title: Start motion scene programmatically
body: <p>I have a motion layout with this layoutDescription: <code>app:layoutDescription="@xml/scene"</code></p>
  
  <p><strong>scene.xml</strong></p>
  
  <pre><code>&lt;MotionScene
      xmlns:motion="http://schemas.android.com/apk/res-auto"&gt;
  
      &lt;Transition
          motion:constraintSetStart="@layout/view_home_card_start"
          motion:constraintSetEnd="@layout/view_home_card_end"
          motion:duration="1000"&gt;
          &lt;OnSwipe
              motion:touchAnchorId="@+id/button"
              motion:touchAnchorSide="left"
              motion:dragDirection="dragLeft" /&gt;
      &lt;/Transition&gt;
  
  &lt;/MotionScene&gt;
  </code></pre>
  
  <p>I think that the xml of <code>view_home_card_start</code> and <code>view_home_card_end</code> is irrelevant.</p>
  
  <p>How can  I call this animation programatically?</p>