[英]Angular 7 - Set time interval between navigation of routes
我想在從一頁導航到另一頁時看到一個加載器。 為此,我故意要設置兩條路線導航之間的超時或時間間隔。 路由的名稱為“列表”和“注冊”。 如何在兩條路線的導航之間添加時間間隔?
儀表板組件 :
import { Component, OnInit } from '@angular/core';
import { Router, Event, NavigationStart, NavigationEnd } from '@angular/router';
@Component({
selector: 'app-dashboard',
templateUrl: './dashboard.component.html',
styleUrls: ['./dashboard.component.css']
})
export class DashboardComponent implements OnInit {
showloader = true;
constructor(private route: Router) {
this.route.events.subscribe((routerEvent: Event) => {
if(routerEvent instanceof NavigationStart){
this.showloader = true;
}
if(routerEvent instanceof NavigationEnd){
this.showloader = false;
}
});
}
ngOnInit() {
}
}
DashBoard.html:
<div>
<nav class="navbar navbar-expand-sm bg-light">
<ul class="nav navbar-nav">
<li class="nav-item">
<a class="nav-link" routerLink="list">List of Animes</a>
</li>
<li class="nav-item">
<a class="nav-link" routerLink="register">Register</a>
</li>
<li class="nav-item">
<a class="nav-link">Description</a>
</li>
</ul>
</nav>
</div>
routerOnActivate() { //or ngOnInit()
this.timer = setInterval(()=>{
...
}, 100);
}
routerOnDeactivate() {
clearInterval(this.timer);
}
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