当应用程序处于后台时，离线2应用程序无法在点击推送通知上打开

Question

我遇到的问题是，如果用户打开应用程序然后按主页按钮或切换到其他应用程序，并且当推送通知到达时，并且用户点击了该通知，则我的应用程序无法打开。我在离子中使用这个插件 - ＆gt; https://ionicframework.com/docs/native/push/

当app处于后台时，应用程序在点击推送通知时无法打开。如何使用该插件解决该问题。

这是我的app.component.ts

import { Component, enableProdMode } from '@angular/core';
import { Platform, NavController, App } from 'ionic-angular';
import { StatusBar } from '@ionic-native/status-bar';
import { Keyboard } from '@ionic-native/keyboard';
import { SplashScreen } from '@ionic-native/splash-screen';
import { HomePage } from '../pages/home/home';
import { Push, PushObject, PushOptions } from '@ionic-native/push';
import { GlobalProvider } from "./global.provider";
import { NotificationDetailsPage } from '../pages/notification-details/notification-details';

enableProdMode();

@Component({
  templateUrl: 'app.html'
})
export class MyApp {
  rootPage:any = HomePage;
  private navCtrl: any;

  constructor(
    private platform: Platform,
    private app:App,
    private statusBar: StatusBar,
    private splashScreen: SplashScreen,
    private keyboard: Keyboard,
    private globalVar: GlobalProvider,
    private push: Push
  ) {
    platform.ready().then(() => {
      // Okay, so the platform is ready and our plugins are available.
      // Here you can do any higher level native things you might need.
      this.navCtrl = this.app.getActiveNav();
      this.statusBar.overlaysWebView(false);
      this.statusBar.backgroundColorByHexString('#000000');
      setTimeout(() => {
        this.splashScreen.hide();
      }, 500);
      this.keyboard.disableScroll(true);
      this.initPushNotification();
    });
  }
  initPushNotification() {
    const options: PushOptions = {
       android: {
          icon: 'small-icon',
          forceShow: true
       },
       ios: {
          alert: 'true',
          badge: true,
          sound: 'true'
       },
       windows: {}
    };
    const pushObject: PushObject = this.push.init(options);
    pushObject.on('notification').subscribe((notification: any) => {
      //Notification Display Section
      this.navCtrl.push(NotificationDetailsPage, {notifyId:notification.additionalData.id});
    });
    pushObject.on('registration').subscribe((registration: any) => {
      //Register Device ID
      let platformName;
      if (this.platform.is('android')) {
        platformName = 'android';
      } else {
        platformName = 'ios';
      }
      this.globalVar.saveDeviceId(registration.registrationId, platformName).subscribe( data => {});
    });
    pushObject.on('error').subscribe(error => {
      console.log('Can\'t send push notification');
    });
  }
}

当应用在后台时，当用户点击推送通知时，如何处理或触发this.navCtrl.push？请帮我解决这个问题。差不多3天了，我找不到任何解决办法。