mirror of
https://github.com/flutter/flutter.git
synced 2025-06-03 00:51:18 +00:00
5491c8c146
This auto-formats all *.dart files in the repository outside of the `engine` subdirectory and enforces that these files stay formatted with a presubmit check. **Reviewers:** Please carefully review all the commits except for the one titled "formatted". The "formatted" commit was auto-generated by running `dev/tools/format.sh -a -f`. The other commits were hand-crafted to prepare the repo for the formatting change. I recommend reviewing the commits one-by-one via the "Commits" tab and avoiding Github's "Files changed" tab as it will likely slow down your browser because of the size of this PR. --------- Co-authored-by: Kate Lovett <katelovett@google.com> Co-authored-by: LongCatIsLooong <31859944+LongCatIsLooong@users.noreply.github.com>
58 lines
1.6 KiB
Dart
58 lines
1.6 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 [ScaffoldMessenger.of].
|
|
|
|
void main() => runApp(const OfExampleApp());
|
|
|
|
class OfExampleApp extends StatefulWidget {
|
|
const OfExampleApp({super.key});
|
|
|
|
@override
|
|
State<OfExampleApp> createState() => _OfExampleAppState();
|
|
}
|
|
|
|
class _OfExampleAppState extends State<OfExampleApp> {
|
|
final GlobalKey<ScaffoldMessengerState> _scaffoldMessengerKey =
|
|
GlobalKey<ScaffoldMessengerState>();
|
|
int _counter = 0;
|
|
|
|
void _incrementCounter() {
|
|
setState(() {
|
|
_counter++;
|
|
});
|
|
if (_counter % 10 == 0) {
|
|
_scaffoldMessengerKey.currentState!.showSnackBar(
|
|
const SnackBar(content: Text('A multiple of ten!')),
|
|
);
|
|
}
|
|
}
|
|
|
|
@override
|
|
Widget build(BuildContext context) {
|
|
return MaterialApp(
|
|
scaffoldMessengerKey: _scaffoldMessengerKey,
|
|
home: Scaffold(
|
|
appBar: AppBar(title: const Text('ScaffoldMessenger Demo')),
|
|
body: Center(
|
|
child: Column(
|
|
mainAxisAlignment: MainAxisAlignment.center,
|
|
children: <Widget>[
|
|
const Text('You have pushed the button this many times:'),
|
|
Text('$_counter', style: Theme.of(context).textTheme.headlineMedium),
|
|
],
|
|
),
|
|
),
|
|
floatingActionButton: FloatingActionButton(
|
|
onPressed: _incrementCounter,
|
|
tooltip: 'Increment',
|
|
child: const Icon(Icons.add),
|
|
),
|
|
),
|
|
);
|
|
}
|
|
}
|