| // Copyright 2013 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. |
| |
| // ignore_for_file: public_member_api_docs |
| |
| import 'dart:async'; |
| |
| import 'package:flutter/material.dart'; |
| import 'package:url_launcher/link.dart'; |
| import 'package:url_launcher/url_launcher.dart'; |
| |
| void main() { |
| runApp(const MyApp()); |
| } |
| |
| class MyApp extends StatelessWidget { |
| const MyApp({super.key}); |
| |
| @override |
| Widget build(BuildContext context) { |
| return MaterialApp( |
| title: 'URL Launcher', |
| theme: ThemeData( |
| primarySwatch: Colors.blue, |
| ), |
| home: const MyHomePage(title: 'URL Launcher'), |
| ); |
| } |
| } |
| |
| class MyHomePage extends StatefulWidget { |
| const MyHomePage({super.key, required this.title}); |
| final String title; |
| |
| @override |
| State<MyHomePage> createState() => _MyHomePageState(); |
| } |
| |
| class _MyHomePageState extends State<MyHomePage> { |
| bool _hasCallSupport = false; |
| Future<void>? _launched; |
| String _phone = ''; |
| |
| @override |
| void initState() { |
| super.initState(); |
| // Check for phone call support. |
| canLaunchUrl(Uri(scheme: 'tel', path: '123')).then((bool result) { |
| setState(() { |
| _hasCallSupport = result; |
| }); |
| }); |
| } |
| |
| Future<void> _launchInBrowser(Uri url) async { |
| if (!await launchUrl( |
| url, |
| mode: LaunchMode.externalApplication, |
| )) { |
| throw Exception('Could not launch $url'); |
| } |
| } |
| |
| Future<void> _launchInWebViewOrVC(Uri url) async { |
| if (!await launchUrl( |
| url, |
| mode: LaunchMode.inAppWebView, |
| webViewConfiguration: const WebViewConfiguration( |
| headers: <String, String>{'my_header_key': 'my_header_value'}), |
| )) { |
| throw Exception('Could not launch $url'); |
| } |
| } |
| |
| Future<void> _launchInWebViewWithoutJavaScript(Uri url) async { |
| if (!await launchUrl( |
| url, |
| mode: LaunchMode.inAppWebView, |
| webViewConfiguration: const WebViewConfiguration(enableJavaScript: false), |
| )) { |
| throw Exception('Could not launch $url'); |
| } |
| } |
| |
| Future<void> _launchInWebViewWithoutDomStorage(Uri url) async { |
| if (!await launchUrl( |
| url, |
| mode: LaunchMode.inAppWebView, |
| webViewConfiguration: const WebViewConfiguration(enableDomStorage: false), |
| )) { |
| throw Exception('Could not launch $url'); |
| } |
| } |
| |
| Future<void> _launchUniversalLinkIos(Uri url) async { |
| final bool nativeAppLaunchSucceeded = await launchUrl( |
| url, |
| mode: LaunchMode.externalNonBrowserApplication, |
| ); |
| if (!nativeAppLaunchSucceeded) { |
| await launchUrl( |
| url, |
| mode: LaunchMode.inAppWebView, |
| ); |
| } |
| } |
| |
| Widget _launchStatus(BuildContext context, AsyncSnapshot<void> snapshot) { |
| if (snapshot.hasError) { |
| return Text('Error: ${snapshot.error}'); |
| } else { |
| return const Text(''); |
| } |
| } |
| |
| Future<void> _makePhoneCall(String phoneNumber) async { |
| final Uri launchUri = Uri( |
| scheme: 'tel', |
| path: phoneNumber, |
| ); |
| await launchUrl(launchUri); |
| } |
| |
| @override |
| Widget build(BuildContext context) { |
| // onPressed calls using this URL are not gated on a 'canLaunch' check |
| // because the assumption is that every device can launch a web URL. |
| final Uri toLaunch = |
| Uri(scheme: 'https', host: 'www.cylog.org', path: 'headers/'); |
| return Scaffold( |
| appBar: AppBar( |
| title: Text(widget.title), |
| ), |
| body: ListView( |
| children: <Widget>[ |
| Column( |
| mainAxisAlignment: MainAxisAlignment.center, |
| children: <Widget>[ |
| Padding( |
| padding: const EdgeInsets.all(16.0), |
| child: TextField( |
| onChanged: (String text) => _phone = text, |
| decoration: const InputDecoration( |
| hintText: 'Input the phone number to launch')), |
| ), |
| ElevatedButton( |
| onPressed: _hasCallSupport |
| ? () => setState(() { |
| _launched = _makePhoneCall(_phone); |
| }) |
| : null, |
| child: _hasCallSupport |
| ? const Text('Make phone call') |
| : const Text('Calling not supported'), |
| ), |
| Padding( |
| padding: const EdgeInsets.all(16.0), |
| child: Text(toLaunch.toString()), |
| ), |
| ElevatedButton( |
| onPressed: () => setState(() { |
| _launched = _launchInBrowser(toLaunch); |
| }), |
| child: const Text('Launch in browser'), |
| ), |
| const Padding(padding: EdgeInsets.all(16.0)), |
| ElevatedButton( |
| onPressed: () => setState(() { |
| _launched = _launchInWebViewOrVC(toLaunch); |
| }), |
| child: const Text('Launch in app'), |
| ), |
| ElevatedButton( |
| onPressed: () => setState(() { |
| _launched = _launchInWebViewWithoutJavaScript(toLaunch); |
| }), |
| child: const Text('Launch in app (JavaScript OFF)'), |
| ), |
| ElevatedButton( |
| onPressed: () => setState(() { |
| _launched = _launchInWebViewWithoutDomStorage(toLaunch); |
| }), |
| child: const Text('Launch in app (DOM storage OFF)'), |
| ), |
| const Padding(padding: EdgeInsets.all(16.0)), |
| ElevatedButton( |
| onPressed: () => setState(() { |
| _launched = _launchUniversalLinkIos(toLaunch); |
| }), |
| child: const Text( |
| 'Launch a universal link in a native app, fallback to Safari.(Youtube)'), |
| ), |
| const Padding(padding: EdgeInsets.all(16.0)), |
| ElevatedButton( |
| onPressed: () => setState(() { |
| _launched = _launchInWebViewOrVC(toLaunch); |
| Timer(const Duration(seconds: 5), () { |
| closeInAppWebView(); |
| }); |
| }), |
| child: const Text('Launch in app + close after 5 seconds'), |
| ), |
| const Padding(padding: EdgeInsets.all(16.0)), |
| Link( |
| uri: Uri.parse( |
| 'https://pub.dev/documentation/url_launcher/latest/link/link-library.html'), |
| target: LinkTarget.blank, |
| builder: (BuildContext ctx, FollowLink? openLink) { |
| return TextButton.icon( |
| onPressed: openLink, |
| label: const Text('Link Widget documentation'), |
| icon: const Icon(Icons.read_more), |
| ); |
| }, |
| ), |
| const Padding(padding: EdgeInsets.all(16.0)), |
| FutureBuilder<void>(future: _launched, builder: _launchStatus), |
| ], |
| ), |
| ], |
| ), |
| ); |
| } |
| } |