直播网站源码，写一个android底部导航栏框架

直播网站源码，写一个android底部导航栏框架

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import 'package:flutter/material.dart';<br> <br>void main() {<br>  runApp(MyApp());<br>}<br> <br>class MyApp extends StatelessWidget {<br>  @override<br>  Widget build(BuildContext context) {<br>    return MaterialApp(<br>      title: 'Bottom Navigation Bar',<br>      theme: ThemeData(<br>        primaryColor: Colors.blue,<br>      ),<br>      home: MyHomePage(),<br>    );<br>  }<br>}<br> <br>class MyHomePage extends StatefulWidget {<br>  @override<br>  _MyHomePageState createState() => _MyHomePageState();<br>}<br> <br>class _MyHomePageState extends State<MyHomePage> {<br>  int _currentIndex = 0;<br> <br>  final List<Widget> _pages = [<br>    HomePage(),<br>    SearchPage(),<br>    ProfilePage(),<br>  ];<br> <br>  @override<br>  Widget build(BuildContext context) {<br>    return Scaffold(<br>      appBar: AppBar(<br>        title: Text('Bottom Navigation Bar'),<br>      ),<br>      body: _pages[_currentIndex],<br>      bottomNavigationBar: BottomNavigationBar(<br>        currentIndex: _currentIndex,<br>        onTap: (index) {<br>          setState(() {<br>            _currentIndex = index;<br>          });<br>        },<br>        items: [<br>          BottomNavigationBarItem(<br>            icon: Icon(Icons.home),<br>            label: 'Home',<br>          ),<br>          BottomNavigationBarItem(<br>            icon: Icon(Icons.search),<br>            label: 'Search',<br>          ),<br>          BottomNavigationBarItem(<br>            icon: Icon(Icons.person),<br>            label: 'Profile',<br>          ),<br>        ],<br>      ),<br>    );<br>  }<br>}<br> <br>class HomePage extends StatelessWidget {<br>  @override<br>  Widget build(BuildContext context) {<br>    return Center(<br>      child: Text('Home Page'),<br>    );<br>  }<br>}<br> <br>class SearchPage extends StatelessWidget {<br>  @override<br>  Widget build(BuildContext context) {<br>    return Center(<br>      child: Text('Search Page'),<br>    );<br>  }<br>}<br> <br>class ProfilePage extends StatelessWidget {<br>  @override<br>  Widget build(BuildContext context) {<br>    return Center(<br>      child: Text('Profile Page'),<br>    );<br>  }<br>}

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