我有以下代碼：clickEventsubscription: Subscription;  constructor(    private activatedRoute: ActivatedRoute,    private newsService: NewsService,    private app: AppComponent,    private EventlistenerService: EventlistenerService,    public modalController: ModalController  ) {    this.clickEventsubscription = this.EventlistenerService.getClickEvent().subscribe(() => {      this.update();    });  }    update() {    this.resetParameters();    this.ngOnInit();  }我想等到resetParameters(); 完成后調用ngOnInit(); 或其他一些類，因為我想首先重置參數，以便加載但參數不會被重置...