title: Calling a Fragment method from a parent Activity
body: <p>I see in the <a href="http://developer.android.com/guide/topics/fundamentals/fragments.html" rel="noreferrer">Android Fragments Dev Guide</a> that an "activity can call methods in a fragment by acquiring a reference to the Fragment from FragmentManager, using <code>findFragmentById()</code> or <code>findFragmentByTag()</code>."</p>
  
  <p>The example that follows shows how to get a fragment reference, but not how to call specific methods in the fragment.</p>
  
  <p>Can anyone give an example of how to do this?  I would like to call a specific method in a Fragment from the parent Activity.  Thanks.</p>