Kamera - kontinuierliches Scannen

public class MyCamera extends Activity {
	private Camera _camera;
	private String TAG = "MyCamera";
	
	
	@Override
	public void onCreate(Bundle savedInstanceState) {
		Log.d(TAG, "onCreate()");
		
    	super.onCreate(savedInstanceState);
    	getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
    	requestWindowFeature(Window.FEATURE_NO_TITLE);
    	setContentView(new CameraPreview(this));
	}
	
	private Camera.PreviewCallback mPreviewListener = new Camera.PreviewCallback() {
		@Override
		public void onPreviewFrame(byte[] data, Camera camera) {
			Log.d(TAG, "onPreviewFrame()");
         	//Speichern
   	}
	};
	
	@Override
	public boolean onTouchEvent(MotionEvent event) {
		Log.d(TAG, "onTouchEvent()");
		
		if (event.getAction() == MotionEvent.ACTION_DOWN) {
         	//Schleife?
			_camera.setOneShotPreviewCallback(mPreviewListener);
		}
		
		return super.onTouchEvent(event);
	}
	
	public void setCameraDisplayOrientation(android.hardware.Camera camera, int cameraId) {
	}
	
	public class CameraPreview extends SurfaceView implements SurfaceHolder.Callback {
    	private SurfaceHolder holder;
 	
    	CameraPreview(Context context) {
        	super(context);
        	holder = getHolder();
        	holder.addCallback(this);
        	holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
    	}
 	
    	public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
			configure( format,  width, height) ;
    	}
    	
    	public void surfaceDestroyed(SurfaceHolder holder) {


    	}


		public void surfaceCreated(SurfaceHolder holder) {
		}


		protected void setPictureFormat(int format) {
		}
		
		protected void setPreviewSize(int width, int height) {
		}
		
		public void configure(int format, int width, int height) {
		}
	}	
}