mirror of
https://github.com/flutter/flutter.git
synced 2026-02-20 02:29:02 +08:00
1c0b3369cb
Fixes [When the on-screen keyboard is open, NavigationBar does not maintainBottomViewPadding in Edge-to-Edge mode](https://github.com/flutter/flutter/issues/159526) ### Description According to the [SafeArea.maintainBottomViewPadding](https://api.flutter.dev/flutter/widgets/SafeArea/maintainBottomViewPadding.html) docs, it is expected that `NavigationBar` will shift when the view padding changes. This PR provides ability to override the `maintainBottomViewPadding` property in the under `SafeArea` in the `NavigationBar`. ### Code Sample <details> <summary>expand to view the code sample</summary> ```dart import 'package:flutter/material.dart'; import 'package:flutter/services.dart'; void main() async { WidgetsFlutterBinding.ensureInitialized(); await SystemChrome.setEnabledSystemUIMode(SystemUiMode.edgeToEdge); runApp(const MyApp()); } class MyApp extends StatelessWidget { const MyApp({super.key}); @override Widget build(BuildContext context) { return MaterialApp( debugShowCheckedModeBanner: false, home: Scaffold( appBar: AppBar( title: const Text('Sample'), ), body: const Center( child: Padding( padding: EdgeInsets.all(16.0), child: TextField( decoration: InputDecoration(border: OutlineInputBorder()), ), ), ), bottomNavigationBar: NavigationBar( maintainBottomViewPadding: true, destinations: const <Widget>[ NavigationDestination(icon: Icon(Icons.favorite_rounded), label: 'Favorite'), NavigationDestination(icon: Icon(Icons.favorite_rounded), label: 'Favorite'), NavigationDestination(icon: Icon(Icons.favorite_rounded), label: 'Favorite') ]), floatingActionButton: FloatingActionButton( onPressed: () {}, child: const Icon(Icons.add), ), ), ); } } ``` </details> ### With `maintainBottomViewPadding: false` (Default) https://github.com/user-attachments/assets/1cea27d4-2d6d-4bca-bb9a-53c0a21fdb4d ### With `maintainBottomViewPadding: true` https://github.com/user-attachments/assets/b6c7487f-e23c-43db-a365-90bf69fa03dd ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [x] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [ ] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing. If you need help, consider asking for advice on the #hackers-new channel on [Discord]. <!-- Links --> [Contributor Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview [Tree Hygiene]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md [test-exempt]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests [Flutter Style Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md [Features we expect every widget to implement]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement [CLA]: https://cla.developers.google.com/ [flutter/tests]: https://github.com/flutter/tests [breaking change policy]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes [Discord]: https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md [Data Driven Fixes]: https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md