java - 通过 Intent 打开whatsapp在Android 11中不起作用

Question

有意打开 Whatsapp 无法在 android OS 11 中运行，但在 android (OS) 10 设备上运行良好，它会在 android 11 设备上显示消息“Whatsapp app not installed in your phone”。有人对此有解决方案吗？

String contact = "+91 9999999999"; // use country code with your phone number
        String url = "https://api.whatsapp.com/send?phone=" + contact;
        try {
            PackageManager pm = context.getPackageManager();
            pm.getPackageInfo("com.whatsapp", PackageManager.GET_ACTIVITIES);
            Intent i = new Intent(Intent.ACTION_VIEW);
            i.setData(Uri.parse(url));
            context.startActivity(i);
        } catch (PackageManager.NameNotFoundException e) {
          Toast.makeText(mContext, "Whatsapp app not installed in your phone",Toast.LENGTH_LONG).show();
           e.printStackTrace();
        }

Answer 1

package visibility的android 11有新变化.
您需要添加一个新部分 queries在你的应用程序下<manifest>带有所需包名称的标签:

<manifest package="com.example.app">
    <queries>
        <package android:name="com.whatsapp" />
    </queries>
  ...
</manifest>