我想改变选中的标签页的背景,我打算使用自定义标签页,所以我无法使用指示器改变选中标签页的背景。BoxDecoration
我想实现这样的tabbar。
请指导我实现tabbars像设计中一样。我刚刚开始学习flutter。
这是你要找的吗?
class TabBarExample extends StatefulWidget {
@override
_TabBarExampleState createState() => _TabBarExampleState();
}
class _TabBarExampleState extends State<TabBarExample>
with SingleTickerProviderStateMixin {
// Define a tab controller object
TabController _tabController;
@override
void initState() {
_tabController = TabController(length: 3, vsync: this);
super.initState();
}
@override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: Container(
color: Colors.grey[300],
child: TabBar(
controller: _tabController,
indicatorColor: Colors.transparent,
labelColor: Colors.pink,
unselectedLabelColor: Colors.grey,
labelStyle: TextStyle(
fontSize: 16,
),
unselectedLabelStyle: TextStyle(
fontSize: 16,
),
indicator: BoxDecoration(
color: Colors.white,
),
tabs: <Widget>[
Tab(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text('STEP 1'),
Text(
'Investment',
style: TextStyle(
fontSize: 12,
),
),
],
),
),
Tab(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text('STEP 2'),
Text(
'Investment',
style: TextStyle(fontSize: 12),
),
],
),
),
Tab(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text('STEP 3'),
Text(
'Investment',
style: TextStyle(fontSize: 12),
),
],
),
),
],
),
),
),
);
}
}
OUTPUT: