title: Android animating an animation-list
body: <p>My question, is it possible to animate an item in an animation-list.  Specifically, say you have:</p>
  
  <pre><code>&lt;animation-list xmlns:android="http://schemas.android.com/apk/res/android" android:oneshot="true"&gt;  
     &lt;item android:drawable="@drawable/rocket_thrust1" android:duration="200" /&gt;
     &lt;item android:drawable="@drawable/rocket_thrust2" android:duration="200" /&gt;
     &lt;item android:drawable="@drawable/rocket_thrust3" android:duration="200" /&gt;
  &lt;/animation-list&gt;
  </code></pre>
  
  <p>I want to fade the alpha of each <code>&lt;item&gt;</code> rather than simply jump from one image to the next, is it possible?</p>