title: how to animate ItemDecorations in Android
body: <p>Is it possible to animate the ItemDecoration in a Recycler View as seen in <a href="https://youtu.be/imsr8NrIAMs?t=8m56s" rel="nofollow">https://youtu.be/imsr8NrIAMs?t=8m56s</a></p>
  
  <p>I have been trying to figure out a way to animate the ItemDecoration with focus change.</p>