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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>
74 lines
2.2 KiB
Dart
74 lines
2.2 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/material.dart';
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import '../utils.dart';
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import 'use_cases.dart';
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class TextButtonUseCase extends UseCase {
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@override
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String get name => 'TextButton';
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@override
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String get route => '/text-button';
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@override
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Widget build(BuildContext context) => const MainWidget();
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}
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class MainWidget extends StatefulWidget {
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const MainWidget({super.key});
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@override
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State<MainWidget> createState() => MainWidgetState();
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}
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class MainWidgetState extends State<MainWidget> {
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String pageTitle = getUseCaseName(TextButtonUseCase());
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final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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backgroundColor: Theme.of(context).colorScheme.inversePrimary,
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title: Semantics(headingLevel: 1, child: Text('$pageTitle Demo')),
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),
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body: Form(
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key: _formKey,
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: <Widget>[
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TextFormField(
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// The validator receives the text that the user has entered.
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validator: (String? value) {
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if (value == null || value.isEmpty) {
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return 'Please enter some text';
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}
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return null;
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},
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),
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Padding(
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padding: const EdgeInsets.symmetric(vertical: 16),
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child: ElevatedButton(
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onPressed: () {
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// Validate returns true if the form is valid, or false otherwise.
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if (_formKey.currentState!.validate()) {
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// If the form is valid, display a snackbar. In the real world,
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// this might also send a request to a server.
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ScaffoldMessenger.of(
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context,
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).showSnackBar(const SnackBar(content: Text('Form submitted')));
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}
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},
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child: const Text('Submit'),
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),
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),
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],
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),
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),
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);
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}
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}
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