title: Is there an equivalent of "tools:layout=" for FragmentContainerView?
body: <p>In order to be able to see the content of a certain view inside a fragment when previewing a layout in Android Studio, it is possible to do <a href="https://developer.android.com/studio/write/tool-attributes#toolslayout" rel="noreferrer">this</a>:</p>
  
  <pre class="lang-xml prettyprint-override"><code>&lt;MainLayoutView xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:app="http://schemas.android.com/apk/res-auto"
      xmlns:tools="http://schemas.android.com/tools"&gt;
  
      &lt;fragment
          ...
          tools:layout="@layout/my_fragment_view"/&gt;
  
  &lt;/MainLayoutView&gt;
  </code></pre>
  
  <p>However, if you switch from <code>fragment</code> to <code>androidx.fragment.app.FragmentContainerView</code>, this handy tool stops working and the fragment just appears blank on the preview screen.</p>
  
  <p>Is there any way to show content inside a <code>FragmentContainerView</code> when previewing it in a layout in Android Studio?</p>