@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_scanner);

    SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(getBaseContext());

    permissionNeededExplanation = findViewById(R.id.activity_scanner_permission_needed_explanation);
    barcodeScannerView = findViewById(R.id.zxing_barcode_scanner);

    barcodeScannerView.getBarcodeView().addStateListener(stateListener);

    beepManager = new BeepManager(this);

    if (!getIntent().getBooleanExtra(Intents.Scan.BEEP_ENABLED, true) && preferences.getBoolean("pref_enable_beep_on_scan", true)) {
        beepManager.setBeepEnabled(false);
    }

    if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        initScanWithPermissionCheck();
    } else {
        initScan();
    }
}
 

private void encodeContentsFromZXingIntent(Intent intent) {
   // Default to QR_CODE if no format given.
  String formatString = intent.getStringExtra(Intents.Encode.FORMAT);
  format = null;
  if (formatString != null) {
    try {
      format = BarcodeFormat.valueOf(formatString);
    } catch (IllegalArgumentException iae) {
      // Ignore it then
    }
  }
  if (format == null || format == BarcodeFormat.QR_CODE) {
    String type = intent.getStringExtra(Intents.Encode.TYPE);
    if (type != null && !type.isEmpty()) {
      this.format = BarcodeFormat.QR_CODE;
      encodeQRCodeContents(intent, type);
    }
  } else {
    String data = intent.getStringExtra(Intents.Encode.DATA);
    if (data != null && !data.isEmpty()) {
      contents = data;
      displayContents = data;
      title = activity.getString(R.string.contents_text);
    }
  }
}
 

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == IntentIntegrator.REQUEST_CODE) {
        if (resultCode == RESULT_OK) {
            final String contents = data.getStringExtra(Intents.Scan.RESULT);
            mInput.postDelayed(new Runnable() {
                @Override
                public void run() {
                    mInput.setText(contents);
                    if (getContext() != null) {
                        Toast.makeText(getContext(), R.string.decoded, Toast.LENGTH_SHORT).show();
                    }
                }
            }, 200);
        }

    } else if (requestCode == REQUEST_PICK_IMAGE) {
        if (resultCode == RESULT_OK) {
            if (mDecodeImageTask != null && !mDecodeImageTask.isCancelled()) {
                mDecodeImageTask.cancel(true);
            }
            mDecodeImageTask = new DecodeImageTask(getContext().getApplicationContext(), mInput);
            mDecodeImageTask.execute(data.getData());
        }

    }
}
 

@Override
public void onCreate(Bundle icicle) {
  super.onCreate(icicle);

  // Make sure that expired cookies are removed on launch.
  CookieSyncManager.createInstance(this);
  CookieManager.getInstance().removeExpiredCookie();

  Intent intent = getIntent();
  if (intent == null || !Intents.SearchBookContents.ACTION.equals(intent.getAction())) {
    finish();
    return;
  }

  isbn = intent.getStringExtra(Intents.SearchBookContents.ISBN);
  if (LocaleManager.isBookSearchUrl(isbn)) {
    setTitle(getString(R.string.sbc_name));
  } else {
    setTitle(getString(R.string.sbc_name) + ": ISBN " + isbn);
  }

  setContentView(R.layout.search_book_contents);
  queryTextView = (EditText) findViewById(R.id.query_text_view);

  String initialQuery = intent.getStringExtra(Intents.SearchBookContents.QUERY);
  if (initialQuery != null && !initialQuery.isEmpty()) {
    // Populate the search box but don't trigger the search
    queryTextView.setText(initialQuery);
  }
  queryTextView.setOnKeyListener(keyListener);

  queryButton = findViewById(R.id.query_button);
  queryButton.setOnClickListener(buttonListener);

  resultListView = (ListView) findViewById(R.id.result_list_view);
  LayoutInflater factory = LayoutInflater.from(this);
  headerView = (TextView) factory.inflate(R.layout.search_book_contents_header,
      resultListView, false);
  resultListView.addHeaderView(headerView);
}
 

private boolean encodeContentsFromZXingIntent(Intent intent) {
   // Default to QR_CODE if no format given.
  String formatString = intent.getStringExtra(Intents.Encode.FORMAT);
  format = null;
  if (formatString != null) {
    try {
      format = BarcodeFormat.valueOf(formatString);
    } catch (IllegalArgumentException iae) {
      // Ignore it then
    }
  }
  if (format == null || format == BarcodeFormat.QR_CODE) {
    String type = intent.getStringExtra(Intents.Encode.TYPE);
    if (type == null || type.length() == 0) {
      return false;
    }
    this.format = BarcodeFormat.QR_CODE;
    encodeQRCodeContents(intent, type);
  } else {
    String data = intent.getStringExtra(Intents.Encode.DATA);
    if (data != null && data.length() > 0) {
      contents = data;
      displayContents = data;
      title = activity.getString(R.string.contents_text);
    }
  }
  return contents != null && contents.length() > 0;
}
 

