onSameUrlNavigation
從angular5.1起提供onSameUrlNavigation來支持路由重新加載。、
有兩個值'reload'和'ignore'。默認爲'ignore'
定義當路由器收到一個導航到當前 URL 的請求時應該怎麼做。 默認情況下,路由器將會忽略這次導航。但這樣會阻止類似於 "刷新" 按鈕的特性。 使用該選項可以配置導航到當前 URL 時的行爲。
使用
配置onSameUrlNavigation
@NgModule({
imports: [RouterModule.forRoot(
routes,
{ onSameUrlNavigation: 'reload' }
)],
exports: [RouterModule]
})
reload實際上不會重新加載路由,只是重新出發掛載在路由器上的事件。
配置runGuardsAndResolvers
runGuardsAndResolvers有三個值:
- paramsChange: 僅在路由參數更改時觸發。如/reports/:id 中id更改
- paramsOrQueryParamsChange: 當路由參數更改或參訓參數更改時觸發。如/reports/:id/list?page=23中的id或page屬性更改
- always :始終觸發
const routes: Routes = [
{
path: '',
children: [
{ path: 'report-list', component: ReportListComponent },
{ path: 'detail/:id', component: ReportDetailComponent, runGuardsAndResolvers: 'always' },
{ path: '', redirectTo: 'report-list', pathMatch: 'full' }
]
}
];
組件監聽router.events
import {Component, OnDestroy, OnInit} from '@angular/core';
import {Observable} from 'rxjs';
import {Report} from '@models/report';
import {ReportService} from '@services/report.service';
import {ActivatedRoute, NavigationEnd, Router} from '@angular/router';
@Component({
selector: 'app-report-detail',
templateUrl: './report-detail.component.html',
styleUrls: ['./report-detail.component.scss']
})
export class ReportDetailComponent implements OnInit, OnDestroy {
report$: Observable<Report>;
navigationSubscription;
constructor(
private reportService: ReportService,
private router: Router,
private route: ActivatedRoute
) {
this.navigationSubscription = this.router.events.subscribe((event: any) => {
if (event instanceof NavigationEnd) {
this.initLoad(event);
}
});
}
ngOnInit() {
const id = +this.route.snapshot.paramMap.get('id');
this.report$ = this.reportService.getReport(id);
}
ngOnDestroy(): void {
// 銷燬navigationSubscription,避免內存泄漏
if (this.navigationSubscription) {
this.navigationSubscription.unsubscribe();
}
}
initLoad(e) {
window.scrollTo(0, 0);
console.log(e);
}
}