title: Disable drag down to close showModalBottomSheet
body: <p>How do I disable / escape drag down gesture within the Bottom Sheet Modal so the user can interact within the modal without accidentally closing the modal?</p>
  
  <p>Updated below with the actual modal bottom sheet.</p>
  
  <pre><code>return showModalBottomSheet(
      context: context,
      builder: (BuildContext context) {
          ...
      }
  }
  </code></pre>