private void showTextAsBarcode(String text) {
  Log.i(TAG, "Showing text as barcode: " + text);
  if (text == null) {
    return; // Show error?
  }
  Intent intent = new Intent(Intents.Encode.ACTION);
  intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
  intent.putExtra(Intents.Encode.TYPE, Contents.Type.TEXT);
  intent.putExtra(Intents.Encode.DATA, text);
  intent.putExtra(Intents.Encode.FORMAT, BarcodeFormat.QR_CODE.toString());
  startActivity(intent);
}
 

@Override
public void onCreate(Bundle icicle) {
  super.onCreate(icicle);
  Intent intent = getIntent();
  if (intent == null) {
    finish();
  } else {
    String action = intent.getAction();
    if (Intents.Encode.ACTION.equals(action) || Intent.ACTION_SEND.equals(action)) {
      setContentView(R.layout.encode);
    } else {
      finish();
    }
  }
}
 

@Override
public boolean onCreateOptionsMenu(Menu menu) {
  MenuInflater menuInflater = getMenuInflater();
  menuInflater.inflate(R.menu.encode, menu);
  boolean useVcard = qrCodeEncoder != null && qrCodeEncoder.isUseVCard();
  int encodeNameResource = useVcard ? R.string.menu_encode_mecard : R.string.menu_encode_vcard;
  MenuItem encodeItem = menu.findItem(R.id.menu_encode);
  encodeItem.setTitle(encodeNameResource);
  Intent intent = getIntent();
  if (intent != null) {
    String type = intent.getStringExtra(Intents.Encode.TYPE);
    encodeItem.setVisible(Contents.Type.CONTACT.equals(type));
  }
  return super.onCreateOptionsMenu(menu);
}
 

QRCodeEncoder(Context activity, Intent intent, int dimension, boolean useVCard) throws WriterException {
  this.activity = activity;
  this.dimension = dimension;
  this.useVCard = useVCard;
  String action = intent.getAction();
  if (Intents.Encode.ACTION.equals(action)) {
    encodeContentsFromZXingIntent(intent);
  } else if (Intent.ACTION_SEND.equals(action)) {
    encodeContentsFromShareIntent(intent);
  }
}
 

private boolean encodeContentsFromZXingIntent(Intent intent) {
   // Default to QR_CODE if no format given.
  String formatString = intent.getStringExtra(Intents.Encode.FORMAT);
  format = null;
  if (formatString != null) {
    try {
      format = BarcodeFormat.valueOf(formatString);
    } catch (IllegalArgumentException iae) {
      // Ignore it then
    }
  }
  if (format == null || format == BarcodeFormat.QR_CODE) {
    String type = intent.getStringExtra(Intents.Encode.TYPE);
    if (type == null || type.isEmpty()) {
      return false;
    }
    this.format = BarcodeFormat.QR_CODE;
    encodeQRCodeContents(intent, type);
  } else {
    String data = intent.getStringExtra(Intents.Encode.DATA);
    if (data != null && !data.isEmpty()) {
      contents = data;
      displayContents = data;
      title = activity.getString(R.string.contents_text);
    }
  }
  return contents != null && !contents.isEmpty();
}
 

@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
  if (adapter.getItem(position).getResult() != null) {
    Intent intent = new Intent(this, CaptureActivity.class);
    intent.putExtra(Intents.History.ITEM_NUMBER, position);
    setResult(Activity.RESULT_OK, intent);
    finish();
  }
}
 

@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
  if (adapter.getItem(position).getResult() != null) {
    Intent intent = new Intent(this, CaptureActivity.class);
    intent.putExtra(Intents.History.ITEM_NUMBER, position);
    setResult(Activity.RESULT_OK, intent);
    finish();
  }
}
 

@Override
public void onCreate(Bundle icicle) {
  super.onCreate(icicle);
  Intent intent = getIntent();
  if (intent == null) {
    finish();
  } else {
    String action = intent.getAction();
    if (Intents.Encode.ZX_ACTION.equals(action) || Intents.Encode.ACTION.equals(action) || Intent.ACTION_SEND.equals(action)) {
      setContentView(R.layout.encode);
    } else {
      finish();
    }
  }
}
 

