tab controller
class MyTabbedPage extends StatefulWidget {
const MyTabbedPage({ Key? key }) : super(key: key);
@override
_MyTabbedPageState createState() => _MyTabbedPageState();
}
class _MyTabbedPageState extends State<MyTabbedPage> with SingleTickerProviderStateMixin {
static const List<Tab> myTabs = <Tab>[
Tab(text: 'LEFT'),
Tab(text: 'RIGHT'),
];
late TabController _tabController;
@override
void initState() {
super.initState();
_tabController = TabController(vsync: this, length: myTabs.length);
}
@override
void dispose() {
_tabController.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
bottom: TabBar(
controller: _tabController,
tabs: myTabs,
),
),
body: TabBarView(
controller: _tabController,
children: myTabs.map((Tab tab) {
final String label = tab.text!.toLowerCase();
return Center(
child: Text(
'This is the $label tab',
style: const TextStyle(fontSize: 36),
),
);
}).toList(),
),
);
}
}