title: Repeat pulse Animation
body: <p>I'm trying to create a Infinite pulsing effect in a ImageView.
  But how is it possible to keep the offset?</p>
  
  <pre><code>&lt;set xmlns:android="http://schemas.android.com/apk/res/android"
  android:shareInterpolator="false"&gt;
  &lt;scale
      android:duration="700"
      android:fromXScale="1"
      android:fromYScale="1"
      android:pivotX="50%"
      android:pivotY="50%"
      android:toXScale="0.5"
      android:toYScale="0.5"/&gt;
  &lt;scale
      android:duration="700"
      android:fromXScale="1"
      android:fromYScale="1"
      android:pivotX="50%"
      android:pivotY="50%"
      android:startOffset="700"
      android:toXScale="2"
      android:toYScale="2"/&gt;
  &lt;/set&gt;
  </code></pre>