Files
Android/app/src/main/java/protect/card_locker/ScanActivity.java
2023-04-14 20:56:29 +02:00

296 lines
12 KiB
Java

package protect.card_locker;
import android.Manifest;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Color;
import android.net.Uri;
import android.os.Bundle;
import android.provider.Settings;
import android.util.DisplayMetrics;
import android.util.Log;
import android.util.TypedValue;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Toast;
import androidx.activity.result.ActivityResultLauncher;
import androidx.activity.result.contract.ActivityResultContracts;
import androidx.annotation.NonNull;
import androidx.appcompat.widget.Toolbar;
import androidx.core.content.ContextCompat;
import com.google.zxing.ResultPoint;
import com.google.zxing.client.android.Intents;
import com.journeyapps.barcodescanner.BarcodeCallback;
import com.journeyapps.barcodescanner.BarcodeResult;
import com.journeyapps.barcodescanner.CaptureManager;
import com.journeyapps.barcodescanner.DecoratedBarcodeView;
import java.util.List;
import protect.card_locker.databinding.CustomBarcodeScannerBinding;
import protect.card_locker.databinding.ScanActivityBinding;
/**
* 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
*/
public class ScanActivity extends CatimaAppCompatActivity {
private ScanActivityBinding binding;
private CustomBarcodeScannerBinding customBarcodeScannerBinding;
private static final String TAG = "Catima";
private static final int MEDIUM_SCALE_FACTOR_DIP = 460;
private static final int COMPAT_SCALE_FACTOR_DIP = 320;
private static final int PERMISSION_SCAN_ADD_FROM_IMAGE = 100;
private CaptureManager capture;
private DecoratedBarcodeView barcodeScannerView;
private String cardId;
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;
addGroup = b != null ? b.getString(LoyaltyCardEditActivity.BUNDLE_ADDGROUP) : null;
Log.d(TAG, "Scan activity: id=" + cardId);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
binding = ScanActivityBinding.inflate(getLayoutInflater());
customBarcodeScannerBinding = CustomBarcodeScannerBinding.bind(binding.zxingBarcodeScanner);
setTitle(R.string.scanCardBarcode);
setContentView(binding.getRoot());
Toolbar toolbar = binding.toolbar;
setSupportActionBar(toolbar);
enableToolbarBackButton();
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()));
customBarcodeScannerBinding.addFromImage.setOnClickListener(this::addFromImage);
customBarcodeScannerBinding.addManually.setOnClickListener(this::addManually);
barcodeScannerView = binding.zxingBarcodeScanner;
// Even though we do the actual decoding with the barcodeScannerView
// CaptureManager needs to be running to show the camera and scanning bar
capture = new CatimaCaptureManager(this, barcodeScannerView);
Intent captureIntent = new Intent();
Bundle captureIntentBundle = new Bundle();
captureIntentBundle.putBoolean(Intents.Scan.BEEP_ENABLED, false);
captureIntent.putExtras(captureIntentBundle);
capture.initializeFromIntent(captureIntent, savedInstanceState);
barcodeScannerView.decodeSingle(new BarcodeCallback() {
@Override
public void barcodeResult(BarcodeResult result) {
Intent scanResult = new Intent();
Bundle scanResultBundle = new Bundle();
scanResultBundle.putString(BarcodeSelectorActivity.BARCODE_CONTENTS, result.getText());
scanResultBundle.putString(BarcodeSelectorActivity.BARCODE_FORMAT, result.getBarcodeFormat().name());
if (addGroup != null) {
scanResultBundle.putString(LoyaltyCardEditActivity.BUNDLE_ADDGROUP, addGroup);
}
scanResult.putExtras(scanResultBundle);
ScanActivity.this.setResult(RESULT_OK, scanResult);
finish();
}
@Override
public void possibleResultPoints(List<ResultPoint> resultPoints) {
}
});
}
@Override
protected void onResume() {
super.onResume();
capture.onResume();
if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED) {
showCameraPermissionMissingText(false);
}
scaleScreen();
}
@Override
protected void onPause() {
super.onPause();
capture.onPause();
}
@Override
protected void onDestroy() {
super.onDestroy();
capture.onDestroy();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
capture.onSaveInstanceState(outState);
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
return barcodeScannerView.onKeyDown(keyCode, event) || super.onKeyDown(keyCode, event);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
if (getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH)) {
getMenuInflater().inflate(R.menu.scan_menu, menu);
}
barcodeScannerView.setTorchOff();
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item.getItemId() == android.R.id.home) {
