Hide camera preview but still receive preview callbacks

Question

I want to show filtered camera preview in my application.

I\'m using Camera.setPreviewCallback() for this. I managed to process callback data and show filtered image

Answer 1

Create a simple View with a black background color. Position the view at the same position as the camera's SurfaceView. The camera's preview will be effectively hidden.

Answer 2

A solution is to even though set the Preview Size to be as the actual screen, in the onMeasure of the Preview SurfaceView make it smaller, that works for me:

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
{  
   this.setMeasuredDimension(2, 2);  
}