title: How to show a Dialog on Android using the reveal effect from material design?
body: <p>I have an <code>Activity</code> with a <code>FloatingActionButton</code>. When I press the FAB, an <code>AlertDialog</code> is shown. I want to animate its appearance by using something like reveal effect or curved motion from <code>Android</code>'s <code>Material Design</code>. The <a href="http://developer.android.com/training/material/animations.html#Reveal" rel="nofollow">documentation</a> only has an example for changing visibility of existing views.</p>
  
  <p>How can I achieve that for an <code>AlertDialog</code>?</p>