ -95,6 +97,7 @@ public class LoyaltyCard implements Parcelable {
         String barcodeId = cursor.getString(cursor.getColumnIndexOrThrow(DBHelper.LoyaltyCardDbIds.BARCODE_ID));
         int starred = cursor.getInt(cursor.getColumnIndexOrThrow(DBHelper.LoyaltyCardDbIds.STAR_STATUS));
         long lastUsed = cursor.getLong(cursor.getColumnIndexOrThrow(DBHelper.LoyaltyCardDbIds.LAST_USED));
+        int zoomLevel = cursor.getInt(cursor.getColumnIndexOrThrow(DBHelper.LoyaltyCardDbIds.ZOOM_LEVEL));
 
         int barcodeTypeColumn = cursor.getColumnIndexOrThrow(DBHelper.LoyaltyCardDbIds.BARCODE_TYPE);
         int balanceTypeColumn = cursor.getColumnIndexOrThrow(DBHelper.LoyaltyCardDbIds.BALANCE_TYPE);
@@ -105,27 +108,23 @@ public class LoyaltyCard implements Parcelable {
         Date expiry = null;
         Integer headerColor = null;
 
-        if (cursor.isNull(barcodeTypeColumn) == false)
-        {
+        if (cursor.isNull(barcodeTypeColumn) == false) {
             barcodeType = CatimaBarcode.fromName(cursor.getString(barcodeTypeColumn));
         }
 
-        if (cursor.isNull(balanceTypeColumn) == false)
-        {
+        if (cursor.isNull(balanceTypeColumn) == false) {
             balanceType = Currency.getInstance(cursor.getString(balanceTypeColumn));
         }
 
-        if(expiryLong > 0)
-        {
+        if (expiryLong > 0) {
             expiry = new Date(expiryLong);
         }
 
-        if(cursor.isNull(headerColorColumn) == false)
-        {
+        if (cursor.isNull(headerColorColumn) == false) {
             headerColor = cursor.getInt(headerColorColumn);
         }
 
-        return new LoyaltyCard(id, store, note, expiry, balance, balanceType, cardId, barcodeId, barcodeType, headerColor, starred, lastUsed);
+        return new LoyaltyCard(id, store, note, expiry, balance, balanceType, cardId, barcodeId, barcodeType, headerColor, starred, lastUsed, zoomLevel);
     }
 
     @Override

app/src/main/java/protect/card_locker/LoyaltyCardAnimator.java

@@ -1,37 +0,0 @@
-package protect.card_locker;
-
-import android.animation.AnimatorInflater;
-import android.animation.AnimatorSet;
-import android.content.Context;
-import android.view.View;
-
-public class LoyaltyCardAnimator {
-
-    private static AnimatorSet selectedViewIn, defaultViewOut, selectedViewOut, defaultViewIn;
-
-    public static void flipView(Context inputContext, final View inputSelectedView, final View inputDefaultView, boolean inputItemSelected) {
-
-        selectedViewIn = (AnimatorSet) AnimatorInflater.loadAnimator(inputContext, R.animator.flip_left_in);
-        defaultViewOut = (AnimatorSet) AnimatorInflater.loadAnimator(inputContext, R.animator.flip_right_out);
-        selectedViewOut = (AnimatorSet) AnimatorInflater.loadAnimator(inputContext, R.animator.flip_left_out);
-        defaultViewIn = (AnimatorSet) AnimatorInflater.loadAnimator(inputContext, R.animator.flip_right_in);
-
-        final AnimatorSet showFrontAnim = new AnimatorSet();
-        final AnimatorSet showBackAnim = new AnimatorSet();
-
-        selectedViewIn.setTarget(inputSelectedView);
-        defaultViewOut.setTarget(inputDefaultView);
-        showFrontAnim.playTogether(selectedViewIn, defaultViewOut);
-
-        selectedViewOut.setTarget(inputSelectedView);
-        defaultViewIn.setTarget(inputDefaultView);
-        showBackAnim.playTogether(defaultViewIn, selectedViewOut);
-
-        if (inputItemSelected) {
-            showFrontAnim.start();
-        } else {
-            showBackAnim.start();
-        }
-    }
-
-}

app/src/main/java/protect/card_locker/LoyaltyCardCursorAdapter.java

@@ -1,228 +1,198 @@
 package protect.card_locker;
 
 import android.content.Context;
+import android.content.res.Resources;
 import android.database.Cursor;
+import android.graphics.Bitmap;
 import android.graphics.Color;
-import android.graphics.PorterDuff;
 import android.graphics.drawable.Drawable;
 import android.util.SparseBooleanArray;
+import android.util.TypedValue;
 import android.view.HapticFeedbackConstants;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ImageView;
-import android.widget.LinearLayout;
-import android.widget.RelativeLayout;
 import android.widget.TextView;
 
+import androidx.constraintlayout.widget.ConstraintLayout;
+import androidx.core.content.ContextCompat;
+import androidx.core.graphics.BlendModeColorFilterCompat;
+import androidx.core.graphics.BlendModeCompat;
+import androidx.recyclerview.widget.RecyclerView;
+
 import com.google.android.material.card.MaterialCardView;
 
 import java.math.BigDecimal;
 import java.text.DateFormat;
 import java.util.ArrayList;
+import java.util.Currency;
+import java.util.Date;
 
-import androidx.cardview.widget.CardView;
-import androidx.recyclerview.widget.RecyclerView;
 import protect.card_locker.preferences.Settings;
 
-public class LoyaltyCardCursorAdapter extends BaseCursorAdapter<LoyaltyCardCursorAdapter.LoyaltyCardListItemViewHolder>
-{
+public class LoyaltyCardCursorAdapter extends BaseCursorAdapter<LoyaltyCardCursorAdapter.LoyaltyCardListItemViewHolder> {
     private int mCurrentSelectedIndex = -1;
-    private Cursor mCursor;
     Settings mSettings;
     boolean mDarkModeEnabled;
-    private Context mContext;
-    private CardAdapterListener mListener;
-    private SparseBooleanArray mSelectedItems;
-    private SparseBooleanArray mAnimationItemsIndex;
+    private final Context mContext;
+    private final CardAdapterListener mListener;
+    protected SparseBooleanArray mSelectedItems;
+    protected SparseBooleanArray mAnimationItemsIndex;
     private boolean mReverseAllAnimations = false;
+    private boolean mShowDetails = true;
 
-    public LoyaltyCardCursorAdapter(Context inputContext, Cursor inputCursor, CardAdapterListener inputListener)
-    {
-        super(inputCursor);
+    public LoyaltyCardCursorAdapter(Context inputContext, Cursor inputCursor, CardAdapterListener inputListener) {
+        super(inputCursor, DBHelper.LoyaltyCardDbIds.ID);
         setHasStableIds(true);
         mSettings = new Settings(inputContext);
-        mContext = inputContext;
+        mContext = inputContext.getApplicationContext();
         mListener = inputListener;
         mSelectedItems = new SparseBooleanArray();
         mAnimationItemsIndex = new SparseBooleanArray();
 
-        mDarkModeEnabled = MainActivity.isDarkModeEnabled(inputContext);
+        mDarkModeEnabled = Utils.isDarkModeEnabled(inputContext);
 
-        swapCursor(mCursor);
+        swapCursor(inputCursor);
+    }
+
+    public void showDetails(boolean show) {
+        mShowDetails = show;
+        notifyDataSetChanged();
+    }
+
+    public boolean showingDetails() {
+        return mShowDetails;
     }
 
     @Override
-    public void swapCursor(Cursor inputCursor) {
-        super.swapCursor(inputCursor);
-        mCursor = inputCursor;
-    }
-
-    @Override
-    public LoyaltyCardListItemViewHolder onCreateViewHolder(ViewGroup inputParent, int inputViewType)
-    {
+    public LoyaltyCardListItemViewHolder onCreateViewHolder(ViewGroup inputParent, int inputViewType) {
         View itemView = LayoutInflater.from(inputParent.getContext()).inflate(R.layout.loyalty_card_layout, inputParent, false);
-        return new LoyaltyCardListItemViewHolder(itemView);
+        return new LoyaltyCardListItemViewHolder(itemView, mListener);
     }
 
-    public Cursor getCursor()
-    {
-        return mCursor;
+    public LoyaltyCard getCard(int position) {
+        mCursor.moveToPosition(position);
+        return LoyaltyCard.toLoyaltyCard(mCursor);
     }
 
     public void onBindViewHolder(LoyaltyCardListItemViewHolder inputHolder, Cursor inputCursor) {
         // Invisible until we want to show something more
         inputHolder.mDivider.setVisibility(View.GONE);
 
-        if (mDarkModeEnabled) {
-            inputHolder.mStarIcon.setColorFilter(Color.WHITE, PorterDuff.Mode.SRC_ATOP);
-        }
-
         LoyaltyCard loyaltyCard = LoyaltyCard.toLoyaltyCard(inputCursor);
 
-        inputHolder.mStoreField.setText(loyaltyCard.store);
-        inputHolder.mStoreField.setTextSize(mSettings.getFontSizeMax(mSettings.getMediumFont()));
-        if (!loyaltyCard.note.isEmpty()) {
-            inputHolder.mNoteField.setVisibility(View.VISIBLE);
-            inputHolder.mNoteField.setText(loyaltyCard.note);
-            inputHolder.mNoteField.setTextSize(mSettings.getFontSizeMax(mSettings.getSmallFont()));
+        inputHolder.setStoreField(loyaltyCard.store);
+        if (mShowDetails && !loyaltyCard.note.isEmpty()) {
+            inputHolder.setNoteField(loyaltyCard.note);
         } else {
-            inputHolder.mNoteField.setVisibility(View.GONE);
+            inputHolder.setNoteField(null);
         }
 
-        if (!loyaltyCard.balance.equals(new BigDecimal("0"))) {
-            inputHolder.mDivider.setVisibility(View.VISIBLE);
-            inputHolder.mBalanceField.setVisibility(View.VISIBLE);
-            if (mDarkModeEnabled) {
-                inputHolder.mBalanceField.getCompoundDrawables()[0].setColorFilter(Color.WHITE, PorterDuff.Mode.SRC_ATOP);
-            }
-            inputHolder.mBalanceField.setText(Utils.formatBalance(mContext, loyaltyCard.balance, loyaltyCard.balanceType));
-            inputHolder.mBalanceField.setTextSize(mSettings.getFontSizeMax(mSettings.getSmallFont()));
+        if (mShowDetails && !loyaltyCard.balance.equals(new BigDecimal("0"))) {
+            inputHolder.setBalanceField(loyaltyCard.balance, loyaltyCard.balanceType);
         } else {
-            inputHolder.mBalanceField.setVisibility(View.GONE);
+            inputHolder.setBalanceField(null, null);
         }
 
-        if (loyaltyCard.expiry != null) {
-            inputHolder.mDivider.setVisibility(View.VISIBLE);
-            inputHolder.mExpiryField.setVisibility(View.VISIBLE);
-            Drawable expiryIcon = inputHolder.mExpiryField.getCompoundDrawables()[0];
-            if (Utils.hasExpired(loyaltyCard.expiry)) {
-                expiryIcon.setColorFilter(Color.RED, PorterDuff.Mode.SRC_ATOP);
-                inputHolder.mExpiryField.setTextColor(Color.RED);
-            } else if (mDarkModeEnabled) {
-                expiryIcon.setColorFilter(Color.WHITE, PorterDuff.Mode.SRC_ATOP);
-            }
-            inputHolder.mExpiryField.setText(DateFormat.getDateInstance(DateFormat.LONG).format(loyaltyCard.expiry));
-            inputHolder.mExpiryField.setTextSize(mSettings.getFontSizeMax(mSettings.getSmallFont()));
+        if (mShowDetails && loyaltyCard.expiry != null) {
+            inputHolder.setExpiryField(loyaltyCard.expiry);
         } else {
-            inputHolder.mExpiryField.setVisibility(View.GONE);
+            inputHolder.setExpiryField(null);
         }
 
-        inputHolder.mStarIcon.setVisibility(loyaltyCard.starStatus != 0 ? View.VISIBLE : View.GONE);
-        inputHolder.mCardIcon.setImageBitmap(Utils.generateIcon(mContext, loyaltyCard.store, loyaltyCard.headerColor).getLetterTile());
+        setHeaderHeight(inputHolder, mShowDetails);
+        Bitmap cardIcon = Utils.retrieveCardImage(mContext, loyaltyCard.id, ImageLocationType.icon);
+        if (cardIcon != null) {
+            inputHolder.mCardIcon.setImageBitmap(cardIcon);
+            inputHolder.mCardIcon.setScaleType(ImageView.ScaleType.CENTER_CROP);
+        } else {
+            inputHolder.mCardIcon.setImageBitmap(Utils.generateIcon(mContext, loyaltyCard.store, loyaltyCard.headerColor).getLetterTile());
+            inputHolder.mCardIcon.setScaleType(ImageView.ScaleType.FIT_CENTER);
+        }
+        inputHolder.setIconBackgroundColor(loyaltyCard.headerColor != null ? loyaltyCard.headerColor : R.attr.colorPrimary);
+
+        inputHolder.toggleStar(loyaltyCard.starStatus != 0, itemSelected(inputCursor.getPosition()));
 
         inputHolder.itemView.setActivated(mSelectedItems.get(inputCursor.getPosition(), false));
         applyIconAnimation(inputHolder, inputCursor.getPosition());
         applyClickEvents(inputHolder, inputCursor.getPosition());
+
+        // Force redraw to fix size not shrinking after data change
+        inputHolder.mRow.requestLayout();
     }
 
-    private void applyClickEvents(LoyaltyCardListItemViewHolder inputHolder, final int inputPosition)
-    {
+    private void setHeaderHeight(LoyaltyCardListItemViewHolder inputHolder, boolean expanded) {
+        int iconHeight;
+        if (expanded) {
+            iconHeight = ViewGroup.LayoutParams.MATCH_PARENT;
+        } else {
+            iconHeight = (int) mContext.getResources().getDimension(R.dimen.cardThumbnailSize);
+        }
+
+        inputHolder.mIconLayout.getLayoutParams().height = expanded ? 0 : iconHeight;
+        inputHolder.mCardIcon.getLayoutParams().height = iconHeight;
+        inputHolder.mTickIcon.getLayoutParams().height = iconHeight;
+    }
+
+    private void applyClickEvents(LoyaltyCardListItemViewHolder inputHolder, final int inputPosition) {
         inputHolder.mRow.setOnClickListener(inputView -> mListener.onRowClicked(inputPosition));
-        inputHolder.mInformationContainer.setOnClickListener(inputView -> mListener.onRowClicked(inputPosition));
 
         inputHolder.mRow.setOnLongClickListener(inputView -> {
             mListener.onRowLongClicked(inputPosition);
             inputView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
             return true;
         });
-
-        inputHolder.mInformationContainer.setOnLongClickListener(inputView -> {
-            mListener.onRowLongClicked(inputPosition);
-            inputView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
-            return true;
-        });
     }
 
-    private void applyIconAnimation(LoyaltyCardListItemViewHolder inputHolder, int inputPosition)
-    {
-        if (mSelectedItems.get(inputPosition, false))
-        {
-            inputHolder.mThumbnailFrontContainer.setVisibility(View.GONE);
-            resetIconYAxis(inputHolder.mThumbnailBackContainer);
-            inputHolder.mThumbnailBackContainer.setVisibility(View.VISIBLE);
-            inputHolder.mThumbnailBackContainer.setAlpha(1);
-            if (mCurrentSelectedIndex == inputPosition)
-            {
-                LoyaltyCardAnimator.flipView(mContext, inputHolder.mThumbnailBackContainer, inputHolder.mThumbnailFrontContainer, true);
+    private boolean itemSelected(int inputPosition) {
+        return mSelectedItems.get(inputPosition, false);
+    }
+
+    private void applyIconAnimation(LoyaltyCardListItemViewHolder inputHolder, int inputPosition) {
+        if (itemSelected(inputPosition)) {
+            inputHolder.mCardIcon.setVisibility(View.GONE);
+            inputHolder.mTickIcon.setVisibility(View.VISIBLE);
+            if (mCurrentSelectedIndex == inputPosition) {
                 resetCurrentIndex();
             }
-        }
-        else
-        {
-            inputHolder.mThumbnailBackContainer.setVisibility(View.GONE);
-            resetIconYAxis(inputHolder.mThumbnailFrontContainer);
-            inputHolder.mThumbnailFrontContainer.setVisibility(View.VISIBLE);
-            inputHolder.mThumbnailFrontContainer.setAlpha(1);
-            if ((mReverseAllAnimations && mAnimationItemsIndex.get(inputPosition, false)) || mCurrentSelectedIndex == inputPosition)
-            {
-                LoyaltyCardAnimator.flipView(mContext, inputHolder.mThumbnailBackContainer, inputHolder.mThumbnailFrontContainer, false);
+        } else {
+            inputHolder.mTickIcon.setVisibility(View.GONE);
+            inputHolder.mCardIcon.setVisibility(View.VISIBLE);
+            if ((mReverseAllAnimations && mAnimationItemsIndex.get(inputPosition, false)) || mCurrentSelectedIndex == inputPosition) {
                 resetCurrentIndex();
             }
         }
     }
 
-    private void resetIconYAxis(View inputView)
-    {
-        if (inputView.getRotationY() != 0)
-        {
-            inputView.setRotationY(0);
-        }
-    }
-
-    public void resetAnimationIndex()
-    {
-        mReverseAllAnimations = false;
-        mAnimationItemsIndex.clear();
-    }
-
-
-    public void toggleSelection(int inputPosition)
-    {
+    public void toggleSelection(int inputPosition) {
         mCurrentSelectedIndex = inputPosition;
-        if (mSelectedItems.get(inputPosition, false))
-        {
+        if (mSelectedItems.get(inputPosition, false)) {
             mSelectedItems.delete(inputPosition);
             mAnimationItemsIndex.delete(inputPosition);
-        }
-        else
-        {
+        } else {
             mSelectedItems.put(inputPosition, true);
             mAnimationItemsIndex.put(inputPosition, true);
         }
         notifyDataSetChanged();
     }
 
-    public void clearSelections()
-    {
+    public void clearSelections() {
         mReverseAllAnimations = true;
         mSelectedItems.clear();
         notifyDataSetChanged();
     }
 
-    public int getSelectedItemCount()
-    {
+    public int getSelectedItemCount() {
         return mSelectedItems.size();
     }
 
-    public ArrayList<LoyaltyCard> getSelectedItems()
-    {
+    public ArrayList<LoyaltyCard> getSelectedItems() {
 
         ArrayList<LoyaltyCard> result = new ArrayList<>();
 
         int i;
-        for(i = 0; i < mSelectedItems.size(); i++)
-        {
+        for (i = 0; i < mSelectedItems.size(); i++) {
             mCursor.moveToPosition(mSelectedItems.keyAt(i));
             result.add(LoyaltyCard.toLoyaltyCard(mCursor));
         }
@@ -230,50 +200,147 @@ public class LoyaltyCardCursorAdapter extends BaseCursorAdapter<LoyaltyCardCurso
         return result;
     }
 
-    private void resetCurrentIndex()
-    {
+    private void resetCurrentIndex() {
         mCurrentSelectedIndex = -1;
     }
 
-    public interface CardAdapterListener
-    {
+    public interface CardAdapterListener {
         void onRowClicked(int inputPosition);
+
         void onRowLongClicked(int inputPosition);
     }
 
-    public class LoyaltyCardListItemViewHolder extends RecyclerView.ViewHolder implements View.OnLongClickListener
-    {
+    public class LoyaltyCardListItemViewHolder extends RecyclerView.ViewHolder {
 
         public TextView mStoreField, mNoteField, mBalanceField, mExpiryField;
-        public LinearLayout mInformationContainer;
-        public ImageView mCardIcon, mStarIcon;
-        public MaterialCardView mRow;
+        public ImageView mCardIcon, mStarBackground, mStarBorder, mTickIcon;
+        public MaterialCardView mRow, mIconLayout;
+        public ConstraintLayout mStar;
         public View mDivider;
-        public RelativeLayout mThumbnailFrontContainer, mThumbnailBackContainer;
 
-        public LoyaltyCardListItemViewHolder(View inputView)
-        {
+        private int mIconBackgroundColor;
+
+        protected LoyaltyCardListItemViewHolder(View inputView, CardAdapterListener inputListener) {
             super(inputView);
             mRow = inputView.findViewById(R.id.row);
             mDivider = inputView.findViewById(R.id.info_divider);
-            mThumbnailFrontContainer = inputView.findViewById(R.id.thumbnail_front);
-            mThumbnailBackContainer = inputView.findViewById(R.id.thumbnail_back);
-            mInformationContainer = inputView.findViewById(R.id.information_container);
             mStoreField = inputView.findViewById(R.id.store);
             mNoteField = inputView.findViewById(R.id.note);
             mBalanceField = inputView.findViewById(R.id.balance);
             mExpiryField = inputView.findViewById(R.id.expiry);
+
+            mIconLayout = inputView.findViewById(R.id.icon_layout);
             mCardIcon = inputView.findViewById(R.id.thumbnail);
-            mStarIcon = inputView.findViewById(R.id.star);
-            inputView.setOnLongClickListener(this);
+            mStar = inputView.findViewById(R.id.star);
+            mStarBackground = inputView.findViewById(R.id.star_background);
+            mStarBorder = inputView.findViewById(R.id.star_border);
+            mTickIcon = inputView.findViewById(R.id.selected_thumbnail);
+            inputView.setOnLongClickListener(view -> {
+                inputListener.onRowClicked(getAdapterPosition());
+                inputView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
+                return true;
+            });
         }
 
-        @Override
-        public boolean onLongClick(View inputView)
-        {
-            mListener.onRowLongClicked(getAdapterPosition());
-            inputView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
-            return true;
+        public void setStoreField(String text) {
+            mStoreField.setText(text);
+            mStoreField.setTextSize(mSettings.getFontSizeMax(mSettings.getMediumFont()));
+            mStoreField.requestLayout();
+        }
+
+        public void setNoteField(String text) {
+            if (text == null) {
+                mNoteField.setVisibility(View.GONE);
+            } else {
+                mNoteField.setVisibility(View.VISIBLE);
+                mNoteField.setText(text);
+                mNoteField.setTextSize(mSettings.getFontSizeMax(mSettings.getSmallFont()));
+            }
+            mNoteField.requestLayout();
+        }
+
+        public void setBalanceField(BigDecimal balance, Currency balanceType) {
+            if (balance == null) {
+                mBalanceField.setVisibility(View.GONE);
+            } else {
+                int size = mSettings.getFontSizeMax(mSettings.getSmallFont());
+                int drawableSize = dpToPx((size * 24) / 14, mContext);
+                mDivider.setVisibility(View.VISIBLE);
+                mBalanceField.setVisibility(View.VISIBLE);
+                Drawable balanceIcon = mBalanceField.getCompoundDrawables()[0];
+                balanceIcon.setBounds(0, 0, drawableSize, drawableSize);
+                mBalanceField.setCompoundDrawablesRelative(balanceIcon, null, null, null);
+                if (mDarkModeEnabled) {
+                    balanceIcon.setColorFilter(BlendModeColorFilterCompat.createBlendModeColorFilterCompat(Color.WHITE, BlendModeCompat.SRC_ATOP));
+                }
+                mBalanceField.setText(Utils.formatBalance(mContext, balance, balanceType));
+                mBalanceField.setTextSize(size);
+            }
+            mBalanceField.requestLayout();
+        }
+
+        public void setExpiryField(Date expiry) {
+            if (expiry == null) {
+                mExpiryField.setVisibility(View.GONE);
+            } else {
+                int size = mSettings.getFontSizeMax(mSettings.getSmallFont());
+                int drawableSize = dpToPx((size * 24) / 14, mContext);
+                mDivider.setVisibility(View.VISIBLE);
+                mExpiryField.setVisibility(View.VISIBLE);
+                Drawable expiryIcon = mExpiryField.getCompoundDrawables()[0];
+                expiryIcon.setBounds(0, 0, drawableSize, drawableSize);
+                mExpiryField.setCompoundDrawablesRelative(expiryIcon, null, null, null);
+                if (Utils.hasExpired(expiry)) {
+                    expiryIcon.setColorFilter(BlendModeColorFilterCompat.createBlendModeColorFilterCompat(Color.RED, BlendModeCompat.SRC_ATOP));
+                    mExpiryField.setTextColor(Color.RED);
+                } else if (mDarkModeEnabled) {
+                    expiryIcon.setColorFilter(BlendModeColorFilterCompat.createBlendModeColorFilterCompat(Color.WHITE, BlendModeCompat.SRC_ATOP));
+                }
+                mExpiryField.setText(DateFormat.getDateInstance(DateFormat.LONG).format(expiry));
+                mExpiryField.setTextSize(size);
+            }
+            mExpiryField.requestLayout();
+        }
+
+        public void toggleStar(boolean enable, boolean colorByTheme) {
+            /* the below code does not work in android 5! hence the change of drawable instead
+            boolean needDarkForeground = Utils.needsDarkForeground(mIconBackgroundColor);
+            Drawable borderDrawable = mStarBorder.getDrawable().mutate();
+            Drawable backgroundDrawable = mStarBackground.getDrawable().mutate();
+            DrawableCompat.setTint(borderDrawable, needsDarkForeground ? Color.BLACK : Color.WHITE);
+            DrawableCompat.setTint(backgroundDrawable, needsDarkForeground ? Color.BLACK : Color.WHITE);
+            mStarBorder.setImageDrawable(borderDrawable);
+            mStarBackground.setImageDrawable(backgroundDrawable);
+            */
+            boolean dark = Utils.needsDarkForeground(mIconBackgroundColor);
+            if (colorByTheme) {
+                dark = !mDarkModeEnabled;
+            }
+            if (dark) {
+                mStarBorder.setImageResource(R.drawable.ic_unstarred_white);
+                mStarBackground.setImageResource(R.drawable.ic_starred_black);
+            } else {
+                mStarBorder.setImageResource(R.drawable.ic_unstarred_black);
+                mStarBackground.setImageResource(R.drawable.ic_starred_white);
+            }
+            if (enable) {
+                mStar.setVisibility(View.VISIBLE);
+            } else {
+                mStar.setVisibility(View.GONE);
+            }
+            mStarBorder.invalidate();
+            mStarBackground.invalidate();
+        }
+
+        public void setIconBackgroundColor(int color) {
+            mIconBackgroundColor = color;
+            mCardIcon.setBackgroundColor(color);
         }
     }
-}
+
+    public int dpToPx(int dp, Context mContext) {
+        Resources r = mContext.getResources();
+        int px = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, r.getDisplayMetrics());
+        return px;
+    }
+}

app/src/main/java/protect/card_locker/LoyaltyCardLockerApplication.java

@@ -1,14 +1,20 @@
 package protect.card_locker;
 
+import android.app.Application;
+
 import androidx.appcompat.app.AppCompatDelegate;
-import androidx.multidex.MultiDexApplication;
+
+import com.google.android.material.color.DynamicColors;
+
 import protect.card_locker.preferences.Settings;
 
-public class LoyaltyCardLockerApplication extends MultiDexApplication {
+public class LoyaltyCardLockerApplication extends Application {
+
+    @Override
     public void onCreate() {
         super.onCreate();
 
-        Settings settings = new Settings(getApplicationContext());
+        Settings settings = new Settings(this);
         AppCompatDelegate.setDefaultNightMode(settings.getTheme());
     }
 }

app/src/main/java/protect/card_locker/LoyaltyCardViewActivity.java

@@ -2,14 +2,16 @@ package protect.card_locker;
 
 import android.content.Intent;
 import android.content.pm.ActivityInfo;
+import android.content.res.ColorStateList;
 import android.content.res.Configuration;
+import android.database.sqlite.SQLiteDatabase;
 import android.graphics.Bitmap;
 import android.graphics.Color;
+import android.graphics.Outline;
 import android.graphics.drawable.Drawable;
 import android.os.Build;
 import android.os.Bundle;
 import android.text.TextUtils;
-import android.util.DisplayMetrics;
 import android.util.Log;
 import android.util.TypedValue;
 import android.view.GestureDetector;
@@ -17,6 +19,8 @@ import android.view.Menu;
 import android.view.MenuItem;
 import android.view.MotionEvent;
 import android.view.View;
+import android.view.ViewGroup;
+import android.view.ViewOutlineProvider;
 import android.view.ViewTreeObserver;
 import android.view.Window;
 import android.view.WindowManager;
@@ -29,8 +33,8 @@ import android.widget.Toast;
 
 import com.google.android.material.appbar.AppBarLayout;
 import com.google.android.material.bottomsheet.BottomSheetBehavior;
+import com.google.android.material.color.MaterialColors;
 import com.google.android.material.floatingactionbutton.FloatingActionButton;
-import com.google.zxing.BarcodeFormat;
 
 import java.io.UnsupportedEncodingException;
 import java.math.BigDecimal;
@@ -44,22 +48,29 @@ import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.content.res.AppCompatResources;
 import androidx.appcompat.widget.AppCompatTextView;
 import androidx.appcompat.widget.Toolbar;
+import androidx.constraintlayout.widget.ConstraintLayout;
 import androidx.constraintlayout.widget.Guideline;
+import androidx.coordinatorlayout.widget.CoordinatorLayout;
 import androidx.core.content.ContextCompat;
+import androidx.core.graphics.ColorUtils;
 import androidx.core.graphics.drawable.DrawableCompat;
+import androidx.core.widget.NestedScrollView;
 import androidx.core.widget.TextViewCompat;
+
+import protect.card_locker.async.TaskHandler;
 import protect.card_locker.preferences.Settings;
 
-public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements GestureDetector.OnGestureListener
-{
+public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements GestureDetector.OnGestureListener {
     private static final String TAG = "Catima";
 
     private GestureDetector mGestureDetector;
 
+    CoordinatorLayout coordinatorLayout;
+    ConstraintLayout mainLayout;
     TextView cardIdFieldView;
     BottomSheetBehavior behavior;
-    View bottomSheet;
-    View bottomSheetContentWrapper;
+    LinearLayout bottomSheet;
+    NestedScrollView bottomSheetContentWrapper;
     ImageView bottomSheetButton;
     TextView noteView;
     TextView groupsView;
@@ -72,10 +83,13 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
     ImageButton minimizeButton;
     View collapsingToolbarLayout;
     AppBarLayout appBarLayout;
+    ImageView iconImage;
+    Toolbar landscapeToolbar;
+
     int loyaltyCardId;
     LoyaltyCard loyaltyCard;
     boolean rotationEnabled;
-    DBHelper db;
+    SQLiteDatabase database;
     ImportURIHelper importURIHelper;
     Settings settings;
 
@@ -99,8 +113,15 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
     private ImageView[] dots;
     boolean isBarcodeSupported = true;
 
+    int bottomSheetState;
+
     static final String STATE_IMAGEINDEX = "imageIndex";
     static final String STATE_FULLSCREEN = "isFullscreen";
+    static final String STATE_BOTTOMSHEET = "bottomSheetState";
+
+    private final int HEADER_FILTER_ALPHA = 127;
+
+    final private TaskHandler mTasks = new TaskHandler();
 
     @Override
     public boolean onDown(MotionEvent e) {
@@ -182,47 +203,57 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
         IMAGE_BACK
     }
 
-    private void extractIntentFields(Intent intent)
-    {
+    private void extractIntentFields(Intent intent) {
         final Bundle b = intent.getExtras();
         loyaltyCardId = b != null ? b.getInt("id") : 0;
         Log.d(TAG, "View activity: id=" + loyaltyCardId);
     }
 
-    private Drawable getDotIcon(boolean active) {
+    private Drawable getDotIcon(boolean active, boolean darkMode) {
         Drawable unwrappedIcon = AppCompatResources.getDrawable(this, active ? R.drawable.active_dot : R.drawable.inactive_dot);
         assert unwrappedIcon != null;
         Drawable wrappedIcon = DrawableCompat.wrap(unwrappedIcon);
-        DrawableCompat.setTint(wrappedIcon, ContextCompat.getColor(getApplicationContext(), R.color.iconColor));
+        if (darkMode) {
+            DrawableCompat.setTint(wrappedIcon, Color.WHITE);
+        } else {
+            DrawableCompat.setTint(wrappedIcon, Color.BLACK);
+        }
 
         return wrappedIcon;
     }
 
-    private Drawable getIcon(int icon, boolean dark)
-    {
+    private Drawable getIcon(int icon, boolean dark) {
         Drawable unwrappedIcon = AppCompatResources.getDrawable(this, icon);
         assert unwrappedIcon != null;
         Drawable wrappedIcon = DrawableCompat.wrap(unwrappedIcon);
-        if(dark)
-        {
+        if (dark) {
             DrawableCompat.setTint(wrappedIcon, Color.BLACK);
-        }
-        else
-        {
+        } else {
             DrawableCompat.setTintList(wrappedIcon, null);
         }
 
         return wrappedIcon;
     }
 
+    private void setCenterGuideline(int zoomLevel) {
+        float scale = zoomLevel / 100f;
+
+        if (format != null && format.isSquare()) {
+            centerGuideline.setGuidelinePercent(0.75f * scale);
+        } else {
+            centerGuideline.setGuidelinePercent(0.5f * scale);
+        }
+
+    }
+
     @Override
-    protected void onCreate(Bundle savedInstanceState)
-    {
+    protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
         if (savedInstanceState != null) {
             mainImageIndex = savedInstanceState.getInt(STATE_IMAGEINDEX);
             isFullscreen = savedInstanceState.getBoolean(STATE_FULLSCREEN);
+            bottomSheetState = savedInstanceState.getInt(STATE_BOTTOMSHEET);
         }
 
         settings = new Settings(this);
@@ -231,9 +262,11 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
 
         setContentView(R.layout.loyalty_card_view_layout);
 
