public CameraScannerMaskView(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
cameraLensView = new CameraLensView(context);
cameraLensView.init(context, attrs, defStyleAttr);
scannerBarView = new ScannerBarView(context);
scannerBarView.init(context, attrs, defStyleAttr);
addView(cameraLensView, new LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
addView(scannerBarView, new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
}