flutter - 从推送通知打开 Flutter 应用程序，当它被杀死时

Question

我是 flutter 的新手并试图实现推送通知。我已使用 ONE SIGNAL 进行推送通知

在这里，我初始化了一个信号并获取了我发送到服务器的 playerId。

    void oneSignalInit() async {
    SharedPreferences preferences = await SharedPreferences.getInstance();
    OneSignal.shared.init('one signal id');
    OneSignal.shared.setInFocusDisplayType(OSNotificationDisplayType.notification);

    status = await OneSignal.shared.getPermissionSubscriptionState();

    var playerId = status.subscriptionStatus.userId;
    print(playerId);
    preferences.setString(Constants.PLAYER_ID, playerId);
}

在这里，我收到来自一个信号的通知并从中获取所需的数据。

 notificationHandler() {
OneSignal.shared.setNotificationReceivedHandler((OSNotification notification) {
  // will be called whenever a notification is received

  var data = notification.payload.additionalData;
  print(data['body']['tripID'].toString());
  showNotification(message);

});

现在，我正在提高我的自定义通知，使用 flutter_local_notification 依赖项

      showNotification(var msg) async {
    print("show notification is working");
    AndroidNotificationDetails androidPlatformChannelSpecifics =
    new AndroidNotificationDetails(
        msg, msg, msg);
    IOSNotificationDetails iOSPlatformChannelSpecifics =
    new IOSNotificationDetails();
    NotificationDetails platformChannelSpecifics = new NotificationDetails(
        androidPlatformChannelSpecifics, iOSPlatformChannelSpecifics);
    await flutterLocalNotificationsPlugin.show(
        0, msg, msg, platformChannelSpecifics,
        payload: 'item id 2');
  }

在这里，notificatin 将在 android 和 ios 平台上引发，并且 onNotificationcClick 回调也在此处声明。

 flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();
var android = AndroidInitializationSettings('@mipmap/ic_launcher');
var iOS = IOSInitializationSettings();
var initSettings = InitializationSettings(android, iOS);
flutterLocalNotificationsPlugin.initialize(initSettings,
    onSelectNotification: onNotification);

点击通知时

      Future onNotification(String payload) {
    print(payload);
    navigatorKey.currentState.pushNamed("/notification");

  }

当应用程序在后台或未被杀死时，这工作正常。当它被杀死时，我无法打开我的 Flutter 应用程序。

任何形式的帮助将不胜感激.. !!

Answer 1

FirebaseMessaging.instance.getInitialMessage() .then((RemoteMessage message) {}});当应用程序被杀死时收到消息时，此函数将运行。在函数体里面写你想做的任何事情。