3天后，我发现这是解决此问题的最佳方法，但仍需要更多改进，因为sliver标头扩展和收缩太快，您可以改进代码，并与我们分享
import 'package:flutter/material.dart';void main() => runApp(MaterialApp( home: MyApp(),));class MyApp extends StatefulWidget { MyAppState createState() => MyAppState();}class MyAppState extends State<MyApp> with SingleTickerProviderStateMixin { TabController tabController; Widget _tabBarView; var scrollController = ScrollController(); @override void initState() { super.initState(); tabController = TabController( length: 2, vsync: this, ); _tabBarView = TabBarView(children: [ DemoTab(parentController : scrollController), DemoTab(parentController : scrollController), ]); } @override Widget build(BuildContext context) { return Scaffold( body: NestedScrollView( controller: scrollController, physics: ScrollPhysics(parent: PageScrollPhysics()), headerSliverBuilder: (BuildContext context, bool innerBoxIsScrolled) { return <Widget>[ SliverList( delegate: SliverChildListDelegate( [Container(height: 300, color: Colors.blue)]), ), ]; }, body: DefaultTabController( length: 2, child: Column( children: <Widget>[ Container( child: TabBar(labelColor: Colors.grey, tabs: [ Tab(text: 'One', ), Tab(text: 'two', ) ]), ), Expanded( child: Container(child: _tabBarView), ), ], ), )), ); }}class DemoTab extends StatefulWidget { DemoTab({ this.parentController }); final ScrollController parentController; DemoTabState createState() => DemoTabState();}class DemoTabState extends State<DemoTab> with AutomaticKeepAliveClientMixin<DemoTab> { @override // TODO: implement wantKeepAlive bool get wantKeepAlive => true; ScrollController _scrollController; ScrollPhysics ph; @override void initState() { super.initState(); _scrollController = ScrollController(); _scrollController.addListener((){ var innerPos = _scrollController.position.pixels; var maxOuterPos = widget.parentController.position.maxScrollExtent; var currentOutPos = widget.parentController.position.pixels; if(innerPos >= 0 && currentOutPos < maxOuterPos) { //print("parent pos " + currentOutPos.toString() + "max parent pos " + maxOuterPos.toString()); widget.parentController.position.jumpTo(innerPos+currentOutPos); }else{ var currenParentPos = innerPos + currentOutPos; widget.parentController.position.jumpTo(currenParentPos); } }); widget.parentController.addListener((){ var currentOutPos = widget.parentController.position.pixels; if(currentOutPos <= 0) { _scrollController.position.jumpTo(0); } }); } @override Widget build(BuildContext context) { return ListView.builder( key: UniqueKey(), controller: _scrollController, itemBuilder: (b, i) { return Container( height: 50, color: Colors.green, margin: EdgeInsets.only(bottom: 3), child: Text( i.toString(), ), ); }, itemCount: 30, ); }}
