android java

hi all, just a quick one please, been going around in circles a bit here, and am now at the stage whereby i cannot seed the wood for the trees!

need code to display full-screen image, user the makes a few sketches on the image and saves the up-date image with sketches.

part-code as follows:

@Override
      public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);

            this.paintView = (PaintView) findViewById(R.id.image);
            requestWindowFeature(Window.FEATURE_LEFT_ICON);
            setContentView(this.paintView.setBackgroundResource(R.drawable.horse_logo));
            Object imageView;
            ((Object) imageView).setImageResource(R.drawable.horse_logo);
            this.paintView.togglePencil(true);
      } // end method onCreate

thanks in advance to all & sundry.