Create splash screen

CHANGELOG.md

@@ -5,6 +5,7 @@
 Changes:
 
 - Fix widget creating different-looking shortcut than app shortcuts
+- Replace default Android black screen with splash screen
 
 ## v2.2.2 (2021-08-08)
 

app/src/main/AndroidManifest.xml

@@ -29,7 +29,7 @@
         <activity
             android:name="protect.card_locker.MainActivity"
             android:label="@string/app_name"
-            android:theme="@style/AppTheme.NoActionBar">
+            android:theme="@style/SplashTheme">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
 

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

@@ -177,6 +177,7 @@ public class MainActivity extends AppCompatActivity implements LoyaltyCardCursor
     @Override
     protected void onCreate(Bundle inputSavedInstanceState)
     {
+        setTheme(R.style.AppTheme_NoActionBar);
         super.onCreate(inputSavedInstanceState);
         setContentView(R.layout.main_activity);
         Toolbar toolbar = findViewById(R.id.toolbar);

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

@@ -0,0 +1,7 @@
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@color/ic_launcher_background"/>
+    <item android:gravity="center"
+        android:width="256dp"
+        android:height="256dp"
+        android:drawable="@drawable/ic_launcher_foreground" />
+</layer-list>

app/src/main/res/values/styles.xml

@@ -1,5 +1,4 @@
 <resources>
-
     <!-- Base application theme. -->
     <style name="AppTheme" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
         <!-- Customize your theme here. -->
@@ -17,6 +16,10 @@
         <item name="windowNoTitle">true</item>
     </style>
 
+    <style name="SplashTheme" parent="@style/AppTheme">
+        <item name="android:windowBackground">@drawable/background_splash</item>
+    </style>
+
     <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.MaterialComponents.Dark.ActionBar"/>
 
     <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.MaterialComponents.Light"/>