code
import { Injectable } from ‘@angular/core‘; import { Subject } from ‘rxjs/Subject‘; @Injectable() export class CommonService { private notify = new Subject<any>(); /** * Observable string streams */ notifyObservable$ = this.notify.asObservable(); constructor() { } public notifyOther(data: any) { if (data) { this.notify.next(data); } } }
项目示例
表单提交后更新其他组件数据列表
定义:
constructor( private router: Router, private actRouter: ActivatedRoute, private appStoreService: AppStoreService, private comService: CommonService) { this.subscribeUpdate(comService); } subscribeUpdate(comService: CommonService) { this.comService.notifyObservable$.subscribe(data => { if (data == ‘refreshWebApp‘) { this.loadWebApp(); } }, error => { console.log(`subscribe error:${error}`) }) }
调用:
this.comService.notifyOther(‘refreshWebApp‘);