setResult(Activity.RESULT_CANCELED);
finish();
return true;
} else if (item.getItemId() == R.id.action_toggle_flashlight) {
if (torch) {
torch = false;
barcodeScannerView.setTorchOff();
item.setTitle(R.string.turn_flashlight_on);
item.setIcon(R.drawable.ic_flashlight_off_white_24dp);
} else {
torch = true;
barcodeScannerView.setTorchOn();
item.setTitle(R.string.turn_flashlight_off);
item.setIcon(R.drawable.ic_flashlight_on_white_24dp);
}
}
return super.onOptionsItemSelected(item);
}
private void handleActivityResult(int requestCode, int resultCode, Intent intent) {
super.onActivityResult(requestCode, resultCode, intent);
BarcodeValues barcodeValues = Utils.parseSetBarcodeActivityResult(requestCode, resultCode, intent, this);
if (barcodeValues.isEmpty()) {
return;
}
Intent manualResult = new Intent();
Bundle manualResultBundle = new Bundle();
manualResultBundle.putString(BarcodeSelectorActivity.BARCODE_CONTENTS, barcodeValues.content());
manualResultBundle.putString(BarcodeSelectorActivity.BARCODE_FORMAT, barcodeValues.format());
if (addGroup != null) {
manualResultBundle.putString(LoyaltyCardEditActivity.BUNDLE_ADDGROUP, addGroup);
}
manualResult.putExtras(manualResultBundle);
ScanActivity.this.setResult(RESULT_OK, manualResult);
finish();
}
public void addManually(View view) {
Intent i = new Intent(getApplicationContext(), BarcodeSelectorActivity.class);
if (cardId != null) {
final Bundle b = new Bundle();
b.putString("initialCardId", cardId);
i.putExtras(b);
}
manualAddLauncher.launch(i);
}
public void addFromImage(View view) {
PermissionUtils.requestStorageReadPermission(this, PERMISSION_SCAN_ADD_FROM_IMAGE);
}
private void addFromImageAfterPermission() {
Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
photoPickerIntent.setType("image/*");
Intent contentIntent = new Intent(Intent.ACTION_GET_CONTENT);
contentIntent.setType("image/*");
Intent chooserIntent = Intent.createChooser(photoPickerIntent, getString(R.string.addFromImage));
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Intent[] { contentIntent });
try {
photoPickerLauncher.launch(chooserIntent);
} catch (ActivityNotFoundException e) {
Toast.makeText(getApplicationContext(), R.string.failedLaunchingPhotoPicker, Toast.LENGTH_LONG).show();
Log.e(TAG, "No activity found to handle intent", e);
}
}
private void showCameraPermissionMissingText(boolean show) {
customBarcodeScannerBinding.cameraPermissionDeniedLayout.cameraPermissionDeniedClickableArea.setOnClickListener(show ? v -> {
navigateToSystemPermissionSetting();
} : null);
customBarcodeScannerBinding.cardInputContainer.setBackgroundColor(show ? obtainThemeAttribute(com.google.android.material.R.attr.colorSurface) : Color.TRANSPARENT);
customBarcodeScannerBinding.cameraPermissionDeniedLayout.getRoot().setVisibility(show ? View.VISIBLE : View.GONE);
}
private void scaleScreen() {
DisplayMetrics displayMetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
int screenHeight = displayMetrics.heightPixels;
float mediumSizePx = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,MEDIUM_SCALE_FACTOR_DIP,getResources().getDisplayMetrics());
boolean shouldScaleSmaller = screenHeight < mediumSizePx;
customBarcodeScannerBinding.cameraPermissionDeniedLayout.cameraPermissionDeniedIcon.setVisibility(shouldScaleSmaller ? View.GONE : View.VISIBLE);
customBarcodeScannerBinding.cameraPermissionDeniedLayout.cameraPermissionDeniedTitle.setVisibility(shouldScaleSmaller ? View.GONE : View.VISIBLE);
}
private int obtainThemeAttribute(int attribute) {
TypedValue typedValue = new TypedValue();
getTheme().resolveAttribute(attribute, typedValue, true);
return typedValue.data;
}
private void navigateToSystemPermissionSetting() {
Intent permissionIntent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS, Uri.fromParts("package", getPackageName(), null));
permissionIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(permissionIntent);
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
onMockedRequestPermissionsResult(requestCode, permissions, grantResults);
}
public void onMockedRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
boolean granted = grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED;
if (requestCode == CaptureManager.getCameraPermissionReqCode()) {
showCameraPermissionMissingText(!granted);
} else if (requestCode == PERMISSION_SCAN_ADD_FROM_IMAGE) {
if (granted) {
addFromImageAfterPermission();
} else {
Toast.makeText(this, R.string.storageReadPermissionRequired, Toast.LENGTH_LONG).show();
}
}
}
}