@Override
public void onCreate(Bundle state) {
    super.onCreate(state);
    setContentView(R.layout.activity_qrscanner);
    final ViewGroup contentFrame = findViewById(R.id.content_frame);
    scannerView = new ZXingScannerView(this) {
        @Override
        protected IViewFinder createViewFinderView(Context context) {
            return new SquareViewFinderView(context);
        }
    };
    contentFrame.addView(scannerView);
    scannerView.setFormats(Collections.singletonList(BarcodeFormat.QR_CODE));
}
 

@Override
public void onCreate(Bundle state) {
    super.onCreate(state);
    setContentView(R.layout.activity_scan);
    setupToolbar();

    ViewGroup contentFrame = findViewById(R.id.scan_content_frame);
    mScannerView = new ZXingScannerView(this) {
        @Override
        protected IViewFinder createViewFinderView(Context context) {
            return new KaliumViewFinderView(context);
        }
    };
    mScannerView.setAutoFocus(true);
    contentFrame.addView(mScannerView);

    // get title
    String title = getIntent().getStringExtra(EXTRA_TITLE);
    if (title != null) {
        mInstructionsText = findViewById(R.id.scan_instruction_label);
        if (mInstructionsText != null) {
            mInstructionsText.setText(title);
        }
    }

    // get if seed mode
    seedMode = getIntent().getBooleanExtra(EXTRA_SEED_MODE, false);

    mHandler = new Handler();
    mRunnable = () -> {
        if (mInstructionsText != null) {
            mInstructionsText.setText(title);
        }
    };
}
 

@Override
public void onCreate(Bundle state) {
    super.onCreate(state);
    setContentView(R.layout.activity_scan);
    setupToolbar();

    ViewGroup contentFrame = findViewById(R.id.scan_content_frame);
    mScannerView = new ZXingScannerView(this) {
        @Override
        protected IViewFinder createViewFinderView(Context context) {
            return new NanoViewFinderView(context);
        }
    };
    contentFrame.addView(mScannerView);

    // get title
    String title = getIntent().getStringExtra(EXTRA_TITLE);
    if (title != null) {
        TextView instructions = findViewById(R.id.scan_instruction_label);
        if (instructions != null) {
            instructions.setText(title);
        }
    }
    
    // get seed only scan setting
    isSeedOnlyScan = getIntent().getBooleanExtra(EXTRA_IS_SEED, false);
}
 

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

    _entries = new ArrayList<>();
    _scannerView = new ZXingScannerView(this) {
        @Override
        protected IViewFinder createViewFinderView(Context context) {
            return new SquareFinderView(context);
        }
    };
    _scannerView.setResultHandler(this);
    _scannerView.setFormats(Collections.singletonList(BarcodeFormat.QR_CODE));

    int camera = getRearCameraId();
    if (camera == -1) {
        camera = getFrontCameraId();
        if (camera == -1) {
            Toast.makeText(this, getString(R.string.no_cameras_available), Toast.LENGTH_LONG).show();
            finish();
        }
        _facing = CAMERA_FACING_FRONT;
    }
    _scannerView.startCamera(camera);

    setContentView(_scannerView);
}
 

@Override
protected IViewFinder createViewFinderView(Context context) {

    if (mDrawLaser) {
        Log.w("camera", "drawLaser set to true");
        mViewFinderView = new ViewFinderView(context);
    }
    else {
        Log.w("camera", "drawLaser set to false");
        mViewFinderView = new CustomViewFinderView(context);
    }
    return mViewFinderView;
}
 

@Override
protected IViewFinder createViewFinderView(Context context) {
	return new LatteViewFinderView(context);

}
 

protected IViewFinder createViewFinderView(Context context) {
    return new ViewFinderView(context);
}