我使用Location.subscribe()来检测"返回"按钮。 https://angular.io/docs/ts/latest/api/common/index/Location-class.html
where()
然而,当我重复推动"返回"&" forward"按钮。 我认为Locaion.subscribe()正在泄漏。 但是我不知道如何发布它,因为Location类没有取消订阅()。
如何释放Location.subscribe()或防止泄漏?
我想过使用PlatformLocation.onPopState()。 https://angular.io/docs/ts/latest/api/common/index/PlatformLocation-class.html
但是,文档说明如下
export class PathLocationComponent {
location: Location;
constructor(location: Location) {
location.subscribe(val => console.log(val))//output popstate
}
}
答案 0 :(得分:1)
你可以试试这个:
import {Subscription} from 'rxjs/Subscription';
export class PathLocationComponent implements OnDestroy {
location: Location;
private subscription: Subscription;
constructor(location: Location) {
this.subscription = location.subscribe(val => console.log(val))//output popstate
}
ngOnDestroy(): void {
this.subscription.unsubscribe();
}
}