title: How to configure explode fragment transition in order for view to move along the vertical axis only
body: <p>I am trying to animate a transition between 2 fragments in my activity using an Explode animation. What I am trying to achieve is to explode everything away from a View which is located somewhere in the middle and matches the screen from left to right (it is a list row).</p>
  
  <p>I would like to restrict the movement to Y-axis only. Views should only move vertically. Views which are above the epicenter view go up, views which are below should go down.</p>
  
  <p>At the moment all views seem to move away from a point in all directions.</p>
  
  <p>How can I achieve vertical movement only?</p>
  
  <p>My transition:</p>
  
  <pre><code>        Explode explode = new Explode();
          explode.setEpicenterCallback(edited.holder().epicenter());
          listFragment.setExitTransition(explode);
  </code></pre>
  
  <p>Epicenter callback (holder().epicenter()):</p>
  
  <pre><code>return Rect(rowView.left, rowView.top, rowView.right, rowView.bottom)
  </code></pre>
  
  <p>I have also tried this to no effect</p>
  
  <pre><code>return Rect(rowView.left - 2000000000, rowView.top, rowView.right + 2000000000, rowView.bottom)
  </code></pre>