-        db = new DBHelper(this);
+        database = new DBHelper(this).getWritableDatabase();
         importURIHelper = new ImportURIHelper(this);
 
+        coordinatorLayout = findViewById(R.id.coordinator_layout);
+        mainLayout = findViewById(R.id.mainLayout);
         cardIdFieldView = findViewById(R.id.cardIdView);
         bottomSheet = findViewById(R.id.bottom_sheet);
         bottomSheetContentWrapper = findViewById(R.id.bottomSheetContentWrapper);
@@ -249,26 +282,29 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
         minimizeButton = findViewById(R.id.minimizeButton);
         collapsingToolbarLayout = findViewById(R.id.collapsingToolbarLayout);
         appBarLayout = findViewById(R.id.app_bar_layout);
+        iconImage = findViewById(R.id.icon_image);
+        landscapeToolbar = findViewById(R.id.toolbar_landscape);
 
         centerGuideline = findViewById(R.id.centerGuideline);
-        centerGuideline.setGuidelinePercent(0.5f);
         barcodeScaler = findViewById(R.id.barcodeScaler);
-        barcodeScaler.setProgress(100);
-        maximizeButton.setBackgroundColor(getThemeColor());
-        minimizeButton.setBackgroundColor(getThemeColor());
-        bottomSheetButton.setBackgroundColor(getThemeColor());
         barcodeScaler.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
             @Override
             public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
+                if (!fromUser) {
+                    Log.d(TAG, "non user triggered onProgressChanged, ignoring, progress is " + progress);
+                    return;
+                }
                 Log.d(TAG, "Progress is " + progress);
                 Log.d(TAG, "Max is " + barcodeScaler.getMax());
                 float scale = (float) progress / (float) barcodeScaler.getMax();
                 Log.d(TAG, "Scaling to " + scale);
 
-                if (imageTypes.get(mainImageIndex) == ImageType.BARCODE) {
-                    redrawBarcodeAfterResize();
-                }
-                centerGuideline.setGuidelinePercent(0.5f * scale);
+                loyaltyCard.zoomLevel = progress;
+                DBHelper.updateLoyaltyCardZoomLevel(database, loyaltyCardId, loyaltyCard.zoomLevel);
+
+                setCenterGuideline(loyaltyCard.zoomLevel);
+
+                drawMainImage(mainImageIndex, true);
             }
 
             @Override
@@ -304,24 +340,12 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
         behavior.addBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
             @Override
             public void onStateChanged(@NonNull View bottomSheet, int newState) {
-                if (newState == BottomSheetBehavior.STATE_DRAGGING) {
-                    editButton.hide();
-                } else if (newState == BottomSheetBehavior.STATE_EXPANDED) {
-                    bottomSheetButton.setImageResource(R.drawable.ic_baseline_arrow_drop_down_24);
-                    editButton.hide();
-                } else if (newState == BottomSheetBehavior.STATE_COLLAPSED) {
-                    bottomSheetButton.setImageResource(R.drawable.ic_baseline_arrow_drop_up_24);
-                    if (!isFullscreen) {
-                        editButton.show();
-                    }
-
-                    // Scroll bottomsheet content back to top
-                    bottomSheetContentWrapper.setScrollY(0);
-                }
+                changeUiToBottomSheetState(newState);
             }
 
             @Override
-            public void onSlide(@NonNull View bottomSheet, float slideOffset) { }
+            public void onSlide(@NonNull View bottomSheet, float slideOffset) {
+            }
         });
 
         bottomSheetButton.setOnClickListener(v -> {
@@ -332,22 +356,18 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
             }
         });
 
-        // Fix bottom sheet content sizing
-        ViewTreeObserver viewTreeObserver = bottomSheet.getViewTreeObserver();
-        viewTreeObserver.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
+        appBarLayout.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
             @Override
-            public void onGlobalLayout() {
-                bottomSheet.getViewTreeObserver().removeOnGlobalLayoutListener(this);
-                DisplayMetrics displayMetrics = getResources().getDisplayMetrics();
-                int height = displayMetrics.heightPixels;
-                int maxHeight = height - appBarLayout.getHeight() - bottomSheetButton.getHeight();
-                Log.d(TAG, "Button sheet should be " + maxHeight + " pixels high");
-                bottomSheetContentWrapper.setLayoutParams(
-                        new LinearLayout.LayoutParams(
-                                LinearLayout.LayoutParams.MATCH_PARENT,
-                                maxHeight
-                        )
-                );
+            public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {
+                adjustLayoutHeights();
+            }
+        });
+
+        appBarLayout.setOutlineProvider(new ViewOutlineProvider() {
+            @Override
+            public void getOutline(View view, Outline outline) {
+                ViewOutlineProvider.BACKGROUND.getOutline(view, outline);
+                outline.setAlpha(0f);
             }
         });
 
@@ -356,9 +376,59 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
         mainImage.setOnTouchListener(gestureTouchListener);
     }
 
+    private void changeUiToBottomSheetState(int newState) {
+        if (newState == BottomSheetBehavior.STATE_DRAGGING) {
+            editButton.hide();
+        } else if (newState == BottomSheetBehavior.STATE_EXPANDED) {
+            bottomSheetButton.setImageResource(R.drawable.ic_baseline_arrow_drop_down_24);
+            bottomSheetButton.setContentDescription(getString(R.string.hideMoreInfo));
+            mainLayout.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS);
+            editButton.hide();
+        } else if (newState == BottomSheetBehavior.STATE_COLLAPSED) {
+            bottomSheetButton.setImageResource(R.drawable.ic_baseline_arrow_drop_up_24);
+            bottomSheetButton.setContentDescription(getString(R.string.showMoreInfo));
+            mainLayout.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_AUTO);
+            if (!isFullscreen) {
+                editButton.show();
+            }
+
+            // Scroll bottomsheet content back to top
+            bottomSheetContentWrapper.setScrollY(0);
+        }
+        bottomSheetState = newState;
+    }
+
+    private void adjustLayoutHeights() {
+        // use getLayoutParams instead of getHeight when heights are pre-determined in xml! getHeight could return 0 if a View is not inflated
+        if (iconImage.getLayoutParams().height != appBarLayout.getHeight()) {
+            Log.d("adjustLayoutHeights", "setting imageIcon height from: " + iconImage.getLayoutParams().height + " to: " + appBarLayout.getHeight());
+            iconImage.setLayoutParams(new CoordinatorLayout.LayoutParams(
+                    CoordinatorLayout.LayoutParams.MATCH_PARENT, appBarLayout.getHeight())
+            );
+        }
+        int bottomSheetHeight = getResources().getDisplayMetrics().heightPixels - appBarLayout.getHeight() - bottomSheetButton.getLayoutParams().height;
+        ViewGroup.LayoutParams params = bottomSheetContentWrapper.getLayoutParams();
+        if (params.height != bottomSheetHeight || params.width != LinearLayout.LayoutParams.MATCH_PARENT) {
+            // XXX android 5 - 9 has so much quirks with setting bottomSheetContent height
+            // just invalidate the wrapper works on 10 onward
+            // bottomSheetContentWrapper.invalidate();
+            // The below worked on android 5 but not 6, reloading the card then it breaks again on 6, entirely random :(
+            // for (int i = 0; i < bottomSheetContentWrapper.getChildCount(); i++) {
+            //     bottomSheetContentWrapper.getChildAt(i).invalidate();
+            // }
+            // since it's basically allergic to getting enlarged then shrunk again, and setting it at all when fullscreen makes no sense
+            if (!isFullscreen) {
+                Log.d("adjustLayoutHeights", "setting bottomSheet height from: " + params.height + " to: " + bottomSheetHeight);
+                bottomSheetContentWrapper.setLayoutParams(
+                        new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, bottomSheetHeight)
+                );
+            }
+        }
+    }
+
+
     @Override
-    public void onNewIntent(Intent intent)
-    {
+    public void onNewIntent(Intent intent) {
         super.onNewIntent(intent);
 
         Log.i(TAG, "Received new intent");
@@ -369,13 +439,13 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
     public void onSaveInstanceState(Bundle savedInstanceState) {
         savedInstanceState.putInt(STATE_IMAGEINDEX, mainImageIndex);
         savedInstanceState.putBoolean(STATE_FULLSCREEN, isFullscreen);
+        savedInstanceState.putInt(STATE_BOTTOMSHEET, bottomSheetState);
         super.onSaveInstanceState(savedInstanceState);
     }
 
 
     @Override
-    public void onResume()
-    {
+    public void onResume() {
         super.onResume();
 
         Log.i(TAG, "To view card: " + loyaltyCardId);
@@ -384,12 +454,10 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
         // '1' is the brightest. We attempt to maximize the brightness
         // to help barcode readers scan the barcode.
         Window window = getWindow();
-        if(window != null)
-        {
+        if (window != null) {
             WindowManager.LayoutParams attributes = window.getAttributes();
 
-            if (settings.useMaxBrightnessDisplayingBarcode())
-            {
+            if (settings.useMaxBrightnessDisplayingBarcode()) {
                 attributes.screenBrightness = 1F;
             }
 
@@ -398,16 +466,15 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
             }
 
             if (settings.getDisableLockscreenWhileViewingCard()) {
-                window.addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD|
+                window.addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD |
                         WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
             }
 
             window.setAttributes(attributes);
         }
 
-        loyaltyCard = db.getLoyaltyCard(loyaltyCardId);
-        if(loyaltyCard == null)
-        {
+        loyaltyCard = DBHelper.getLoyaltyCard(database, loyaltyCardId);
+        if (loyaltyCard == null) {
             Log.w(TAG, "Could not lookup loyalty card " + loyaltyCardId);
             Toast.makeText(this, R.string.noCardExistsError, Toast.LENGTH_LONG).show();
             finish();
@@ -425,20 +492,17 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
                 settings.getFontSizeMin(settings.getLargeFont()), settings.getFontSizeMax(settings.getLargeFont()),
                 1, TypedValue.COMPLEX_UNIT_SP);
 
-        if(loyaltyCard.note.length() > 0)
-        {
+        if (loyaltyCard.note.length() > 0) {
             noteView.setVisibility(View.VISIBLE);
             noteView.setText(loyaltyCard.note);
             noteView.setTextSize(settings.getFontSizeMax(settings.getMediumFont()));
-        }
-        else
-        {
+        } else {
             noteView.setVisibility(View.GONE);
         }
 
-        List<Group> loyaltyCardGroups = db.getLoyaltyCardGroups(loyaltyCardId);
+        List<Group> loyaltyCardGroups = DBHelper.getLoyaltyCardGroups(database, loyaltyCardId);
 
-        if(loyaltyCardGroups.size() > 0) {
+        if (loyaltyCardGroups.size() > 0) {
             List<String> groupNames = new ArrayList<>();
             for (Group group : loyaltyCardGroups) {
                 groupNames.add(group._id);
@@ -447,35 +511,29 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
             groupsView.setVisibility(View.VISIBLE);
             groupsView.setText(getString(R.string.groupsList, TextUtils.join(", ", groupNames)));
             groupsView.setTextSize(settings.getFontSizeMax(settings.getMediumFont()));
-        }
-        else
-        {
+        } else {
             groupsView.setVisibility(View.GONE);
         }
 
-        if(!loyaltyCard.balance.equals(new BigDecimal(0))) {
+        if (!loyaltyCard.balance.equals(new BigDecimal(0))) {
             balanceView.setVisibility(View.VISIBLE);
             balanceView.setText(getString(R.string.balanceSentence, Utils.formatBalance(this, loyaltyCard.balance, loyaltyCard.balanceType)));
             balanceView.setTextSize(settings.getFontSizeMax(settings.getMediumFont()));
-        }
-        else
-        {
+        } else {
             balanceView.setVisibility(View.GONE);
         }
 
-        if(loyaltyCard.expiry != null) {
+        if (loyaltyCard.expiry != null) {
             expiryView.setVisibility(View.VISIBLE);
 
             int expiryString = R.string.expiryStateSentence;
-            if(Utils.hasExpired(loyaltyCard.expiry)) {
+            if (Utils.hasExpired(loyaltyCard.expiry)) {
                 expiryString = R.string.expiryStateSentenceExpired;
-                expiryView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.alert));
+                expiryView.setTextColor(Color.RED);
             }
             expiryView.setText(getString(expiryString, DateFormat.getDateInstance(DateFormat.LONG).format(loyaltyCard.expiry)));
             expiryView.setTextSize(settings.getFontSizeMax(settings.getMediumFont()));
-        }
-        else
-        {
+        } else {
             expiryView.setVisibility(View.GONE);
         }
         expiryView.setTag(loyaltyCard.expiry);
@@ -494,44 +552,74 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
                 TypedValue.COMPLEX_UNIT_DIP);
 
         int backgroundHeaderColor;
-        if(loyaltyCard.headerColor != null)
-        {
+        if (loyaltyCard.headerColor != null) {
             backgroundHeaderColor = loyaltyCard.headerColor;
-        }
-        else
-        {
+        } else {
             backgroundHeaderColor = LetterBitmap.getDefaultColor(this, loyaltyCard.store);
         }
 
-        collapsingToolbarLayout.setBackgroundColor(backgroundHeaderColor);
-        appBarLayout.setBackgroundColor(backgroundHeaderColor);
-
         int textColor;
-        if(Utils.needsDarkForeground(backgroundHeaderColor))
-        {
+        if (Utils.needsDarkForeground(backgroundHeaderColor)) {
             textColor = Color.BLACK;
-        }
-        else
-        {
+        } else {
             textColor = Color.WHITE;
         }
         storeName.setTextColor(textColor);
-        ((Toolbar) findViewById(R.id.toolbar_landscape)).setTitleTextColor(textColor);
+        landscapeToolbar.setTitleTextColor(textColor);
+
+        // Also apply colours to UI elements
+        int darkenedColor = ColorUtils.blendARGB(backgroundHeaderColor, Color.BLACK, 0.1f);
+        barcodeScaler.setProgressTintList(ColorStateList.valueOf(darkenedColor));
+        barcodeScaler.setThumbTintList(ColorStateList.valueOf(darkenedColor));
+        maximizeButton.setBackgroundColor(darkenedColor);
+        minimizeButton.setBackgroundColor(darkenedColor);
+        bottomSheetButton.setBackgroundColor(darkenedColor);
+        maximizeButton.setColorFilter(textColor);
+        minimizeButton.setColorFilter(textColor);
+        bottomSheetButton.setColorFilter(textColor);
+        int complementaryColor = Utils.getComplementaryColor(darkenedColor);
+        editButton.setBackgroundTintList(ColorStateList.valueOf(complementaryColor));
+        Drawable editButtonIcon = editButton.getDrawable();
+        editButtonIcon.mutate();
+        int colorPrimary = MaterialColors.getColor(this, R.attr.colorPrimary, ContextCompat.getColor(this, R.color.md_theme_light_primary));
+        int colorOnPrimary = MaterialColors.getColor(this, R.attr.colorOnPrimary, ContextCompat.getColor(this, R.color.md_theme_light_onPrimary));
+        boolean darkMode = Utils.isDarkModeEnabled(this);
+        if (Utils.needsDarkForeground(complementaryColor)) {
+            editButtonIcon.setTint(darkMode ? colorOnPrimary : colorPrimary);
+        } else {
+            editButtonIcon.setTint(darkMode ? colorPrimary : colorOnPrimary);
+        }
+        editButton.setImageDrawable(editButtonIcon);
+
+        Bitmap icon = Utils.retrieveCardImage(this, loyaltyCard.id, ImageLocationType.icon);
+        if (icon != null) {
+            int backgroundAlphaColor = Utils.needsDarkForeground(backgroundHeaderColor) ? Color.WHITE : Color.BLACK;
+            Log.d("onResume", "setting icon image");
+            iconImage.setImageBitmap(icon);
+            int backgroundWithAlpha = Color.argb(HEADER_FILTER_ALPHA, Color.red(backgroundAlphaColor), Color.green(backgroundAlphaColor), Color.blue(backgroundAlphaColor));
+            // for images that has alpha
+            appBarLayout.setBackgroundColor(backgroundWithAlpha);
+        } else {
+            Bitmap plain = Bitmap.createBitmap(new int[]{backgroundHeaderColor}, 1, 1, Bitmap.Config.ARGB_8888);
+            iconImage.setImageBitmap(plain);
+            appBarLayout.setBackgroundColor(Color.TRANSPARENT);
+        }
 
         // If the background is very bright, we should use dark icons
         backgroundNeedsDarkIcons = Utils.needsDarkForeground(backgroundHeaderColor);
         ActionBar actionBar = getSupportActionBar();
-        if(actionBar != null)
-        {
+        if (actionBar != null) {
             actionBar.setHomeAsUpIndicator(getIcon(R.drawable.ic_arrow_back_white, backgroundNeedsDarkIcons));
         }
 
         // Make notification area light if dark icons are needed
-        if(Build.VERSION.SDK_INT >= 23)
-        {
+        if (Build.VERSION.SDK_INT >= 23) {
             window.getDecorView().setSystemUiVisibility(backgroundNeedsDarkIcons ? View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR : 0);
+            window.setStatusBarColor(Color.TRANSPARENT);
+        } else {
+            // Darken statusbar if icons won't be visible otherwise
+            window.setStatusBarColor(backgroundNeedsDarkIcons ? ColorUtils.blendARGB(backgroundHeaderColor, Color.BLACK, 0.15f) : Color.TRANSPARENT);
         }
-        window.setStatusBarColor(Color.TRANSPARENT);
 
         // Set shadow colour of store text so even same color on same color would be readable
         storeName.setShadowLayer(1, 1, 1, backgroundNeedsDarkIcons ? Color.BLACK : Color.WHITE);
@@ -550,13 +638,12 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
             imageTypes.add(ImageType.BARCODE);
         }
 
-        frontImageBitmap = Utils.retrieveCardImage(this, loyaltyCard.id, true);
-        backImageBitmap = Utils.retrieveCardImage(this, loyaltyCard.id, false);
-
+        frontImageBitmap = Utils.retrieveCardImage(this, loyaltyCard.id, ImageLocationType.front);
         if (frontImageBitmap != null) {
             imageTypes.add(ImageType.IMAGE_FRONT);
         }
 
+        backImageBitmap = Utils.retrieveCardImage(this, loyaltyCard.id, ImageLocationType.back);
         if (backImageBitmap != null) {
             imageTypes.add(ImageType.IMAGE_BACK);
         }
@@ -567,7 +654,7 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
 
             for (int i = 0; i < imageTypes.size(); i++) {
                 dots[i] = new ImageView(this);
-                dots[i].setImageDrawable(getDotIcon(false));
+                dots[i].setImageDrawable(getDotIcon(false, darkMode));
 
                 LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
                 params.setMargins(8, 0, 8, 0);
@@ -580,13 +667,15 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
 
         setFullscreen(isFullscreen);
 
-        db.updateLoyaltyCardLastUsed(loyaltyCard.id);
+        // restore bottomSheet UI states from changing orientation
+        changeUiToBottomSheetState(bottomSheetState);
+
+        DBHelper.updateLoyaltyCardLastUsed(database, loyaltyCard.id);
     }
 
     @Override
     public void onBackPressed() {
-        if (isFullscreen)
-        {
+        if (isFullscreen) {
             setFullscreen(false);
             return;
         }
@@ -595,20 +684,18 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
     }
 
     @Override
-    public boolean onCreateOptionsMenu(Menu menu)
-    {
+    public boolean onCreateOptionsMenu(Menu menu) {
         getMenuInflater().inflate(R.menu.card_view_menu, menu);
 
         // Always calculate lockscreen icon, it may need a black color
         boolean lockBarcodeScreenOrientation = settings.getLockBarcodeScreenOrientation();
         MenuItem item = menu.findItem(R.id.action_lock_unlock);
         setOrientatonLock(item, lockBarcodeScreenOrientation);
-        if(lockBarcodeScreenOrientation)
-        {
+        if (lockBarcodeScreenOrientation) {
             item.setVisible(false);
         }
 
-        loyaltyCard = db.getLoyaltyCard(loyaltyCardId);
+        loyaltyCard = DBHelper.getLoyaltyCard(database, loyaltyCardId);
         starred = loyaltyCard.starStatus != 0;
 
         menu.findItem(R.id.action_share).setIcon(getIcon(R.drawable.ic_share_white, backgroundNeedsDarkIcons));
@@ -623,8 +710,7 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
         if (starred) {
             menu.findItem(R.id.action_star_unstar).setIcon(getIcon(R.drawable.ic_starred_white, backgroundNeedsDarkIcons));
             menu.findItem(R.id.action_star_unstar).setTitle(R.string.unstar);
-        }
-        else {
+        } else {
             menu.findItem(R.id.action_star_unstar).setIcon(getIcon(R.drawable.ic_unstarred_white, backgroundNeedsDarkIcons));
             menu.findItem(R.id.action_star_unstar).setTitle(R.string.star);
         }
@@ -632,12 +718,10 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
     }
 
     @Override
-    public boolean onOptionsItemSelected(MenuItem item)
-    {
+    public boolean onOptionsItemSelected(MenuItem item) {
         int id = item.getItemId();
 
-        switch(id)
-        {
+        switch (id) {
             case android.R.id.home:
                 finish();
                 break;
@@ -652,12 +736,9 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
                 return true;
 
             case R.id.action_lock_unlock:
-                if(rotationEnabled)
-                {
+                if (rotationEnabled) {
                     setOrientatonLock(item, true);
-                }
-                else
-                {
+                } else {
                     setOrientatonLock(item, false);
                 }
                 rotationEnabled = !rotationEnabled;
@@ -665,7 +746,7 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
 
             case R.id.action_star_unstar:
                 starred = !starred;
-                db.updateLoyaltyCardStarStatus(loyaltyCardId, starred ? 1 : 0);
+                DBHelper.updateLoyaltyCardStarStatus(database, loyaltyCardId, starred ? 1 : 0);
                 invalidateOptionsMenu();
                 return true;
         }
@@ -673,10 +754,8 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
         return super.onOptionsItemSelected(item);
     }
 
-    private void setupOrientation()
-    {
+    private void setupOrientation() {
         Toolbar portraitToolbar = findViewById(R.id.toolbar);
-        Toolbar landscapeToolbar = findViewById(R.id.toolbar_landscape);
 
         int orientation = getResources().getConfiguration().orientation;
         if (orientation == Configuration.ORIENTATION_LANDSCAPE) {
@@ -702,51 +781,44 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
         }
 
         ActionBar actionBar = getSupportActionBar();
-        if(actionBar != null)
-        {
+        if (actionBar != null) {
             actionBar.setDisplayHomeAsUpEnabled(true);
         }
     }
 
-    private void setOrientatonLock(MenuItem item, boolean lock)
-    {
-        if(lock)
-        {
+    private void setOrientatonLock(MenuItem item, boolean lock) {
+        if (lock) {
 
             item.setIcon(getIcon(R.drawable.ic_lock_outline_white_24dp, backgroundNeedsDarkIcons));
             item.setTitle(R.string.unlockScreen);
             setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_NOSENSOR);
-        }
-        else
-        {
+        } else {
             item.setIcon(getIcon(R.drawable.ic_lock_open_white_24dp, backgroundNeedsDarkIcons));
             item.setTitle(R.string.lockScreen);
             setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
         }
     }
 
-    private void makeBottomSheetVisibleIfUseful()
-    {
+    private void makeBottomSheetVisibleIfUseful() {
         if (noteView.getVisibility() == View.VISIBLE || groupsView.getVisibility() == View.VISIBLE || balanceView.getVisibility() == View.VISIBLE || expiryView.getVisibility() == View.VISIBLE) {
             bottomSheet.setVisibility(View.VISIBLE);
-        }
-        else
-        {
+        } else {
             bottomSheet.setVisibility(View.GONE);
         }
     }
 
     private void drawBarcode() {
+        mTasks.flushTaskList(TaskHandler.TYPE.BARCODE, true, false, false);
         if (format != null) {
-            new BarcodeImageWriterTask(
+            BarcodeImageWriterTask barcodeWriter = new BarcodeImageWriterTask(
                     getApplicationContext(),
                     mainImage,
                     barcodeIdString != null ? barcodeIdString : cardIdString,
                     format,
                     null,
                     false,
-                    null)
-                    .execute();
+                    null);
+            mTasks.executeTask(TaskHandler.TYPE.BARCODE, barcodeWriter);
         }
     }
 
@@ -762,7 +834,7 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
                             drawBarcode();
                         }
                     });
-        };
+        }
     }
 
     private void drawMainImage(int index, boolean waitForResize) {
@@ -772,8 +844,9 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
         }
 
         if (dots != null) {
+            boolean darkMode = Utils.isDarkModeEnabled(getApplicationContext());
             for (int i = 0; i < dots.length; i++) {
-                dots[i].setImageDrawable(getDotIcon(i == index));
+                dots[i].setImageDrawable(getDotIcon(i == index, darkMode));
             }
         }
 
@@ -786,12 +859,15 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
                 drawBarcode();
             }
             mainImage.setBackgroundColor(Color.WHITE);
+            mainImage.setContentDescription(getString(R.string.barcodeImageDescriptionWithType, format.prettyName()));
         } else if (wantedImageType == ImageType.IMAGE_FRONT) {
             mainImage.setImageBitmap(frontImageBitmap);
             mainImage.setBackgroundColor(Color.TRANSPARENT);
+            mainImage.setContentDescription(getString(R.string.frontImageDescription));
         } else if (wantedImageType == ImageType.IMAGE_BACK) {
             mainImage.setImageBitmap(backImageBitmap);
             mainImage.setBackgroundColor(Color.TRANSPARENT);
+            mainImage.setContentDescription(getString(R.string.backImageDescription));
         } else {
             throw new IllegalArgumentException("Unknown image type: " + wantedImageType);
         }
@@ -817,11 +893,12 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
 
     /**
      * When enabled, hides the status bar and moves the barcode to the top of the screen.
-     *
+     * <p>
      * The purpose of this function is to make sure the barcode can be scanned from the phone
      * by machines which offer no space to insert the complete device.
      */
     private void setFullscreen(boolean enabled) {
+        isFullscreen = enabled;
         ActionBar actionBar = getSupportActionBar();
 
         if (enabled && !imageTypes.isEmpty()) {
@@ -829,14 +906,16 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
 
             drawMainImage(mainImageIndex, true);
 
+            barcodeScaler.setProgress(loyaltyCard.zoomLevel);
+            setCenterGuideline(loyaltyCard.zoomLevel);
+
             // Hide maximize and show minimize button and scaler
             maximizeButton.setVisibility(View.GONE);
             minimizeButton.setVisibility(View.VISIBLE);
             barcodeScaler.setVisibility(View.VISIBLE);
 
             // Hide actionbar
-            if(actionBar != null)
-            {
+            if (actionBar != null) {
                 actionBar.hide();
             }
 
@@ -847,7 +926,7 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
             // Don't ask me why...
             appBarLayout.setVisibility(View.INVISIBLE);
             collapsingToolbarLayout.setVisibility(View.GONE);
-            findViewById(R.id.toolbar_landscape).setVisibility(View.GONE);
+            landscapeToolbar.setVisibility(View.GONE);
 
             // Hide other UI elements
             cardIdFieldView.setVisibility(View.GONE);
@@ -855,19 +934,20 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
             behavior.setState(BottomSheetBehavior.STATE_COLLAPSED);
             editButton.hide();
 
+            // android 5-9, avoid padding growing on top of bottomSheet
+            coordinatorLayout.removeView(bottomSheet);
+
             // Set Android to fullscreen mode
             getWindow().getDecorView().setSystemUiVisibility(
                     getWindow().getDecorView().getSystemUiVisibility()
                             | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
                             | View.SYSTEM_UI_FLAG_FULLSCREEN
             );
-        }
-        else
-        {
+        } else {
             Log.d(TAG, "Move out of fullscreen");
 
             // Reset center guideline
-            barcodeScaler.setProgress(100);
+            setCenterGuideline(100);
 
             drawMainImage(mainImageIndex, true);
 
@@ -878,16 +958,13 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
             barcodeScaler.setVisibility(View.GONE);
 
             // Show actionbar
-            if(actionBar != null)
-            {
+            if (actionBar != null) {
                 actionBar.show();
             }
 
             // Show appropriate toolbar
             // And restore 24dp paddingTop for appBarLayout
             appBarLayout.setVisibility(View.VISIBLE);
-            DisplayMetrics metrics = new DisplayMetrics();
-            getWindowManager().getDefaultDisplay().getMetrics(metrics);
             setupOrientation();
 
             // Show other UI elements
@@ -901,8 +978,13 @@ public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements
                             & ~View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
                             & ~View.SYSTEM_UI_FLAG_FULLSCREEN
             );
+
+            // android 5-9, avoid padding growing on top of bottomSheet
+            if (bottomSheet.getParent() != coordinatorLayout) {
+                coordinatorLayout.addView(bottomSheet);
+            }
         }
 
-        isFullscreen = enabled;
+        Log.d("setFullScreen", "Is full screen enabled? " + enabled + " Zoom Level = " + barcodeScaler.getProgress());
     }
 }

app/src/main/java/protect/card_locker/MainActivity.java

@@ -1,14 +1,14 @@
 package protect.card_locker;
 
+import android.app.Activity;
 import android.app.SearchManager;
 import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
-import android.content.res.Configuration;
-import android.database.Cursor;
-import android.net.Uri;
+import android.database.CursorIndexOutOfBoundsException;
+import android.database.sqlite.SQLiteDatabase;
 import android.os.Bundle;
 import android.util.Log;
 import android.view.GestureDetector;
@@ -19,6 +19,15 @@ import android.view.View;
 import android.widget.CheckBox;
 import android.widget.Toast;
 
+import androidx.activity.result.ActivityResultLauncher;
+import androidx.activity.result.contract.ActivityResultContracts;
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.view.ActionMode;
+import androidx.appcompat.widget.SearchView;
+import androidx.appcompat.widget.Toolbar;
+import androidx.core.splashscreen.SplashScreen;
+import androidx.recyclerview.widget.RecyclerView;
+
 import com.google.android.material.floatingactionbutton.FloatingActionButton;
 import com.google.android.material.tabs.TabLayout;
 
@@ -27,24 +36,18 @@ import java.util.Arrays;
 import java.util.List;
 import java.util.concurrent.atomic.AtomicInteger;
 
-import androidx.appcompat.app.AlertDialog;
-import androidx.appcompat.view.ActionMode;
-import androidx.appcompat.widget.SearchView;
-import androidx.appcompat.widget.Toolbar;
-import androidx.core.app.ActivityCompat;
-import androidx.core.splashscreen.SplashScreen;
-import androidx.recyclerview.widget.RecyclerView;
 import protect.card_locker.preferences.SettingsActivity;
 
-public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCardCursorAdapter.CardAdapterListener, GestureDetector.OnGestureListener
-{
+public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCardCursorAdapter.CardAdapterListener, GestureDetector.OnGestureListener {
     private static final String TAG = "Catima";
+    public static final String RESTART_ACTIVITY_INTENT = "restart_activity_intent";
 
-    private final DBHelper mDB = new DBHelper(this);
+    private SQLiteDatabase mDatabase;
     private LoyaltyCardCursorAdapter mAdapter;
     private ActionMode mCurrentActionMode;
-    private Menu mMenu;
+    private SearchView mSearchView;
     private GestureDetector mGestureDetector;
+    private int mLoyaltyCardCount = 0;
     protected String mFilter = "";
     protected Object mGroup = null;
     protected DBHelper.LoyaltyCardOrder mOrder = DBHelper.LoyaltyCardOrder.Alpha;
@@ -55,8 +58,10 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
     private View mNoMatchingCardsText;
     private View mNoGroupCardsText;
 
-    private ActionMode.Callback mCurrentActionModeCallback = new ActionMode.Callback()
-    {
+    private ActivityResultLauncher<Intent> mBarcodeScannerLauncher;
+    private ActivityResultLauncher<Intent> mSettingsLauncher;
+
+    private ActionMode.Callback mCurrentActionModeCallback = new ActionMode.Callback() {
         @Override
         public boolean onCreateActionMode(ActionMode inputMode, Menu inputMenu) {
             inputMode.getMenuInflater().inflate(R.menu.card_longclick_menu, inputMenu);
@@ -64,8 +69,7 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
         }
 
