如何检测子组件的路由更改?这是我尝试过的,但我只看到app组件跟踪路由更改 . 我希望能够检测到网址何时从例如在MetaDetailView组件中#/ meta / a / b / c到#/ meta / a / b / c / d .
@RouteConfig([
{ path: '/', name: 'Home', redirectTo: ['Meta']},
{ path: '/meta/...', name: 'Meta', component: MetaMainComponent, useAsDefault: true},
...other routes...,
])
export class AppComponent {
constructor(private _router: Router) {
_router.subscribe( (url) => console.log("app.url = " + url));
}
}
@RouteConfig([
{ path: '/*other', name: 'Detail', component: MetaDetailViewComponent, useAsDefault: true},
])
export class MetaMainComponent {
constructor(private _router: Router) {
_router.subscribe( (url) => console.log("metamain.url = " + url));
console.log("MetaMainComponent")
}
}
export class MetaDetailViewComponent {
constructor(private _router: Router) {
_router.subscribe( (url) => console.log("metadetail.url = " + url));
console.log("MetaDetailViewComponent")
}
}
谢谢杰斯珀
3 回答
创建一个订阅
router
的全局服务,并将服务注入您想要了解的有关路由更改的任何位置 . 该服务可以通过Observable
本身公开更改,因此感兴趣的组件也可以订阅以自动获得通知 .RC3解决方案:
您可以从任何子路由器进行root访问: