| // 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'; |
| import 'package:flutter/services.dart'; |
| |
| /// Flutter code sample for [SingleActivator.SingleActivator]. |
| |
| void main() => runApp(const SingleActivatorExampleApp()); |
| |
| class SingleActivatorExampleApp extends StatelessWidget { |
| const SingleActivatorExampleApp({super.key}); |
| |
| @override |
| Widget build(BuildContext context) { |
| return MaterialApp( |
| home: Scaffold( |
| appBar: AppBar(title: const Text('SingleActivator Sample')), |
| body: const Center( |
| child: SingleActivatorExample(), |
| ), |
| ), |
| ); |
| } |
| } |
| |
| class IncrementIntent extends Intent { |
| const IncrementIntent(); |
| } |
| |
| class SingleActivatorExample extends StatefulWidget { |
| const SingleActivatorExample({super.key}); |
| |
| @override |
| State<SingleActivatorExample> createState() => _SingleActivatorExampleState(); |
| } |
| |
| class _SingleActivatorExampleState extends State<SingleActivatorExample> { |
| int count = 0; |
| |
| @override |
| Widget build(BuildContext context) { |
| return Shortcuts( |
| shortcuts: const <ShortcutActivator, Intent>{ |
| SingleActivator(LogicalKeyboardKey.keyC, control: true): IncrementIntent(), |
| }, |
| child: Actions( |
| actions: <Type, Action<Intent>>{ |
| IncrementIntent: CallbackAction<IncrementIntent>( |
| onInvoke: (IncrementIntent intent) => setState(() { |
| count = count + 1; |
| }), |
| ), |
| }, |
| child: Focus( |
| autofocus: true, |
| child: Column( |
| children: <Widget>[ |
| const Text('Add to the counter by pressing Ctrl+C'), |
| Text('count: $count'), |
| ], |
| ), |
| ), |
| ), |
| ); |
| } |
| } |