         @Override
-        public boolean onPrepareActionMode(ActionMode inputMode, Menu inputMenu)
-        {
+        public boolean onPrepareActionMode(ActionMode inputMode, Menu inputMenu) {
             return false;
         }
 
@@ -109,7 +113,7 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
                 }
                 inputMode.finish();
                 return true;
-            } else if(inputItem.getItemId() == R.id.action_edit) {
+            } else if (inputItem.getItemId() == R.id.action_edit) {
                 if (mAdapter.getSelectedItemCount() != 1) {
                     throw new IllegalArgumentException("Cannot edit more than 1 card at a time");
                 }
@@ -122,7 +126,7 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
                 startActivity(intent);
                 inputMode.finish();
                 return true;
-            } else if(inputItem.getItemId() == R.id.action_delete) {
+            } else if (inputItem.getItemId() == R.id.action_delete) {
                 AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
                 // The following may seem weird, but it is necessary to give translators enough flexibility.
                 // For example, in Russian, Android's plural quantity "one" actually refers to "any number ending on 1 but not ending in 11".
@@ -137,12 +141,10 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
                 }
 
                 builder.setPositiveButton(R.string.confirm, (dialog, which) -> {
-                    DBHelper db = new DBHelper(MainActivity.this);
-
                     for (LoyaltyCard loyaltyCard : mAdapter.getSelectedItems()) {
                         Log.e(TAG, "Deleting card: " + loyaltyCard.id);
 
-                        db.deleteLoyaltyCard(loyaltyCard.id);
+                        DBHelper.deleteLoyaltyCard(mDatabase, MainActivity.this, loyaltyCard.id);
 
                         ShortcutHelper.removeShortcut(MainActivity.this, loyaltyCard.id);
                     }
@@ -150,7 +152,7 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
                     TabLayout.Tab tab = ((TabLayout) findViewById(R.id.groups)).getTabAt(selectedTab);
                     mGroup = tab != null ? tab.getTag() : null;
 
-                    updateLoyaltyCardList();
+                    updateLoyaltyCardList(true);
 
                     dialog.dismiss();
                 });
@@ -165,39 +167,33 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
         }
 
         @Override
-        public void onDestroyActionMode(ActionMode inputMode)
-        {
+        public void onDestroyActionMode(ActionMode inputMode) {
             mAdapter.clearSelections();
             mCurrentActionMode = null;
-            mCardList.post(new Runnable()
-            {
-                @Override
-                public void run()
-                {
-                    mAdapter.resetAnimationIndex();
-                }
-            });
         }
     };
 
     @Override
-    protected void onCreate(Bundle inputSavedInstanceState)
-    {
+    protected void onCreate(Bundle inputSavedInstanceState) {
         super.onCreate(inputSavedInstanceState);
         SplashScreen.installSplashScreen(this);
         setTitle(R.string.app_name);
+        // XXX color patching has to be done again after setting splash screen
+        Utils.patchColors(this);
         setContentView(R.layout.main_activity);
         Toolbar toolbar = findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);
 
+        mDatabase = new DBHelper(this).getWritableDatabase();
+
         TabLayout groupsTabLayout = findViewById(R.id.groups);
         groupsTabLayout.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
             @Override
             public void onTabSelected(TabLayout.Tab tab) {
                 selectedTab = tab.getPosition();
+                Log.d("onTabSelected", "Tab Position " + tab.getPosition());
                 mGroup = tab.getTag();
-                updateLoyaltyCardList();
-
+                updateLoyaltyCardList(false);
                 // Store active tab in Shared Preference to restore next app launch
                 SharedPreferences activeTabPref = getApplicationContext().getSharedPreferences(
                         getString(R.string.sharedpreference_active_tab),
@@ -230,13 +226,14 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
         mHelpText.setOnTouchListener(gestureTouchListener);
         mNoMatchingCardsText.setOnTouchListener(gestureTouchListener);
         mCardList.setOnTouchListener(gestureTouchListener);
+        mNoGroupCardsText.setOnTouchListener(gestureTouchListener);
 
         mAdapter = new LoyaltyCardCursorAdapter(this, null, this);
         mCardList.setAdapter(mAdapter);
         registerForContextMenu(mCardList);
 
         mGroup = null;
-        updateLoyaltyCardList();
+        updateLoyaltyCardList(true);
 
         /*
          * This was added for Huawei, but Huawei is just too much of a fucking pain.
@@ -268,27 +265,46 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
                     .show();
         }
          */
+
+        mBarcodeScannerLauncher = registerForActivityResult(new ActivityResultContracts.StartActivityForResult(), result -> {
+            Intent intent = result.getData();
+            BarcodeValues barcodeValues = Utils.parseSetBarcodeActivityResult(Utils.BARCODE_SCAN, result.getResultCode(), intent, this);
+
+            if (!barcodeValues.isEmpty()) {
+                Intent newIntent = new Intent(getApplicationContext(), LoyaltyCardEditActivity.class);
+                Bundle newBundle = new Bundle();
+                newBundle.putString(LoyaltyCardEditActivity.BUNDLE_BARCODETYPE, barcodeValues.format());
+                newBundle.putString(LoyaltyCardEditActivity.BUNDLE_CARDID, barcodeValues.content());
+                Bundle inputBundle = intent.getExtras();
+                if (inputBundle != null && inputBundle.getString(LoyaltyCardEditActivity.BUNDLE_ADDGROUP) != null) {
+                    newBundle.putString(LoyaltyCardEditActivity.BUNDLE_ADDGROUP, inputBundle.getString(LoyaltyCardEditActivity.BUNDLE_ADDGROUP));
+                }
+                newIntent.putExtras(newBundle);
+                startActivity(newIntent);
+            }
+        });
+
+        mSettingsLauncher = registerForActivityResult(new ActivityResultContracts.StartActivityForResult(), result -> {
+            if (result.getResultCode() == Activity.RESULT_OK) {
+                Intent intent = result.getData();
+                if (intent != null && intent.getBooleanExtra(RESTART_ACTIVITY_INTENT, false)) {
+                    recreate();
+                }
+            }
+        });
     }
 
     @Override
-    protected void onResume()
-    {
+    protected void onResume() {
         super.onResume();
 
-        if(mCurrentActionMode != null)
-        {
+        if (mCurrentActionMode != null) {
             mAdapter.clearSelections();
             mCurrentActionMode.finish();
         }
 
-        if (mMenu != null)
-        {
-            SearchView searchView = (SearchView) mMenu.findItem(R.id.action_search).getActionView();
-
-            if (!searchView.isIconified())
-            {
-                mFilter = searchView.getQuery().toString();
-            }
+        if (mSearchView != null && !mSearchView.isIconified()) {
+            mFilter = mSearchView.getQuery().toString();
         }
 
         // Start of active tab logic
@@ -306,7 +322,8 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
         try {
             mOrder = DBHelper.LoyaltyCardOrder.valueOf(sortPref.getString(getString(R.string.sharedpreference_sort_order), null));
             mOrderDirection = DBHelper.LoyaltyCardOrderDirection.valueOf(sortPref.getString(getString(R.string.sharedpreference_sort_direction), null));
-        } catch (IllegalArgumentException | NullPointerException ignored) {}
+        } catch (IllegalArgumentException | NullPointerException ignored) {
+        }
 
         mGroup = null;
 
@@ -320,7 +337,7 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
             assert tab != null;
             mGroup = tab.getTag();
         }
-        updateLoyaltyCardList();
+        updateLoyaltyCardList(true);
         // End of active tab logic
 
         FloatingActionButton addButton = findViewById(R.id.fabAdd);
@@ -331,82 +348,56 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
                 bundle.putString(LoyaltyCardEditActivity.BUNDLE_ADDGROUP, groupsTabLayout.getTabAt(selectedTab).getText().toString());
             }
             intent.putExtras(bundle);
-            startActivityForResult(intent, Utils.BARCODE_SCAN);
+            mBarcodeScannerLauncher.launch(intent);
         });
         addButton.bringToFront();
     }
 
     @Override
-    protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
-        super.onActivityResult(requestCode, resultCode, intent);
-
-        if (requestCode == Utils.MAIN_REQUEST) {
-            // We're coming back from another view so clear the search
-            // We only do this now to prevent a flash of all entries right after picking one
-            mFilter = "";
-            if (mMenu != null)
-            {
-                MenuItem searchItem = mMenu.findItem(R.id.action_search);
-                searchItem.collapseActionView();
-            }
-            ActivityCompat.recreate(this);
-
+    public void onBackPressed() {
+        if (!mSearchView.isIconified()) {
+            mSearchView.setIconified(true);
             return;
         }
 
-        BarcodeValues barcodeValues = Utils.parseSetBarcodeActivityResult(requestCode, resultCode, intent, this);
-
-        if(!barcodeValues.isEmpty()) {
-            Intent newIntent = new Intent(getApplicationContext(), LoyaltyCardEditActivity.class);
-            Bundle newBundle = new Bundle();
-            newBundle.putString(LoyaltyCardEditActivity.BUNDLE_BARCODETYPE, barcodeValues.format());
-            newBundle.putString(LoyaltyCardEditActivity.BUNDLE_CARDID, barcodeValues.content());
-            Bundle inputBundle = intent.getExtras();
-            if (inputBundle != null && inputBundle.getString(LoyaltyCardEditActivity.BUNDLE_ADDGROUP) != null) {
-                newBundle.putString(LoyaltyCardEditActivity.BUNDLE_ADDGROUP, inputBundle.getString(LoyaltyCardEditActivity.BUNDLE_ADDGROUP));
-            }
-            newIntent.putExtras(newBundle);
-            startActivity(newIntent);
-        }
-    }
-
-    @Override
-    public void onBackPressed()
-    {
-        if (mMenu != null) {
-            SearchView searchView = (SearchView) mMenu.findItem(R.id.action_search).getActionView();
-
-            if (!searchView.isIconified()) {
-                searchView.setIconified(true);
-                return;
-            }
-        }
-
         super.onBackPressed();
     }
 
-    private void updateLoyaltyCardList() {
+    private void displayCardSetupOptions(Menu menu, boolean shouldShow) {
+        for (int id : new int[]{R.id.action_search, R.id.action_unfold, R.id.action_sort}) {
+            menu.findItem(id).setVisible(shouldShow);
+        }
+    }
+
+    private void updateLoyaltyCardCount() {
+        mLoyaltyCardCount = DBHelper.getLoyaltyCardCount(mDatabase);
+    }
+
+    private void updateLoyaltyCardList(boolean updateCount) {
         Group group = null;
         if (mGroup != null) {
             group = (Group) mGroup;
         }
 
-        mAdapter.swapCursor(mDB.getLoyaltyCardCursor(mFilter, group, mOrder, mOrderDirection));
+        mAdapter.swapCursor(DBHelper.getLoyaltyCardCursor(mDatabase, mFilter, group, mOrder, mOrderDirection));
 
-        if(mDB.getLoyaltyCardCount() > 0)
-        {
+        if (updateCount) {
+            updateLoyaltyCardCount();
+            // Update menu icons if necessary
+            invalidateOptionsMenu();
+        }
+
+        if (mLoyaltyCardCount > 0) {
             // We want the cardList to be visible regardless of the filtered match count
             // to ensure that the noMatchingCardsText doesn't end up being shown below
             // the keyboard
             mHelpText.setVisibility(View.GONE);
             mNoGroupCardsText.setVisibility(View.GONE);
-            if(mAdapter.getItemCount() > 0)
-            {
+
+            if (mAdapter.getItemCount() > 0) {
                 mCardList.setVisibility(View.VISIBLE);
                 mNoMatchingCardsText.setVisibility(View.GONE);
-            }
-            else
-            {
+            } else {
                 mCardList.setVisibility(View.GONE);
                 if (!mFilter.isEmpty()) {
                     // Actual Empty Search Result
@@ -418,11 +409,10 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
                     mNoGroupCardsText.setVisibility(View.VISIBLE);
                 }
             }
-        }
-        else
-        {
+        } else {
             mCardList.setVisibility(View.GONE);
             mHelpText.setVisibility(View.VISIBLE);
+
             mNoMatchingCardsText.setVisibility(View.GONE);
             mNoGroupCardsText.setVisibility(View.GONE);
         }
@@ -432,11 +422,8 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
         }
     }
 
-    public void updateTabGroups(TabLayout groupsTabLayout)
-    {
-        final DBHelper db = new DBHelper(this);
-
-        List<Group> newGroups = db.getGroups();
+    public void updateTabGroups(TabLayout groupsTabLayout) {
+        List<Group> newGroups = DBHelper.getGroups(mDatabase);
 
         if (newGroups.size() == 0) {
             groupsTabLayout.removeAllTabs();
@@ -462,42 +449,37 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
     }
 
     @Override
-    public boolean onCreateOptionsMenu(Menu inputMenu)
-    {
-        this.mMenu = inputMenu;
-
+    public boolean onCreateOptionsMenu(Menu inputMenu) {
         getMenuInflater().inflate(R.menu.main_menu, inputMenu);
 
-        SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
-        if (searchManager != null)
-        {
-            SearchView searchView = (SearchView) inputMenu.findItem(R.id.action_search).getActionView();
-            searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
-            searchView.setSubmitButtonEnabled(false);
+        displayCardSetupOptions(inputMenu, mLoyaltyCardCount > 0);
 
-            searchView.setOnCloseListener(() -> {
+        SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
+        if (searchManager != null) {
+            mSearchView = (SearchView) inputMenu.findItem(R.id.action_search).getActionView();
+            mSearchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
+            mSearchView.setSubmitButtonEnabled(false);
+
+            mSearchView.setOnCloseListener(() -> {
                 invalidateOptionsMenu();
                 return false;
             });
 
-            searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener()
-            {
+            mSearchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
                 @Override
-                public boolean onQueryTextSubmit(String query)
-                {
+                public boolean onQueryTextSubmit(String query) {
                     return false;
                 }
 
                 @Override
-                public boolean onQueryTextChange(String newText)
-                {
+                public boolean onQueryTextChange(String newText) {
                     mFilter = newText;
 
                     TabLayout groupsTabLayout = findViewById(R.id.groups);
                     TabLayout.Tab currentTab = groupsTabLayout.getTabAt(groupsTabLayout.getSelectedTabPosition());
                     mGroup = currentTab != null ? currentTab.getTag() : null;
 
-                    updateLoyaltyCardList();
+                    updateLoyaltyCardList(false);
 
                     return true;
                 }
@@ -507,13 +489,26 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
     }
 
     @Override
-    public boolean onOptionsItemSelected(MenuItem inputItem)
-    {
+    public boolean onOptionsItemSelected(MenuItem inputItem) {
         int id = inputItem.getItemId();
 
-        if (id == R.id.action_sort)
-        {
-            TabLayout.Tab tab = ((TabLayout) findViewById(R.id.groups)).getTabAt(selectedTab);
+        if (id == R.id.action_unfold) {
+            boolean shouldShow = !mAdapter.showingDetails();
+
+            if (shouldShow) {
+                inputItem.setIcon(R.drawable.ic_baseline_unfold_less_24);
+                inputItem.setTitle(R.string.action_hide_details);
+            } else {
+                inputItem.setIcon(R.drawable.ic_baseline_unfold_more_24);
+                inputItem.setTitle(R.string.action_show_details);
+            }
+
+            mAdapter.showDetails(shouldShow);
+
+            return true;
+        }
+
+        if (id == R.id.action_sort) {
             AtomicInteger currentIndex = new AtomicInteger();
             List<DBHelper.LoyaltyCardOrder> loyaltyCardOrders = Arrays.asList(DBHelper.LoyaltyCardOrder.values());
             for (int i = 0; i < loyaltyCardOrders.size(); i++) {
@@ -535,10 +530,9 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
             builder.setSingleChoiceItems(R.array.sort_types_array, currentIndex.get(), (dialog, which) -> currentIndex.set(which));
 
             builder.setPositiveButton(R.string.sort, (dialog, which) -> {
-                if(ch.isChecked()) {
+                if (ch.isChecked()) {
                     setSort(loyaltyCardOrders.get(currentIndex.get()), DBHelper.LoyaltyCardOrderDirection.Descending);
-                }
-                else {
+                } else {
                     setSort(loyaltyCardOrders.get(currentIndex.get()), DBHelper.LoyaltyCardOrderDirection.Ascending);
                 }
                 dialog.dismiss();
@@ -552,31 +546,27 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
             return true;
         }
 
-        if (id == R.id.action_manage_groups)
-        {
+        if (id == R.id.action_manage_groups) {
             Intent i = new Intent(getApplicationContext(), ManageGroupsActivity.class);
-            startActivityForResult(i, Utils.MAIN_REQUEST);
+            startActivity(i);
             return true;
         }
 
-        if (id == R.id.action_import_export)
-        {
+        if (id == R.id.action_import_export) {
             Intent i = new Intent(getApplicationContext(), ImportExportActivity.class);
-            startActivityForResult(i, Utils.MAIN_REQUEST);
+            startActivity(i);
             return true;
         }
 
-        if (id == R.id.action_settings)
-        {
+        if (id == R.id.action_settings) {
             Intent i = new Intent(getApplicationContext(), SettingsActivity.class);
-            startActivityForResult(i, Utils.MAIN_REQUEST);
+            mSettingsLauncher.launch(i);
             return true;
         }
 
-        if (id == R.id.action_about)
-        {
+        if (id == R.id.action_about) {
             Intent i = new Intent(getApplicationContext(), AboutActivity.class);
-            startActivityForResult(i, Utils.MAIN_REQUEST);
+            startActivity(i);
             return true;
         }
 
@@ -598,14 +588,7 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
         sortPrefEditor.apply();
 
         // Update card list
-        updateLoyaltyCardList();
-    }
-
-    protected static boolean isDarkModeEnabled(Context inputContext)
-    {
-        Configuration config = inputContext.getResources().getConfiguration();
-        int currentNightMode = config.uiMode & Configuration.UI_MODE_NIGHT_MASK;
-        return (currentNightMode == Configuration.UI_MODE_NIGHT_YES);
+        updateLoyaltyCardList(false);
     }
 
     @Override
@@ -633,6 +616,12 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
 
     }
 
+    @Override
+    public boolean dispatchTouchEvent(MotionEvent ev) {
+        mGestureDetector.onTouchEvent(ev);
+        return super.dispatchTouchEvent(ev);
+    }
+
     @Override
     public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
         Log.d(TAG, "On fling");
@@ -648,9 +637,10 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
         }
 
         Integer currentTab = groupsTabLayout.getSelectedTabPosition();
-
+        Log.d("onFling", "Current Tab " + currentTab);
         // Swipe right
         if (velocityX < -150) {
+            Log.d("onFling", "Right Swipe detected " + velocityX);
             Integer nextTab = currentTab + 1;
 
             if (nextTab == groupsTabLayout.getTabCount()) {
@@ -664,6 +654,7 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
 
         // Swipe left
         if (velocityX > 150) {
+            Log.d("onFling", "Left Swipe detected " + velocityX);
             Integer nextTab = currentTab - 1;
 
             if (nextTab < 0) {
@@ -679,22 +670,18 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
     }
 
     @Override
-    public void onRowLongClicked(int inputPosition)
-    {
+    public void onRowLongClicked(int inputPosition) {
         enableActionMode(inputPosition);
     }
 
-    private void enableActionMode(int inputPosition)
-    {
-        if (mCurrentActionMode == null)
-        {
+    private void enableActionMode(int inputPosition) {
+        if (mCurrentActionMode == null) {
             mCurrentActionMode = startSupportActionMode(mCurrentActionModeCallback);
         }
         toggleSelection(inputPosition);
     }
 
-    private void toggleSelection(int inputPosition)
-    {
+    private void toggleSelection(int inputPosition) {
         mAdapter.toggleSelection(inputPosition);
         int count = mAdapter.getSelectedItemCount();
 
@@ -716,19 +703,26 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
         }
     }
 
-
     @Override
-    public void onRowClicked(int inputPosition)
-    {
-        if (mAdapter.getSelectedItemCount() > 0)
-        {
+    public void onRowClicked(int inputPosition) {
+        if (mAdapter.getSelectedItemCount() > 0) {
             enableActionMode(inputPosition);
-        }
-        else
-        {
-            Cursor selected = mAdapter.getCursor();
-            selected.moveToPosition(inputPosition);
-            LoyaltyCard loyaltyCard = LoyaltyCard.toLoyaltyCard(selected);
+        } else {
+            // FIXME
+            //
+            // There is a really nasty edge case that can happen when someone taps a card but right
+            // after it swipes (very small window, hard to reproduce). The cursor gets replaced and
+            // may not have a card at the ID number that is returned from onRowClicked.
+            //
+            // The proper fix, obviously, would involve makes sure an onFling can't happen while a
+            // click is being processed. Sadly, I have not yet found a way to make that possible.
+            LoyaltyCard loyaltyCard;
+            try {
+                loyaltyCard = mAdapter.getCard(inputPosition);
+            } catch (CursorIndexOutOfBoundsException e) {
+                Log.w(TAG, "Prevented crash from tap + swipe on ID " + inputPosition + ": " + e);
+                return;
+            }
 
             Intent i = new Intent(this, LoyaltyCardViewActivity.class);
             i.setAction("");
@@ -738,7 +732,7 @@ public class MainActivity extends CatimaAppCompatActivity implements LoyaltyCard
 
             ShortcutHelper.updateShortcuts(MainActivity.this, loyaltyCard);
 
-            startActivityForResult(i, Utils.MAIN_REQUEST);
+            startActivity(i);
         }
     }
 }

app/src/main/java/protect/card_locker/ManageGroupActivity.java

@@ -0,0 +1,219 @@
+package protect.card_locker;
+
+
+import android.content.Intent;
+import android.database.sqlite.SQLiteDatabase;
+import android.os.Bundle;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.util.Log;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.google.android.material.floatingactionbutton.FloatingActionButton;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Map;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.widget.Toolbar;
+import androidx.recyclerview.widget.RecyclerView;
+
+public class ManageGroupActivity extends CatimaAppCompatActivity implements ManageGroupCursorAdapter.CardAdapterListener {
+
+    private SQLiteDatabase mDatabase;
+    private ManageGroupCursorAdapter mAdapter;
+
+    private final String SAVE_INSTANCE_ADAPTER_STATE = "adapterState";
+    private final String SAVE_INSTANCE_CURRENT_GROUP_NAME = "currentGroupName";
+
+    protected Group mGroup = null;
+    private RecyclerView mCardList;
+    private TextView mHelpText;
+    private EditText mGroupNameText;
+
+    private boolean mGroupNameNotInUse;
+
+    @Override
+    protected void onCreate(Bundle inputSavedInstanceState) {
+        super.onCreate(inputSavedInstanceState);
+        setContentView(R.layout.activity_manage_group);
+        Toolbar toolbar = findViewById(R.id.toolbar);
+        setSupportActionBar(toolbar);
+
+        mDatabase = new DBHelper(this).getWritableDatabase();
+
+        mHelpText = findViewById(R.id.helpText);
+        mCardList = findViewById(R.id.list);
+        FloatingActionButton saveButton = findViewById(R.id.fabSave);
+
+        mGroupNameText = findViewById(R.id.editTextGroupName);
+
+        mGroupNameText.addTextChangedListener(new TextWatcher() {
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+            }
+
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) {
+            }
+
+            @Override
+            public void afterTextChanged(Editable s) {
+                mGroupNameNotInUse = true;
+                mGroupNameText.setError(null);
+                String currentGroupName = mGroupNameText.getText().toString().trim();
+                if (currentGroupName.length() == 0) {
+                    mGroupNameText.setError(getResources().getText(R.string.group_name_is_empty));
+                    return;
+                }
+                if (!mGroup._id.equals(currentGroupName)) {
+                    if (DBHelper.getGroup(mDatabase, currentGroupName) != null) {
+                        mGroupNameNotInUse = false;
+                        mGroupNameText.setError(getResources().getText(R.string.group_name_already_in_use));
+                    } else {
+                        mGroupNameNotInUse = true;
+                    }
+                }
+            }
+        });
+
+        Intent intent = getIntent();
+        String groupId = intent.getStringExtra("group");
+        if (groupId == null) {
+            throw (new IllegalArgumentException("this activity expects a group loaded into it's intent"));
+        }
+        Log.d("groupId", "groupId: " + groupId);
+        mGroup = DBHelper.getGroup(mDatabase, groupId);
+        if (mGroup == null) {
+            throw (new IllegalArgumentException("cannot load group " + groupId + " from database"));
+        }
+        mGroupNameText.setText(mGroup._id);
+        setTitle(getString(R.string.editGroup, mGroup._id));
+        mAdapter = new ManageGroupCursorAdapter(this, null, this, mGroup);
+        mCardList.setAdapter(mAdapter);
+        registerForContextMenu(mCardList);
+
+        if (inputSavedInstanceState != null) {
+            mAdapter.importInGroupState(integerArrayToAdapterState(inputSavedInstanceState.getIntegerArrayList(SAVE_INSTANCE_ADAPTER_STATE)));
+            mGroupNameText.setText(inputSavedInstanceState.getString(SAVE_INSTANCE_CURRENT_GROUP_NAME));
+        }
+
+        ActionBar actionBar = getSupportActionBar();
+        if (actionBar == null) {
+            throw (new RuntimeException("mActionBar is not expected to be null here"));
+        }
+        actionBar.setDisplayHomeAsUpEnabled(true);
+        actionBar.setDisplayShowHomeEnabled(true);
+
+        saveButton.setOnClickListener(v -> {
+            String currentGroupName = mGroupNameText.getText().toString().trim();
+            if (!currentGroupName.equals(mGroup._id)) {
+                if (currentGroupName.length() == 0) {
+                    Toast.makeText(getApplicationContext(), R.string.group_name_is_empty, Toast.LENGTH_SHORT).show();
+                    return;
+                }
+                if (!mGroupNameNotInUse) {
+                    Toast.makeText(getApplicationContext(), R.string.group_name_already_in_use, Toast.LENGTH_SHORT).show();
+                    return;
+                }
+            }
+
+            mAdapter.commitToDatabase();
+            if (!currentGroupName.equals(mGroup._id)) {
+                DBHelper.updateGroup(mDatabase, mGroup._id, currentGroupName);
+            }
+            Toast.makeText(getApplicationContext(), R.string.group_updated, Toast.LENGTH_SHORT).show();
+            finish();
+        });
+        // this setText is here because content_main.xml is reused from main activity
+        mHelpText.setText(getResources().getText(R.string.noGiftCardsGroup));
+        updateLoyaltyCardList();
+    }
+
+    private ArrayList<Integer> adapterStateToIntegerArray(HashMap<Integer, Boolean> adapterState) {
+        ArrayList<Integer> ret = new ArrayList<>(adapterState.size() * 2);
+        for (Map.Entry<Integer, Boolean> entry : adapterState.entrySet()) {
+            ret.add(entry.getKey());
+            ret.add(entry.getValue() ? 1 : 0);
+        }
+        return ret;
+    }
+
+    private HashMap<Integer, Boolean> integerArrayToAdapterState(ArrayList<Integer> in) {
+        HashMap<Integer, Boolean> ret = new HashMap<>();
+        if (in.size() % 2 != 0) {
+            throw (new RuntimeException("failed restoring adapterState from integer array list"));
+        }
+        for (int i = 0; i < in.size(); i += 2) {
+            ret.put(in.get(i), in.get(i + 1) == 1);
+        }
+        return ret;
+    }
+
+
+    @Override
+    protected void onSaveInstanceState(@NonNull Bundle outState) {
+        super.onSaveInstanceState(outState);
+
+        outState.putIntegerArrayList(SAVE_INSTANCE_ADAPTER_STATE, adapterStateToIntegerArray(mAdapter.exportInGroupState()));
+        outState.putString(SAVE_INSTANCE_CURRENT_GROUP_NAME, mGroupNameText.getText().toString());
+    }
+
+    private void updateLoyaltyCardList() {
+        mAdapter.swapCursor(DBHelper.getLoyaltyCardCursor(mDatabase));
+
+        if (mAdapter.getItemCount() == 0) {
+            mCardList.setVisibility(View.GONE);
+            mHelpText.setVisibility(View.VISIBLE);
+        } else {
+            mCardList.setVisibility(View.VISIBLE);
+            mHelpText.setVisibility(View.GONE);
+        }
+    }
+
+    private void leaveWithoutSaving() {
+        if (hasChanged()) {
+            AlertDialog.Builder builder = new AlertDialog.Builder(ManageGroupActivity.this);
+            builder.setTitle(R.string.leaveWithoutSaveTitle);
+            builder.setMessage(R.string.leaveWithoutSaveConfirmation);
+            builder.setPositiveButton(R.string.confirm, (dialog, which) -> finish());
+            builder.setNegativeButton(R.string.cancel, (dialog, which) -> dialog.dismiss());
+            AlertDialog dialog = builder.create();
+            dialog.show();
+        } else {
+            finish();
+        }
+    }
+
+    @Override
+    public void onBackPressed() {
+        leaveWithoutSaving();
+    }
+
+    @Override
+    public boolean onSupportNavigateUp() {
+        onBackPressed();
+        return true;
+    }
+
+    private boolean hasChanged() {
+        return mAdapter.hasChanged() || !mGroup._id.equals(mGroupNameText.getText().toString().trim());
+    }
+
+    @Override
+    public void onRowLongClicked(int inputPosition) {
+        mAdapter.toggleSelection(inputPosition);
+    }
+
+    @Override
+    public void onRowClicked(int inputPosition) {
+        mAdapter.toggleSelection(inputPosition);
+
+    }
+}

app/src/main/java/protect/card_locker/ManageGroupCursorAdapter.java

@@ -0,0 +1,111 @@
+package protect.card_locker;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import androidx.recyclerview.widget.RecyclerView;
+
+public class ManageGroupCursorAdapter extends LoyaltyCardCursorAdapter {
+    private HashMap<Integer, Integer> mIndexCardMap;
+    private HashMap<Integer, Boolean> mInGroupOverlay;
+    private HashMap<Integer, Boolean> mIsLoyaltyCardInGroupCache;
+    private HashMap<Integer, List<Group>> mGetGroupCache;
+    final private Group mGroup;
+    final private SQLiteDatabase mDatabase;
+
+    public ManageGroupCursorAdapter(Context inputContext, Cursor inputCursor, CardAdapterListener inputListener, Group group) {
+        super(inputContext, inputCursor, inputListener);
+        mGroup = new Group(group._id, group.order);
+        mInGroupOverlay = new HashMap<>();
+        mDatabase = new DBHelper(inputContext).getWritableDatabase();
+    }
+
+    @Override
+    public void swapCursor(Cursor inputCursor) {
+        super.swapCursor(inputCursor);
+        mIndexCardMap = new HashMap<>();
+        mIsLoyaltyCardInGroupCache = new HashMap<>();
+        mGetGroupCache = new HashMap<>();
+    }
+
+    @Override
+    public void onBindViewHolder(LoyaltyCardListItemViewHolder inputHolder, Cursor inputCursor) {
+        LoyaltyCard loyaltyCard = LoyaltyCard.toLoyaltyCard(inputCursor);
+        Boolean overlayValue = mInGroupOverlay.get(loyaltyCard.id);
+        if ((overlayValue != null ? overlayValue : isLoyaltyCardInGroup(loyaltyCard.id))) {
+            mAnimationItemsIndex.put(inputCursor.getPosition(), true);
+            mSelectedItems.put(inputCursor.getPosition(), true);
+        }
+        mIndexCardMap.put(inputCursor.getPosition(), loyaltyCard.id);
+        super.onBindViewHolder(inputHolder, inputCursor);
+    }
+
+    private List<Group> getGroups(int cardId) {
+        List<Group> cache = mGetGroupCache.get(cardId);
+        if (cache != null) {
+            return cache;
+        }
+        List<Group> groups = DBHelper.getLoyaltyCardGroups(mDatabase, cardId);
+        mGetGroupCache.put(cardId, groups);
+        return groups;
+    }
+
+    private boolean isLoyaltyCardInGroup(int cardId) {
+        Boolean cache = mIsLoyaltyCardInGroupCache.get(cardId);
+        if (cache != null) {
+            return cache;
+        }
+        List<Group> groups = getGroups(cardId);
+        if (groups.contains(mGroup)) {
+            mIsLoyaltyCardInGroupCache.put(cardId, true);
+            return true;
+        }
+        mIsLoyaltyCardInGroupCache.put(cardId, false);
+        return false;
+    }
+
+    @Override
+    public void toggleSelection(int inputPosition) {
+        super.toggleSelection(inputPosition);
+        Integer cardId = mIndexCardMap.get(inputPosition);
+        if (cardId == null) {
+            throw (new RuntimeException("cardId should not be null here"));
+        }
+        Boolean overlayValue = mInGroupOverlay.get(cardId);
+        if (overlayValue == null) {
+            mInGroupOverlay.put(cardId, !isLoyaltyCardInGroup(cardId));
+        } else {
+            mInGroupOverlay.remove(cardId);
+        }
+    }
+
+    public boolean hasChanged() {
+        return mInGroupOverlay.size() > 0;
+    }
+
+    public void commitToDatabase() {
+        for (Map.Entry<Integer, Boolean> entry : mInGroupOverlay.entrySet()) {
+            int cardId = entry.getKey();
+            List<Group> groups = getGroups(cardId);
+            if (entry.getValue()) {
+                groups.add(mGroup);
+            } else {
+                groups.remove(mGroup);
+            }
+            DBHelper.setLoyaltyCardGroups(mDatabase, cardId, groups);
+        }
+    }
+
+    public void importInGroupState(HashMap<Integer, Boolean> cardIdInGroupMap) {
+        mInGroupOverlay = new HashMap<>(cardIdInGroupMap);
+    }
+
+    public HashMap<Integer, Boolean> exportInGroupState() {
+        return new HashMap<>(mInGroupOverlay);
+    }
+}

app/src/main/java/protect/card_locker/ManageGroupsActivity.java

@@ -1,7 +1,9 @@
 package protect.card_locker;
 
 import android.content.Context;
+import android.content.Intent;
 import android.content.SharedPreferences;
+import android.database.sqlite.SQLiteDatabase;
 import android.os.Bundle;
 import android.text.InputType;
 import android.view.MenuItem;
@@ -9,6 +11,7 @@ import android.view.View;
 import android.view.WindowManager;
 import android.widget.EditText;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import com.google.android.material.floatingactionbutton.FloatingActionButton;
 
