如何在Fflt中使用FCM将url（数据）或消息传递给应用程序？

Question

如何通过URL引发FCM，我已经实现了FCM并收到了通知，但无法传递数据，如何实现呢？

  

使用FCM从Firebase到应用程序的URL作为数据消息

FirebaseMessaging _firebaseMessaging = FirebaseMessaging();
@override
void initState() {
 super.initState();
 firebaseCloudMessaging_Listeners();
}

void firebaseCloudMessaging_Listeners() {
 if (Platform.isIOS) iOS_Permission();
 _firebaseMessaging.getToken().then((token){
  Navigator.push(context, MaterialPageRoute(
      builder: (context) => PageStack(pages: ContactUs(test: token,), title: "Contact Us", back: true,)));
  print(token);
});

_firebaseMessaging.configure(
  onMessage: (Map<String, dynamic> message) async {
    print('on message $message');
  },
  onResume: (Map<String, dynamic> message) async {
    print('on resume $message');
  },
  onLaunch: (Map<String, dynamic> message) async {
    print('on launch $message');
  },
);
}

void iOS_Permission() {
_firebaseMessaging.requestNotificationPermissions(
    IosNotificationSettings(sound: true, badge: true, alert: true)
);
_firebaseMessaging.onIosSettingsRegistered
    .listen((IosNotificationSettings settings)
{
  print("Settings registered: $settings");
});
}