flutter6.dart

class MyScaffold extends HookWidget {
  const MyScaffold({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    final count = useState(0);
    final theme = Theme.of(context);

    return Scaffold(
      appBar: AppBar(title: Text('Title')),
      body: Center(child: Text('Count: ${count.value}')),
      drawer: Drawer(
        child: ListView(
          padding: EdgeInsets.zero,
          children: [
            DrawerHeader(
              decoration: BoxDecoration(color: theme.primaryColor),
              child: Text(
                'Drawer Header',
                style: theme.primaryTextTheme.headline5,
              ),
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: () => count.value += 1,
        child: Icon(Icons.add),
      ),
    );
  }
}