import 'package:flutter/material.dart';


void main() => runApp(const MyApp());

class MyApp extends StatelessWidget {
const MyApp({super.key});

static const appTitle = 'Drawer Demo';

@override
Widget build(BuildContext context) {
return const MaterialApp(
title: appTitle,
home: MyHomePage(title: appTitle),
);
}
}

class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});

final String title;

@override
State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
int _selectedIndex = 0;
static const TextStyle optionStyle =
TextStyle(fontSize: 30, fontWeight: FontWeight.bold);
static const List<Widget> _widgetOptions = <Widget>[
Text(
'Index 0: Home',
style: optionStyle,
),
Text(
'Index 1: Business',
style: optionStyle,
),
Text(
'Index 2: School',
style: optionStyle,
),
];

void _onItemTapped(int index) {
setState(() {
_selectedIndex = index;
});
}

@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: Text(widget.title)),
body: Center(
child: _widgetOptions[_selectedIndex],
),
drawer: Drawer(
// Add a ListView to the drawer. This ensures the user can scroll
// through the options in the drawer if there isn't enough vertical
// space to fit everything.
child: ListView(
// Important: Remove any padding from the ListView.
padding: EdgeInsets.zero,
children: [
const DrawerHeader(
decoration: BoxDecoration(
color: Colors.blue,
),
child: Text('Drawer Header'),
),
ListTile(
title: const Text('Home'),
selected: _selectedIndex == 0,
onTap: () {
// Update the state of the app
_onItemTapped(0);
// Then close the drawer
Navigator.pop(context);
},
),
ListTile(
title: const Text('Business'),
selected: _selectedIndex == 1,
onTap: () {
// Update the state of the app
_onItemTapped(1);
// Then close the drawer
Navigator.pop(context);
},
),
ListTile(
title: const Text('School'),
selected: _selectedIndex == 2,
onTap: () {
// Update the state of the app
_onItemTapped(2);
// Then close the drawer
Navigator.pop(context);
},
),
],
),
),
);
}
}