title: findViewById in Android kotlin Fragment
body: <p>Normally one does</p>
  
  <pre><code>  findViewById&lt;TextView&gt;(R.id.text_view).text = "foo"
  </code></pre>
  
  <p>but this doesn't work in a fragment.</p>
  
  <p>This seems to work, but it seems rather cumbersome</p>
  
  <pre><code>  getView()?.findViewById&lt;TextView&gt;(R.id.text_view)?.text = "foo"
  </code></pre>
  
  <p>Is it right?</p>
  
  <p>What is one <em>supposed</em> to do in a <code>Fragment</code> (is it documented anywhere)?</p>