问Ionic 2中的线程

EN

ionic plugin add cordova-plugin-network-information

import { Injectable } from '@angular/core';
import { Platform } from 'ionic-angular';
import { Network } from 'ionic-native';

@Injectable()
export class NetworkService {
onDevice: boolean;

constructor(
    private platform: Platform,
) {
    this.onDevice = this.platform.is('cordova');
}


isOnline(): boolean {
    if (this.onDevice && Network.type !== 'none') {
        return true;
    } else {
        return navigator.onLine;
    }
}

}

ionic plugin add cordova-plugin-network-information

import { Network } from 'ionic-native';

//watch network for a disconnect
let disconnectSubscription = Network.onDisconnect().subscribe(() => {
    console.log('network was disconnected :-(');
    // Warn your service worker about this and create a queue or
    //something to notify your server when you get connection again.
});

//watch network for a connection
let connectSubscription = Network.onConnect().subscribe(() => {
    console.log('network connected!');
    // We just got a connection but we need to wait briefly
    // Notify to your service-worker.js about this and hit your server.
});