public class TestCameraOverlay extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        Preview mPreview = new Preview(this);
        DrawOnTop mDraw = new DrawOnTop(this);
        setContentView(mPreview);
        addContentView(mDraw, new LayoutParams
(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
    }
}