Question

 I have a large image on the screen and I want to display a small image on that image where I touch the screen. but I do not know how to change the position of the image when I touch on the screen and the small image must display where ever I touch on screen.

any suggestions or hint will be appreciative.

thanks

Answer 1

Suppose you have your moving bitmap already in an ImageView which is part of your RelativeLayout.
Whenever the user touches the screen, you just have to change the position of the ImageView, by changing its margins.

You should try something like this:

         @Override
     public boolean onTouchEvent(MotionEvent event) {

            int action = event.getAction();         

            if (action == MotionEvent.ACTION_DOWN) 
            {    
            RelativeLayout.LayoutParams params = myImageView.getLayoutParams();
            params.setMargins(event.getX(),event.getY(), 0, 0);
            myImageView.setLayoutParams(params);
            }
        }