mirror of
https://github.com/flutter/flutter
synced 2024-10-13 19:52:53 +00:00
449f4a6673
* Update project.pbxproj files to say Flutter rather than Chromium Also, the templates now have an empty organization so that we don't cause people to give their apps a Flutter copyright. * Update the copyright notice checker to require a standard notice on all files * Update copyrights on Dart files. (This was a mechanical commit.) * Fix weird license headers on Dart files that deviate from our conventions; relicense Shrine. Some were already marked "The Flutter Authors", not clear why. Their dates have been normalized. Some were missing the blank line after the license. Some were randomly different in trivial ways for no apparent reason (e.g. missing the trailing period). * Clean up the copyrights in non-Dart files. (Manual edits.) Also, make sure templates don't have copyrights. * Fix some more ORGANIZATIONNAMEs
89 lines
2.2 KiB
Dart
89 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 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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void main() {
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runApp(FlutterView());
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}
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class FlutterView extends StatelessWidget {
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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title: 'Flutter View',
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theme: ThemeData(
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primarySwatch: Colors.grey,
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),
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home: MyHomePage(),
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);
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}
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}
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class MyHomePage extends StatefulWidget {
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@override
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_MyHomePageState createState() => _MyHomePageState();
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}
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class _MyHomePageState extends State<MyHomePage> {
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static const String _channel = 'increment';
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static const String _pong = 'pong';
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static const String _emptyMessage = '';
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static const BasicMessageChannel<String> platform =
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BasicMessageChannel<String>(_channel, StringCodec());
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int _counter = 0;
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@override
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void initState() {
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super.initState();
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platform.setMessageHandler(_handlePlatformIncrement);
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}
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Future<String> _handlePlatformIncrement(String message) async {
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setState(() {
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_counter++;
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});
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return _emptyMessage;
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}
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void _sendFlutterIncrement() {
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platform.send(_pong);
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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body: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: <Widget>[
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Expanded(
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child: Center(
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child: Text(
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'Platform button tapped $_counter time${ _counter == 1 ? '' : 's' }.',
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style: const TextStyle(fontSize: 17.0)),
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),
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),
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Container(
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padding: const EdgeInsets.only(bottom: 15.0, left: 5.0),
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child: Row(
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children: <Widget>[
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Image.asset('assets/flutter-mark-square-64.png', scale: 1.5),
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const Text('Flutter', style: TextStyle(fontSize: 30.0)),
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],
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),
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),
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],
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),
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floatingActionButton: FloatingActionButton(
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onPressed: _sendFlutterIncrement,
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child: const Icon(Icons.add),
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),
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);
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}
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}
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