Animate view sliding out of another view, pushing views below out of the way

Question

I have a list of buttons. When I press a button, a View should slide in a downwards motion out of the button, like this:

Start:

Answer 1

Use something like:

 Animation a = new ScaleAnimation(1, 1, 0, 1, Animation.RELATIVE_TO_SELF, (float) 0.5,    Animation.RELATIVE_TO_SELF, (float) 0);
 a.setFillAfter(true);
 view.setAnimation(a);
 a.setDuration(1000);
 view.startAnimation(a);