@@ -21,28 +24,27 @@ import androidx.recyclerview.widget.DefaultItemAnimator;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 
-public class ManageGroupsActivity extends CatimaAppCompatActivity implements GroupCursorAdapter.GroupAdapterListener
-{
+public class ManageGroupsActivity extends CatimaAppCompatActivity implements GroupCursorAdapter.GroupAdapterListener {
     private static final String TAG = "Catima";
 
-    private final DBHelper mDb = new DBHelper(this);
+    private SQLiteDatabase mDatabase;
     private TextView mHelpText;
     private RecyclerView mGroupList;
     GroupCursorAdapter mAdapter;
 
     @Override
-    protected void onCreate(Bundle savedInstanceState)
-    {
+    protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setTitle(R.string.groups);
         setContentView(R.layout.manage_groups_activity);
         Toolbar toolbar = findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);
         ActionBar actionBar = getSupportActionBar();
-        if(actionBar != null)
-        {
+        if (actionBar != null) {
             actionBar.setDisplayHomeAsUpEnabled(true);
         }
+
+        mDatabase = new DBHelper(this).getWritableDatabase();
     }
 
     @Override
@@ -72,11 +74,10 @@ public class ManageGroupsActivity extends CatimaAppCompatActivity implements Gro
         super.onBackPressed();
     }
 
-    private void updateGroupList()
-    {
-        mAdapter.swapCursor(mDb.getGroupCursor());
+    private void updateGroupList() {
+        mAdapter.swapCursor(DBHelper.getGroupCursor(mDatabase));
 
-        if (mDb.getGroupCount() == 0) {
+        if (DBHelper.getGroupCount(mDatabase) == 0) {
             mGroupList.setVisibility(View.GONE);
             mHelpText.setVisibility(View.VISIBLE);
 
@@ -87,8 +88,7 @@ public class ManageGroupsActivity extends CatimaAppCompatActivity implements Gro
         mHelpText.setVisibility(View.GONE);
     }
 
-    private void invalidateHomescreenActiveTab()
-    {
+    private void invalidateHomescreenActiveTab() {
         SharedPreferences activeTabPref = getApplicationContext().getSharedPreferences(
                 getString(R.string.sharedpreference_active_tab),
                 Context.MODE_PRIVATE);
@@ -98,8 +98,7 @@ public class ManageGroupsActivity extends CatimaAppCompatActivity implements Gro
     }
 
     @Override
-    public boolean onOptionsItemSelected(MenuItem item)
-    {
+    public boolean onOptionsItemSelected(MenuItem item) {
         int id = item.getItemId();
 
         if (id == android.R.id.home) {
@@ -110,14 +109,23 @@ public class ManageGroupsActivity extends CatimaAppCompatActivity implements Gro
     }
 
     private void createGroup() {
-        AlertDialog.Builder builder = new AlertDialog.Builder(this,R.style.AlertDialogTheme);
+        AlertDialog.Builder builder = new AlertDialog.Builder(this);
         builder.setTitle(R.string.enter_group_name);
         final EditText input = new EditText(this);
         input.setInputType(InputType.TYPE_CLASS_TEXT);
         builder.setView(input);
 
         builder.setPositiveButton(getString(R.string.ok), (dialog, which) -> {
-            mDb.insertGroup(input.getText().toString());
+            String inputString = input.getText().toString().trim();
+            if (inputString.length() == 0) {
+                Toast.makeText(getApplicationContext(), R.string.group_name_is_empty, Toast.LENGTH_SHORT).show();
+                return;
+            }
+            if (DBHelper.getGroup(mDatabase, inputString) != null) {
+                Toast.makeText(getApplicationContext(), R.string.group_name_already_in_use, Toast.LENGTH_SHORT).show();
+                return;
+            }
+            DBHelper.insertGroup(mDatabase, inputString);
             updateGroupList();
         });
         builder.setNegativeButton(getString(R.string.cancel), (dialog, which) -> dialog.cancel());
@@ -133,10 +141,10 @@ public class ManageGroupsActivity extends CatimaAppCompatActivity implements Gro
     }
 
     private void moveGroup(View view, boolean up) {
-        List<Group> groups = mDb.getGroups();
+        List<Group> groups = DBHelper.getGroups(mDatabase);
         final String groupName = getGroupName(view);
 
-        int currentIndex = mDb.getGroup(groupName).order;
+        int currentIndex = DBHelper.getGroup(mDatabase, groupName).order;
         int newIndex;
 
         // Reinsert group in correct position
@@ -155,7 +163,7 @@ public class ManageGroupsActivity extends CatimaAppCompatActivity implements Gro
         groups.add(newIndex, group);
 
         // Update database
-        mDb.reorderGroups(groups);
+        DBHelper.reorderGroups(mDatabase, groups);
 
         // Update UI
         updateGroupList();
@@ -176,25 +184,9 @@ public class ManageGroupsActivity extends CatimaAppCompatActivity implements Gro
 
     @Override
     public void onEditButtonClicked(View view) {
-        final String groupName = getGroupName(view);
-
-        AlertDialog.Builder builder = new AlertDialog.Builder(this);
-        builder.setTitle(R.string.enter_group_name);
-        final EditText input = new EditText(this);
-        input.setInputType(InputType.TYPE_CLASS_TEXT);
-        input.setText(groupName);
-        builder.setView(input);
-
-        builder.setPositiveButton(getString(R.string.ok), (dialog, which) -> {
-            String newGroupName = input.getText().toString();
-            mDb.updateGroup(groupName, newGroupName);
-            updateGroupList();
-        });
-        builder.setNegativeButton(getString(R.string.cancel), (dialog, which) -> dialog.cancel());
-        AlertDialog dialog = builder.create();
-        dialog.show();
-        dialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
-        input.requestFocus();
+        Intent intent = new Intent(this, ManageGroupActivity.class);
+        intent.putExtra("group", getGroupName(view));
+        startActivity(intent);
     }
 
     @Override
@@ -206,7 +198,7 @@ public class ManageGroupsActivity extends CatimaAppCompatActivity implements Gro
         builder.setMessage(groupName);
 
         builder.setPositiveButton(getString(R.string.ok), (dialog, which) -> {
-            mDb.deleteGroup(groupName);
+            DBHelper.deleteGroup(mDatabase, groupName);
             updateGroupList();
             // Delete may change ordering, so invalidate
             invalidateHomescreenActiveTab();

app/src/main/java/protect/card_locker/ScanActivity.java

@@ -20,12 +20,14 @@ import com.journeyapps.barcodescanner.DecoratedBarcodeView;
 
 import java.util.List;
 
+import androidx.activity.result.ActivityResultLauncher;
+import androidx.activity.result.contract.ActivityResultContracts;
 import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.widget.Toolbar;
 
 /**
  * Custom Scannner Activity extending from Activity to display a custom layout form scanner view.
- *
+ * <p>
  * Based on https://github.com/journeyapps/zxing-android-embedded/blob/0fdfbce9fb3285e985bad9971c5f7c0a7a334e7b/sample/src/main/java/example/zxing/CustomScannerActivity.java
  * originally licensed under Apache 2.0
  */
@@ -39,6 +41,10 @@ public class ScanActivity extends CatimaAppCompatActivity {
     private String addGroup;
     private boolean torch = false;
 
+    private ActivityResultLauncher<Intent> manualAddLauncher;
+    // can't use the pre-made contract because that launches the file manager for image type instead of gallery
+    private ActivityResultLauncher<Intent> photoPickerLauncher;
+
     private void extractIntentFields(Intent intent) {
         final Bundle b = intent.getExtras();
         cardId = b != null ? b.getString(LoyaltyCardEditActivity.BUNDLE_CARDID) : null;
@@ -54,13 +60,14 @@ public class ScanActivity extends CatimaAppCompatActivity {
         Toolbar toolbar = findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);
         ActionBar actionBar = getSupportActionBar();
-        if(actionBar != null)
-        {
+        if (actionBar != null) {
             actionBar.setDisplayHomeAsUpEnabled(true);
         }
 
         extractIntentFields(getIntent());
 
+        manualAddLauncher = registerForActivityResult(new ActivityResultContracts.StartActivityForResult(), result -> handleActivityResult(Utils.SELECT_BARCODE_REQUEST, result.getResultCode(), result.getData()));
+        photoPickerLauncher = registerForActivityResult(new ActivityResultContracts.StartActivityForResult(), result -> handleActivityResult(Utils.BARCODE_IMPORT_FROM_IMAGE_FILE, result.getResultCode(), result.getData()));
         findViewById(R.id.add_from_image).setOnClickListener(this::addFromImage);
         findViewById(R.id.add_manually).setOnClickListener(this::addManually);
 
@@ -127,8 +134,7 @@ public class ScanActivity extends CatimaAppCompatActivity {
     }
 
     @Override
-    public boolean onCreateOptionsMenu(Menu menu)
-    {
+    public boolean onCreateOptionsMenu(Menu menu) {
         if (getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH)) {
             getMenuInflater().inflate(R.menu.scan_menu, menu);
         }
@@ -139,10 +145,8 @@ public class ScanActivity extends CatimaAppCompatActivity {
     }
 
     @Override
-    public boolean onOptionsItemSelected(MenuItem item)
-    {
-        if (item.getItemId() == android.R.id.home)
-        {
+    public boolean onOptionsItemSelected(MenuItem item) {
+        if (item.getItemId() == android.R.id.home) {
             setResult(Activity.RESULT_CANCELED);
             finish();
             return true;
@@ -163,9 +167,7 @@ public class ScanActivity extends CatimaAppCompatActivity {
         return super.onOptionsItemSelected(item);
     }
 
-    @Override
-    public void onActivityResult(int requestCode, int resultCode, Intent intent)
-    {
+    private void handleActivityResult(int requestCode, int resultCode, Intent intent) {
         super.onActivityResult(requestCode, resultCode, intent);
 
         BarcodeValues barcodeValues;
@@ -198,12 +200,12 @@ public class ScanActivity extends CatimaAppCompatActivity {
             b.putString("initialCardId", cardId);
             i.putExtras(b);
         }
-        startActivityForResult(i, Utils.SELECT_BARCODE_REQUEST);
+        manualAddLauncher.launch(i);
     }
 
     public void addFromImage(View view) {
         Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
         photoPickerIntent.setType("image/*");
-        startActivityForResult(photoPickerIntent, Utils.BARCODE_IMPORT_FROM_IMAGE_FILE);
+        photoPickerLauncher.launch(photoPickerIntent);
     }
 }

app/src/main/java/protect/card_locker/ShortcutHelper.java

@@ -2,9 +2,14 @@ package protect.card_locker;
 
 import android.content.Context;
 import android.content.Intent;
+import android.database.sqlite.SQLiteDatabase;
 import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Color;
 import android.os.Bundle;
 
+import org.jetbrains.annotations.NotNull;
+
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.LinkedList;
@@ -12,10 +17,10 @@ import java.util.List;
 
 import androidx.core.content.pm.ShortcutInfoCompat;
 import androidx.core.content.pm.ShortcutManagerCompat;
+import androidx.core.graphics.ColorUtils;
 import androidx.core.graphics.drawable.IconCompat;
 
-class ShortcutHelper
-{
+class ShortcutHelper {
     // Android documentation says that no more than 5 shortcuts
     // are supported. However, that may be too many, as not all
     // launcher will show all 5. Instead, the number is limited
@@ -23,6 +28,14 @@ class ShortcutHelper
     // chance of being shown.
     private static final int MAX_SHORTCUTS = 3;
 
+    // https://developer.android.com/reference/android/graphics/drawable/AdaptiveIconDrawable.html
+    private static final int ADAPTIVE_BITMAP_SCALE = 1;
+    private static final int ADAPTIVE_BITMAP_SIZE = 108 * ADAPTIVE_BITMAP_SCALE;
+    private static final int ADAPTIVE_BITMAP_VISIBLE_SIZE = 72 * ADAPTIVE_BITMAP_SCALE;
+    private static final int ADAPTIVE_BITMAP_IMAGE_SIZE = ADAPTIVE_BITMAP_VISIBLE_SIZE + 5 * ADAPTIVE_BITMAP_SCALE;
+    private static final int PADDING_COLOR = Color.argb(255, 255, 255, 255);
+    private static final int PADDING_COLOR_OVERLAY = Color.argb(127, 0, 0, 0);
+
     /**
      * Add a card to the app shortcuts, and maintain a list of the most
      * recently used cards. If there is already a shortcut for the card,
@@ -30,11 +43,10 @@ class ShortcutHelper
      * card exceeds the max number of shortcuts, then the least recently
      * used card shortcut is discarded.
      */
-    static void updateShortcuts(Context context, LoyaltyCard card)
-    {
+    static void updateShortcuts(Context context, LoyaltyCard card) {
         LinkedList<ShortcutInfoCompat> list = new LinkedList<>(ShortcutManagerCompat.getDynamicShortcuts(context));
 
-        DBHelper dbHelper = new DBHelper(context);
+        SQLiteDatabase database = new DBHelper(context).getReadableDatabase();
 
         String shortcutId = Integer.toString(card.id);
 
@@ -44,31 +56,25 @@ class ShortcutHelper
 
         Integer foundIndex = null;
 
-        for(int index = 0; index < list.size(); index++)
-        {
-            if(list.get(index).getId().equals(shortcutId))
-            {
+        for (int index = 0; index < list.size(); index++) {
+            if (list.get(index).getId().equals(shortcutId)) {
                 // Found the item already
                 foundIndex = index;
                 break;
             }
         }
 
-        if(foundIndex != null)
-        {
+        if (foundIndex != null) {
             // If the item is already found, then the list needs to be
             // reordered, so that the selected item now has the lowest
             // rank, thus letting it survive longer.
             ShortcutInfoCompat found = list.remove(foundIndex.intValue());
             list.addFirst(found);
-        }
-        else
-        {
+        } else {
             // The item is new to the list. First, we need to trim the list
             // until it is able to accept a new item, then the item is
             // inserted.
-            while(list.size() >= MAX_SHORTCUTS)
-            {
+            while (list.size() >= MAX_SHORTCUTS) {
                 list.pollLast();
             }
 
@@ -80,15 +86,14 @@ class ShortcutHelper
         LinkedList<ShortcutInfoCompat> finalList = new LinkedList<>();
 
         // The ranks are now updated; the order in the list is the rank.
-        for(int index = 0; index < list.size(); index++)
-        {
+        for (int index = 0; index < list.size(); index++) {
             ShortcutInfoCompat prevShortcut = list.get(index);
 
-            LoyaltyCard loyaltyCard = dbHelper.getLoyaltyCard(Integer.parseInt(prevShortcut.getId()));
+            LoyaltyCard loyaltyCard = DBHelper.getLoyaltyCard(database, Integer.parseInt(prevShortcut.getId()));
 
             ShortcutInfoCompat updatedShortcut = createShortcutBuilder(context, loyaltyCard)
-                        .setRank(index)
-                        .build();
+                    .setRank(index)
+                    .build();
 
             finalList.addLast(updatedShortcut);
         }
@@ -100,16 +105,13 @@ class ShortcutHelper
      * Remove the given card id from the app shortcuts, if such a
      * shortcut exists.
      */
-    static void removeShortcut(Context context, int cardId)
-    {
+    static void removeShortcut(Context context, int cardId) {
         List<ShortcutInfoCompat> list = ShortcutManagerCompat.getDynamicShortcuts(context);
 
         String shortcutId = Integer.toString(cardId);
 
-        for(int index = 0; index < list.size(); index++)
-        {
-            if(list.get(index).getId().equals(shortcutId))
-            {
+        for (int index = 0; index < list.size(); index++) {
+            if (list.get(index).getId().equals(shortcutId)) {
                 list.remove(index);
                 break;
             }
@@ -118,6 +120,16 @@ class ShortcutHelper
         ShortcutManagerCompat.setDynamicShortcuts(context, list);
     }
 
+    static @NotNull
+    Bitmap createAdaptiveBitmap(@NotNull Bitmap in, int paddingColor) {
+        Bitmap ret = Bitmap.createBitmap(ADAPTIVE_BITMAP_SIZE, ADAPTIVE_BITMAP_SIZE, Bitmap.Config.ARGB_8888);
+        Canvas output = new Canvas(ret);
+        output.drawColor(ColorUtils.compositeColors(PADDING_COLOR_OVERLAY, paddingColor));
+        Bitmap resized = Utils.resizeBitmap(in, ADAPTIVE_BITMAP_IMAGE_SIZE);
+        output.drawBitmap(resized, (ADAPTIVE_BITMAP_SIZE - resized.getWidth()) / 2f, (ADAPTIVE_BITMAP_SIZE - resized.getHeight()) / 2f, null);
+        return ret;
+    }
+
     static ShortcutInfoCompat.Builder createShortcutBuilder(Context context, LoyaltyCard loyaltyCard) {
         Intent intent = new Intent(context, LoyaltyCardViewActivity.class);
         intent.setAction(Intent.ACTION_MAIN);
@@ -129,7 +141,12 @@ class ShortcutHelper
         bundle.putBoolean("view", true);
         intent.putExtras(bundle);
 
-        Bitmap iconBitmap = Utils.generateIcon(context, loyaltyCard, true).getLetterTile();
+        Bitmap iconBitmap = Utils.retrieveCardImage(context, loyaltyCard.id, ImageLocationType.icon);
+        if (iconBitmap == null) {
+            iconBitmap = Utils.generateIcon(context, loyaltyCard, true).getLetterTile();
+        } else {
+            iconBitmap = createAdaptiveBitmap(iconBitmap, loyaltyCard.headerColor == null ? PADDING_COLOR : loyaltyCard.headerColor);
+        }
 
         IconCompat icon = IconCompat.createWithAdaptiveBitmap(iconBitmap);
 

app/src/main/java/protect/card_locker/SimpleTextWatcher.java

@@ -5,11 +5,14 @@ import android.text.TextWatcher;
 
 public class SimpleTextWatcher implements TextWatcher {
     @Override
-    public void beforeTextChanged(CharSequence s, int start, int count, int after) { }
+    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+    }
 
     @Override
-    public void onTextChanged(CharSequence s, int start, int before, int count) { }
+    public void onTextChanged(CharSequence s, int start, int before, int count) {
+    }
 
     @Override
-    public void afterTextChanged(Editable s) { }
+    public void afterTextChanged(Editable s) {
+    }
 }

app/src/main/java/protect/card_locker/UCropWrapper.java

@@ -0,0 +1,79 @@
+package protect.card_locker;
+
+import android.content.Intent;
+import android.graphics.Color;
+import android.graphics.Typeface;
+import android.graphics.drawable.Drawable;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.FrameLayout;
+import android.widget.LinearLayout;
+
+import androidx.annotation.Nullable;
+import androidx.appcompat.widget.AppCompatImageView;
+import androidx.core.content.ContextCompat;
+import androidx.core.graphics.ColorUtils;
+
+import com.google.android.material.color.MaterialColors;
+import com.google.android.material.textview.MaterialTextView;
+import com.yalantis.ucrop.UCropActivity;
+
+public class UCropWrapper extends UCropActivity {
+    public static final String UCROP_TOOLBAR_TYPEFACE_STYLE = "ucop_toolbar_typeface_style";
+
+    @Override
+    protected void onPostCreate(@Nullable Bundle savedInstanceState) {
+        super.onPostCreate(savedInstanceState);
+        boolean darkMode = Utils.isDarkModeEnabled(this);
+        // setup status bar to look like the rest of the app
+        if (Build.VERSION.SDK_INT >= 23) {
+            getWindow().getDecorView().setSystemUiVisibility(darkMode ? 0 : View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        } else {
+            // icons are always white back then
+            if (!darkMode) {
+                getWindow().setStatusBarColor(ColorUtils.compositeColors(Color.argb(127, 0, 0, 0), getWindow().getStatusBarColor()));
+            }
+        }
+
+        // find and check views that we wish to color modify
+        // for when we update ucrop or switch to another cropper
+        View check = findViewById(com.yalantis.ucrop.R.id.wrapper_controls);
+        if (check instanceof FrameLayout) {
+            FrameLayout controls = (FrameLayout) check;
+            check = findViewById(com.yalantis.ucrop.R.id.wrapper_states);
+            if (check instanceof LinearLayout) {
+                LinearLayout states = (LinearLayout) check;
+                for (int i = 0; i < controls.getChildCount(); i++) {
+                    check = controls.getChildAt(i);
+                    if (check instanceof AppCompatImageView) {
+                        AppCompatImageView controlsBackgroundImage = (AppCompatImageView) check;
+                        // everything gathered and are as expected, now perform color patching
+                        Utils.patchColors(this);
+                        int colorSurface = MaterialColors.getColor(this, R.attr.colorSurface, ContextCompat.getColor(this, R.color.md_theme_light_surface));
+                        int colorOnSurface = MaterialColors.getColor(this, R.attr.colorOnSurface, ContextCompat.getColor(this, R.color.md_theme_light_onSurface));
+
+                        Drawable controlsBackgroundImageDrawable = controlsBackgroundImage.getBackground();
+                        controlsBackgroundImageDrawable.mutate();
+                        controlsBackgroundImageDrawable.setTint(darkMode ? colorOnSurface : colorSurface);
+                        controlsBackgroundImage.setBackgroundDrawable(controlsBackgroundImageDrawable);
+
+                        states.setBackgroundColor(darkMode ? colorSurface : colorOnSurface);
+                        break;
+                    }
+                }
+            }
+        }
+
+        // change toolbar font
+        check = findViewById(com.yalantis.ucrop.R.id.toolbar_title);
+        if (check instanceof MaterialTextView) {
+            MaterialTextView toolbarTextview = (MaterialTextView) check;
+            Intent intent = getIntent();
+            int style = intent.getIntExtra(UCROP_TOOLBAR_TYPEFACE_STYLE, -1);
+            if (style != -1) {
+                toolbarTextview.setTypeface(Typeface.defaultFromStyle(style));
+            }
+        }
+    }
+}

app/src/main/java/protect/card_locker/Utils.java

@@ -14,8 +14,10 @@ import android.os.Build;
 import android.os.LocaleList;
 import android.provider.MediaStore;
 import android.util.Log;
+import android.util.TypedValue;
 import android.widget.Toast;
 
+import com.google.android.material.color.DynamicColors;
 import com.google.zxing.BinaryBitmap;
 import com.google.zxing.LuminanceSource;
 import com.google.zxing.MultiFormatReader;
@@ -25,6 +27,7 @@ import com.google.zxing.Result;
 import com.google.zxing.common.HybridBinarizer;
 
 import java.io.ByteArrayOutputStream;
+import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
@@ -38,8 +41,11 @@ import java.util.GregorianCalendar;
 import java.util.Locale;
 import java.util.Map;
 
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.app.AppCompatDelegate;
 import androidx.core.graphics.ColorUtils;
 import androidx.exifinterface.media.ExifInterface;
+
 import protect.card_locker.preferences.Settings;
 
 public class Utils {
@@ -52,12 +58,15 @@ public class Utils {
     public static final int BARCODE_IMPORT_FROM_IMAGE_FILE = 4;
     public static final int CARD_IMAGE_FROM_CAMERA_FRONT = 5;
     public static final int CARD_IMAGE_FROM_CAMERA_BACK = 6;
-    public static final int CARD_IMAGE_FROM_FILE_FRONT = 7;
-    public static final int CARD_IMAGE_FROM_FILE_BACK = 8;
+    public static final int CARD_IMAGE_FROM_CAMERA_ICON = 7;
+    public static final int CARD_IMAGE_FROM_FILE_FRONT = 8;
+    public static final int CARD_IMAGE_FROM_FILE_BACK = 9;
+    public static final int CARD_IMAGE_FROM_FILE_ICON = 10;
 
     static final double LUMINANCE_MIDPOINT = 0.5;
 
-    static final int BITMAP_SIZE_BIG = 512;
+    static final int BITMAP_SIZE_SMALL = 512;
+    static final int BITMAP_SIZE_BIG = 2048;
 
     static public LetterBitmap generateIcon(Context context, LoyaltyCard loyaltyCard, boolean forShortcut) {
         return generateIcon(context, loyaltyCard.store, loyaltyCard.headerColor, forShortcut);
@@ -79,7 +88,7 @@ public class Utils {
             tileLetterFontSize = context.getResources().getDimensionPixelSize(R.dimen.tileLetterFontSize);
         }
 
-        int pixelSize = context.getResources().getDimensionPixelSize(R.dimen.cardThumbnailSize);
+        int pixelSize = context.getResources().getDimensionPixelSize(R.dimen.tileLetterImageSize);
 
         if (backgroundColor == null) {
             backgroundColor = LetterBitmap.getDefaultColor(context, store);
@@ -201,7 +210,7 @@ public class Utils {
 
         if (currency == null) {
             numberFormat.setMaximumFractionDigits(0);
-            return context.getString(R.string.balancePoints, numberFormat.format(value));
+            return context.getResources().getQuantityString(R.plurals.balancePoints, value.intValue(), numberFormat.format(value));
         }
 
         NumberFormat currencyFormat = NumberFormat.getCurrencyInstance();
@@ -264,13 +273,11 @@ public class Utils {
         return bos.toByteArray();
     }
 
-    static public Bitmap resizeBitmap(Bitmap bitmap) {
+    static public Bitmap resizeBitmap(Bitmap bitmap, double maxSize) {
         if (bitmap == null) {
             return null;
         }
 
-        double maxSize = BITMAP_SIZE_BIG;
-
         double width = bitmap.getWidth();
         double height = bitmap.getHeight();
 
@@ -313,16 +320,20 @@ public class Utils {
         return Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
     }
 
-    static public String getCardImageFileName(int loyaltyCardId, boolean front) {
+    static public String getCardImageFileName(int loyaltyCardId, ImageLocationType type) {
         StringBuilder cardImageFileNameBuilder = new StringBuilder();
 
         cardImageFileNameBuilder.append("card_");
         cardImageFileNameBuilder.append(loyaltyCardId);
         cardImageFileNameBuilder.append("_");
-        if (front) {
+        if (type == ImageLocationType.front) {
             cardImageFileNameBuilder.append("front");
-        } else {
+        } else if (type == ImageLocationType.back) {
             cardImageFileNameBuilder.append("back");
+        } else if (type == ImageLocationType.icon) {
+            cardImageFileNameBuilder.append("icon");
+        } else {
+            throw new IllegalArgumentException("Unknown image type");
         }
         cardImageFileNameBuilder.append(".png");
 
@@ -340,8 +351,8 @@ public class Utils {
         bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
     }
 
-    static public void saveCardImage(Context context, Bitmap bitmap, int loyaltyCardId, boolean front) throws FileNotFoundException {
-        saveCardImage(context, bitmap, getCardImageFileName(loyaltyCardId, front));
+    static public void saveCardImage(Context context, Bitmap bitmap, int loyaltyCardId, ImageLocationType type) throws FileNotFoundException {
+        saveCardImage(context, bitmap, getCardImageFileName(loyaltyCardId, type));
     }
 
     static public Bitmap retrieveCardImage(Context context, String fileName) {
@@ -355,11 +366,11 @@ public class Utils {
         return BitmapFactory.decodeStream(in);
     }
 
-    static public Bitmap retrieveCardImage(Context context, int loyaltyCardId, boolean front) {
-        return retrieveCardImage(context, getCardImageFileName(loyaltyCardId, front));
+    static public Bitmap retrieveCardImage(Context context, int loyaltyCardId, ImageLocationType type) {
+        return retrieveCardImage(context, getCardImageFileName(loyaltyCardId, type));
     }
 