@Override
public boolean onCreateOptionsMenu(Menu menu) {
  MenuInflater menuInflater = getMenuInflater();
  menuInflater.inflate(R.menu.encode, menu);
  boolean useVcard = qrCodeEncoder != null && qrCodeEncoder.isUseVCard();
  int encodeNameResource = useVcard ? R.string.menu_encode_mecard : R.string.menu_encode_vcard;
  MenuItem encodeItem = menu.findItem(R.id.menu_encode);
  encodeItem.setTitle(encodeNameResource);
  Intent intent = getIntent();
  if (intent != null) {
    String type = intent.getStringExtra(Intents.Encode.TYPE);
    encodeItem.setVisible(Contents.Type.CONTACT.equals(type));
  }
  return super.onCreateOptionsMenu(menu);
}
 

QRCodeEncoder(Context activity, Intent intent, int dimension, boolean useVCard) throws WriterException {
  this.activity = activity;
  this.dimension = dimension;
  this.useVCard = useVCard;
  String action = intent.getAction();
  if (action.equals(Intents.Encode.ACTION) || action.equals(Intents.Encode.ZX_ACTION)) {
    encodeContentsFromZXingIntent(intent);
  } else if (action.equals(Intent.ACTION_SEND)) {
    encodeContentsFromShareIntent(intent);
  }
}
 

private boolean encodeContentsFromZXingIntent(Intent intent) {
   // Default to QR_CODE if no format given.
  String formatString = intent.getStringExtra(Intents.Encode.FORMAT);
  format = null;
  if (formatString != null) {
    try {
      format = BarcodeFormat.valueOf(formatString);
    } catch (IllegalArgumentException iae) {
      // Ignore it then
    }
  }
  if (format == null || format == BarcodeFormat.QR_CODE) {
    String type = intent.getStringExtra(Intents.Encode.TYPE);
    if (type == null || type.isEmpty()) {
      return false;
    }
    this.format = BarcodeFormat.QR_CODE;
    encodeQRCodeContents(intent, type);
  } else {
    String data = intent.getStringExtra(Intents.Encode.DATA);
    if (data != null && !data.isEmpty()) {
      contents = data;
      displayContents = data;
      title = activity.getString(R.string.contents_text);
    }
  }
  return contents != null && !contents.isEmpty();
}
 

public final void initiateScan(Collection<String> desiredBarcodeFormats, int cameraId) {
        Intent intentScan = new Intent(BS_PACKAGE + ".SCAN");
        intentScan.addCategory(Intent.CATEGORY_DEFAULT);

//        PERF issue : The following commented lines increases the camera resume time
//        intentScan.putExtra(Intents.Scan.AUTO_FOCUS, autoFocus);
//        intentScan.putExtra((Intents.Scan.FLASH), flash);

        intentScan.putExtra(Intents.Scan.VIBRATE, vibrate);
        intentScan.putExtra((Intents.Scan.BEEP), playBeep);

        if(iconID != null) intentScan.putExtra(Intents.Scan.ICON_ID,iconID);
        if(toolbarColor != null) intentScan.putExtra(Intents.Scan.TOOLBAR_COLOR,toolbarColor);
        if(infoBoxColor != null) intentScan.putExtra(Intents.Scan.INFO_BOX_COLOR,infoBoxColor);
        if(infoBoxVisibility != null) intentScan.putExtra(Intents.Scan.INFO_BOX_VISIBILITY,infoBoxVisibility);
        if(info != null) intentScan.putExtra(Intents.Scan.INFO,info);

        // check which types of codes to scan for
        if (desiredBarcodeFormats != null) {
            // set the desired barcode types
            StringBuilder joinedByComma = new StringBuilder();
            for (String format : desiredBarcodeFormats) {
                if (joinedByComma.length() > 0) {
                    joinedByComma.append(',');
                }
                joinedByComma.append(format);
            }
            intentScan.putExtra("SCAN_FORMATS", joinedByComma.toString());
        }

        // check requested camera ID
        if (cameraId >= 0) {
            intentScan.putExtra("SCAN_CAMERA_ID", cameraId);
        }

        intentScan.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        intentScan.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
        attachMoreExtras(intentScan);
        startActivityForResult(intentScan, REQUEST_CODE);
    }
 

@Override
public void onCreate(Bundle icicle) {
  super.onCreate(icicle);

  // Make sure that expired cookies are removed on launch.
  CookieSyncManager.createInstance(this);
  CookieManager.getInstance().removeExpiredCookie();

