final ctrl = useScrollController();
@override
Widget build(BuildContext context, WidgetRef ref) {
// final ctrl = ref.watch(_scrollController);
======== Exception caught by widgets library =======================================================
The following assertion was thrown building Builder(dirty):
Hooks can only be called from the build method of a widget that mix-in `Hooks`.
Hooks should only be called within the build method of a widget.
Calling them outside of build method leads to an unstable state and is therefore prohibited.
'package:flutter_hooks/src/framework.dart':
Failed assertion: line 133 pos 12: 'HookElement._currentHookElement != null'