-    static public <T,U> U mapGetOrDefault(Map<T,U> map, T key, U defaultValue) {
+    static public <T, U> U mapGetOrDefault(Map<T, U> map, T key, U defaultValue) {
         U value = map.get(key);
         if (value == null) {
             return defaultValue;
@@ -401,4 +412,98 @@ public class Utils {
     static public long getUnixTime() {
         return System.currentTimeMillis() / 1000;
     }
+
+    static public boolean isDarkModeEnabled(Context inputContext) {
+        int nightModeSetting = new Settings(inputContext).getTheme();
+        if (nightModeSetting == AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM) {
+            Configuration config = inputContext.getResources().getConfiguration();
+            int currentNightMode = config.uiMode & Configuration.UI_MODE_NIGHT_MASK;
+            return (currentNightMode == Configuration.UI_MODE_NIGHT_YES);
+        } else {
+            return nightModeSetting == AppCompatDelegate.MODE_NIGHT_YES;
+        }
+    }
+
+    public static File createTempFile(Context context, String name) {
+        return new File(context.getCacheDir() + "/" + name);
+    }
+
+    public static String saveTempImage(Context context, Bitmap in, String name, Bitmap.CompressFormat format) {
+        File image = createTempFile(context, name);
+        try (FileOutputStream out = new FileOutputStream(image)) {
+            in.compress(format, 100, out);
+            return image.getAbsolutePath();
+        } catch (IOException e) {
+            Log.d("store temp image", "failed writing temp file for temporary image, name: " + name);
+            return null;
+        }
+    }
+
+    public static Bitmap loadImage(String path) {
+        try {
+            return BitmapFactory.decodeStream(new FileInputStream(path));
+        } catch (IOException e) {
+            Log.d("load image", "failed loading image from " + path);
+            return null;
+        }
+    }
+
+    public static Bitmap loadTempImage(Context context, String name) {
+        return loadImage(context.getCacheDir() + "/" + name);
+    }
+
+    // https://stackoverflow.com/a/59324801/8378787
+    public static int getComplementaryColor(int color) {
+        int R = color & 255;
+        int G = (color >> 8) & 255;
+        int B = (color >> 16) & 255;
+        int A = (color >> 24) & 255;
+        R = 255 - R;
+        G = 255 - G;
+        B = 255 - B;
+        return R + (G << 8) + (B << 16) + (A << 24);
+    }
+
+    // replace colors in the current theme
+    public static void patchColors(AppCompatActivity activity) {
+        Settings settings = new Settings(activity);
+        String color = settings.getColor();
+
+        Resources.Theme theme = activity.getTheme();
+        Resources resources = activity.getResources();
+        if (color.equals(resources.getString(R.string.settings_key_pink_theme))) {
+            theme.applyStyle(R.style.pink, true);
+        } else if (color.equals(resources.getString(R.string.settings_key_magenta_theme))) {
+            theme.applyStyle(R.style.magenta, true);
+        } else if (color.equals(resources.getString(R.string.settings_key_violet_theme))) {
+            theme.applyStyle(R.style.violet, true);
+        } else if (color.equals(resources.getString(R.string.settings_key_blue_theme))) {
+            theme.applyStyle(R.style.blue, true);
+        } else if (color.equals(resources.getString(R.string.settings_key_sky_blue_theme))) {
+            theme.applyStyle(R.style.skyblue, true);
+        } else if (color.equals(resources.getString(R.string.settings_key_green_theme))) {
+            theme.applyStyle(R.style.green, true);
+        } else if (color.equals(resources.getString(R.string.settings_key_brown_theme))) {
+            theme.applyStyle(R.style.brown, true);
+        } else if (color.equals(resources.getString(R.string.settings_key_catima_theme))) {
+            // catima theme is AppTheme itself, no dynamic colors nor applyStyle
+        } else {
+            // final catch all in case of invalid theme value from older versions
+            // also handles R.string.settings_key_system_theme
+            DynamicColors.applyIfAvailable(activity);
+        }
+
+        if (isDarkModeEnabled(activity) && settings.getOledDark()) {
+            theme.applyStyle(R.style.DarkBackground, true);
+        }
+    }
+
+    // XXX android 9 and below has issues with patched theme where the background becomes a
+    // rendering mess
+    // use after views are inflated
+    public static void postPatchColors(AppCompatActivity activity) {
+        TypedValue typedValue = new TypedValue();
+        activity.getTheme().resolveAttribute(android.R.attr.colorBackground, typedValue, true);
+        activity.findViewById(android.R.id.content).setBackgroundColor(typedValue.data);
+    }
 }

app/src/main/java/protect/card_locker/async/CompatCallable.java

@@ -0,0 +1,9 @@
+package protect.card_locker.async;
+
+import java.util.concurrent.Callable;
+
+public interface CompatCallable<T> extends Callable<T> {
+    void onPostExecute(Object result);
+
+    void onPreExecute();
+}

app/src/main/java/protect/card_locker/async/TaskHandler.java

@@ -0,0 +1,175 @@
+package protect.card_locker.async;
+
+import android.os.Handler;
+import android.os.Looper;
+
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * AsyncTask has been deprecated so this provides very rudimentary compatibility without
+ * needing to redo too many Parts.
+ * <p>
+ * However this is a much, much more cooperative Behaviour than before so
+ * the callers need to ensure we do NOT rely on forced cancellation and feed less into the
+ * ThreadPools so we don't OOM/Overload the Users device
+ * <p>
+ * This assumes single-threaded callers.
+ */
+public class TaskHandler {
+
+    public enum TYPE {
+        BARCODE,
+        IMPORT,
+        EXPORT
+    }
+
+    HashMap<TYPE, ThreadPoolExecutor> executors = generateExecutors();
+
+    final private HashMap<TYPE, LinkedList<Future<?>>> taskList = new HashMap<>();
+
+    private final Handler uiHandler = new Handler(Looper.getMainLooper());
+
+    private HashMap<TYPE, ThreadPoolExecutor> generateExecutors() {
+        HashMap<TYPE, ThreadPoolExecutor> initExecutors = new HashMap<>();
+        for (TYPE type : TYPE.values()) {
+            replaceExecutor(initExecutors, type, false, false);
+        }
+        return initExecutors;
+    }
+
+    /**
+     * Replaces (or initializes) an Executor with a clean (new) one
+     *
+     * @param executors Map Reference
+     * @param type      Which Queue
+     * @param flushOld  attempt shutdown
+     * @param waitOnOld wait for Termination
+     */
+    private void replaceExecutor(HashMap<TYPE, ThreadPoolExecutor> executors, TYPE type, Boolean flushOld, Boolean waitOnOld) {
+        ThreadPoolExecutor oldExecutor = executors.get(type);
+        if (oldExecutor != null) {
+            if (flushOld) {
+                oldExecutor.shutdownNow();
+            }
+            if (waitOnOld) {
+                try {
+                    //noinspection ResultOfMethodCallIgnored
+                    oldExecutor.awaitTermination(5, TimeUnit.SECONDS);
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+        executors.put(type, (ThreadPoolExecutor) Executors.newCachedThreadPool());
+    }
+
+    /**
+     * Queue a Pseudo-AsyncTask for execution
+     *
+     * @param type     Queue
+     * @param callable PseudoAsyncTask
+     */
+    public void executeTask(TYPE type, CompatCallable<?> callable) {
+        Runnable runner = () -> {
+            try {
+                // Run on the UI Thread
+                uiHandler.post(callable::onPreExecute);
+
+                // Background
+                final Object result = callable.call();
+
+                // Post results on UI Thread so we can show them
+                uiHandler.post(() -> {
+                    callable.onPostExecute(result);
+                });
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        };
+
+        LinkedList<Future<?>> list = taskList.get(type);
+
+        if (list == null) {
+            list = new LinkedList<>();
+        }
+
+        ThreadPoolExecutor executor = executors.get(type);
+
+        if (executor != null) {
+            Future<?> task = executor.submit(runner);
+            // Test Queue Cancellation:
+            // task.cancel(true);
+            list.push(task);
+            taskList.put(type, list);
+        }
+    }
+
+    /**
+     * This will attempt to cancel a currently running list of Tasks
+     * Useful to ignore scheduled tasks - but not able to hard-stop tasks that are running
+     *
+     * @param type                    Which Queue to target
+     * @param forceCancel             attempt to close the Queue and force-replace it after
+     * @param waitForFinish           wait and return after the old executor finished. Times out after 5s
+     * @param waitForCurrentlyRunning wait before cancelling tasks. Useful for tests.
+     */
+    public void flushTaskList(TYPE type, Boolean forceCancel, Boolean waitForFinish, Boolean waitForCurrentlyRunning) {
+        // Only used for Testing
+        if (waitForCurrentlyRunning) {
+            ThreadPoolExecutor oldExecutor = executors.get(type);
+
+            if (oldExecutor != null) {
+                try {
+                    //noinspection ResultOfMethodCallIgnored
+                    oldExecutor.awaitTermination(5, TimeUnit.SECONDS);
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+
+        // Attempt to cancel known Tasks and clean the List
+        LinkedList<Future<?>> tasks = taskList.get(type);
+        if (tasks != null) {
+            for (Future<?> task : tasks) {
+                if (!task.isDone() || !task.isCancelled()) {
+                    // Interrupt any Task we can
+                    task.cancel(true);
+                }
+            }
+        }
+        tasks = new LinkedList<>();
+        taskList.put(type, tasks);
+
+        if (forceCancel || waitForFinish) {
+            ThreadPoolExecutor oldExecutor = executors.get(type);
+
+            if (oldExecutor != null) {
+                if (forceCancel) {
+                    if (waitForFinish) {
+                        try {
+                            //noinspection ResultOfMethodCallIgnored
+                            oldExecutor.awaitTermination(5, TimeUnit.SECONDS);
+                        } catch (InterruptedException e) {
+                            e.printStackTrace();
+                        }
+                    }
+                    oldExecutor.shutdownNow();
+                    replaceExecutor(executors, type, true, false);
+                } else {
+                    try {
+                        //noinspection ResultOfMethodCallIgnored
+                        oldExecutor.awaitTermination(5, TimeUnit.SECONDS);
+                    } catch (InterruptedException e) {
+                        e.printStackTrace();
+                    }
+                }
+            }
+        }
+    }
+}

app/src/main/java/protect/card_locker/importexport/CSVHelpers.java

@@ -12,18 +12,13 @@ public class CSVHelpers {
      * if it is not null. Otherwise, a FormatException is thrown.
      */
     static String extractString(String key, CSVRecord record, String defaultValue)
-            throws FormatException
-    {
+            throws FormatException {
         String toReturn = defaultValue;
 
-        if(record.isMapped(key))
-        {
+        if (record.isMapped(key)) {
             toReturn = record.get(key);
-        }
-        else
-        {
-            if(defaultValue == null)
-            {
+        } else {
+            if (defaultValue == null) {
                 throw new FormatException("Field not used but expected: " + key);
             }
         }
@@ -38,25 +33,19 @@ public class CSVHelpers {
      * int, a FormatException is thrown.
      */
     static Integer extractInt(String key, CSVRecord record, boolean nullIsOk)
-            throws FormatException
-    {
-        if(record.isMapped(key) == false)
-        {
+            throws FormatException {
+        if (record.isMapped(key) == false) {
             throw new FormatException("Field not used but expected: " + key);
         }
 
         String value = record.get(key);
-        if(value.isEmpty() && nullIsOk)
-        {
+        if (value.isEmpty() && nullIsOk) {
             return null;
         }
 
-        try
-        {
+        try {
             return Integer.parseInt(record.get(key));
-        }
-        catch(NumberFormatException e)
-        {
+        } catch (NumberFormatException e) {
             throw new FormatException("Failed to parse field: " + key, e);
         }
     }
@@ -68,25 +57,19 @@ public class CSVHelpers {
      * int, a FormatException is thrown.
      */
     static Long extractLong(String key, CSVRecord record, boolean nullIsOk)
-            throws FormatException
-    {
-        if(record.isMapped(key) == false)
-        {
+            throws FormatException {
+        if (record.isMapped(key) == false) {
             throw new FormatException("Field not used but expected: " + key);
         }
 
         String value = record.get(key);
-        if(value.isEmpty() && nullIsOk)
-        {
+        if (value.isEmpty() && nullIsOk) {
             return null;
         }
 
-        try
-        {
+        try {
             return Long.parseLong(record.get(key));
-        }
-        catch(NumberFormatException e)
-        {
+        } catch (NumberFormatException e) {
             throw new FormatException("Failed to parse field: " + key, e);
         }
     }

app/src/main/java/protect/card_locker/importexport/CatimaExporter.java

@@ -2,10 +2,12 @@ package protect.card_locker.importexport;
 
 import android.content.Context;
 import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
 import android.graphics.Bitmap;
 
 import net.lingala.zip4j.io.outputstream.ZipOutputStream;
 import net.lingala.zip4j.model.ZipParameters;
+import net.lingala.zip4j.model.enums.EncryptionMethod;
 import net.lingala.zip4j.util.InternalZipConstants;
 
 import org.apache.commons.csv.CSVFormat;
@@ -21,6 +23,7 @@ import java.nio.charset.StandardCharsets;
 
 import protect.card_locker.DBHelper;
 import protect.card_locker.Group;
+import protect.card_locker.ImageLocationType;
 import protect.card_locker.LoyaltyCard;
 import protect.card_locker.Utils;
 
@@ -28,25 +31,28 @@ import protect.card_locker.Utils;
  * Class for exporting the database into CSV (Comma Separate Values)
  * format.
  */
-public class CatimaExporter implements Exporter
-{
-    public void exportData(Context context, DBHelper db, OutputStream output) throws IOException, InterruptedException
-    {
+public class CatimaExporter implements Exporter {
+    public void exportData(Context context, SQLiteDatabase database, OutputStream output, char[] password) throws IOException, InterruptedException {
         // Necessary vars
         int readLen;
         byte[] readBuffer = new byte[InternalZipConstants.BUFF_SIZE];
 
         // Create zip output stream
-        ZipOutputStream zipOutputStream = new ZipOutputStream(output);
+        ZipOutputStream zipOutputStream;
+
+        if (password != null && password.length > 0) {
+            zipOutputStream = new ZipOutputStream(output, password);
+        } else {
+            zipOutputStream = new ZipOutputStream(output);
+        }
 
         // Generate CSV
         ByteArrayOutputStream catimaOutputStream = new ByteArrayOutputStream();
         OutputStreamWriter catimaOutputStreamWriter = new OutputStreamWriter(catimaOutputStream, StandardCharsets.UTF_8);
-        writeCSV(db, catimaOutputStreamWriter);
+        writeCSV(database, catimaOutputStreamWriter);
 
         // Add CSV to zip file
-        ZipParameters csvZipParameters = new ZipParameters();
-        csvZipParameters.setFileNameInZip("catima.csv");
+        ZipParameters csvZipParameters = createZipParameters("catima.csv", password);
         zipOutputStream.putNextEntry(csvZipParameters);
         InputStream csvInputStream = new ByteArrayInputStream(catimaOutputStream.toByteArray());
         while ((readLen = csvInputStream.read(readBuffer)) != -1) {
@@ -55,24 +61,17 @@ public class CatimaExporter implements Exporter
         zipOutputStream.closeEntry();
 
         // Loop over all cards again
-        Cursor cardCursor = db.getLoyaltyCardCursor();
-        while(cardCursor.moveToNext())
-        {
+        Cursor cardCursor = DBHelper.getLoyaltyCardCursor(database);
+        while (cardCursor.moveToNext()) {
             // For each card
             LoyaltyCard card = LoyaltyCard.toLoyaltyCard(cardCursor);
 
-            // Prepare looping over both front and back image
-            boolean[] frontValues = new boolean[2];
-            frontValues[0] = true;
-            frontValues[1] = false;
-
             // For each image
-            for (boolean front : frontValues) {
+            for (ImageLocationType imageLocationType : ImageLocationType.values()) {
                 // If it exists, add to the .zip file
-                Bitmap image = Utils.retrieveCardImage(context, card.id, front);
+                Bitmap image = Utils.retrieveCardImage(context, card.id, imageLocationType);
                 if (image != null) {
-                    ZipParameters imageZipParameters = new ZipParameters();
-                    imageZipParameters.setFileNameInZip(Utils.getCardImageFileName(card.id, front));
+                    ZipParameters imageZipParameters = createZipParameters(Utils.getCardImageFileName(card.id, imageLocationType), password);
                     zipOutputStream.putNextEntry(imageZipParameters);
                     InputStream imageInputStream = new ByteArrayInputStream(Utils.bitmapToByteArray(image));
                     while ((readLen = imageInputStream.read(readBuffer)) != -1) {
@@ -86,7 +85,17 @@ public class CatimaExporter implements Exporter
         zipOutputStream.close();
     }
 
-    private void writeCSV(DBHelper db, OutputStreamWriter output) throws IOException, InterruptedException {
+    private ZipParameters createZipParameters(String fileName, char[] password) {
+        ZipParameters zipParameters = new ZipParameters();
+        zipParameters.setFileNameInZip(fileName);
+        if (password != null && password.length > 0) {
+            zipParameters.setEncryptFiles(true);
+            zipParameters.setEncryptionMethod(EncryptionMethod.AES);
+        }
+        return zipParameters;
+    }
+
+    private void writeCSV(SQLiteDatabase database, OutputStreamWriter output) throws IOException, InterruptedException {
         CSVPrinter printer = new CSVPrinter(output, CSVFormat.RFC4180);
 
         // Print the version
@@ -97,16 +106,14 @@ public class CatimaExporter implements Exporter
         // Print the header for groups
         printer.printRecord(DBHelper.LoyaltyCardDbGroups.ID);
 
-        Cursor groupCursor = db.getGroupCursor();
+        Cursor groupCursor = DBHelper.getGroupCursor(database);
 
-        while(groupCursor.moveToNext())
-        {
+        while (groupCursor.moveToNext()) {
             Group group = Group.toGroup(groupCursor);
 
             printer.printRecord(group._id);
 
-            if(Thread.currentThread().isInterrupted())
-            {
+            if (Thread.currentThread().isInterrupted()) {
                 throw new InterruptedException();
             }
         }
@@ -130,10 +137,9 @@ public class CatimaExporter implements Exporter
                 DBHelper.LoyaltyCardDbIds.STAR_STATUS,
                 DBHelper.LoyaltyCardDbIds.LAST_USED);
 
-        Cursor cardCursor = db.getLoyaltyCardCursor();
+        Cursor cardCursor = DBHelper.getLoyaltyCardCursor(database);
 
-        while(cardCursor.moveToNext())
-        {
+        while (cardCursor.moveToNext()) {
             LoyaltyCard card = LoyaltyCard.toLoyaltyCard(cardCursor);
 
             printer.printRecord(card.id,
@@ -149,8 +155,7 @@ public class CatimaExporter implements Exporter
                     card.starStatus,
                     card.lastUsed);
 
-            if(Thread.currentThread().isInterrupted())
-            {
+            if (Thread.currentThread().isInterrupted()) {
                 throw new InterruptedException();
             }
         }
@@ -164,18 +169,16 @@ public class CatimaExporter implements Exporter
         printer.printRecord(DBHelper.LoyaltyCardDbIdsGroups.cardID,
                 DBHelper.LoyaltyCardDbIdsGroups.groupID);
 
-        Cursor cardCursor2 = db.getLoyaltyCardCursor();
+        Cursor cardCursor2 = DBHelper.getLoyaltyCardCursor(database);
 
-        while(cardCursor2.moveToNext())
-        {
+        while (cardCursor2.moveToNext()) {
             LoyaltyCard card = LoyaltyCard.toLoyaltyCard(cardCursor2);
 
-            for (Group group : db.getLoyaltyCardGroups(card.id)) {
+            for (Group group : DBHelper.getLoyaltyCardGroups(database, card.id)) {
                 printer.printRecord(card.id, group._id);
             }
 
-            if(Thread.currentThread().isInterrupted())
-            {
+            if (Thread.currentThread().isInterrupted()) {
                 throw new InterruptedException();
             }
         }

app/src/main/java/protect/card_locker/importexport/CatimaImporter.java

@@ -4,8 +4,6 @@ import android.content.Context;
 import android.database.sqlite.SQLiteDatabase;
 import android.net.Uri;
 
-import com.google.zxing.BarcodeFormat;
-
 import net.lingala.zip4j.io.inputstream.ZipInputStream;
 import net.lingala.zip4j.model.LocalFileHeader;
 
@@ -37,18 +35,17 @@ import protect.card_locker.ZipUtils;
 /**
  * Class for importing a database from CSV (Comma Separate Values)
  * formatted data.
- *
+ * <p>
  * The database's loyalty cards are expected to appear in the CSV data.
  * A header is expected for the each table showing the names of the columns.
  */
-public class CatimaImporter implements Importer
-{
-    public void importData(Context context, DBHelper db, InputStream input, char[] password) throws IOException, FormatException, InterruptedException {
+public class CatimaImporter implements Importer {
+    public void importData(Context context, SQLiteDatabase database, InputStream input, char[] password) throws IOException, FormatException, InterruptedException {
         InputStream bufferedInputStream = new BufferedInputStream(input);
         bufferedInputStream.mark(100);
 
         // First, check if this is a zip file
-        ZipInputStream zipInputStream = new ZipInputStream(bufferedInputStream);
+        ZipInputStream zipInputStream = new ZipInputStream(bufferedInputStream, password);
 
         boolean isZipFile = false;
 
@@ -58,7 +55,7 @@ public class CatimaImporter implements Importer
 
             String fileName = Uri.parse(localFileHeader.getFileName()).getLastPathSegment();
             if (fileName.equals("catima.csv")) {
-                importCSV(context, db, new ByteArrayInputStream(ZipUtils.read(zipInputStream).getBytes(StandardCharsets.UTF_8)));
+                importCSV(context, database, new ByteArrayInputStream(ZipUtils.read(zipInputStream).getBytes(StandardCharsets.UTF_8)));
             } else if (fileName.endsWith(".png")) {
                 Utils.saveCardImage(context, ZipUtils.readImage(zipInputStream), fileName);
             } else {
@@ -69,11 +66,11 @@ public class CatimaImporter implements Importer
         if (!isZipFile) {
             // This is not a zip file, try importing as bare CSV
             bufferedInputStream.reset();
-            importCSV(context, db, bufferedInputStream);
+            importCSV(context, database, bufferedInputStream);
         }
     }
 
-    public void importCSV(Context context, DBHelper db, InputStream input) throws IOException, FormatException, InterruptedException {
+    public void importCSV(Context context, SQLiteDatabase database, InputStream input) throws IOException, FormatException, InterruptedException {
         BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(input, StandardCharsets.UTF_8));
 
         bufferedReader.mark(100);
@@ -90,10 +87,10 @@ public class CatimaImporter implements Importer
 
         switch (version) {
             case 1:
-                parseV1(context, db, bufferedReader);
+                parseV1(context, database, bufferedReader);
                 break;
             case 2:
-                parseV2(context, db, bufferedReader);
+                parseV2(context, database, bufferedReader);
                 break;
             default:
                 throw new FormatException(String.format("No code to parse version %s", version));
@@ -102,44 +99,25 @@ public class CatimaImporter implements Importer
         bufferedReader.close();
     }
 
-    public void parseV1(Context context, DBHelper db, BufferedReader input) throws IOException, FormatException, InterruptedException
-    {
-        final CSVParser parser = new CSVParser(input, CSVFormat.RFC4180.withHeader());
+    public void parseV1(Context context, SQLiteDatabase database, BufferedReader input) throws IOException, FormatException, InterruptedException {
+        final CSVParser parser = new CSVParser(input, CSVFormat.RFC4180.builder().setHeader().build());
 
-        SQLiteDatabase database = db.getWritableDatabase();
-        database.beginTransaction();
+        try {
+            for (CSVRecord record : parser) {
+                importLoyaltyCard(context, database, record);
 
-        try
-        {
-            for (CSVRecord record : parser)
-            {
-                importLoyaltyCard(context, database, db, record);
-
-                if(Thread.currentThread().isInterrupted())
-                {
+                if (Thread.currentThread().isInterrupted()) {
                     throw new InterruptedException();
                 }
             }
 
             parser.close();
-            database.setTransactionSuccessful();
-        }
-        catch(IllegalArgumentException|IllegalStateException e)
-        {
+        } catch (IllegalArgumentException | IllegalStateException e) {
             throw new FormatException("Issue parsing CSV data", e);
         }
-        finally
-        {
-            database.endTransaction();
-            database.close();
-        }
     }
 
-    public void parseV2(Context context, DBHelper db, BufferedReader input) throws IOException, FormatException, InterruptedException
-    {
-        SQLiteDatabase database = db.getWritableDatabase();
-        database.beginTransaction();
-
+    public void parseV2(Context context, SQLiteDatabase database, BufferedReader input) throws IOException, FormatException, InterruptedException {
         Integer part = 0;
         String stringPart = "";
 
@@ -157,7 +135,7 @@ public class CatimaImporter implements Importer
                             break;
                         case 1:
                             try {
-                                parseV2Groups(db, database, stringPart);
+                                parseV2Groups(database, stringPart);
                                 sectionParsed = true;
                             } catch (FormatException e) {
                                 // We may have a multiline field, try again
@@ -165,7 +143,7 @@ public class CatimaImporter implements Importer
                             break;
                         case 2:
                             try {
-                                parseV2Cards(context, db, database, stringPart);
+                                parseV2Cards(context, database, stringPart);
                                 sectionParsed = true;
                             } catch (FormatException e) {
                                 // We may have a multiline field, try again
@@ -173,7 +151,7 @@ public class CatimaImporter implements Importer
                             break;
                         case 3:
                             try {
-                                parseV2CardGroups(db, database, stringPart);
+                                parseV2CardGroups(database, stringPart);
                                 sectionParsed = true;
                             } catch (FormatException e) {
                                 // We may have a multiline field, try again
@@ -197,19 +175,14 @@ public class CatimaImporter implements Importer
                     stringPart += tmp + "\n";
                 }
             }
-            database.setTransactionSuccessful();
         } catch (FormatException e) {
             throw new FormatException("Issue parsing CSV data", e);
-        } finally {
-            database.endTransaction();
-            database.close();
         }
     }
 
-    public void parseV2Groups(DBHelper db, SQLiteDatabase database, String data) throws IOException, FormatException, InterruptedException
-    {
+    public void parseV2Groups(SQLiteDatabase database, String data) throws IOException, FormatException, InterruptedException {
         // Parse groups
-        final CSVParser groupParser = new CSVParser(new StringReader(data), CSVFormat.RFC4180.withHeader());
+        final CSVParser groupParser = new CSVParser(new StringReader(data), CSVFormat.RFC4180.builder().setHeader().build());
 
         List<CSVRecord> records = new ArrayList<>();
 
@@ -228,14 +201,13 @@ public class CatimaImporter implements Importer
         }
 
         for (CSVRecord record : records) {
-            importGroup(database, db, record);
+            importGroup(database, record);
         }
     }
 
-    public void parseV2Cards(Context context, DBHelper db, SQLiteDatabase database, String data) throws IOException, FormatException, InterruptedException
-    {
+    public void parseV2Cards(Context context, SQLiteDatabase database, String data) throws IOException, FormatException, InterruptedException {
         // Parse cards
-        final CSVParser cardParser = new CSVParser(new StringReader(data), CSVFormat.RFC4180.withHeader());
+        final CSVParser cardParser = new CSVParser(new StringReader(data), CSVFormat.RFC4180.builder().setHeader().build());
 
         List<CSVRecord> records = new ArrayList<>();
 
@@ -254,14 +226,13 @@ public class CatimaImporter implements Importer
         }
 
         for (CSVRecord record : records) {
-            importLoyaltyCard(context, database, db, record);
+            importLoyaltyCard(context, database, record);
         }
     }
 
-    public void parseV2CardGroups(DBHelper db, SQLiteDatabase database, String data) throws IOException, FormatException, InterruptedException
-    {
+    public void parseV2CardGroups(SQLiteDatabase database, String data) throws IOException, FormatException, InterruptedException {
         // Parse card group mappings
-        final CSVParser cardGroupParser = new CSVParser(new StringReader(data), CSVFormat.RFC4180.withHeader());
+        final CSVParser cardGroupParser = new CSVParser(new StringReader(data), CSVFormat.RFC4180.builder().setHeader().build());
 
         List<CSVRecord> records = new ArrayList<>();
 
@@ -280,7 +251,7 @@ public class CatimaImporter implements Importer
         }
 
         for (CSVRecord record : records) {
-            importCardGroupMapping(database, db, record);
+            importCardGroupMapping(database, record);
         }
     }
 
@@ -288,14 +259,12 @@ public class CatimaImporter implements Importer
      * Import a single loyalty card into the database using the given
      * session.
      */
-    private void importLoyaltyCard(Context context, SQLiteDatabase database, DBHelper helper, CSVRecord record)
-            throws IOException, FormatException
-    {
+    private void importLoyaltyCard(Context context, SQLiteDatabase database, CSVRecord record)
+            throws IOException, FormatException {
         int id = CSVHelpers.extractInt(DBHelper.LoyaltyCardDbIds.ID, record, false);
 
         String store = CSVHelpers.extractString(DBHelper.LoyaltyCardDbIds.STORE, record, "");
-        if(store.isEmpty())
-        {
+        if (store.isEmpty()) {
             throw new FormatException("No store listed, but is required");
         }
 
@@ -303,12 +272,13 @@ public class CatimaImporter implements Importer
         Date expiry = null;
         try {
             expiry = new Date(CSVHelpers.extractLong(DBHelper.LoyaltyCardDbIds.EXPIRY, record, true));
-        } catch (NullPointerException | FormatException e) { }
+        } catch (NullPointerException | FormatException e) {
+        }
 
         BigDecimal balance;
         try {
             balance = new BigDecimal(CSVHelpers.extractString(DBHelper.LoyaltyCardDbIds.BALANCE, record, null));
-        } catch (FormatException _e ) {
+        } catch (FormatException _e) {
             // These fields did not exist in versions 1.8.1 and before
             // We catch this exception so we can still import old backups
             balance = new BigDecimal("0");
@@ -316,33 +286,29 @@ public class CatimaImporter implements Importer
 
         Currency balanceType = null;
         String unparsedBalanceType = CSVHelpers.extractString(DBHelper.LoyaltyCardDbIds.BALANCE_TYPE, record, "");
-        if(!unparsedBalanceType.isEmpty()) {
+        if (!unparsedBalanceType.isEmpty()) {
             balanceType = Currency.getInstance(unparsedBalanceType);
         }
 
         String cardId = CSVHelpers.extractString(DBHelper.LoyaltyCardDbIds.CARD_ID, record, "");
-        if(cardId.isEmpty())
-        {
+        if (cardId.isEmpty()) {
             throw new FormatException("No card ID listed, but is required");
         }
 
         String barcodeId = CSVHelpers.extractString(DBHelper.LoyaltyCardDbIds.BARCODE_ID, record, "");
-        if(barcodeId.isEmpty())
-        {
+        if (barcodeId.isEmpty()) {
             barcodeId = null;
         }
 
         CatimaBarcode barcodeType = null;
         String unparsedBarcodeType = CSVHelpers.extractString(DBHelper.LoyaltyCardDbIds.BARCODE_TYPE, record, "");
-        if(!unparsedBarcodeType.isEmpty())
-        {
+        if (!unparsedBarcodeType.isEmpty()) {
             barcodeType = CatimaBarcode.fromName(unparsedBarcodeType);
         }
 
         Integer headerColor = null;
 
-        if(record.isMapped(DBHelper.LoyaltyCardDbIds.HEADER_COLOR))
-        {
+        if (record.isMapped(DBHelper.LoyaltyCardDbIds.HEADER_COLOR)) {
             headerColor = CSVHelpers.extractInt(DBHelper.LoyaltyCardDbIds.HEADER_COLOR, record, true);
         }
 
@@ -363,33 +329,29 @@ public class CatimaImporter implements Importer
             // We catch this exception so we can still import old backups
         }
 
-        helper.insertLoyaltyCard(database, id, store, note, expiry, balance, balanceType, cardId, barcodeId, barcodeType, headerColor, starStatus, lastUsed);
+        DBHelper.insertLoyaltyCard(database, id, store, note, expiry, balance, balanceType, cardId, barcodeId, barcodeType, headerColor, starStatus, lastUsed);
     }
 
     /**
      * Import a single group into the database using the given
      * session.
      */
-    private void importGroup(SQLiteDatabase database, DBHelper helper, CSVRecord record)
-            throws IOException, FormatException
-    {
+    private void importGroup(SQLiteDatabase database, CSVRecord record) throws FormatException {
         String id = CSVHelpers.extractString(DBHelper.LoyaltyCardDbGroups.ID, record, null);
 
-        helper.insertGroup(database, id);
+        DBHelper.insertGroup(database, id);
     }
 
     /**
      * Import a single card to group mapping into the database using the given
      * session.
      */
-    private void importCardGroupMapping(SQLiteDatabase database, DBHelper helper, CSVRecord record)
-            throws IOException, FormatException
-    {
+    private void importCardGroupMapping(SQLiteDatabase database, CSVRecord record) throws FormatException {
         Integer cardId = CSVHelpers.extractInt(DBHelper.LoyaltyCardDbIdsGroups.cardID, record, false);
         String groupId = CSVHelpers.extractString(DBHelper.LoyaltyCardDbIdsGroups.groupID, record, null);
 
-        List<Group> cardGroups = helper.getLoyaltyCardGroups(cardId);
-        cardGroups.add(helper.getGroup(groupId));
-        helper.setLoyaltyCardGroups(database, cardId, cardGroups);
+        List<Group> cardGroups = DBHelper.getLoyaltyCardGroups(database, cardId);
+        cardGroups.add(DBHelper.getGroup(database, groupId));
+        DBHelper.setLoyaltyCardGroups(database, cardId, cardGroups);
     }
 }

app/src/main/java/protect/card_locker/importexport/DataFormat.java

@@ -1,10 +1,8 @@
 package protect.card_locker.importexport;
 
-public enum DataFormat
-{
+public enum DataFormat {
     Catima,
     Fidme,
     Stocard,
-    VoucherVault
-    ;
+    VoucherVault;
 }

app/src/main/java/protect/card_locker/importexport/Exporter.java

@@ -1,21 +1,20 @@
 package protect.card_locker.importexport;
 
 import android.content.Context;
+import android.database.sqlite.SQLiteDatabase;
 
 import java.io.IOException;
 import java.io.OutputStream;
 
-import protect.card_locker.DBHelper;
-
 /**
  * Interface for a class which can export the contents of the database
  * in a given format.
  */
-public interface Exporter
-{
+public interface Exporter {
     /**
      * Export the database to the output stream in a given format.
+     *
      * @throws IOException
      */
-    void exportData(Context context, DBHelper db, OutputStream output) throws IOException, InterruptedException;
+    void exportData(Context context, SQLiteDatabase database, OutputStream output, char[] password) throws IOException, InterruptedException;
 }

app/src/main/java/protect/card_locker/importexport/FidmeImporter.java

@@ -3,8 +3,6 @@ package protect.card_locker.importexport;
 import android.content.Context;
 import android.database.sqlite.SQLiteDatabase;
 
-import com.google.zxing.BarcodeFormat;
-
 import net.lingala.zip4j.io.inputstream.ZipInputStream;
 import net.lingala.zip4j.model.LocalFileHeader;
 
@@ -23,18 +21,16 @@ import java.text.ParseException;
 import protect.card_locker.CatimaBarcode;
 import protect.card_locker.DBHelper;
 import protect.card_locker.FormatException;
-import protect.card_locker.Utils;
 
 /**
  * Class for importing a database from CSV (Comma Separate Values)
  * formatted data.
- *
+ * <p>
  * The database's loyalty cards are expected to appear in the CSV data.
  * A header is expected for the each table showing the names of the columns.
  */
-public class FidmeImporter implements Importer
-{
-    public void importData(Context context, DBHelper db, InputStream input, char[] password) throws IOException, FormatException, JSONException, ParseException {
+public class FidmeImporter implements Importer {
+    public void importData(Context context, SQLiteDatabase database, InputStream input, char[] password) throws IOException, FormatException, JSONException, ParseException {
         // We actually retrieve a .zip file
         ZipInputStream zipInputStream = new ZipInputStream(input, password);
 
@@ -56,14 +52,11 @@ public class FidmeImporter implements Importer
             throw new FormatException("Couldn't find loyalty_programs.csv in zip file or it is empty");
         }
 
-        SQLiteDatabase database = db.getWritableDatabase();
-        database.beginTransaction();
-
-        final CSVParser fidmeParser = new CSVParser(new StringReader(loyaltyCards.toString()), CSVFormat.RFC4180.withDelimiter(';').withHeader());
+        final CSVParser fidmeParser = new CSVParser(new StringReader(loyaltyCards.toString()), CSVFormat.RFC4180.builder().setDelimiter(';').setHeader().build());
 
         try {
             for (CSVRecord record : fidmeParser) {
-                importLoyaltyCard(database, db, record);
+                importLoyaltyCard(database, record);
 
                 if (Thread.currentThread().isInterrupted()) {
                     throw new InterruptedException();
@@ -75,10 +68,6 @@ public class FidmeImporter implements Importer
             fidmeParser.close();
         }
 
