我在我的项目中使用此依赖项 url_launcher: ^5.4.1 通过我的 flutter 应用程序启动 Whatsapp,但是当我按下按钮启动应用程序时,它不起作用,但在模拟器上显示无法打开链接的错误消息。 下面给出的是我用来启动 Whatsapp 的函数代码。
import 'package:flutter/material.dart';
import 'package:url_launcher/url_launcher.dart';
import 'dart:io';
void main() => runApp(Wapp());
class Wapp extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.orange,
),
home: MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
void launchWhatsApp(
{@required int phone,
@required String message,
}) async {
String url() {
if (Platform.isAndroid) {
return "whatsapp://wa.me/$phone:03452121308:/?text=${Uri.parse(message)}";
} else {
return "whatsapp://send? phone=$phone&text=${Uri.parse(message)}";
}
}
if (await canLaunch(url())) {
await launch(url());
} else {
throw 'Could not launch ${url()}';
}
}
Widget build(BuildContext context){
return Scaffold(
appBar: AppBar(
title: Text("Home"),
),
body: Center(
child: RaisedButton(
color: Colors.orange,
textColor: Colors.black,
padding: EdgeInsets.symmetric(vertical: 20.0, horizontal: 60.0),
highlightColor: Colors.green,
onPressed: () {
launchWhatsApp(phone: 03452121308, message: 'Hello');
},
child: Text("Place Your Order",style: TextStyle(
fontWeight: FontWeight.bold,
fontSize: 15
)
)
)
)
);
}
}
您的
https://
中缺少 url
。
将下面的代码替换为您的
url()
方法:
String url() {
if (Platform.isAndroid) {
// add the [https]
return "https://wa.me/$phone/?text=${Uri.parse(message)}"; // new line
} else {
// add the [https]
return "https://api.whatsapp.com/send?phone=$phone=${Uri.parse(message)}"; // new line
}
}
这对我有用,将此代码添加到
android/app/src/main/AndroidManifest.xml
下面的</Application>
标签:
<queries>
<!-- If your app opens https URLs -->
<intent>
<action android:name="android.intent.action.VIEW" />
<data android:scheme="https" />
</intent>
<!-- If your app makes calls -->
<intent>
<action android:name="android.intent.action.DIAL" />
<data android:scheme="tel" />
</intent>
<!-- If your sends SMS messages -->
<intent>
<action android:name="android.intent.action.SENDTO" />
<data android:scheme="smsto" />
</intent>
<!-- If your app sends emails -->
<intent>
<action android:name="android.intent.action.SEND" />
<data android:mimeType="*/*" />
</intent>
</queries>
我用来打开Whatsapp的方法:
void openWhatsapp(
{required BuildContext context,
required String text,
required String number}) async {
var whatsapp = number; //+92xx enter like this
var whatsappURlAndroid =
"whatsapp://send?phone=" + whatsapp + "&text=$text";
var whatsappURLIos = "https://wa.me/$whatsapp?text=${Uri.tryParse(text)}";
if (Platform.isIOS) {
// for iOS phone only
if (await canLaunchUrl(Uri.parse(whatsappURLIos))) {
await launchUrl(Uri.parse(
whatsappURLIos,
));
} else {
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(content: Text("Whatsapp not installed")));
}
} else {
// android , web
if (await canLaunchUrl(Uri.parse(whatsappURlAndroid))) {
await launchUrl(Uri.parse(whatsappURlAndroid));
} else {
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(content: Text("Whatsapp not installed")));
}
}
}
我找到了一个解决方案,将此代码添加到 android/app/src/main/AndroidManifest.xml
<queries>
<intent>
<action android:name="android.intent.action.VIEW" />
<data android:scheme="https" />
</intent>
<intent>
<action android:name="android.intent.action.DIAL" />
<data android:scheme="tel" />
</intent>
<intent>
<action android:name="android.intent.action.SEND" />
<data android:mimeType="*/*" />
</intent>
</queries>
String url() {
if (Platform.isIOS) {
return "whatsapp://wa.me/$phone/?text=${Uri.encodeFull(message)}";
} else {
return "whatsapp://send?phone=$phone&text=${Uri.encodeFull(message)}";
}
}
有两件事对我有帮助: 电话号码应该是纯号码。 国家代码应该是带有
+
符号的前缀。
喜欢
+14564564562
该插件工作正常,但您需要在 android 清单中添加权限,以便从 android 11 开始打开问题:https://github.com/flutter/flutter/issues/90099
我想要wattsap的特殊功能