| // Copyright 2016 The Chromium 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/cupertino.dart'; |
| import 'package:flutter/material.dart'; |
| |
| class CupertinoDialogDemo extends StatefulWidget { |
| static const String routeName = '/cupertino/dialog'; |
| |
| @override |
| _CupertinoDialogDemoState createState() => new _CupertinoDialogDemoState(); |
| } |
| |
| class _CupertinoDialogDemoState extends State<CupertinoDialogDemo> { |
| final GlobalKey<ScaffoldState> _scaffoldKey = new GlobalKey<ScaffoldState>(); |
| |
| void showDemoDialog<T>({ BuildContext context, Widget child }) { |
| showDialog<T>( |
| context: context, |
| barrierDismissible: false, |
| builder: (BuildContext context) => child, |
| ) |
| .then<void>((T value) { // The value passed to Navigator.pop() or null. |
| if (value != null) { |
| _scaffoldKey.currentState.showSnackBar(new SnackBar( |
| content: new Text('You selected: $value') |
| )); |
| } |
| }); |
| } |
| |
| @override |
| Widget build(BuildContext context) { |
| return new Scaffold( |
| key: _scaffoldKey, |
| appBar: new AppBar( |
| title: const Text('Cupertino Dialogs'), |
| ), |
| body: new ListView( |
| padding: const EdgeInsets.symmetric(vertical: 24.0, horizontal: 72.0), |
| children: <Widget> [ |
| new CupertinoButton( |
| child: const Text('Alert'), |
| color: CupertinoColors.activeBlue, |
| onPressed: () { |
| showDemoDialog<String>( |
| context: context, |
| child: new CupertinoAlertDialog( |
| content: const Text('Discard draft?'), |
| actions: <Widget>[ |
| new CupertinoDialogAction( |
| child: const Text('Discard'), |
| isDestructiveAction: true, |
| onPressed: () { Navigator.pop(context, 'Discard'); } |
| ), |
| new CupertinoDialogAction( |
| child: const Text('Cancel'), |
| isDefaultAction: true, |
| onPressed: () { Navigator.pop(context, 'Cancel'); } |
| ), |
| ] |
| ), |
| ); |
| }, |
| ), |
| const Padding(padding: const EdgeInsets.all(8.0)), |
| new CupertinoButton( |
| child: const Text('Alert with Title'), |
| color: CupertinoColors.activeBlue, |
| padding: const EdgeInsets.symmetric(vertical: 16.0, horizontal: 36.0), |
| onPressed: () { |
| showDemoDialog<String>( |
| context: context, |
| child: new CupertinoAlertDialog( |
| title: const Text('Allow "Maps" to access your location while you use the app?'), |
| content: const Text( |
| 'Your current location will be displayed on the map and used for directions, ' |
| 'nearby search results, and estimated travel times.' |
| ), |
| actions: <Widget>[ |
| new CupertinoDialogAction( |
| child: const Text('Don\'t Allow'), |
| onPressed: () { Navigator.pop(context, 'Disallow'); } |
| ), |
| new CupertinoDialogAction( |
| child: const Text('Allow'), |
| onPressed: () { Navigator.pop(context, 'Allow'); } |
| ), |
| ] |
| ), |
| ); |
| }, |
| ), |
| ], |
| ), |
| ); |
| } |
| } |