title: Animation.setFillAfter/Before - Do they work/What are they for?
body: <p>As in the title of my question what are the methods <code>setFillBefore()</code> and <code>setFillAfter()</code> supposed to do? </p>
  
  <p>I was hoping <code>setFillAfter()</code> would make the change to the View permanent after an animation has completed, but this is incorrect?</p>