-        database.setTransactionSuccessful();
-        database.endTransaction();
-        database.close();
-
         zipInputStream.close();
     }
 
@@ -86,9 +75,8 @@ public class FidmeImporter implements Importer
      * Import a single loyalty card into the database using the given
      * session.
      */
-    private void importLoyaltyCard(SQLiteDatabase database, DBHelper helper, CSVRecord record)
-            throws IOException, FormatException
-    {
+    private void importLoyaltyCard(SQLiteDatabase database, CSVRecord record)
+            throws FormatException {
         // A loyalty card export from Fidme contains the following fields:
         // Retailer (store name)
         // Program (program name)
@@ -100,8 +88,7 @@ public class FidmeImporter implements Importer
         // The store is called Retailer
         String store = CSVHelpers.extractString("Retailer", record, "");
 
-        if (store.isEmpty())
-        {
+        if (store.isEmpty()) {
             throw new FormatException("No store listed, but is required");
         }
 
@@ -121,8 +108,7 @@ public class FidmeImporter implements Importer
 
         // The ID is called reference
         String cardId = CSVHelpers.extractString("Reference", record, "");
-        if(cardId.isEmpty())
-        {
+        if (cardId.isEmpty()) {
             throw new FormatException("No card ID listed, but is required");
         }
 
@@ -136,6 +122,6 @@ public class FidmeImporter implements Importer
 
         // TODO: Front and back image
 
-        helper.insertLoyaltyCard(database, store, note, null, BigDecimal.valueOf(0), null, cardId, null, barcodeType, null, starStatus, null);
+        DBHelper.insertLoyaltyCard(database, store, note, null, BigDecimal.valueOf(0), null, cardId, null, barcodeType, null, starStatus, null);
     }
 }

app/src/main/java/protect/card_locker/importexport/ImportExportResult.java

@@ -1,9 +1,23 @@
 package protect.card_locker.importexport;
 
-public enum ImportExportResult
-{
-    Success,
-    GenericFailure,
-    BadPassword
-    ;
+public class ImportExportResult {
+    private ImportExportResultType resultType;
+    private String developerDetails;
+
+    public ImportExportResult(ImportExportResultType resultType) {
+        this(resultType, null);
+    }
+
+    public ImportExportResult(ImportExportResultType resultType, String developerDetails) {
+        this.resultType = resultType;
+        this.developerDetails = developerDetails;
+    }
+
+    public ImportExportResultType resultType() {
+        return resultType;
+    }
+
+    public String developerDetails() {
+        return developerDetails;
+    }
 }

app/src/main/java/protect/card_locker/importexport/ImportExportResultType.java

@@ -0,0 +1,7 @@
+package protect.card_locker.importexport;
+
+public enum ImportExportResultType {
+    Success,
+    GenericFailure,
+    BadPassword;
+}

app/src/main/java/protect/card_locker/importexport/Importer.java

@@ -1,6 +1,7 @@
 package protect.card_locker.importexport;
 
 import android.content.Context;
+import android.database.sqlite.SQLiteDatabase;
 
 import org.json.JSONException;
 
@@ -8,20 +9,19 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.text.ParseException;
 
-import protect.card_locker.DBHelper;
 import protect.card_locker.FormatException;
 
 /**
  * Interface for a class which can import the contents of a stream
  * into the database.
  */
-public interface Importer
-{
+public interface Importer {
     /**
      * Import data from the input stream in a given format into
      * the database.
+     *
      * @throws IOException
      * @throws FormatException
      */
-    void importData(Context context, DBHelper db, InputStream input, char[] password) throws IOException, FormatException, InterruptedException, JSONException, ParseException;
+    void importData(Context context, SQLiteDatabase database, InputStream input, char[] password) throws IOException, FormatException, InterruptedException, JSONException, ParseException;
 }

app/src/main/java/protect/card_locker/importexport/MultiFormatExporter.java

@@ -1,33 +1,29 @@
 package protect.card_locker.importexport;
 
 import android.content.Context;
+import android.database.sqlite.SQLiteDatabase;
 import android.util.Log;
 
 import java.io.IOException;
 import java.io.OutputStream;
 
-import protect.card_locker.DBHelper;
-
-public class MultiFormatExporter
-{
+public class MultiFormatExporter {
     private static final String TAG = "Catima";
 
     /**
      * Attempts to export data to the output stream in the
      * given format, if possible.
-     *
+     * <p>
      * The output stream is closed on success.
      *
      * @return ImportExportResult.Success if the database was successfully exported,
      * another ImportExportResult otherwise. If not Success, partial data may have been
      * written to the output stream, and it should be discarded.
      */
-    public static ImportExportResult exportData(Context context, DBHelper db, OutputStream output, DataFormat format)
-    {
+    public static ImportExportResult exportData(Context context, SQLiteDatabase database, OutputStream output, DataFormat format, char[] password) {
         Exporter exporter = null;
 
-        switch(format)
-        {
+        switch (format) {
             case Catima:
                 exporter = new CatimaExporter();
                 break;
@@ -36,28 +32,20 @@ public class MultiFormatExporter
                 break;
         }
 
-        if(exporter != null)
-        {
-            try
-            {
-                exporter.exportData(context, db, output);
-                return ImportExportResult.Success;
-            }
-            catch(IOException e)
-            {
-                Log.e(TAG, "Failed to export data", e);
-            }
-            catch(InterruptedException e)
-            {
+        String error;
+        if (exporter != null) {
+            try {
+                exporter.exportData(context, database, output, password);
+                return new ImportExportResult(ImportExportResultType.Success);
+            } catch (Exception e) {
                 Log.e(TAG, "Failed to export data", e);
+                error = e.toString();
             }
+        } else {
+            error = "Unsupported data format exported: " + format.name();
+            Log.e(TAG, error);
+        }
 
-            return ImportExportResult.GenericFailure;
-        }
-        else
-        {
-            Log.e(TAG, "Unsupported data format exported: " + format.name());
-            return ImportExportResult.GenericFailure;
-        }
+        return new ImportExportResult(ImportExportResultType.GenericFailure, error);
     }
 }

app/src/main/java/protect/card_locker/importexport/MultiFormatImporter.java

@@ -1,6 +1,7 @@
 package protect.card_locker.importexport;
 
 import android.content.Context;
+import android.database.sqlite.SQLiteDatabase;
 import android.util.Log;
 
 import net.lingala.zip4j.exception.ZipException;
@@ -11,17 +12,15 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.text.ParseException;
 
-import protect.card_locker.DBHelper;
 import protect.card_locker.FormatException;
 
-public class MultiFormatImporter
-{
+public class MultiFormatImporter {
     private static final String TAG = "Catima";
 
     /**
      * Attempts to import data from the input stream of the
      * given format into the database.
-     *
+     * <p>
      * The input stream is not closed, and doing so is the
      * responsibility of the caller.
      *
@@ -29,12 +28,10 @@ public class MultiFormatImporter
      * or another result otherwise. If no Success, no data was written to
      * the database.
      */
-    public static ImportExportResult importData(Context context, DBHelper db, InputStream input, DataFormat format, char[] password)
-    {
+    public static ImportExportResult importData(Context context, SQLiteDatabase database, InputStream input, DataFormat format, char[] password) {
         Importer importer = null;
 
-        switch(format)
-        {
+        switch (format) {
             case Catima:
                 importer = new CatimaImporter();
                 break;
@@ -49,28 +46,26 @@ public class MultiFormatImporter
                 break;
         }
 
-        if (importer != null)
-        {
-            try
-            {
-                importer.importData(context, db, input, password);
-                return ImportExportResult.Success;
-            }
-            catch(ZipException e)
-            {
-                return ImportExportResult.BadPassword;
-            }
-            catch(IOException | FormatException | InterruptedException | JSONException | ParseException | NullPointerException e)
-            {
+        String error = null;
+        if (importer != null) {
+            database.beginTransaction();
+            try {
+                importer.importData(context, database, input, password);
+                database.setTransactionSuccessful();
+                return new ImportExportResult(ImportExportResultType.Success);
+            } catch (ZipException e) {
+                return new ImportExportResult(ImportExportResultType.BadPassword);
+            } catch (IOException | FormatException | InterruptedException | JSONException | ParseException | NullPointerException e) {
                 Log.e(TAG, "Failed to import data", e);
+                error = e.toString();
+            } finally {
+                database.endTransaction();
             }
-
-        }
-        else
-        {
-            Log.e(TAG, "Unsupported data format imported: " + format.name());
+        } else {
+            error = "Unsupported data format imported: " + format.name();
+            Log.e(TAG, error);
         }
 
-        return ImportExportResult.GenericFailure;
+        return new ImportExportResult(ImportExportResultType.GenericFailure, error);
     }
 }

app/src/main/java/protect/card_locker/importexport/StocardImporter.java

@@ -26,6 +26,7 @@ import java.util.HashMap;
 import protect.card_locker.CatimaBarcode;
 import protect.card_locker.DBHelper;
 import protect.card_locker.FormatException;
+import protect.card_locker.ImageLocationType;
 import protect.card_locker.R;
 import protect.card_locker.Utils;
 import protect.card_locker.ZipUtils;
@@ -33,22 +34,19 @@ import protect.card_locker.ZipUtils;
 /**
  * Class for importing a database from CSV (Comma Separate Values)
  * formatted data.
- *
+ * <p>
  * The database's loyalty cards are expected to appear in the CSV data.
  * A header is expected for the each table showing the names of the columns.
  */
-public class StocardImporter implements Importer
-{
-    public void importData(Context context, DBHelper db, InputStream input, char[] password) throws IOException, FormatException, JSONException, ParseException {
+public class StocardImporter implements Importer {
+    public void importData(Context context, SQLiteDatabase database, InputStream input, char[] password) throws IOException, FormatException, JSONException, ParseException {
         HashMap<String, HashMap<String, Object>> loyaltyCardHashMap = new HashMap<>();
         HashMap<String, HashMap<String, String>> providers = new HashMap<>();
 
-        final CSVParser parser = new CSVParser(new InputStreamReader(context.getResources().openRawResource(R.raw.stocard_stores), StandardCharsets.UTF_8), CSVFormat.RFC4180.withHeader());
+        final CSVParser parser = new CSVParser(new InputStreamReader(context.getResources().openRawResource(R.raw.stocard_stores), StandardCharsets.UTF_8), CSVFormat.RFC4180.builder().setHeader().build());
 
-        try
-        {
-            for (CSVRecord record : parser)
-            {
+        try {
+            for (CSVRecord record : parser) {
                 HashMap<String, String> recordData = new HashMap<>();
                 recordData.put("name", record.get("name"));
                 recordData.put("barcodeFormat", record.get("barcodeFormat"));
@@ -57,7 +55,7 @@ public class StocardImporter implements Importer
             }
 
             parser.close();
-        } catch(IllegalArgumentException|IllegalStateException e) {
+        } catch (IllegalArgumentException | IllegalStateException e) {
             throw new FormatException("Issue parsing CSV data", e);
         }
 
@@ -72,7 +70,7 @@ public class StocardImporter implements Importer
             String[] nameParts = fileName.split("/");
 
             if (providersFileName == null) {
-                providersFileName = new String[] {
+                providersFileName = new String[]{
                         nameParts[0],
                         "sync",
                         "data",
@@ -80,7 +78,7 @@ public class StocardImporter implements Importer
                         nameParts[0],
                         "analytics-properties.json"
                 };
-                cardBaseName = new String[] {
+                cardBaseName = new String[]{
                         nameParts[0],
                         "sync",
                         "data",
@@ -111,19 +109,19 @@ public class StocardImporter implements Importer
                                 cardName,
                                 "_providerId",
                                 jsonObject
-                                    .getJSONObject("input_provider_reference")
-                                    .getString("identifier")
-                                    .substring("/loyalty-card-providers/".length())
+                                        .getJSONObject("input_provider_reference")
+                                        .getString("identifier")
+                                        .substring("/loyalty-card-providers/".length())
                         );
 
-                        try {
+                        if (jsonObject.has("input_barcode_format")) {
                             loyaltyCardHashMap = appendToLoyaltyCardHashMap(
                                     loyaltyCardHashMap,
                                     cardName,
                                     "barcodeType",
                                     jsonObject.getString("input_barcode_format")
                             );
-                        } catch (JSONException ignored) {}
+                        }
                     }
                 } else if (fileName.endsWith("notes/default.json")) {
                     loyaltyCardHashMap = appendToLoyaltyCardHashMap(
@@ -131,7 +129,7 @@ public class StocardImporter implements Importer
                             cardName,
                             "note",
                             ZipUtils.readJSON(zipInputStream)
-                                .getString("content")
+                                    .getString("content")
                     );
                 } else if (fileName.endsWith("/images/front.png")) {
                     loyaltyCardHashMap = appendToLoyaltyCardHashMap(
@@ -155,9 +153,6 @@ public class StocardImporter implements Importer
             throw new FormatException("Couldn't find any loyalty cards in this Stocard export.");
         }
 
-        SQLiteDatabase database = db.getWritableDatabase();
-        database.beginTransaction();
-
         for (HashMap<String, Object> loyaltyCardData : loyaltyCardHashMap.values()) {
             String providerId = (String) loyaltyCardData.get("_providerId");
             HashMap<String, String> providerData = providers.get(providerId);
@@ -175,20 +170,16 @@ public class StocardImporter implements Importer
                 }
             }
 
-            long loyaltyCardInternalId = db.insertLoyaltyCard(database, store, note, null, BigDecimal.valueOf(0), null, cardId, null, barcodeType, null, 0, null);
+            long loyaltyCardInternalId = DBHelper.insertLoyaltyCard(database, store, note, null, BigDecimal.valueOf(0), null, cardId, null, barcodeType, null, 0, null);
 
             if (loyaltyCardData.containsKey("frontImage")) {
-                Utils.saveCardImage(context, (Bitmap) loyaltyCardData.get("frontImage"), (int) loyaltyCardInternalId, true);
+                Utils.saveCardImage(context, (Bitmap) loyaltyCardData.get("frontImage"), (int) loyaltyCardInternalId, ImageLocationType.front);
             }
             if (loyaltyCardData.containsKey("backImage")) {
-                Utils.saveCardImage(context, (Bitmap) loyaltyCardData.get("backImage"), (int) loyaltyCardInternalId, false);
+                Utils.saveCardImage(context, (Bitmap) loyaltyCardData.get("backImage"), (int) loyaltyCardInternalId, ImageLocationType.back);
             }
         }
 
-        database.setTransactionSuccessful();
-        database.endTransaction();
-        database.close();
-
         zipInputStream.close();
     }
 

app/src/main/java/protect/card_locker/importexport/VoucherVaultImporter.java

@@ -31,13 +31,12 @@ import protect.card_locker.Utils;
 /**
  * Class for importing a database from CSV (Comma Separate Values)
  * formatted data.
- *
+ * <p>
  * The database's loyalty cards are expected to appear in the CSV data.
  * A header is expected for the each table showing the names of the columns.
  */
-public class VoucherVaultImporter implements Importer
-{
-    public void importData(Context context, DBHelper db, InputStream input, char[] password) throws IOException, FormatException, JSONException, ParseException {
+public class VoucherVaultImporter implements Importer {
+    public void importData(Context context, SQLiteDatabase database, InputStream input, char[] password) throws IOException, FormatException, JSONException, ParseException {
         BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(input, StandardCharsets.UTF_8));
 
         StringBuilder sb = new StringBuilder();
@@ -47,9 +46,6 @@ public class VoucherVaultImporter implements Importer
         }
         JSONArray jsonArray = new JSONArray(sb.toString());
 
-        SQLiteDatabase database = db.getWritableDatabase();
-        database.beginTransaction();
-
         // See https://github.com/tim-smart/vouchervault/issues/4#issuecomment-788226503 for more info
         for (int i = 0; i < jsonArray.length(); i++) {
             JSONObject jsonCard = jsonArray.getJSONObject(i);
@@ -130,13 +126,9 @@ public class VoucherVaultImporter implements Importer
                     throw new FormatException("Unknown colour type found: " + colorFromJSON);
             }
 
-            db.insertLoyaltyCard(store, "", expiry, balance, balanceType, cardId, null, barcodeType, headerColor, 0, Utils.getUnixTime());
+            DBHelper.insertLoyaltyCard(database, store, "", expiry, balance, balanceType, cardId, null, barcodeType, headerColor, 0, Utils.getUnixTime());
         }
 
-        database.setTransactionSuccessful();
-        database.endTransaction();
-        database.close();
-
         bufferedReader.close();
     }
 }

app/src/main/java/protect/card_locker/preferences/Settings.java

@@ -9,47 +9,40 @@ import androidx.annotation.IntegerRes;
 import androidx.annotation.StringRes;
 import androidx.appcompat.app.AppCompatDelegate;
 import androidx.preference.PreferenceManager;
+
 import protect.card_locker.R;
 import protect.card_locker.Utils;
 
-public class Settings
-{
-    private Context context;
-    private SharedPreferences settings;
+public class Settings {
+    private final Context mContext;
+    private SharedPreferences mSettings;
 
-    public Settings(Context context)
-    {
-        this.context = context;
-        this.settings = PreferenceManager.getDefaultSharedPreferences(context);
+    public Settings(Context context) {
+        mContext = context.getApplicationContext();
+        mSettings = PreferenceManager.getDefaultSharedPreferences(context);
     }
 
-    private String getResString(@StringRes int resId)
-    {
-        return context.getString(resId);
+    private String getResString(@StringRes int resId) {
+        return mContext.getString(resId);
     }
 
-    private int getResInt(@IntegerRes int resId)
-    {
-        return context.getResources().getInteger(resId);
+    private int getResInt(@IntegerRes int resId) {
+        return mContext.getResources().getInteger(resId);
     }
 
-    private String getString(@StringRes int keyId, String defaultValue)
-    {
-        return settings.getString(getResString(keyId), defaultValue);
+    private String getString(@StringRes int keyId, String defaultValue) {
+        return mSettings.getString(getResString(keyId), defaultValue);
     }
 
-    private int getInt(@StringRes int keyId, @IntegerRes int defaultId)
-    {
-        return settings.getInt(getResString(keyId), getResInt(defaultId));
+    private int getInt(@StringRes int keyId, @IntegerRes int defaultId) {
+        return mSettings.getInt(getResString(keyId), getResInt(defaultId));
     }
 
-    private boolean getBoolean(@StringRes int keyId, boolean defaultValue)
-    {
-        return settings.getBoolean(getResString(keyId), defaultValue);
+    private boolean getBoolean(@StringRes int keyId, boolean defaultValue) {
+        return mSettings.getBoolean(getResString(keyId), defaultValue);
     }
 
-    public Locale getLocale()
-    {
+    public Locale getLocale() {
         String value = getString(R.string.settings_key_locale, "");
 
         if (value.length() == 0) {
@@ -59,69 +52,63 @@ public class Settings
         return Utils.stringToLocale(value);
     }
 
-    public int getTheme()
-    {
+    public int getTheme() {
         String value = getString(R.string.settings_key_theme, getResString(R.string.settings_key_system_theme));
 
-        if(value.equals(getResString(R.string.settings_key_light_theme)))
-        {
+        if (value.equals(getResString(R.string.settings_key_light_theme))) {
             return AppCompatDelegate.MODE_NIGHT_NO;
-        }
-        else if(value.equals(getResString(R.string.settings_key_dark_theme)))
-        {
+        } else if (value.equals(getResString(R.string.settings_key_dark_theme))) {
             return AppCompatDelegate.MODE_NIGHT_YES;
         }
 
         return AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM;
     }
 
-    public double getFontSizeScale()
-    {
+    public double getFontSizeScale() {
         return getInt(R.string.settings_key_max_font_size_scale, R.integer.settings_max_font_size_scale_pct) / 100.0;
     }
 
-    public int getSmallFont()
-    {
+    public int getSmallFont() {
         return 14;
     }
 
-    public int getMediumFont()
-    {
+    public int getMediumFont() {
         return 28;
     }
 
-    public int getLargeFont()
-    {
+    public int getLargeFont() {
         return 40;
     }
 
-    public int getFontSizeMin(int fontSize)
-    {
+    public int getFontSizeMin(int fontSize) {
         return (int) (Math.round(fontSize / 2.0) - 1);
     }
 
-    public int getFontSizeMax(int fontSize)
-    {
+    public int getFontSizeMax(int fontSize) {
         return (int) Math.round(fontSize * getFontSizeScale());
     }
 
-    public boolean useMaxBrightnessDisplayingBarcode()
-    {
+    public boolean useMaxBrightnessDisplayingBarcode() {
         return getBoolean(R.string.settings_key_display_barcode_max_brightness, true);
     }
 
-    public boolean getLockBarcodeScreenOrientation()
-    {
+    public boolean getLockBarcodeScreenOrientation() {
         return getBoolean(R.string.settings_key_lock_barcode_orientation, false);
     }
 
-    public boolean getKeepScreenOn()
-    {
+    public boolean getKeepScreenOn() {
         return getBoolean(R.string.settings_key_keep_screen_on, true);
     }
 
-    public boolean getDisableLockscreenWhileViewingCard()
-    {
+    public boolean getDisableLockscreenWhileViewingCard() {
         return getBoolean(R.string.settings_key_disable_lockscreen_while_viewing_card, true);
     }
+
+    public boolean getOledDark() {
+        return getBoolean(R.string.settings_key_oled_dark, false);
+    }
+
+    public String getColor() {
+        return getString(R.string.setting_key_theme_color, mContext.getResources().getString(R.string.settings_key_system_theme));
+    }
 }

app/src/main/java/protect/card_locker/preferences/SettingsActivity.java

@@ -1,6 +1,8 @@
 package protect.card_locker.preferences;
 
 
+import android.app.Activity;
+import android.content.Intent;
 import android.os.Bundle;
 import android.view.MenuItem;
 
@@ -8,67 +10,91 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Locale;
 
+import androidx.annotation.NonNull;
 import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.app.AppCompatDelegate;
 import androidx.appcompat.widget.Toolbar;
-import androidx.core.app.ActivityCompat;
 import androidx.fragment.app.DialogFragment;
-import androidx.fragment.app.FragmentActivity;
 import androidx.preference.ListPreference;
 import androidx.preference.Preference;
 import androidx.preference.PreferenceFragmentCompat;
+
+import com.google.android.material.color.DynamicColors;
+
 import nl.invissvenska.numberpickerpreference.NumberDialogPreference;
 import nl.invissvenska.numberpickerpreference.NumberPickerPreferenceDialogFragment;
 import protect.card_locker.CatimaAppCompatActivity;
+import protect.card_locker.MainActivity;
 import protect.card_locker.R;
 import protect.card_locker.Utils;
 
-public class SettingsActivity extends CatimaAppCompatActivity
-{
+public class SettingsActivity extends CatimaAppCompatActivity {
+
+    private final static String RELOAD_MAIN_STATE = "mReloadMain";
+    private SettingsFragment fragment;
+
     @Override
-    protected void onCreate(Bundle savedInstanceState)
-    {
+    protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setTitle(R.string.settings);
         setContentView(R.layout.settings_activity);
         Toolbar toolbar = findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);
         ActionBar actionBar = getSupportActionBar();
-        if(actionBar != null)
-        {
+        if (actionBar != null) {
             actionBar.setDisplayHomeAsUpEnabled(true);
         }
 
         // Display the fragment as the main content.
-        SettingsFragment fragment = new SettingsFragment();
-        fragment.setParentReference(this);
+        fragment = new SettingsFragment();
         getSupportFragmentManager().beginTransaction()
                 .replace(R.id.settings_container, fragment)
                 .commit();
+
+        // restore reload main state
+        if (savedInstanceState != null) {
+            fragment.mReloadMain = savedInstanceState.getBoolean(RELOAD_MAIN_STATE);
+        }
     }
 
     @Override
-    public boolean onOptionsItemSelected(MenuItem item)
-    {
+    protected void onSaveInstanceState(@NonNull Bundle outState) {
+        super.onSaveInstanceState(outState);
+        outState.putBoolean(RELOAD_MAIN_STATE, fragment.mReloadMain);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
         int id = item.getItemId();
 
-        if(id == android.R.id.home)
-        {
-            finish();
+        if (id == android.R.id.home) {
+            finishSettingsActivity();
             return true;
         }
 
         return super.onOptionsItemSelected(item);
     }
 
-    public static class SettingsFragment extends PreferenceFragmentCompat
-    {
-        private static final String DIALOG_FRAGMENT_TAG = "SettingsFragment";
-        private SettingsActivity parent;
+    @Override
+    public void onBackPressed() {
+        finishSettingsActivity();
+    }
 
-        public void setParentReference(SettingsActivity settingsActivity) {
-            parent = settingsActivity;
+    private void finishSettingsActivity() {
+        if (fragment.mReloadMain) {
+            Intent intent = new Intent();
+            intent.putExtra(MainActivity.RESTART_ACTIVITY_INTENT, true);
+            setResult(Activity.RESULT_OK, intent);
+        } else {
+            setResult(Activity.RESULT_OK);
         }
+        finish();
+    }
+
+    public static class SettingsFragment extends PreferenceFragmentCompat {
+        private static final String DIALOG_FRAGMENT_TAG = "SettingsFragment";
+
+        public boolean mReloadMain;
 
         @Override
         public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
@@ -102,29 +128,39 @@ public class SettingsActivity extends CatimaAppCompatActivity
                     AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM);
                 }
 
-                FragmentActivity activity = getActivity();
-                if (activity != null) {
-                    ActivityCompat.recreate(activity);
-                }
                 return true;
             });
 
-            Preference colorPreference = findPreference(getResources().getString(R.string.setting_key_theme_color));
+            localePreference.setOnPreferenceChangeListener((preference, newValue) -> {
+                refreshActivity(true);
+                return true;
+            });
+
+            Preference oledDarkPreference = findPreference(getResources().getString(R.string.settings_key_oled_dark));
+            assert oledDarkPreference != null;
+            oledDarkPreference.setOnPreferenceChangeListener((preference, newValue) -> {
+                refreshActivity(true);
+                return true;
+            });
+
+            ListPreference colorPreference = findPreference(getResources().getString(R.string.setting_key_theme_color));
             assert colorPreference != null;
             colorPreference.setOnPreferenceChangeListener((preference, o) -> {
-                FragmentActivity activity = getActivity();
-                if (activity != null) {
-                    ActivityCompat.recreate(activity);
-                }
+                refreshActivity(true);
                 return true;
             });
-            localePreference.setOnPreferenceChangeListener((preference, newValue) -> {
-                // Refresh the activity
-                parent.finish();
-                startActivity(parent.getIntent());
+            if (!DynamicColors.isDynamicColorAvailable()) {
+                colorPreference.setEntryValues(R.array.color_values_no_dynamic);
+                colorPreference.setEntries(R.array.color_value_strings_no_dynamic);
+            }
+        }
 
-                return true;
-            });
+        private void refreshActivity(boolean reloadMain) {
+            mReloadMain = reloadMain || mReloadMain;
+            Activity activity = getActivity();
+            if (activity != null) {
+                activity.recreate();
+            }
         }
 
         @Override

app/src/main/res/animator/flip_left_in.xml

@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<set xmlns:android="http://schemas.android.com/apk/res/android">
-   <objectAnimator
-        android:duration="0"
-        android:propertyName="alpha"
-        android:valueFrom="1.0"
-        android:valueTo="0.0" />
-
-    <objectAnimator
-        android:duration="@integer/full_rotation_duration"
-        android:interpolator="@android:interpolator/accelerate_decelerate"
-        android:propertyName="rotationY"
-        android:valueFrom="-180"
-        android:valueTo="0" />
-
-    <objectAnimator
-        android:duration="1"
-        android:propertyName="alpha"
-        android:startOffset="@integer/half_rotation_duration"
-        android:valueFrom="0.0"
-        android:valueTo="1.0" />
-</set>

app/src/main/res/animator/flip_left_out.xml

@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<set xmlns:android="http://schemas.android.com/apk/res/android">
-    <objectAnimator
-        android:duration="@integer/full_rotation_duration"
-        android:interpolator="@android:interpolator/accelerate_decelerate"
-        android:propertyName="rotationY"
-        android:valueFrom="0"
-        android:valueTo="180" />
-
-   <objectAnimator
-        android:duration="1"
-        android:propertyName="alpha"
-        android:startOffset="@integer/half_rotation_duration"
-        android:valueFrom="1.0"
-        android:valueTo="0.0" />
-</set>

app/src/main/res/animator/flip_right_in.xml

@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<set xmlns:android="http://schemas.android.com/apk/res/android">
-   <objectAnimator
-        android:duration="0"
-        android:propertyName="alpha"
-        android:valueFrom="1.0"
-        android:valueTo="0.0" />
-
-    <objectAnimator
-        android:duration="@integer/full_rotation_duration"
-        android:interpolator="@android:interpolator/accelerate_decelerate"
-        android:propertyName="rotationY"
-        android:valueFrom="180"
-        android:valueTo="0" />
-
-    <objectAnimator
-        android:duration="1"
-        android:propertyName="alpha"
-        android:startOffset="@integer/half_rotation_duration"
-        android:valueFrom="0.0"
-        android:valueTo="1.0" />
-</set>

app/src/main/res/animator/flip_right_out.xml

@@ -1,16 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<set xmlns:android="http://schemas.android.com/apk/res/android">
-    <objectAnimator
-        android:duration="@integer/full_rotation_duration"
-        android:interpolator="@android:interpolator/accelerate_decelerate"
-        android:propertyName="rotationY"
-        android:valueFrom="0"
-        android:valueTo="-180" />
-
-    <objectAnimator
-        android:duration="1"
-        android:propertyName="alpha"
-        android:startOffset="@integer/half_rotation_duration"
-        android:valueFrom="1.0"
-        android:valueTo="0.0" />
-</set>

app/src/main/res/drawable/ic_add_white_24dp.xml

@@ -1,4 +1,4 @@
-<vector android:height="24dp" android:tint="#FFFFFF"
+<vector android:height="24dp" android:tint="?attr/colorControlNormal"
     android:viewportHeight="24" android:viewportWidth="24"
     android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
     <path android:fillColor="@android:color/white" android:pathData="M19,13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"/>

app/src/main/res/drawable/ic_arrow_back_white.xml

@@ -1,4 +1,4 @@
-<vector android:height="24dp" android:tint="#FFFFFF"
+<vector android:height="24dp" android:tint="?attr/colorControlNormal"
     android:viewportHeight="24" android:viewportWidth="24"
     android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
     <path android:fillColor="@android:color/white" android:pathData="M20,11H7.83l5.59,-5.59L12,4l-8,8 8,8 1.41,-1.41L7.83,13H20v-2z"/>

app/src/main/res/drawable/ic_baseline_arrow_drop_down_24.xml

@@ -1,4 +1,4 @@
-<vector android:height="24dp" android:tint="#FFFFFF"
+<vector android:height="24dp" android:tint="?attr/colorControlNormal"
     android:viewportHeight="24" android:viewportWidth="24"
     android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
     <path android:fillColor="@android:color/white" android:pathData="M7,10l5,5 5,-5z"/>

app/src/main/res/drawable/ic_baseline_arrow_drop_up_24.xml

@@ -1,4 +1,4 @@
-<vector android:height="24dp" android:tint="#FFFFFF"
+<vector android:height="24dp" android:tint="?attr/colorControlNormal"
     android:viewportHeight="24" android:viewportWidth="24"
     android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
     <path android:fillColor="@android:color/white" android:pathData="M7,14l5,-5 5,5z"/>

app/src/main/res/drawable/ic_baseline_sort_24.xml

@@ -1,5 +1,5 @@
 <vector android:autoMirrored="true" android:height="24dp"
-    android:tint="#FFFFFF" android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal" android:viewportHeight="24"
     android:viewportWidth="24" android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
     <path android:fillColor="@android:color/white" android:pathData="M3,18h6v-2L3,16v2zM3,6v2h18L21,6L3,6zM3,13h12v-2L3,11v2z"/>
 </vector>

app/src/main/res/drawable/ic_baseline_unfold_less_24.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="?attr/colorControlNormal"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M7.41,18.59L8.83,20 12,16.83 15.17,20l1.41,-1.41L12,14l-4.59,4.59zM16.59,5.41L15.17,4 12,7.17 8.83,4 7.41,5.41 12,10l4.59,-4.59z"/>
+</vector>

app/src/main/res/drawable/ic_baseline_unfold_more_24.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="?attr/colorControlNormal"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M12,5.83L15.17,9l1.41,-1.41L12,3 7.41,7.59 8.83,9 12,5.83zM12,18.17L8.83,15l-1.41,1.41L12,21l4.59,-4.59L15.17,15 12,18.17z"/>
+</vector>

