m sheet, use the <a href="https://api.flutter.dev/flutter/material/Scaffold/bottomSheet.html">Scaffold.bottomSheet</a>.</p>
<p>Returns a controller that can be used to close and otherwise manipulate the
bottom sheet.</p>
<p>To rebuild the bottom sheet (e.g. if it is stateful), call
<a href="https://api.flutter.dev/flutter/material/ScaffoldFeatureController/setState.html">PersistentBottomSheetController.setState</a> on the controller returned by
this method.</p>
<p>The new bottom sheet becomes a <a href="htt