// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'package:flutter/material.dart';

/// Flutter code sample for [Drawer].

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

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(theme: ThemeData(useMaterial3: true), home: const DrawerExample());
  }
}

class DrawerExample extends StatefulWidget {
  const DrawerExample({super.key});

  @override
  State<DrawerExample> createState() => _DrawerExampleState();
}

class _DrawerExampleState extends State<DrawerExample> {
  String selectedPage = '';

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('Drawer Example')),
      drawer: Drawer(
        child: ListView(
          padding: EdgeInsets.zero,
          children: <Widget>[
            const DrawerHeader(
              decoration: BoxDecoration(color: Colors.blue),
              child: Text('Drawer Header', style: TextStyle(color: Colors.white, fontSize: 24)),
            ),
            ListTile(
              leading: const Icon(Icons.message),
              title: const Text('Messages'),
              onTap: () {
                setState(() {
                  selectedPage = 'Messages';
                });
              },
            ),
            ListTile(
              leading: const Icon(Icons.account_circle),
              title: const Text('Profile'),
              onTap: () {
                setState(() {
                  selectedPage = 'Profile';
                });
              },
            ),
            ListTile(
              leading: const Icon(Icons.settings),
              title: const Text('Settings'),
              onTap: () {
                setState(() {
                  selectedPage = 'Settings';
                });
              },
            ),
          ],
        ),
      ),
      body: Center(child: Text('Page: $selectedPage')),
    );
  }
}