url_launcher打开外部应用

配置依赖

url_launcher: ^6.0.20

配置权限

/*与application同级*/
<queries>
            <!-- If your app opens https URLs -->
            <intent>
            <action android:name="android.intent.action.VIEW" />
            <data android:scheme="https" />
            </intent>
            <!-- If your app makes calls -->
            <intent>
            <action android:name="android.intent.action.DIAL" />
            <data android:scheme="tel" />
            </intent>
            <!-- If your sends SMS messages -->
            <intent>
            <action android:name="android.intent.action.SENDTO" />
            <data android:scheme="smsto" />
            </intent>
            <!-- If your app sends emails -->
            <intent>
            <action android:name="android.intent.action.SEND" />
            <data android:mimeType="*/*" />
            </intent>
        </queries>

使用

import 'package:flutter/material.dart';
import 'package:url_launcher/url_launcher.dart';
class UrlLauncherPage extends StatefulWidget {
    UrlLauncherPage({Key? key}) : super(key: key);
    @override
    State<UrlLauncherPage> createState() => _UrlLauncherPageState();
}
class _UrlLauncherPageState extends State<UrlLauncherPage> {
    @override
    Widget build(BuildContext context) {
        return Scaffold(
            appBar: AppBar(
                title: Text('打开外部应用'),
            ),
            body: Center(
                child: ListView(
                    children: [
                        //打开外部浏览器
                        ElevatedButton(
                            onPressed: () async {
                                //设置url
                                const url = "https://www.tobutomi.top";
                                if (await canLaunch(url)) {
                                    await launch(url);
                                } else {
                                    throw "Could not launch $url";
                                }
                            },
                            child: Text('打开外部浏览器')),
                        //拨打电话
                        ElevatedButton(
                            onPressed: () async {
                                //字符串以tel开头
                                const tel = "tel:557";
                                if (await canLaunch(tel)) {
                                    await launch(tel);
                                } else {
                                    throw "Could not launch $tel";
                                }
                            },
                            child: Text('拨打电话')),
                        //发送短信
                        ElevatedButton(
                            onPressed: () async {
                                //字符串以sms开头
                                const sms = "sms:557";
                                if (await canLaunch(sms)) {
                                    await launch(sms);
                                } else {
                                    throw "Could not launch $sms";
                                }
                            },
                            child: Text('发送短信')),
                        //打开外部应用
                        ElevatedButton(
                            onPressed: () async {
                                //应用码
                                const url = "weixin://";
                                if (await canLaunch(url)) {
                                    await launch(url);
                                } else {
                                    throw "Could not launch $url";
                                }
                            },
                            child: Text('打开外部应用')),
                    ],
                ),
            ),
        );
    }
}