Will Angular 2 child routes refresh the parent route

问题

I have an application in which I route between children of a parent route in some situations. One will look like example.com/a/1/ another example.com/a/2/ will switching from 1 to 2 trigger a reload/render of the page a?

Like playing a video in a and have a routes outlet as sibling to that video, will this change of page trigger the video to reload?

If so, can this be prevented?

回答1:

No, it won't. The parent component will only be refreshed if you navigate away from it and then navigate to it again.

回答2:

I have got the solution:

constructor(private _router:Router,private _activatedRoute:ActivatedRoute){}
this._router.events.subscribe(event => {
  if (event instanceof NavigationEnd) { 
    // this._activatedRoute.snapshot is up to date
  }
});

Works like a charm

Credit: Angular Issue

Solution by @skreborn

Thanks

来源：https://stackoverflow.com/questions/41642727/will-angular-2-child-routes-refresh-the-parent-route