Typescript 在Ionic应用程序中保存FCM通知数据

我可以向我的应用程序发送通知。 如果我的应用正在运行，那么它可以保存传入的通知数据

如果我的应用程序关闭，我单击通知托盘上的通知，它会打开我的应用程序，但不会保存通知数据 关于在应用程序关闭时如何保存通知数据，有什么建议吗？ 下面是代码

    platform.ready().then(() => {


  fcm.onNotification().subscribe( data => {
    this.con.notification_title = data.notification_title;
    this.con.notification_message = data.notification_message;
      if(localStorage.getItem('oldmsg'))
      {
        this.temparr = JSON.parse(localStorage.getItem('oldmsg')); 
        this.temparr.push({"notification_title":this.con.notification_title,"notification_message": this.con.notification_message}); 
        localStorage.setItem('oldmsg',JSON.stringify(this.temparr));
        this.presentToast("You Recieved A Message!");

      }
      else{

        this.temparr.push({"notification_title":this.con.notification_title,"notification_message": this.con.notification_message}); 
        localStorage.setItem('oldmsg',JSON.stringify(this.temparr));
        this.presentToast("You Recieved A Message!");

      }
    });

 statusBar.styleDefault();
  splashScreen.hide();

  this.storage.get('introShow').then((result) => {

    if(result){

      this.navCtrl.setRoot(LoginPage);
      this.storage.set('introShow', true);
    } else {

      this.navCtrl.setRoot(IntroPage);
      this.storage.set('introShow', true);
    }

    this.listenToLoginEvents();
  });


});

---

我已经删除了数据。无论发生什么情况，我都会检查以保存消息。

希望这对某人有所帮助

        this.Onesignal.startInit(this.oneSignalAppId, this.sender_id);
    this.Onesignal.inFocusDisplaying(this.Onesignal.OSInFocusDisplayOption.Notification);
    this.Onesignal.handleNotificationReceived().subscribe(// when its received
        data => {
          if (localStorage.getItem('notifications')) {
            this.temparr = JSON.parse(localStorage.getItem('notifications'));
            this.temparr.push({body: data.payload.body,
            title: data.payload.title,
            type: data.payload.additionalData.type});
            localStorage.setItem('notifications', JSON.stringify(this.temparr.reverse()));

            this.events.publish('user:noti_done', {
              user: 'done',
              time: new Date()
            });

          } else {
            this.temparr.push({body: data.payload.body,
            title: data.payload.title,
            type: data.payload.additionalData.type});
            localStorage.setItem('notifications', JSON.stringify(this.temparr));

            this.events.publish('user:noti_done', {
              user: 'done',
              time: new Date()
            });
          }
        });
    
    this.Onesignal.handleNotificationOpened().subscribe(data => {
      console.log('handleNotificationOpened');
      console.log(data);
      
    });
    this.Onesignal.endInit();
}