| // Copyright 2014 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Flutter code sample for [NestedScrollViewState]. |
| |
| import 'package:flutter/material.dart'; |
| |
| void main() => runApp(const MyApp()); |
| |
| class MyApp extends StatelessWidget { |
| const MyApp({super.key}); |
| |
| static const String _title = 'Flutter Code Sample'; |
| |
| @override |
| Widget build(BuildContext context) { |
| return const MaterialApp( |
| title: _title, |
| home: MyStatelessWidget(), |
| ); |
| } |
| } |
| |
| final GlobalKey<NestedScrollViewState> globalKey = GlobalKey(); |
| |
| class MyStatelessWidget extends StatelessWidget { |
| const MyStatelessWidget({super.key}); |
| |
| @override |
| @override |
| Widget build(BuildContext context) { |
| return NestedScrollView( |
| key: globalKey, |
| headerSliverBuilder: (BuildContext context, bool innerBoxIsScrolled) { |
| return const <Widget>[ |
| SliverAppBar( |
| title: Text('NestedScrollViewState Demo!'), |
| ), |
| ]; |
| }, |
| body: const CustomScrollView( |
| // Body slivers go here! |
| ), |
| ); |
| } |
| |
| ScrollController get innerController { |
| return globalKey.currentState!.innerController; |
| } |
| } |