  Intent intent = getIntent();
  if (intent == null || !intent.getAction().equals(Intents.SearchBookContents.ACTION)) {
    finish();
    return;
  }

  isbn = intent.getStringExtra(Intents.SearchBookContents.ISBN);
  if (LocaleManager.isBookSearchUrl(isbn)) {
    setTitle(getString(R.string.sbc_name));
  } else {
    setTitle(getString(R.string.sbc_name) + ": ISBN " + isbn);
  }

  setContentView(R.layout.search_book_contents);
  queryTextView = (EditText) findViewById(R.id.query_text_view);

  String initialQuery = intent.getStringExtra(Intents.SearchBookContents.QUERY);
  if (initialQuery != null && !initialQuery.isEmpty()) {
    // Populate the search box but don't trigger the search
    queryTextView.setText(initialQuery);
  }
  queryTextView.setOnKeyListener(keyListener);

  queryButton = findViewById(R.id.query_button);
  queryButton.setOnClickListener(buttonListener);

  resultListView = (ListView) findViewById(R.id.result_list_view);
  LayoutInflater factory = LayoutInflater.from(this);
  headerView = (TextView) factory.inflate(R.layout.search_book_contents_header,
      resultListView, false);
  resultListView.addHeaderView(headerView);
}
 

private void launchSearch(String text) {
  Intent intent = new Intent(Intents.Encode.ACTION);
  intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
  intent.putExtra(Intents.Encode.TYPE, Contents.Type.TEXT);
  intent.putExtra(Intents.Encode.DATA, text);
  intent.putExtra(Intents.Encode.FORMAT, BarcodeFormat.QR_CODE.toString());
  startActivity(intent);
}
 

private void showTextAsBarcode(String text) {
  Log.i(TAG, "Showing text as barcode: " + text);
  if (text == null) {
    return; // Show error?
  }
  Intent intent = new Intent(Intents.Encode.ACTION);
  intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
  intent.putExtra(Intents.Encode.TYPE, Contents.Type.TEXT);
  intent.putExtra(Intents.Encode.DATA, text);
  intent.putExtra(Intents.Encode.FORMAT, BarcodeFormat.QR_CODE.toString());
  startActivity(intent);
}
 

@Override
public void onCreate(Bundle icicle) {
  super.onCreate(icicle);
  Intent intent = getIntent();
  if (intent == null) {
    finish();
  } else {
    String action = intent.getAction();
    if (Intents.Encode.ACTION.equals(action) || Intent.ACTION_SEND.equals(action)) {
      setContentView(R.layout.encode);
    } else {
      finish();
    }
  }
}
 

@Override
public boolean onCreateOptionsMenu(Menu menu) {
  MenuInflater menuInflater = getMenuInflater();
  menuInflater.inflate(R.menu.encode, menu);
  boolean useVcard = qrCodeEncoder != null && qrCodeEncoder.isUseVCard();
  int encodeNameResource = useVcard ? R.string.menu_encode_mecard : R.string.menu_encode_vcard;
  MenuItem encodeItem = menu.findItem(R.id.menu_encode);
  encodeItem.setTitle(encodeNameResource);
  Intent intent = getIntent();
  if (intent != null) {
    String type = intent.getStringExtra(Intents.Encode.TYPE);
    encodeItem.setVisible(Contents.Type.CONTACT.equals(type));
  }
  return super.onCreateOptionsMenu(menu);
}
 

QRCodeEncoder(Context activity, Intent intent, int dimension, boolean useVCard) throws WriterException {
  this.activity = activity;
  this.dimension = dimension;
  this.useVCard = useVCard;
  String action = intent.getAction();
  if (action.equals(Intents.Encode.ACTION)) {
    encodeContentsFromZXingIntent(intent);
  } else if (action.equals(Intent.ACTION_SEND)) {
    encodeContentsFromShareIntent(intent);
  }
}
 

private boolean encodeContentsFromZXingIntent(Intent intent) {
   // Default to QR_CODE if no format given.
  String formatString = intent.getStringExtra(Intents.Encode.FORMAT);
  format = null;
  if (formatString != null) {
    try {
      format = BarcodeFormat.valueOf(formatString);
    } catch (IllegalArgumentException iae) {
      // Ignore it then
    }
  }
  if (format == null || format == BarcodeFormat.QR_CODE) {
    String type = intent.getStringExtra(Intents.Encode.TYPE);
    if (type == null || type.isEmpty()) {
      return false;
    }
    this.format = BarcodeFormat.QR_CODE;
    encodeQRCodeContents(intent, type);
  } else {
    String data = intent.getStringExtra(Intents.Encode.DATA);
    if (data != null && !data.isEmpty()) {
      contents = data;
      displayContents = data;
      title = activity.getString(R.string.contents_text);
    }
  }
  return contents != null && !contents.isEmpty();
}
 

