title: How I can retrieve current fragment in NavHostFragment?
body: <p>I tried to find a method in the new Navigation components but I didn't find anything about that. </p>
  
  <p>I have the current destination with :</p>
  
  <pre><code>mainHostFragment.findNavController().currentDestination
  </code></pre>
  
  <p>But I can't get any reference to the displayed fragment.</p>