app/src/main/res/drawable/ic_copy.xml

@@ -2,7 +2,8 @@
     android:width="24dp"
     android:height="24dp"
     android:viewportWidth="24"
-    android:viewportHeight="24">
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
   <path
       android:fillColor="#FFFFFFFF"
       android:pathData="M16,1L4,1c-1.1,0 -2,0.9 -2,2v14h2L4,3h12L16,1zM19,5L8,5c-1.1,0 -2,0.9 -2,2v14c0,1.1 0.9,2 2,2h11c1.1,0 2,-0.9 2,-2L21,7c0,-1.1 -0.9,-2 -2,-2zM19,21L8,21L8,7h11v14z"/>

app/src/main/res/drawable/ic_delete_white_24dp.xml

@@ -1,4 +1,4 @@
-<vector android:height="24dp" android:tint="#FFFFFF"
+<vector android:height="24dp" android:tint="?attr/colorControlNormal"
     android:viewportHeight="24" android:viewportWidth="24"
     android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
     <path android:fillColor="@android:color/white" android:pathData="M6,19c0,1.1 0.9,2 2,2h8c1.1,0 2,-0.9 2,-2V7H6v12zM19,4h-3.5l-1,-1h-5l-1,1H5v2h14V4z"/>

app/src/main/res/drawable/ic_done.xml

@@ -1,9 +1,9 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="24dp"
     android:height="24dp"
-    android:tint="@color/colorPrimary"
     android:viewportWidth="24"
-    android:viewportHeight="24">
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
   <path
       android:fillColor="#FFFFFF"
       android:pathData="M9,16.2L4.8,12l-1.4,1.4L9,19 21,7l-1.4,-1.4L9,16.2z"/>

app/src/main/res/drawable/ic_flashlight_off_white_24dp.xml

@@ -2,7 +2,8 @@
     android:width="24dp"
     android:height="24dp"
     android:viewportWidth="24"
-    android:viewportHeight="24">
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
   <path
       android:pathData="M18,5l0,-3l-12,0l0,1.17l1.83,1.83z"
       android:fillColor="#FFFFFF"/>

app/src/main/res/drawable/ic_flashlight_on_white_24dp.xml

@@ -2,7 +2,8 @@
     android:width="24dp"
     android:height="24dp"
     android:viewportWidth="24"
-    android:viewportHeight="24">
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
   <path
       android:pathData="M6,2h12v3h-12z"
       android:fillColor="#FFFFFF"/>

app/src/main/res/drawable/ic_folder_white.xml

@@ -1,4 +1,4 @@
-<vector android:height="24dp" android:tint="#FFFFFF"
+<vector android:height="24dp" android:tint="?attr/colorControlNormal"
     android:viewportHeight="24" android:viewportWidth="24"
     android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
     <path android:fillColor="@android:color/white" android:pathData="M10,4H4c-1.1,0 -1.99,0.9 -1.99,2L2,18c0,1.1 0.9,2 2,2h16c1.1,0 2,-0.9 2,-2V8c0,-1.1 -0.9,-2 -2,-2h-8l-2,-2z"/>

app/src/main/res/drawable/ic_import_export_white_24dp.xml

@@ -1,4 +1,4 @@
-<vector android:height="24dp" android:tint="#FFFFFF"
+<vector android:height="24dp" android:tint="?attr/colorControlNormal"
     android:viewportHeight="24" android:viewportWidth="24"
     android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
     <path android:fillColor="@android:color/white" android:pathData="M9,3L5,6.99h3L8,14h2L10,6.99h3L9,3zM16,17.01L16,10h-2v7.01h-3L15,21l4,-3.99h-3z"/>

app/src/main/res/drawable/ic_lock_open_white_24dp.xml

@@ -1,4 +1,4 @@
-<vector android:height="24dp" android:tint="#FFFFFF"
+<vector android:height="24dp" android:tint="?attr/colorControlNormal"
     android:viewportHeight="24" android:viewportWidth="24"
     android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
     <path android:fillColor="@android:color/white" android:pathData="M12,17c1.1,0 2,-0.9 2,-2s-0.9,-2 -2,-2 -2,0.9 -2,2 0.9,2 2,2zM18,8h-1L17,6c0,-2.76 -2.24,-5 -5,-5S7,3.24 7,6h1.9c0,-1.71 1.39,-3.1 3.1,-3.1 1.71,0 3.1,1.39 3.1,3.1v2L6,8c-1.1,0 -2,0.9 -2,2v10c0,1.1 0.9,2 2,2h12c1.1,0 2,-0.9 2,-2L20,10c0,-1.1 -0.9,-2 -2,-2zM18,20L6,20L6,10h12v10z"/>

app/src/main/res/drawable/ic_lock_outline_white_24dp.xml

@@ -1,4 +1,4 @@
-<vector android:height="24dp" android:tint="#FFFFFF"
+<vector android:height="24dp" android:tint="?attr/colorControlNormal"
     android:viewportHeight="24" android:viewportWidth="24"
     android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
     <path android:fillColor="@android:color/white" android:pathData="M18,8h-1L17,6c0,-2.76 -2.24,-5 -5,-5S7,3.24 7,6v2L6,8c-1.1,0 -2,0.9 -2,2v10c0,1.1 0.9,2 2,2h12c1.1,0 2,-0.9 2,-2L20,10c0,-1.1 -0.9,-2 -2,-2zM12,17c-1.1,0 -2,-0.9 -2,-2s0.9,-2 2,-2 2,0.9 2,2 -0.9,2 -2,2zM15.1,8L8.9,8L8.9,6c0,-1.71 1.39,-3.1 3.1,-3.1 1.71,0 3.1,1.39 3.1,3.1v2z"/>

app/src/main/res/drawable/ic_mode_edit_white_24dp.xml

@@ -1,4 +1,4 @@
-<vector android:height="24dp" android:tint="#FFFFFF"
+<vector android:height="24dp" android:tint="?attr/colorControlNormal"
     android:viewportHeight="24" android:viewportWidth="24"
     android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
     <path android:fillColor="@android:color/white" android:pathData="M3,17.25V21h3.75L17.81,9.94l-3.75,-3.75L3,17.25zM20.71,7.04c0.39,-0.39 0.39,-1.02 0,-1.41l-2.34,-2.34c-0.39,-0.39 -1.02,-0.39 -1.41,0l-1.83,1.83 3.75,3.75 1.83,-1.83z"/>

app/src/main/res/drawable/ic_search_white.xml

@@ -1,4 +1,4 @@
-<vector android:height="24dp" android:tint="#FFFFFF"
+<vector android:height="24dp" android:tint="?attr/colorControlNormal"
     android:viewportHeight="24" android:viewportWidth="24"
     android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
     <path android:fillColor="@android:color/white" android:pathData="M15.5,14h-0.79l-0.28,-0.27C15.41,12.59 16,11.11 16,9.5 16,5.91 13.09,3 9.5,3S3,5.91 3,9.5 5.91,16 9.5,16c1.61,0 3.09,-0.59 4.23,-1.57l0.27,0.28v0.79l5,4.99L20.49,19l-4.99,-5zM9.5,14C7.01,14 5,11.99 5,9.5S7.01,5 9.5,5 14,7.01 14,9.5 11.99,14 9.5,14z"/>

app/src/main/res/drawable/ic_starred_black.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#000000"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M12,17.27L18.18,21l-1.64,-7.03L22,9.24l-7.19,-0.61L12,2 9.19,8.63 2,9.24l5.46,4.73L5.82,21z"/>
+</vector>

app/src/main/res/drawable/ic_unstarred_black.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#000000"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M22,9.24l-7.19,-0.62L12,2 9.19,8.63 2,9.24l5.46,4.73L5.82,21 12,17.27 18.18,21l-1.63,-7.03L22,9.24zM12,15.4l-3.76,2.27 1,-4.28 -3.32,-2.88 4.38,-0.38L12,6.1l1.71,4.04 4.38,0.38 -3.32,2.88 1,4.28L12,15.4z"/>
+</vector>

app/src/main/res/drawable/list_row.xml

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<selector xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:drawable="@color/listItemHighlight" android:state_activated="true" />
-</selector>

app/src/main/res/drawable/save_24dp.xml

@@ -1,4 +1,4 @@
-<vector android:height="24dp" android:tint="#FFFFFF"
+<vector android:height="24dp" android:tint="?attr/colorControlNormal"
     android:viewportHeight="24" android:viewportWidth="24"
     android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
     <path android:fillColor="@android:color/white" android:pathData="M17,3L5,3c-1.11,0 -2,0.9 -2,2v14c0,1.1 0.89,2 2,2h14c1.1,0 2,-0.9 2,-2L21,7l-4,-4zM12,19c-1.66,0 -3,-1.34 -3,-3s1.34,-3 3,-3 3,1.34 3,3 -1.34,3 -3,3zM15,9L5,9L5,5h10v4z"/>

app/src/main/res/layout/about_activity.xml

@@ -10,15 +10,13 @@
 
     <com.google.android.material.appbar.AppBarLayout
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:theme="@style/AppTheme.AppBarOverlay">
+        android:layout_height="wrap_content">
 
-        <androidx.appcompat.widget.Toolbar
+        <com.google.android.material.appbar.MaterialToolbar
             android:id="@+id/toolbar"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
-            android:background="?attr/colorPrimary"
-            app:popupTheme="@style/AppTheme.PopupOverlay"/>
+            style="?attr/toolbarStyle" />
 
     </com.google.android.material.appbar.AppBarLayout>
 
@@ -46,7 +44,6 @@
                     android:fontFamily="sans-serif-medium"
                     android:padding="2dp"
                     android:text="@string/version_history"
-                    android:textColor="@color/colorSecondaryText"
                     android:textSize="18sp"
                     app:layout_constraintStart_toStartOf="parent"
                     app:layout_constraintTop_toTopOf="parent" />
@@ -61,12 +58,12 @@
                     app:layout_constraintTop_toBottomOf="@id/version_history_main" />
 
                 <TextView
+                    android:importantForAccessibility="no"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:layout_margin="8dp"
                     android:fontFamily="sans-serif-medium"
                     android:text="@string/arrow"
-                    android:textColor="@color/colorSecondaryText"
                     android:textSize="20sp"
                     app:layout_constraintBottom_toBottomOf="parent"
                     app:layout_constraintEnd_toEndOf="parent"
@@ -86,7 +83,6 @@
                     android:fontFamily="sans-serif-medium"
                     android:padding="2dp"
                     android:text="@string/credits"
-                    android:textColor="@color/colorSecondaryText"
                     android:textSize="18sp"
                     app:layout_constraintStart_toStartOf="parent"
                     app:layout_constraintTop_toTopOf="parent" />
@@ -101,12 +97,12 @@
                     app:layout_constraintTop_toBottomOf="@id/credits_main" />
 
                 <TextView
+                    android:importantForAccessibility="no"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:layout_margin="8dp"
                     android:fontFamily="sans-serif-medium"
                     android:text="@string/arrow"
-                    android:textColor="@color/colorSecondaryText"
                     android:textSize="20sp"
                     app:layout_constraintBottom_toBottomOf="parent"
                     app:layout_constraintEnd_toEndOf="parent"
@@ -126,18 +122,28 @@
                     android:fontFamily="sans-serif-medium"
                     android:padding="2dp"
                     android:text="@string/help_translate_this_app"
-                    android:textColor="@color/colorSecondaryText"
                     android:textSize="18sp"
                     app:layout_constraintStart_toStartOf="parent"
                     app:layout_constraintTop_toTopOf="parent" />
 
                 <TextView
+                    android:id="@+id/translate_sub"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:padding="2dp"
+                    android:text="@string/translate_platform"
+                    android:layout_marginEnd="20dp"
+                    android:textSize="16sp"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toBottomOf="@id/translate_main"/>
+
+                <TextView
+                    android:importantForAccessibility="no"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:layout_margin="8dp"
                     android:fontFamily="sans-serif-medium"
                     android:text="@string/arrow"
-                    android:textColor="@color/colorSecondaryText"
                     android:textSize="20sp"
                     app:layout_constraintBottom_toBottomOf="parent"
                     app:layout_constraintEnd_toEndOf="parent"
@@ -157,7 +163,6 @@
                     android:fontFamily="sans-serif-medium"
                     android:padding="2dp"
                     android:text="@string/license"
-                    android:textColor="@color/colorSecondaryText"
                     android:textSize="18sp"
                     app:layout_constraintStart_toStartOf="parent"
                     app:layout_constraintTop_toTopOf="parent" />
@@ -174,12 +179,12 @@
                     app:layout_constraintTop_toBottomOf="@id/license_main"/>
 
                 <TextView
+                    android:importantForAccessibility="no"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:layout_margin="8dp"
                     android:fontFamily="sans-serif-medium"
                     android:text="@string/arrow"
-                    android:textColor="@color/colorSecondaryText"
                     android:textSize="20sp"
                     app:layout_constraintBottom_toBottomOf="parent"
                     app:layout_constraintEnd_toEndOf="parent"
@@ -199,7 +204,6 @@
                     android:fontFamily="sans-serif-medium"
                     android:padding="2dp"
                     android:text="@string/source_repository"
-                    android:textColor="@color/colorSecondaryText"
                     android:textSize="18sp"
                     app:layout_constraintStart_toStartOf="parent"
                     app:layout_constraintTop_toTopOf="parent" />
@@ -215,12 +219,12 @@
                     app:layout_constraintTop_toBottomOf="@id/repo_main" />
 
                 <TextView
+                    android:importantForAccessibility="no"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:layout_margin="8dp"
                     android:fontFamily="sans-serif-medium"
                     android:text="@string/arrow"
-                    android:textColor="@color/colorSecondaryText"
                     android:textSize="20sp"
                     app:layout_constraintBottom_toBottomOf="parent"
                     app:layout_constraintEnd_toEndOf="parent"
@@ -240,7 +244,6 @@
                     android:fontFamily="sans-serif-medium"
                     android:padding="2dp"
                     android:text="@string/privacy_policy"
-                    android:textColor="@color/colorSecondaryText"
                     android:textSize="18sp"
                     app:layout_constraintStart_toStartOf="parent"
                     app:layout_constraintTop_toTopOf="parent" />
@@ -256,12 +259,12 @@
                     app:layout_constraintTop_toBottomOf="@id/privacy_main" />
 
                 <TextView
+                    android:importantForAccessibility="no"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:layout_margin="8dp"
                     android:fontFamily="sans-serif-medium"
                     android:text="@string/arrow"
-                    android:textColor="@color/colorSecondaryText"
                     android:textSize="20sp"
                     app:layout_constraintBottom_toBottomOf="parent"
                     app:layout_constraintEnd_toEndOf="parent"
@@ -281,7 +284,6 @@
                     android:fontFamily="sans-serif-medium"
                     android:padding="2dp"
                     android:text="@string/rate_this_app"
-                    android:textColor="@color/colorSecondaryText"
                     android:textSize="18sp"
                     app:layout_constraintStart_toStartOf="parent"
                     app:layout_constraintTop_toTopOf="parent" />
@@ -297,12 +299,12 @@
                     app:layout_constraintTop_toBottomOf="@id/rate_main" />
 
                 <TextView
+                    android:importantForAccessibility="no"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:layout_margin="8dp"
                     android:fontFamily="sans-serif-medium"
                     android:text="@string/arrow"
-                    android:textColor="@color/colorSecondaryText"
                     android:textSize="20sp"
                     app:layout_constraintBottom_toBottomOf="parent"
                     app:layout_constraintEnd_toEndOf="parent"
@@ -322,7 +324,6 @@
                     android:fontFamily="sans-serif-medium"
                     android:padding="2dp"
                     android:text="@string/report_error"
-                    android:textColor="@color/colorSecondaryText"
                     android:textSize="18sp"
                     app:layout_constraintStart_toStartOf="parent"
                     app:layout_constraintTop_toTopOf="parent" />
@@ -338,12 +339,12 @@
                     android:padding="2dp"/>
 
                 <TextView
+                    android:importantForAccessibility="no"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:layout_margin="8dp"
                     android:fontFamily="sans-serif-medium"
                     android:text="@string/arrow"
-                    android:textColor="@color/colorSecondaryText"
                     android:textSize="20sp"
                     app:layout_constraintBottom_toBottomOf="parent"
                     app:layout_constraintEnd_toEndOf="parent"

app/src/main/res/layout/activity_manage_group.xml

@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.coordinatorlayout.widget.CoordinatorLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:fitsSystemWindows="true"
+    tools:context="protect.card_locker.ManageGroupActivity">
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+        android:id="@+id/fabSave"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="end|bottom"
+        app:srcCompat="@drawable/save_24dp"
+        android:contentDescription="@string/save"
+        android:layout_margin="16dp" />
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical">
+
+        <com.google.android.material.appbar.AppBarLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content">
+
+            <com.google.android.material.appbar.MaterialToolbar
+                android:id="@+id/toolbar"
+                android:layout_width="match_parent"
+                android:layout_height="?attr/actionBarSize"
+                style="?attr/toolbarStyle" />
+
+            <com.google.android.material.tabs.TabLayout
+                android:id="@+id/groups"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:visibility="gone"
+                app:tabMode="scrollable" />
+
+        </com.google.android.material.appbar.AppBarLayout>
+
+
+        <com.google.android.material.textfield.TextInputLayout
+            android:id="@+id/storeNameField"
+            style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:hint="@string/storeName">
+            <com.google.android.material.textfield.TextInputEditText
+                android:id="@+id/editTextGroupName"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:singleLine="true" />
+        </com.google.android.material.textfield.TextInputLayout>
+
+
+        <include
+            android:id="@+id/include"
+            layout="@layout/content_main" />
+
+    </LinearLayout>
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>

app/src/main/res/layout/barcode_layout.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout android:orientation="vertical"
+    android:padding="10.0dp"
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    xmlns:android="http://schemas.android.com/apk/res/android">
+    <ImageView
+        android:importantForAccessibility="no"
+        android:layout_width="match_parent"
+        android:layout_height="@dimen/barcode_disp_height"
+        android:layout_gravity="center_horizontal"
+        android:id="@+id/barcodeImage"
+        android:layout_weight="1.0"/>
+    <TextView
+        android:id="@+id/barcodeName"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_margin="10.0dip"
+        android:gravity="center"
+        android:textSize="@dimen/text_size_medium"
+        android:textStyle="bold"
+        android:layout_weight="1.0" />
+</LinearLayout>

app/src/main/res/layout/barcode_selector_activity.xml

@@ -1,318 +1,89 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
-                                                     xmlns:app="http://schemas.android.com/apk/res-auto"
-                                                     android:layout_width="match_parent"
-                                                     android:layout_height="match_parent"
-                                                     android:fitsSystemWindows="true">
+<androidx.coordinatorlayout.widget.CoordinatorLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent">
 
     <com.google.android.material.appbar.AppBarLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:theme="@style/AppTheme.AppBarOverlay">
+        android:layout_width="fill_parent"
+        android:layout_height="wrap_content">
 
-        <androidx.appcompat.widget.Toolbar
+        <com.google.android.material.appbar.MaterialToolbar
             android:id="@+id/toolbar"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
-            android:background="?attr/colorPrimary"
-            app:popupTheme="@style/AppTheme.PopupOverlay" />
-
+            style="?attr/toolbarStyle" />
     </com.google.android.material.appbar.AppBarLayout>
 
-    <ScrollView
+    <LinearLayout
         android:layout_width="fill_parent"
         android:layout_height="fill_parent"
         app:layout_behavior="@string/appbar_scrolling_view_behavior"
-        android:id="@+id/scrollView">
+        android:orientation="vertical">
+        <TextView
+            android:id="@+id/explanationText"
+            android:textSize="20sp"
+            android:layout_gravity="center_vertical"
+            android:paddingStart="20.0dip"
+            android:paddingEnd="20.0dip"
+            android:layout_width="fill_parent"
+            android:layout_height="wrap_content"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintBottom_toTopOf="@+id/barcodeIdLayout"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            android:text="@string/enterBarcodeInstructions" />
+        <LinearLayout
+            android:id="@+id/barcodeIdLayout"
+            android:orientation="horizontal"
+            android:padding="10.0dip"
+            android:layout_width="fill_parent"
+            android:layout_height="wrap_content"
+            app:layout_constraintTop_toBottomOf="@+id/explanationText"
+            app:layout_constraintBottom_toTopOf="@+id/noBarcode"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent">
+            <TextView android:textSize="16.0sp"
+                      android:textStyle="bold"
+                      android:layout_gravity="center_vertical"
+                      android:paddingStart="20.0dip"
+                      android:paddingEnd="20.0dip"
+                      android:layout_width="wrap_content"
+                      android:layout_height="wrap_content"
+                      android:labelFor="@+id/cardId"
+                      android:text="@string/cardId" />
 
-        <LinearLayout android:orientation="vertical"
-                      android:layout_width="fill_parent"
-                      android:layout_height="wrap_content">
-            <LinearLayout android:orientation="horizontal"
-                          android:padding="10.0dip"
-                          android:layout_width="fill_parent"
-                          android:layout_height="wrap_content">
-                <TextView android:textSize="20sp"
-                          android:layout_gravity="center_vertical"
-                          android:paddingStart="20.0dip"
-                          android:paddingEnd="20.0dip"
-                          android:layout_width="wrap_content"
-                          android:layout_height="wrap_content"
-                          android:text="@string/enterBarcodeInstructions" />
-            </LinearLayout>
-            <LinearLayout android:orientation="horizontal"
-                          android:padding="10.0dip"
-                          android:layout_width="fill_parent"
-                          android:layout_height="wrap_content"
-                          android:id="@+id/barcodeIdLayout">
-                <TextView android:textSize="16.0sp"
-                          android:textStyle="bold"
-                          android:layout_gravity="center_vertical"
-                          android:paddingStart="20.0dip"
-                          android:paddingEnd="20.0dip"
-                          android:layout_width="wrap_content"
-                          android:layout_height="wrap_content"
-                          android:labelFor="@+id/cardId"
-                          android:text="@string/cardId" />
-                <EditText android:id="@+id/cardId"
-                          android:hint="AB1234"
-                          android:importantForAutofill="no"
-                          android:layout_width="fill_parent"
-                          android:layout_height="wrap_content"
-                          android:inputType="text"/>
-            </LinearLayout>
-            <LinearLayout
-                android:orientation="vertical"
+            <EditText
+                android:id="@+id/cardId"
                 android:layout_width="fill_parent"
                 android:layout_height="wrap_content"
-                android:id="@+id/barcodesLayout"/>
-            <Button
-                android:id="@+id/noBarcode"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:text="@string/barcodeNoBarcode"
-                android:textColor="#FFFFFF"
-                android:enabled="false" />
-            <LinearLayout android:orientation="vertical"
-                          android:padding="10.0dp"
-                          android:layout_width="fill_parent"
-                          android:layout_height="wrap_content">
-                <ImageView
-                    android:layout_width="match_parent"
-                    android:layout_height="@dimen/barcode_disp_height"
-                    android:layout_gravity="center_horizontal"
-                    android:id="@+id/aztecBarcode"
-                    android:layout_weight="1.0"/>
-                <TextView
-                    android:id="@+id/aztecBarcodeText"
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:layout_margin="10.0dip"
-                    android:gravity="center"
-                    android:textSize="@dimen/text_size_medium"
-                    android:textStyle="bold"
-                    android:layout_weight="1.0" />
-            </LinearLayout>
-            <LinearLayout android:orientation="vertical"
-                          android:padding="10.0dp"
-                          android:layout_width="fill_parent"
-                          android:layout_height="wrap_content">
-                <ImageView
-                    android:layout_width="match_parent"
-                    android:layout_height="@dimen/barcode_disp_height"
-                    android:layout_gravity="center_horizontal"
-                    android:id="@+id/code39Barcode"
-                    android:layout_weight="1.0"/>
-                <TextView
-                    android:id="@+id/code39BarcodeText"
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:layout_margin="10.0dip"
-                    android:gravity="center"
-                    android:textSize="@dimen/text_size_medium"
-                    android:textStyle="bold"
-                    android:layout_weight="1.0" />
-            </LinearLayout>
-            <LinearLayout android:orientation="vertical"
-                          android:padding="10.0dp"
-                          android:layout_width="fill_parent"
-                          android:layout_height="wrap_content">
-                <ImageView
-                    android:layout_width="match_parent"
-                    android:layout_height="@dimen/barcode_disp_height"
-                    android:layout_gravity="center_horizontal"
-                    android:id="@+id/code128Barcode"
-                    android:layout_weight="1.0"/>
-                <TextView
-                    android:id="@+id/code128BarcodeText"
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:layout_margin="10.0dip"
-                    android:gravity="center"
-                    android:textSize="@dimen/text_size_medium"
-                    android:textStyle="bold"
-                    android:layout_weight="1.0" />
-            </LinearLayout>
-            <LinearLayout android:orientation="vertical"
-                          android:padding="10.0dp"
-                          android:layout_width="fill_parent"
-                          android:layout_height="wrap_content">
-                <ImageView
-                    android:layout_width="match_parent"
-                    android:layout_height="@dimen/barcode_disp_height"
-                    android:layout_gravity="center_horizontal"
-                    android:id="@+id/codabarBarcode"
-                    android:layout_weight="1.0"/>
-                <TextView
-                    android:id="@+id/codabarBarcodeText"
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:layout_margin="10.0dip"
-                    android:gravity="center"
-                    android:textSize="@dimen/text_size_medium"
-                    android:textStyle="bold"
-                    android:layout_weight="1.0" />
-            </LinearLayout>
-            <LinearLayout android:orientation="vertical"
-                          android:padding="10.0dp"
-                          android:layout_width="fill_parent"
-                          android:layout_height="wrap_content">
-                <ImageView
-                    android:layout_width="match_parent"
-                    android:layout_height="@dimen/barcode_disp_height"
-                    android:layout_gravity="center_horizontal"
-                    android:id="@+id/datamatrixBarcode"
-                    android:layout_weight="1.0"/>
-                <TextView
-                    android:id="@+id/datamatrixBarcodeText"
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:layout_margin="10.0dip"
-                    android:gravity="center"
-                    android:textSize="@dimen/text_size_medium"
-                    android:textStyle="bold"
-                    android:layout_weight="1.0" />
-            </LinearLayout>
-            <LinearLayout android:orientation="vertical"
-                          android:padding="10.0dp"
-                          android:layout_width="fill_parent"
-                          android:layout_height="wrap_content">
-                <ImageView
-                    android:layout_width="match_parent"
-                    android:layout_height="@dimen/barcode_disp_height"
-                    android:layout_gravity="center_horizontal"
-                    android:id="@+id/ean8Barcode"
-                    android:layout_weight="1.0"/>
-                <TextView
-                    android:id="@+id/ean8BarcodeText"
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:layout_margin="10.0dip"
-                    android:gravity="center"
-                    android:textSize="@dimen/text_size_medium"
-                    android:textStyle="bold"
-                    android:layout_weight="1.0" />
-            </LinearLayout>
-            <LinearLayout android:orientation="vertical"
-                          android:padding="10.0dp"
-                          android:layout_width="fill_parent"
-                          android:layout_height="wrap_content">
-                <ImageView
-                    android:layout_width="match_parent"
-                    android:layout_height="@dimen/barcode_disp_height"
-                    android:layout_gravity="center_horizontal"
-                    android:id="@+id/ean13Barcode"
-                    android:layout_weight="1.0"/>
-                <TextView
-                    android:id="@+id/ean13BarcodeText"
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:layout_margin="10.0dip"
-                    android:gravity="center"
-                    android:textSize="@dimen/text_size_medium"
-                    android:textStyle="bold"
-                    android:layout_weight="1.0" />
-            </LinearLayout>
-            <LinearLayout android:orientation="vertical"
-                          android:padding="10.0dp"
-                          android:layout_width="fill_parent"
-                          android:layout_height="wrap_content">
-                <ImageView
-                    android:layout_width="match_parent"
-                    android:layout_height="@dimen/barcode_disp_height"
-                    android:layout_gravity="center_horizontal"
-                    android:id="@+id/itfBarcode"
-                    android:layout_weight="1.0"/>
-                <TextView
-                    android:id="@+id/itfBarcodeText"
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:layout_margin="10.0dip"
-                    android:gravity="center"
-                    android:textSize="@dimen/text_size_medium"
-                    android:textStyle="bold"
-                    android:layout_weight="1.0" />
-            </LinearLayout>
-            <LinearLayout android:orientation="vertical"
-                          android:padding="10.0dp"
-                          android:layout_width="fill_parent"
-                          android:layout_height="wrap_content">
-                <ImageView
-                    android:layout_width="match_parent"
-                    android:layout_height="@dimen/barcode_disp_height"
-                    android:layout_gravity="center_horizontal"
-                    android:id="@+id/pdf417Barcode"
-                    android:layout_weight="1.0"/>
-                <TextView
-                    android:id="@+id/pdf417BarcodeText"
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:layout_margin="10.0dip"
-                    android:gravity="center"
-                    android:textSize="@dimen/text_size_medium"
-                    android:textStyle="bold"
-                    android:layout_weight="1.0" />
-            </LinearLayout>
-            <LinearLayout android:orientation="vertical"
-                          android:padding="10.0dp"
-                          android:layout_width="fill_parent"
-                          android:layout_height="wrap_content">
-                <ImageView
-                    android:layout_width="match_parent"
-                    android:layout_height="@dimen/barcode_disp_height"
-                    android:layout_gravity="center_horizontal"
-                    android:id="@+id/qrcodeBarcode"
-                    android:layout_weight="1.0"/>
-                <TextView
-                    android:id="@+id/qrcodeBarcodeText"
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:layout_margin="10.0dip"
-                    android:gravity="center"
-                    android:textSize="@dimen/text_size_medium"
-                    android:textStyle="bold"
-                    android:layout_weight="1.0" />
-            </LinearLayout>
-            <LinearLayout android:orientation="vertical"
-                          android:padding="10.0dp"
-                          android:layout_width="fill_parent"
-                          android:layout_height="wrap_content">
-                <ImageView
-                    android:layout_width="match_parent"
-                    android:layout_height="@dimen/barcode_disp_height"
-                    android:layout_gravity="center_horizontal"
-                    android:id="@+id/upcaBarcode"
-                    android:layout_weight="1.0"/>
-                <TextView
-                    android:id="@+id/upcaBarcodeText"
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:layout_margin="10.0dip"
-                    android:gravity="center"
-                    android:textSize="@dimen/text_size_medium"
-                    android:textStyle="bold"
-                    android:layout_weight="1.0" />
-            </LinearLayout>
-            <LinearLayout android:orientation="vertical"
-                android:padding="10.0dp"
-                android:layout_width="fill_parent"
-                android:layout_height="wrap_content">
-                <ImageView
-                    android:layout_width="match_parent"
-                    android:layout_height="@dimen/barcode_disp_height"
-                    android:layout_gravity="center_horizontal"
-                    android:id="@+id/upceBarcode"
-                    android:layout_weight="1.0"/>
-                <TextView
-                    android:id="@+id/upceBarcodeText"
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:layout_margin="10.0dip"
-                    android:gravity="center"
-                    android:textSize="@dimen/text_size_medium"
-                    android:textStyle="bold"
-                    android:layout_weight="1.0" />
-            </LinearLayout>
+                android:hint="AB1234"
+                android:importantForAutofill="no"
+                android:inputType="text"
+                android:minHeight="48dp"
+                tools:ignore="ContentDescription" />
         </LinearLayout>
-    </ScrollView>
+        <Button
+            android:id="@+id/noBarcode"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            app:layout_constraintTop_toBottomOf="@+id/barcodeIdLayout"
+            app:layout_constraintBottom_toTopOf="@+id/barcodes"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            android:text="@string/barcodeNoBarcode"
+            android:textColor="#FFFFFF"
+            android:enabled="false" />
+        <ListView
+            android:id="@+id/barcodes"
+            android:layout_width="match_parent"
+            android:layout_height="fill_parent"
+            app:layout_constraintTop_toBottomOf="@+id/noBarcode"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            android:scrollbars="vertical" />
+    </LinearLayout>
 </androidx.coordinatorlayout.widget.CoordinatorLayout>

app/src/main/res/layout/content_main.xml

@@ -38,12 +38,13 @@
 
     <androidx.recyclerview.widget.RecyclerView
         android:id="@+id/list"
-        app:layoutManager="androidx.recyclerview.widget.StaggeredGridLayoutManager"
+        app:layoutManager="androidx.recyclerview.widget.GridLayoutManager"
         app:spanCount="@integer/main_view_card_columns"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
+        android:paddingBottom="80dp"
+        android:clipToPadding="false"
         android:scrollbars="vertical"
-        android:background="@color/mainLoyaltyCardBackground"
         android:visibility="gone"/>
 
 </RelativeLayout>

app/src/main/res/layout/group_layout.xml

@@ -43,8 +43,7 @@
             android:layout_height="@dimen/cardThumbnailSize"
             android:layout_weight="1"
             app:srcCompat="@drawable/ic_baseline_arrow_drop_up_24"
-            android:contentDescription="@string/moveUp"
-            app:tint="@color/iconColor"/>
+            android:contentDescription="@string/moveUp"/>
 
