import { Injectable } from '@angular/core'; import { BehaviorSubject, Observable } from 'rxjs' import { Platform } from '@ionic/angular' @Injectable({ providedIn: 'root' }) export class NetworkConnectionService { online: boolean = true; constructor(){} checkOnline() { window.addEventListener('online', (on) => { this.online === true; console.log('Became online'); }); } checkOffline() { window.addEventListener('offline', (off) => { this.online === false; console.log('Became offline') }); } }