How to make bitmap invisible ontouch in android? [closed]

Do this :

    @Override
    public boolean onTouch(final View view, MotionEvent event) {

              final int action = event.getAction();

                     int x = event.getX()  // or getRawX();
                     int y = event.getY();

                    switch(action){
                          case MotionEvent.ACTION_DOWN:

                   if (x >= xOfYourBitmap && x < (xOfYourBitmap +yourBitmap.getWidth())
                       && y >= yOfYourBitmap && y < (yOfYourBitmap + yourBitmap.getHeight())) {
        //You've pressed on your bitmap
    }
    break;
}
     }