I am trying to determine what the route is before it is activated so I can cache it and redirect the user back to that route after they have logged in.
In the old beta router I was able to call ComponentInstruction.routeName in the activate hook but in the newer canActivate() guard I do not see a way to access the intended route before it is activated.
I could store the intended route in a shared service when the user clicks on a navagtion button in my app but what about when they enter the URL in the address bar?
From angular router source files:
export interface CanDeactivate<T> {
canDeactivate(component: T,
route:ActivatedRouteSnapshot,
state:RouterStateSnapshot): Observable<boolean> | boolean;
}
ActivatedRouteSnapshot object (route) has url property - array of another type, in first object in property path your current path.
Also inside RouterStateSnapshot object (state) has just string property url with current path, but with / prefix on it.
Simply pass those arguments to your canDeactivate method )
来源:https://stackoverflow.com/questions/38392483/angular-2-rc4-router-get-intended-route-before-activated