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2024年3月28日发(作者：)
flutter,SliverPersistentHeader实现Tab顶部吸附固定效果
直接上代码啦
import 'package:flutter/';
class StickyDemo extends StatefulWidget {
@override
_StickyDemoState createState() => _StickyDemoState();
}
class _StickyDemoState extends State
with SingleTickerProviderStateMixin {
TabController tabController;
@override
void initState() {
ate();
troller = TabController(length: 2, vsync: this);
}
@override
Widget build(BuildContext context) {
return Scaffold(
body: CustomScrollView(
slivers:
SliverAppBar(
pinned: true,
elevation: 0,
expandedHeight: 250,
flexibleSpace: FlexibleSpaceBar(
title: Text('Sliver-sticky效果'),
background: k(
'/',
fit: ,
),
),
),
SliverPersistentHeader(
pinned: true,
delegate: StickyTabBarDelegate(
child: TabBar(
labelColor: ,
controller: troller,
tabs:
Tab(text: 'Home'),
Tab(text: 'Profile'),
],
),
),
),
SliverFillRemaining(
child: TabBarView(
controller: troller,
children:
Center(child: Text('Content of Home')),
Center(child: Text('Content of Profile')),
],
),
),
],
),
);
}
}
class StickyTabBarDelegate extends SliverPersistentHeaderDelegate {
final TabBar child;
StickyTabBarDelegate({@required });
@override
Widget build(BuildContext context, double shrinkOffset, bool overlapsContent) {
return ;
}
@override
double get maxExtent => ;
@override
double get minExtent => ;
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