         <ImageButton
             android:id="@+id/moveDown"
@@ -52,8 +51,7 @@
             android:layout_height="@dimen/cardThumbnailSize"
             android:layout_weight="1"
             app:srcCompat="@drawable/ic_baseline_arrow_drop_down_24"
-            android:contentDescription="@string/moveDown"
-            app:tint="@color/iconColor"/>
+            android:contentDescription="@string/moveDown"/>
 
         <ImageButton
             android:id="@+id/edit"
@@ -61,8 +59,7 @@
             android:layout_height="@dimen/cardThumbnailSize"
             android:layout_weight="1"
             app:srcCompat="@drawable/ic_mode_edit_white_24dp"
-            android:contentDescription="@string/edit"
-            app:tint="@color/iconColor"/>
+            android:contentDescription="@string/edit"/>
 
         <ImageButton
             android:id="@+id/delete"
@@ -70,8 +67,7 @@
             android:layout_height="@dimen/cardThumbnailSize"
             android:layout_weight="1"
             app:srcCompat="@drawable/ic_delete_white_24dp"
-            android:contentDescription="@string/delete"
-            app:tint="@color/iconColor"/>
+            android:contentDescription="@string/delete"/>
 
     </LinearLayout>
 

app/src/main/res/layout/group_main.xml

@@ -21,6 +21,8 @@
         android:id="@+id/list"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
+        android:paddingBottom="80dp"
+        android:clipToPadding="false"
         android:scrollbars="vertical"
         android:visibility="gone" />
 </RelativeLayout>

app/src/main/res/layout/import_export_activity.xml

@@ -7,15 +7,13 @@
 
     <com.google.android.material.appbar.AppBarLayout
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:theme="@style/AppTheme.AppBarOverlay">
+        android:layout_height="wrap_content">
 
-        <androidx.appcompat.widget.Toolbar
+        <com.google.android.material.appbar.MaterialToolbar
             android:id="@+id/toolbar"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
-            android:background="?attr/colorPrimary"
-            app:popupTheme="@style/AppTheme.PopupOverlay" />
+            style="?attr/toolbarStyle" />
 
     </com.google.android.material.appbar.AppBarLayout>
 

app/src/main/res/layout/layout_chip_choice.xml

@@ -4,6 +4,6 @@
     android:layout_height="wrap_content"
     android:paddingLeft="8dp"
     android:paddingRight="8dp"
-    style="@style/Widget.MaterialComponents.Chip.Choice"
+    style="@style/Widget.MaterialComponents.Chip.Filter"
     app:checkedIconVisible="true"
-    android:textAppearance="?android:attr/textAppearance" />
+    android:textAppearance="?android:attr/textAppearance" />

app/src/main/res/layout/loyalty_card_edit_activity.xml

@@ -18,15 +18,13 @@
 
     <com.google.android.material.appbar.AppBarLayout
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:theme="@style/AppTheme.AppBarOverlay">
+        android:layout_height="wrap_content">
 
-        <androidx.appcompat.widget.Toolbar
+        <com.google.android.material.appbar.MaterialToolbar
             android:id="@+id/toolbar"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
-            android:background="?attr/colorPrimary"
-            app:popupTheme="@style/AppTheme.PopupOverlay" />
+            style="?attr/toolbarStyle" />
 
         <com.google.android.material.tabs.TabLayout
             android:id="@+id/tabs"
@@ -39,7 +37,7 @@
             <com.google.android.material.tabs.TabItem
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:text="@string/barcode"/>
+                android:text="@string/options"/>
             <com.google.android.material.tabs.TabItem
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
@@ -50,7 +48,6 @@
 
     <ScrollView android:layout_width="fill_parent"
                 android:layout_height="wrap_content"
-                android:background="@color/inputContrastBackground"
                 app:layout_behavior="com.google.android.material.appbar.AppBarLayout$ScrollingViewBehavior">
         <TableLayout
             android:layout_width="match_parent"
@@ -68,14 +65,16 @@
                     android:paddingTop="@dimen/inputPadding"
                     android:orientation="horizontal">
 
-                    <androidx.cardview.widget.CardView
+                    <com.google.android.material.card.MaterialCardView
                         android:layout_width="@dimen/cardThumbnailSize"
                         android:layout_height="@dimen/cardThumbnailSize"
                         android:layout_marginEnd="@dimen/activity_margin"
                         android:layout_gravity="center_vertical"
                         app:cardCornerRadius="4dp"
                         android:paddingHorizontal="@dimen/inputPadding"
-                        app:cardElevation="0dp">
+                        app:cardElevation="0dp"
+                        app:cardBackgroundColor="@android:color/transparent"
+                        android:outlineProvider="none">
 
                         <ImageView
                             android:id="@+id/thumbnail"
@@ -84,7 +83,7 @@
                             android:contentDescription="@string/thumbnailDescription"
                             android:src="@mipmap/ic_launcher"/>
 
-                    </androidx.cardview.widget.CardView>
+                    </com.google.android.material.card.MaterialCardView>
 
                     <com.google.android.material.textfield.TextInputLayout
                         android:id="@+id/storeNameField"
@@ -97,7 +96,7 @@
                             android:id="@+id/storeNameEdit"
                             android:layout_width="match_parent"
                             android:layout_height="wrap_content"
-                            />
+                            android:singleLine="true" />
 
                     </com.google.android.material.textfield.TextInputLayout>
                 </LinearLayout>
@@ -121,11 +120,99 @@
                             android:id="@+id/cardIdView"
                             android:layout_width="match_parent"
                             android:layout_height="wrap_content"
-                            />
+                            android:singleLine="true" />
 
                     </com.google.android.material.textfield.TextInputLayout>
                 </LinearLayout>
 
+                <!-- Barcode ID -->
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:paddingHorizontal="@dimen/inputPadding"
+                    android:paddingTop="@dimen/inputPadding"
+                    android:orientation="horizontal">
+
+                    <!-- Barcode ID -->
+                    <com.google.android.material.textfield.TextInputLayout
+                        android:id="@+id/barcodeIdView"
+                        style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox.ExposedDropdownMenu"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_weight="1.0"
+                        android:hint="@string/barcodeId"
+                        android:labelFor="@+id/barcodeIdView">
+
+                        <AutoCompleteTextView
+                            android:id="@+id/barcodeIdField"
+                            android:layout_width="match_parent"
+                            android:layout_height="wrap_content"
+                            android:inputType="none"/>
+
+                    </com.google.android.material.textfield.TextInputLayout>
+                </LinearLayout>
+
+                <!-- Barcode type -->
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:paddingHorizontal="@dimen/inputPadding"
+                    android:paddingTop="@dimen/inputPadding"
+                    android:orientation="horizontal">
+
+                    <!-- Barcode type -->
+                    <com.google.android.material.textfield.TextInputLayout
+                        android:id="@+id/barcodeTypeView"
+                        style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox.ExposedDropdownMenu"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_weight="1.0"
+                        android:hint="@string/barcodeType"
+                        android:labelFor="@+id/barcodeTypeField">
+
+                        <AutoCompleteTextView
+                            android:id="@+id/barcodeTypeField"
+                            android:layout_width="match_parent"
+                            android:layout_height="wrap_content"
+                            android:inputType="none"/>
+                    </com.google.android.material.textfield.TextInputLayout>
+                </LinearLayout>
+
+                <!-- Barcode -->
+                <LinearLayout android:orientation="horizontal"
+                    android:padding="10.0dip"
+                    android:layout_width="fill_parent"
+                    android:layout_height="wrap_content"
+                    android:id="@+id/barcodeLayout">
+                    <ImageView
+                        android:importantForAccessibility="no"
+                        android:layout_width="0dp"
+                        android:layout_height="@dimen/barcode_disp_height"
+                        android:layout_gravity="center_horizontal"
+                        android:padding="10.0dp"
+                        android:background="#ffffff"
+                        android:id="@+id/barcode"
+                        android:layout_weight="1.0"/>
+                </LinearLayout>
+
+                <!-- Buttons -->
+                <LinearLayout android:orientation="horizontal"
+                    android:padding="10.0dip"
+                    android:layout_width="fill_parent"
+                    android:layout_height="wrap_content"
+                    android:id="@+id/barcodeCaptureLayout">
+                    <Button android:id="@+id/enterButton"
+                        android:layout_margin="@dimen/inputMargin"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:text="@string/editBarcode"
+                        android:layout_weight="1.0"/>
+                </LinearLayout>
+            </TableLayout>
+            <TableLayout
+                android:id="@+id/optionsPart"
+                android:visibility="gone">
+
                 <!-- Note -->
                 <LinearLayout
                     android:layout_width="match_parent"
@@ -159,6 +246,7 @@
                     android:orientation="horizontal">
 
                     <com.google.android.material.chip.ChipGroup
+                        android:contentDescription="@string/groups"
                         android:id="@+id/groupChips"
                         android:layout_height="match_parent"
                         android:layout_width="match_parent"
@@ -238,99 +326,6 @@
                     </com.google.android.material.textfield.TextInputLayout>
                 </LinearLayout>
             </TableLayout>
-            <TableLayout
-                android:id="@+id/barcodePart"
-                android:visibility="gone">
-
-                <!-- Barcode ID -->
-                <LinearLayout
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:paddingHorizontal="@dimen/inputPadding"
-                    android:paddingTop="@dimen/inputPadding"
-                    android:orientation="horizontal">
-
-                    <!-- Barcode ID -->
-                    <com.google.android.material.textfield.TextInputLayout
-                        android:id="@+id/barcodeIdView"
-                        style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox.ExposedDropdownMenu"
-                        android:layout_width="0dp"
-                        android:layout_height="wrap_content"
-                        android:layout_weight="1.0"
-                        android:hint="@string/barcodeId"
-                        android:labelFor="@+id/barcodeIdView">
-
-                        <AutoCompleteTextView
-                            android:id="@+id/barcodeIdField"
-                            android:layout_width="match_parent"
-                            android:layout_height="wrap_content"
-                            android:inputType="none"/>
-
-                    </com.google.android.material.textfield.TextInputLayout>
-                </LinearLayout>
-
-                <!-- Barcode type -->
-                <LinearLayout
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:paddingHorizontal="@dimen/inputPadding"
-                    android:paddingTop="@dimen/inputPadding"
-                    android:orientation="horizontal">
-
-                    <!-- Barcode type -->
-                    <com.google.android.material.textfield.TextInputLayout
-                        android:id="@+id/barcodeTypeView"
-                        style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox.ExposedDropdownMenu"
-                        android:layout_width="0dp"
-                        android:layout_height="wrap_content"
-                        android:layout_weight="1.0"
-                        android:hint="@string/barcodeType"
-                        android:labelFor="@+id/barcodeTypeField">
-
-                        <AutoCompleteTextView
-                            android:id="@+id/barcodeTypeField"
-                            android:layout_width="match_parent"
-                            android:layout_height="wrap_content"
-                            android:inputType="none"/>
-                    </com.google.android.material.textfield.TextInputLayout>
-                </LinearLayout>
-
-                <!-- Barcode -->
-                <View
-                    android:layout_height="@dimen/inputBorderThickness"
-                    android:layout_width="match_parent" />
-
-                <LinearLayout android:orientation="horizontal"
-                              android:padding="10.0dip"
-                              android:layout_width="fill_parent"
-                              android:layout_height="wrap_content"
-                              android:visibility="gone"
-                              android:id="@+id/barcodeLayout">
-                    <ImageView
-                        android:layout_width="0dp"
-                        android:layout_height="@dimen/barcode_disp_height"
-                        android:layout_gravity="center_horizontal"
-                        android:padding="10.0dp"
-                        android:background="#ffffff"
-                        android:id="@+id/barcode"
-                        android:layout_weight="1.0"/>
-                </LinearLayout>
-
-                <!-- Buttons -->
-                <LinearLayout android:orientation="horizontal"
-                    android:padding="10.0dip"
-                    android:layout_width="fill_parent"
-                    android:layout_height="wrap_content"
-                    android:id="@+id/barcodeCaptureLayout">
-                    <Button android:id="@+id/enterButton"
-                        android:layout_margin="@dimen/inputMargin"
-                        android:layout_width="0dp"
-                        android:layout_height="wrap_content"
-                        android:text="@string/editBarcode"
-                        android:textColor="#FFFFFF"
-                        android:layout_weight="1.0"/>
-                </LinearLayout>
-            </TableLayout>
 
             <TableLayout
                 android:id="@+id/picturesPart"
@@ -347,7 +342,7 @@
                     android:paddingTop="@dimen/inputPadding">
 
                     <!-- Front image -->
-                    <androidx.cardview.widget.CardView
+                    <com.google.android.material.card.MaterialCardView
                         android:layout_width="match_parent"
                         android:layout_height="wrap_content"
                         android:layout_gravity="center_vertical"
@@ -367,9 +362,10 @@
                             android:minHeight="50dp"
                             android:contentDescription="@string/frontImageDescription"
                             android:scaleType="fitCenter"
-                            app:srcCompat="@drawable/ic_camera_white" />
+                            app:srcCompat="@drawable/ic_camera_white"
+                            android:background="?attr/colorPrimary" />
 
-                    </androidx.cardview.widget.CardView>
+                    </com.google.android.material.card.MaterialCardView>
                 </LinearLayout>
 
                 <!-- Back image -->
@@ -382,7 +378,7 @@
                     android:paddingTop="@dimen/inputPadding">
 
                     <!-- Back image -->
-                    <androidx.cardview.widget.CardView
+                    <com.google.android.material.card.MaterialCardView
                         android:layout_width="match_parent"
                         android:layout_height="wrap_content"
                         android:layout_gravity="center_vertical"
@@ -402,9 +398,10 @@
                             android:minHeight="50dp"
                             android:contentDescription="@string/backImageDescription"
                             android:scaleType="fitCenter"
-                            app:srcCompat="@drawable/ic_camera_white" />
+                            app:srcCompat="@drawable/ic_camera_white"
+                            android:background="?attr/colorPrimary" />
 
-                    </androidx.cardview.widget.CardView>
+                    </com.google.android.material.card.MaterialCardView>
                 </LinearLayout>
             </TableLayout>
         </TableLayout>

app/src/main/res/layout/loyalty_card_layout.xml

@@ -1,137 +1,175 @@
 <?xml version="1.0" encoding="utf-8"?>
-<com.google.android.material.card.MaterialCardView
-    xmlns:android="http://schemas.android.com/apk/res/android"
+<com.google.android.material.card.MaterialCardView xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/row"
-    android:orientation="horizontal"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:layout_margin="8dp">
 
-    <LinearLayout
+    <androidx.constraintlayout.widget.ConstraintLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:orientation="vertical">
+        android:layout_marginBottom="4dp">
 
-        <LinearLayout
-            android:id="@+id/information_container"
+        <com.google.android.material.card.MaterialCardView
+            android:id="@+id/icon_layout"
             android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:orientation="vertical"
-            android:padding="16dp">
+            android:layout_height="0dp"
+            android:outlineProvider="none"
+            app:cardCornerRadius="8dp"
+            app:strokeWidth="0dp"
+            app:layout_constraintBottom_toTopOf="@+id/store"
+            app:layout_constraintDimensionRatio="85.6f:53.98f"
+            app:layout_constraintTop_toTopOf="parent">
 
-            <RelativeLayout
+            <ImageView
+                android:importantForAccessibility="no"
+                android:id="@+id/thumbnail"
                 android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:orientation="horizontal">
+                android:layout_height="match_parent"
+                android:contentDescription="@string/thumbnailDescription"
+                android:scaleType="fitCenter"
+                android:src="@mipmap/ic_launcher"
+                app:layout_constraintBottom_toBottomOf="parent"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toTopOf="parent" />
 
-                <androidx.cardview.widget.CardView
-                    android:id="@+id/thumbnail_container"
-                    android:layout_width="@dimen/cardThumbnailSize"
-                    android:layout_height="@dimen/cardThumbnailSize"
-                    app:cardCornerRadius="4dp"
-                    android:layout_alignParentStart="true">
+            <ImageView
+                android:importantForAccessibility="no"
+                android:id="@+id/selected_thumbnail"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:contentDescription="@string/thumbnailDescription"
+                android:scaleType="fitCenter"
+                app:layout_constraintBottom_toBottomOf="parent"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toTopOf="parent"
+                app:srcCompat="@drawable/ic_done" />
 
-                    <RelativeLayout
-                        android:id="@+id/thumbnail_front"
-                        android:layout_width="@dimen/cardThumbnailSize"
-                        android:layout_height="@dimen/cardThumbnailSize">
-
-                        <ImageView
-                            android:id="@+id/thumbnail"
-                            android:layout_width="@dimen/cardThumbnailSize"
-                            android:layout_height="@dimen/cardThumbnailSize"
-                            android:contentDescription="@string/thumbnailDescription"
-                            android:src="@mipmap/ic_launcher" />
-
-                    </RelativeLayout>
-
-                    <RelativeLayout
-                        android:id="@+id/thumbnail_back"
-                        android:layout_width="@dimen/cardThumbnailSize"
-                        android:layout_height="@dimen/cardThumbnailSize">
-
-                        <ImageView
-                            android:layout_width="@dimen/cardThumbnailSize"
-                            android:layout_height="@dimen/cardThumbnailSize"
-                            android:layout_centerHorizontal="true"
-                            android:contentDescription="@string/thumbnailDescription"
-                            app:srcCompat="@drawable/ic_done" />
-
-                    </RelativeLayout>
-                </androidx.cardview.widget.CardView>
-
-                <LinearLayout
-                    android:minHeight="@dimen/cardThumbnailSize"
-                    android:layout_height="wrap_content"
-                    android:layout_width="wrap_content"
-                    android:orientation="vertical"
-                    android:layout_gravity="center_vertical"
-                    android:layout_toEndOf="@+id/thumbnail_container">
-
-                    <TextView
-                        android:id="@+id/store"
-                        android:paddingStart="16dp"
-                        android:layout_width="wrap_content"
-                        android:layout_height="match_parent"
-                        android:gravity="left"
-                        android:textAppearance="?attr/textAppearanceHeadline6" />
-                </LinearLayout>
-
-                <ImageView
-                    android:id="@+id/star"
-                    android:layout_width="@dimen/cardThumbnailSize"
-                    android:layout_height="@dimen/cardThumbnailSize"
-                    app:srcCompat="@drawable/ic_starred_white"
-                    android:contentDescription="@string/starImage"
-                    app:tint="?attr/colorControlNormal"
-                    android:layout_alignParentEnd="true"
-                    android:visibility="gone" />
-            </RelativeLayout>
-
-            <TextView
-                android:id="@+id/note"
+            <androidx.constraintlayout.widget.ConstraintLayout
+                android:id="@+id/star"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:layout_marginTop="8dp"
-                android:textAppearance="?attr/textAppearanceBody2"
-                android:textColor="?android:attr/textColorSecondary"
-                android:visibility="gone" />
+                android:layout_gravity="end">
 
-            <View android:id="@+id/info_divider"
-                android:layout_width="match_parent"
-                android:layout_height="1dp"
-                android:layout_marginTop="16dp"
-                android:layout_marginBottom="16dp"
-                android:background="?android:attr/dividerVertical"
-                android:visibility="gone" />
+                <ImageView
+                    android:id="@+id/star_background"
+                    android:layout_width="@dimen/cardThumbnailSize"
+                    android:layout_height="@dimen/cardThumbnailSize"
+                    android:layout_gravity="end"
+                    android:alpha="0.5"
+                    android:contentDescription="@string/starred"
+                    android:elevation="4dp"
+                    android:visibility="visible"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    app:layout_constraintTop_toTopOf="parent"
+                    app:srcCompat="@drawable/ic_starred_white"
+                    tools:ignore="ImageContrastCheck" />
 
-            <RelativeLayout
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:orientation="horizontal">
-                <TextView
-                    android:id="@+id/balance"
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:paddingEnd="8dp"
-                    android:textAppearance="?attr/textAppearanceBody2"
-                    android:textColor="?android:attr/textColorSecondary"
-                    app:drawableLeftCompat="@drawable/ic_baseline_payments_24"
-                    android:drawablePadding="4dp"
-                    android:layout_alignParentStart="true"
-                    android:visibility="gone" />
-                <TextView
-                    android:id="@+id/expiry"
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:textAppearance="?attr/textAppearanceBody2"
-                    android:textColor="?android:attr/textColorSecondary"
-                    app:drawableLeftCompat="@drawable/ic_baseline_access_time_24"
-                    android:drawablePadding="4dp"
-                    android:layout_toEndOf="@+id/balance"
-                    android:visibility="gone" />
-            </RelativeLayout>
-        </LinearLayout>
-    </LinearLayout>
+                <ImageView
+                    android:importantForAccessibility="no"
+                    android:id="@+id/star_border"
+                    android:layout_width="@dimen/cardThumbnailSize"
+                    android:layout_height="@dimen/cardThumbnailSize"
+                    android:layout_gravity="end"
+                    android:alpha="0.5"
+                    android:contentDescription="@string/starImage"
+                    android:elevation="4dp"
+                    android:visibility="visible"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    app:layout_constraintTop_toTopOf="parent"
+                    app:srcCompat="@drawable/ic_unstarred_black"
+                    tools:ignore="ImageContrastCheck" />
+
+            </androidx.constraintlayout.widget.ConstraintLayout>
+
+        </com.google.android.material.card.MaterialCardView>
+
+        <TextView
+            android:id="@+id/store"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="8dp"
+            android:layout_marginEnd="8dp"
+            android:layout_marginBottom="4dp"
+            android:textAppearance="?attr/textAppearanceHeadline1"
+            app:layout_constraintTop_toBottomOf="@+id/icon_layout"
+            app:layout_constraintBottom_toTopOf="@+id/note"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            tools:text="Example store"/>
+
+        <TextView
+            android:id="@+id/note"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="8dp"
+            android:layout_marginEnd="8dp"
+            android:layout_marginBottom="4dp"
+            android:textAppearance="?attr/textAppearanceBody2"
+            android:textColor="?android:attr/textColorSecondary"
+            android:visibility="gone"
+            tools:visibility="visible"
+            app:layout_constraintTop_toBottomOf="@+id/store"
+            app:layout_constraintBottom_toTopOf="@+id/info_divider"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            tools:text="Example note"/>
+
+        <View
+            android:id="@+id/info_divider"
+            android:layout_width="match_parent"
+            android:layout_height="1dp"
+            android:layout_marginStart="4dp"
+            android:layout_marginEnd="4dp"
+            android:layout_marginBottom="8dp"
+            android:background="?android:attr/dividerVertical"
+            android:visibility="gone"
+            tools:visibility="visible"
+            app:layout_constraintTop_toBottomOf="@+id/note"
+            app:layout_constraintBottom_toTopOf="@+id/balance"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"/>
+
+        <TextView
+            android:id="@+id/balance"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="8dp"
+            android:layout_marginEnd="8dp"
+            android:layout_marginBottom="4dp"
+            android:textAppearance="?attr/textAppearanceBody2"
+            android:textColor="?android:attr/textColorSecondary"
+            app:drawableLeftCompat="@drawable/ic_baseline_payments_24"
+            android:drawablePadding="4dp"
+            android:visibility="gone"
+            app:layout_constraintTop_toBottomOf="@+id/info_divider"
+            app:layout_constraintBottom_toTopOf="@+id/expiry"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            tools:visibility="visible"
+            tools:text="525 points"/>
+
+        <TextView
+            android:id="@+id/expiry"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="8dp"
+            android:layout_marginEnd="8dp"
+            android:layout_marginBottom="4dp"
+            android:textAppearance="?attr/textAppearanceBody2"
+            android:textColor="?android:attr/textColorSecondary"
+            app:drawableLeftCompat="@drawable/ic_baseline_access_time_24"
+            android:drawablePadding="4dp"
+            android:visibility="gone"
+            app:layout_constraintTop_toBottomOf="@+id/balance"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            tools:visibility="visible"
+            tools:text="Tomorrow"/>
+    </androidx.constraintlayout.widget.ConstraintLayout>
 </com.google.android.material.card.MaterialCardView>

app/src/main/res/layout/loyalty_card_view_layout.xml

@@ -25,6 +25,7 @@
         app:layout_behavior="@string/appbar_scrolling_view_behavior">
 
         <androidx.constraintlayout.widget.ConstraintLayout
+            android:id="@+id/mainLayout"
             android:layout_width="fill_parent"
             android:layout_height="match_parent"
             android:orientation="vertical">
@@ -54,11 +55,12 @@
                 android:padding="0dp"
                 app:srcCompat="@drawable/ic_baseline_arrow_drop_up_24"
                 android:contentDescription="@string/moveBarcodeToTopOfScreen"
-                app:tint="#ffffff"
+                app:tint="?attr/colorOnPrimary"
                 app:layout_constraintTop_toTopOf="parent"
                 app:layout_constraintBottom_toTopOf="@+id/mainImage"
                 app:layout_constraintEnd_toEndOf="parent"
-                app:layout_constraintStart_toStartOf="parent" />
+                app:layout_constraintStart_toStartOf="parent"
+                android:background="?attr/colorPrimary" />
 
             <ImageView
                 android:id="@+id/mainImage"
@@ -85,10 +87,11 @@
                 android:padding="0dp"
                 app:srcCompat="@drawable/ic_baseline_arrow_drop_down_24"
                 android:contentDescription="@string/moveBarcodeToCenterOfScreen"
-                app:tint="#ffffff"
+                app:tint="?attr/colorOnPrimary"
                 app:layout_constraintTop_toBottomOf="@+id/mainImage"
                 app:layout_constraintEnd_toEndOf="parent"
-                app:layout_constraintStart_toStartOf="parent" />
+                app:layout_constraintStart_toStartOf="parent"
+                android:background="?attr/colorPrimary" />
 
             <LinearLayout
                 android:id="@+id/dotIndicator"
@@ -107,6 +110,7 @@
                 app:layout_constraintTop_toBottomOf="@+id/minimizeButton"/>
 
             <SeekBar
+                android:contentDescription="@string/set_scale"
                 android:id="@+id/barcodeScaler"
                 android:visibility="gone"
                 android:max="100"
@@ -122,6 +126,10 @@
 
             <TextView
                 android:id="@+id/cardIdView"
+                android:enabled="true"
+                android:textIsSelectable="true"
+                android:focusable="true"
+                android:longClickable="true"
                 android:layout_width="0dp"
                 android:layout_height="0dp"
                 android:layout_marginLeft="10.0dip"
@@ -150,9 +158,9 @@
         android:id="@+id/bottom_sheet"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:background="@color/inputBackground"
-        android:fitsSystemWindows="false"
+        android:background="?android:colorBackground"
         android:orientation="vertical"
+        android:paddingTop="0px"
         android:visibility="gone"
         app:behavior_hideable="false"
         app:behavior_peekHeight="80dp"
@@ -164,10 +172,11 @@
             android:layout_width="match_parent"
             android:layout_height="80dp"
             android:layout_gravity="top|start"
+            android:contentDescription="@string/showMoreInfo"
             android:scaleType="fitCenter"
-            android:contentDescription="@string/toggleMoreInfo"
-            app:tint="#ffffff"
-            app:srcCompat="@drawable/ic_baseline_arrow_drop_up_24" />
+            app:srcCompat="@drawable/ic_baseline_arrow_drop_up_24"
+            app:tint="?attr/colorOnPrimary"
+            android:background="?attr/colorPrimary" />
 
         <androidx.core.widget.NestedScrollView
             android:id="@+id/bottomSheetContentWrapper"
@@ -181,93 +190,125 @@
 
                 <TextView
                     android:id="@+id/noteView"
-                    android:autoLink="all"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
+                    android:autoLink="all"
+                    android:enabled="true"
+                    android:focusable="true"
                     android:gravity="center"
+                    android:longClickable="true"
                     android:padding="20dp"
+                    android:textIsSelectable="true"
                     android:textSize="@dimen/singleCardNoteTextSizeMin" />
 
                 <TextView
                     android:id="@+id/groupsView"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
+                    android:enabled="true"
+                    android:focusable="true"
                     android:gravity="center"
+                    android:longClickable="true"
                     android:padding="20dp"
+                    android:textIsSelectable="true"
                     android:textSize="@dimen/singleCardNoteTextSizeMin" />
 
                 <TextView
                     android:id="@+id/balanceView"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
+                    android:enabled="true"
+                    android:focusable="true"
                     android:gravity="center"
+                    android:longClickable="true"
                     android:padding="20dp"
+                    android:textIsSelectable="true"
                     android:textSize="@dimen/singleCardNoteTextSizeMin" />
 
                 <TextView
                     android:id="@+id/expiryView"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
+                    android:enabled="true"
+                    android:focusable="true"
                     android:gravity="center"
+                    android:longClickable="true"
                     android:padding="20dp"
+                    android:textIsSelectable="true"
                     android:textSize="@dimen/singleCardNoteTextSizeMin" />
             </LinearLayout>
         </androidx.core.widget.NestedScrollView>
     </LinearLayout>
 
+
     <com.google.android.material.appbar.AppBarLayout
         android:id="@+id/app_bar_layout"
+        android:layout_width="fill_parent"
+        android:layout_height="wrap_content"
         android:background="@android:color/transparent"
         android:clipChildren="false"
         android:clipToPadding="false"
-        android:layout_width="fill_parent"
-        android:layout_height="wrap_content"
+        android:fitsSystemWindows="true"
         android:weightSum="1.0"
-        android:fitsSystemWindows="true">
+        >
+
+        <com.google.android.material.appbar.MaterialToolbar
+            android:id="@+id/toolbar_landscape"
+            android:layout_width="fill_parent"
+            android:layout_height="?actionBarSize"
+            android:background="@android:color/transparent"
+            android:fitsSystemWindows="false"
+            android:paddingTop="0dp"
+            android:visibility="gone"
+            app:contentInsetStart="72.0dip"
+            app:layout_collapseMode="pin" />
+
         <com.google.android.material.appbar.CollapsingToolbarLayout
             android:id="@+id/collapsingToolbarLayout"
-            android:clipChildren="false"
-            android:clipToPadding="false"
             android:layout_width="fill_parent"
             android:layout_height="wrap_content"
+            android:clipChildren="false"
+            android:clipToPadding="false"
             android:minHeight="56.0dip"
-            android:layout_weight="1.0"
-            app:expandedTitleMarginStart="48dp"
-            app:expandedTitleMarginEnd="64dp"
             app:contentScrim="?colorPrimary"
-            app:expandedTitleGravity="top">
+            app:expandedTitleGravity="top"
+            app:expandedTitleMarginEnd="64dp"
+            app:expandedTitleMarginStart="48dp">
+
             <androidx.appcompat.widget.AppCompatTextView
                 android:id="@+id/storeName"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
-                android:maxLines="1"
-                android:ellipsize="end"
-                android:textColor="@android:color/white"
-                android:textSize="40sp"
-                android:textAlignment="center"
                 android:layout_gravity="center"
                 android:layout_marginTop="?actionBarSize"
                 android:layout_marginBottom="?actionBarSize"
-                app:layout_collapseMode="parallax"
-                android:fitsSystemWindows="true"/>
+                android:ellipsize="end"
+                android:maxLines="1"
+                android:textAlignment="center"
+                android:textColor="@android:color/white"
+                android:textSize="40sp"
+                app:layout_collapseMode="parallax" />
+
             <androidx.appcompat.widget.Toolbar
                 android:id="@id/toolbar"
-                android:background="@android:color/transparent"
-                android:theme="@style/CardView.ActionBarTheme"
                 android:layout_width="fill_parent"
                 android:layout_height="?actionBarSize"
+                android:background="@android:color/transparent"
                 app:contentInsetStart="72.0dip"
                 app:layout_collapseMode="pin" />
+
         </com.google.android.material.appbar.CollapsingToolbarLayout>
-        <androidx.appcompat.widget.Toolbar
-            android:id="@+id/toolbar_landscape"
-            android:visibility="gone"
-            android:background="@android:color/transparent"
-            android:theme="@style/CardView.ActionBarTheme"
-            android:layout_width="fill_parent"
-            android:layout_height="?actionBarSize"
-            app:contentInsetStart="72.0dip"
-            app:layout_collapseMode="pin"
-            android:paddingTop="6dp" />
     </com.google.android.material.appbar.AppBarLayout>
+
+    <ImageView
+        android:id="@+id/icon_image"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_alignParentTop="true"
+        android:fitsSystemWindows="true"
+        android:scaleType="centerCrop"
+        app:srcCompat="@drawable/ic_launcher_foreground"
+        tools:ignore="ContentDescription" />
+
+
 </androidx.coordinatorlayout.widget.CoordinatorLayout>

app/src/main/res/layout/main_activity.xml

@@ -19,15 +19,13 @@
 
     <com.google.android.material.appbar.AppBarLayout
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:theme="@style/AppTheme.AppBarOverlay">
+        android:layout_height="wrap_content">
 
-        <androidx.appcompat.widget.Toolbar
+        <com.google.android.material.appbar.MaterialToolbar
             android:id="@+id/toolbar"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
-            android:background="?attr/colorPrimary"
-            app:popupTheme="@style/AppTheme.PopupOverlay"/>
+            style="?attr/toolbarStyle" />
 
         <com.google.android.material.tabs.TabLayout
             android:id="@+id/groups"