private void initCamera() { SurfaceView cameraSurface = (SurfaceView) findViewById(R.id.surface_camera); cameraView_ = new CameraView(cameraSurface); cameraView_.setCameraReadyCallback(this); overlayView_ = (OverlayView) findViewById(R.id.surface_overlay); overlayView_.setOnTouchListener(this); overlayView_.setUpdateDoneCallback(this); }