flutter/examples/api/lib/material/icon_button/icon_button.2.dart
Sangam Shrestha d261411b4c
Remove redundant useMaterial3: true (#163376)
<!--
Thanks for filing a pull request!
Reviewers are typically assigned within a week of filing a request.
To learn more about code review, see our documentation on Tree Hygiene:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md
-->

This PR removes redundant useMaterial3: true as described in
https://github.com/flutter/flutter/issues/162818

*List which issues are fixed by this PR. You must list at least one
issue. An issue is not required if the PR fixes something trivial like a
typo.*

- https://github.com/flutter/flutter/issues/162818

## 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].
- [x] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [ ] 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

---------

Co-authored-by: Qun Cheng <36861262+QuncCccccc@users.noreply.github.com>
2025-03-14 17:50:20 +00:00

74 lines
1.9 KiB
Dart

// 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.
import 'package:flutter/material.dart';
/// Flutter code sample for [IconButton].
void main() {
runApp(const IconButtonApp());
}
class IconButtonApp extends StatelessWidget {
const IconButtonApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
theme: ThemeData(colorSchemeSeed: const Color(0xff6750a4)),
title: 'Icon Button Types',
home: const Scaffold(body: ButtonTypesExample()),
);
}
}
class ButtonTypesExample extends StatelessWidget {
const ButtonTypesExample({super.key});
@override
Widget build(BuildContext context) {
return const Padding(
padding: EdgeInsets.all(4.0),
child: Row(
children: <Widget>[
Spacer(),
ButtonTypesGroup(enabled: true),
ButtonTypesGroup(enabled: false),
Spacer(),
],
),
);
}
}
class ButtonTypesGroup extends StatelessWidget {
const ButtonTypesGroup({super.key, required this.enabled});
final bool enabled;
@override
Widget build(BuildContext context) {
final VoidCallback? onPressed = enabled ? () {} : null;
return Padding(
padding: const EdgeInsets.all(4.0),
child: Column(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
IconButton(icon: const Icon(Icons.filter_drama), onPressed: onPressed),
// Filled icon button
IconButton.filled(onPressed: onPressed, icon: const Icon(Icons.filter_drama)),
// Filled tonal icon button
IconButton.filledTonal(onPressed: onPressed, icon: const Icon(Icons.filter_drama)),
// Outlined icon button
IconButton.outlined(onPressed: onPressed, icon: const Icon(Icons.filter_drama)),
],
),
);
}
}