1
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: DashPage(),
);
}
}
class DashPage extends StatefulWidget {
@override
_DashPageState createState() => _DashPageState();
}
class _DashPageState extends State<DashPage> {
@override
Widget build(BuildContext context) {
return DefaultTabController(
length: 4,
child: Scaffold(
bottomNavigationBar: TabBar(
tabs: <Widget>[
Tab(icon: Icon(Icons.home), text: "Home"),
Tab(icon: Icon(Icons.search), text: "Search"),
Tab(icon: Icon(Icons.file_download), text: "Download"),
Tab(icon: Icon(Icons.list), text: "More"),
],
unselectedLabelColor: Colors.grey, // 未选中时的颜色
labelColor: Colors.blue, // 选中时的颜色
),
body: TabBarView(
children: <Widget>[
Center(child: Text('Home Page')),
Center(child: Text('Search Page')),
Center(child: Text('Download Page')),
Center(child: Text('More Page')),
],
),
),
);
}
}
2
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: DashPage(),
);
}
}
class DashPage extends StatefulWidget {
@override
_DashPageState createState() => _DashPageState();
}
class _DashPageState extends State<DashPage> {
int _currentIndex = 0;
final PageController _controller = PageController();
@override
Widget build(BuildContext context) {
return Scaffold(
bottomNavigationBar: BottomNavigationBar(
type: BottomNavigationBarType.fixed,
currentIndex: _currentIndex,
fixedColor: Colors.purple,
onTap: (int index) {
setState(() {
_currentIndex = index;
_controller.jumpToPage(index);
});
},
items: <BottomNavigationBarItem>[
BottomNavigationBarItem(
icon: Icon(Icons.home),
activeIcon: Icon(Icons.home),
title: Text("Home")),
BottomNavigationBarItem(
icon: Icon(Icons.search),
activeIcon: Icon(Icons.search),
title: Text("Search")),
BottomNavigationBarItem(
icon: Icon(Icons.file_download),
activeIcon: Icon(Icons.file_download),
title: Text("Search")),
BottomNavigationBarItem(
icon: Icon(Icons.list),
activeIcon: Icon(Icons.list),
title: Text("More")),
],
),
body: PageView(
controller: _controller,
onPageChanged: (int index) {
setState(() {
_currentIndex = index;
});
},
children: <Widget>[
Center(child: Text('Home Page')),
Center(child: Text('Search Page')),
Center(child: Text('Download Page')),
Center(child: Text('More Page')),
],
),
);
}
}
原文地址:https://www.cnblogs.com/ajanuw/p/10884864.html
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