并不能完全解决多Tab滚动联动问题

[CaiJingLong]

只有当完全滚动至第二个TabView后, 才能"解除"多Tab的滚动联动问题

具体可以看附件内录制的视频

Kapture 2020-07-10 at 18.53.08.mp4.zip

插件版本号 1.0.1

flutter: 1.17.3

代码:

```dart import 'package:flutter/material.dart' hide NestedScrollView; import 'package:extended_nested_scroll_view/extended_nested_scroll_view.dart'; void main() { runApp(MyApp()); } class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( title: 'Flutter Demo', theme: ThemeData( primarySwatch: Colors.blue, visualDensity: VisualDensity.adaptivePlatformDensity, ), home: MyHomePage(title: 'Flutter Demo Home Page'), ); } } class MyHomePage extends StatefulWidget { MyHomePage({Key key, this.title}) : super(key: key); final String title; @override _MyHomePageState createState() => _MyHomePageState(); } class _MyHomePageState extends State with SingleTickerProviderStateMixin { TabController tc; @override void initState() { super.initState(); tc = TabController(length: 4, vsync: this); tc.addListener(() { index = tc.index; }); } int index; @override void dispose() { tc.dispose(); super.dispose(); } @override Widget build(BuildContext context) { return DefaultTabController( length: 4, child: Scaffold( body: NestedScrollView( headerSliverBuilder: (BuildContext context, bool innerBoxIsScrolled) { return [ SliverAppBar( pinned: true, floating: true, forceElevated: innerBoxIsScrolled, expandedHeight: 210.0, flexibleSpace: FlexibleSpaceBar( title: Text('你好'), background: Container( child: Text('我是内容'), ), ), ), ]; }, innerScrollPositionKeyBuilder: () { return Key(index.toString()); }, body: TabBarView( controller: tc, children: [ _buildList(tc, 0), _buildList(tc, 1), _buildList(tc, 2), _buildList(tc, 3), ], ), ), ), ); } _buildList(TabController tc, int index) { return Content(index: index); } } class Content extends StatefulWidget { final int index; const Content({ Key key, this.index, }) : super(key: key); @override ContentState createState() => ContentState(); } class ContentState extends State with AutomaticKeepAliveClientMixin { Key key; @override void initState() { key = Key(widget.index.toString()); super.initState(); } @override Widget build(BuildContext context) { super.build(context); return NotificationListener( onNotification: (notification) { return true; }, child: NestedScrollViewInnerScrollPositionKeyWidget( key, ListView.builder( itemBuilder: (context, index) { return ListTile( title: Text(index.toString()), ); }, ), ), ); } @override bool get wantKeepAlive => true; } ```

[zmtzawqlp]

1.17.0 需要再研究

[zplblue]

所以有对后续的版本提供支持吗？

[clong1995]

同样遇到了这个问题