@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
  if (adapter.getItem(position).getResult() != null) {
    Intent intent = new Intent(this, CaptureActivity.class);
    intent.putExtra(Intents.History.ITEM_NUMBER, position);
    setResult(Activity.RESULT_OK, intent);
    finish();
  }
}
 

public void addHistoryItem(Result result, ResultHandler handler) {
  // Do not save this item to the history if the preference is turned off, or the contents are
  // considered secure.
  if (!activity.getIntent().getBooleanExtra(Intents.Scan.SAVE_HISTORY, true) ||
      handler.areContentsSecure() || !enableHistory) {
    return;
  }

  SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(activity);
  if (!prefs.getBoolean(PreferencesActivity.KEY_REMEMBER_DUPLICATES, false)) {
    deletePrevious(result.getText());
  }

  ContentValues values = new ContentValues();
  values.put(DBHelper.TEXT_COL, result.getText());
  values.put(DBHelper.FORMAT_COL, result.getBarcodeFormat().toString());
  values.put(DBHelper.DISPLAY_COL, handler.getDisplayContents().toString());
  values.put(DBHelper.TIMESTAMP_COL, System.currentTimeMillis());

  SQLiteOpenHelper helper = new DBHelper(activity);
  SQLiteDatabase db = null;
  try {
    db = helper.getWritableDatabase();      
    // Insert the new entry into the DB.
    db.insert(DBHelper.TABLE_NAME, DBHelper.TIMESTAMP_COL, values);
  } finally {
    close(null, db);
  }
}
 

@Override
public void onCreate(Bundle icicle) {
  super.onCreate(icicle);

  // Make sure that expired cookies are removed on launch.
  CookieSyncManager.createInstance(this);
  CookieManager.getInstance().removeExpiredCookie();

  Intent intent = getIntent();
  if (intent == null || !intent.getAction().equals(Intents.SearchBookContents.ACTION)) {
    finish();
    return;
  }

  isbn = intent.getStringExtra(Intents.SearchBookContents.ISBN);
  if (LocaleManager.isBookSearchUrl(isbn)) {
    setTitle(getString(R.string.sbc_name));
  } else {
    setTitle(getString(R.string.sbc_name) + ": ISBN " + isbn);
  }

  setContentView(R.layout.search_book_contents);
  queryTextView = (EditText) findViewById(R.id.query_text_view);

  String initialQuery = intent.getStringExtra(Intents.SearchBookContents.QUERY);
  if (initialQuery != null && !initialQuery.isEmpty()) {
    // Populate the search box but don't trigger the search
    queryTextView.setText(initialQuery);
  }
  queryTextView.setOnKeyListener(keyListener);

  queryButton = findViewById(R.id.query_button);
  queryButton.setOnClickListener(buttonListener);

  resultListView = (ListView) findViewById(R.id.result_list_view);
  LayoutInflater factory = LayoutInflater.from(this);
  headerView = (TextView) factory.inflate(R.layout.search_book_contents_header,
      resultListView, false);
  resultListView.addHeaderView(headerView);
}
 

private void launchSearch(String text) {
  Intent intent = new Intent(Intents.Encode.ACTION);
  intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
  intent.putExtra(Intents.Encode.TYPE, Contents.Type.TEXT);
  intent.putExtra(Intents.Encode.DATA, text);
  intent.putExtra(Intents.Encode.FORMAT, BarcodeFormat.QR_CODE.toString());
  startActivity(intent);
}
 

private void showTextAsBarcode(String text) {
  Log.i(TAG, "Showing text as barcode: " + text);
  if (text == null) {
    return; // Show error?
  }
  Intent intent = new Intent(Intents.Encode.ACTION);
  intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
  intent.putExtra(Intents.Encode.TYPE, Contents.Type.TEXT);
  intent.putExtra(Intents.Encode.DATA, text);
  intent.putExtra(Intents.Encode.FORMAT, BarcodeFormat.QR_CODE.toString());
  startActivity(intent);
}
 

@Override
public void onCreate(Bundle icicle) {
  super.onCreate(icicle);
  Intent intent = getIntent();
  if (intent == null) {
    finish();
  } else {
    String action = intent.getAction();
    if (Intents.Encode.ACTION.equals(action) || Intent.ACTION_SEND.equals(action)) {
      setContentView(R.layout.encode);
    } else {
      finish();
    }
  }
}