我的应用程序上有一个 Angular 4 Material Sidenav,里面有一堆按钮,其中一些按钮调用函数,另一些则路由到其他页面。
除了让每个按钮调用相同的函数,然后查找要调用的函数(例如发送参数上的开关)之外,是否有一种内置方法可以在子单击时关闭侧导航?
这是侧边导航的样子:
<md-sidenav #sidenav align="end">
<br/>
<span style="margin: 17px">{{auth?.userProfile?.name}}</span> <br />
<button md-button routerLink="/spells"> All Spells </button> <br />
<button md-button (click)="login()" *ngIf="!auth.authenticated()">Log In</button>
<button md-button routerLink="/spellbook" *ngIf="auth.authenticated()"> My Spellbooks </button> <br />
<button md-button (click)="auth.logout()" *ngIf="auth.authenticated()">Log Out</button>
</md-sidenav>
我看到这个问题,发现有一个默认事件与您可以使用的 sidenav 绑定。如果您将
(click)="sidenav.toggle()"
放在侧导航(或侧导航本身)内的任何内容上,它应该关闭。这是我的代码:
<mat-sidenav-container class="container">
<mat-sidenav #sidenav (click)="sidenav.toggle()">
<p class="menu-item">
<a routerLink="">
<button mat-button><mat-icon>dashboard</mat-icon><span> Dashboard</span></button>
</a>
</p>
<p class="menu-item">
<a routerLink="account">
<button mat-button><mat-icon>account_circle</mat-icon><span> My Account</span></button>
</a>
</p>
<p class="menu-item">
<button mat-button><mat-icon>clear</mat-icon><span> Log Out</span></button>
</p>
</mat-sidenav>
<mat-sidenav-content>
<div id="menu-bar">
<button mat-button (click)="sidenav.open()" id="menu-button"><mat-icon style="color: #fff;">menu</mat-icon></button>
<span id="app-title">App Name</span>
</div>
<div class="internal-container">
<router-outlet></router-outlet>
</div>
</mat-sidenav-content>
</mat-sidenav-container>
只是偶然发现了这一点,如果您使用
(click)="sidenav.mode === 'side' || sidenav.close()
,则只有在结束模式下才会关闭。
我建议你有两种方法。
1.处理按钮的点击事件并将逻辑放在组件中。
<button md-button (click)="routeToSpells()"> All Spells </button> <br />
<button md-button (click)="login()" *ngIf="!auth.authenticated()">Log In</button>
<button md-button (click)="reouteToSpellBook()" *ngIf="auth.authenticated()"> My Spellbooks </button> <br />
<button md-button (click)="logout()" *ngIf="auth.authenticated()">Log Out</button>
routeToSpells(){
this.sidenav.close();
this.router.navigat('...')
}
login(){
this.sidenav.close();
.....
}
reouteToSpellBook(){
this.sidenav.close();
this.router.navigat('...')
}
logout(){
this.sidenav.close();
this.auth.logout
}
或者在子组件中实现 OnDestroy() 并在任何原因下关闭侧面导航
我刚刚想通了:
<mat-sidenav-container [hasBackdrop]="true">
<mat-sidenav #sidenav mode="side" class="sideNavigation">
<mat-nav-list>
<a mat-list-item routerLink="" (click)="sidenav.close()"> bar</a>
<a mat-list-item routerLink="/bar" (click)="sidenav.close()">foo</a>
<a mat-list-item routerLink="/foo" (click)="sidenav.close()">whatever</a>
<a mat-list-item routerLink="/something1" (click)="sidenav.close()">SomePage</a>
<a mat-list-item routerLink="/something2" (click)="sidenav.close()">Some Page</a>
</mat-nav-list>
</mat-sidenav>
<mat-sidenav-content>
<mat-toolbar color="accent">
<mat-icon (click)="sidenav.toggle()">menu</mat-icon>
<div class="divider"></div>
<img class="img" src="../assets/img/logo.png" alt="logo" (click)="goHome()" />
</mat-toolbar>
<router-outlet></router-outlet>
</mat-sidenav-content>
</mat-sidenav-container>
添加
(click)="sidenav.close()"
与 routerLink="/whatever/path/here"
一起工作。
添加
(click)="sidenav.close()"
以及 routerLink="/whatever/path/here"
让我们让它更通用一些,这样您就不必在每次点击时都处理这个问题。我假设你们大多数人都想使用侧导航导航到其他页面。
所以你会:
<div class="nav-container">
<mat-toolbar color="primary" class="main-toolbar">
<button mat-icon-button (click)="snav.toggle()"><mat-icon>menu</mat-icon></button>
</mat-toolbar>
<mat-sidenav-container class="sidenav-container">
<mat-sidenav #snav [mode]="'over'" [fixedInViewport]="true" fixedTopGap="56" role="navigation">
<mat-nav-list>
<mat-list-item routerLink="./home">Home</mat-list-item>
<mat-list-item routerLink="./page-1">Page x</mat-list-item>
</mat-sidenav>
<mat-sidenav-content>
<router-outlet></router-outlet>
</mat-sidenav-content>
</mat-sidenav-container>
</div>
在 ts 中:
import { Component, ViewChild } from '@angular/core';
import { NavigationStart, Router } from '@angular/router';
import { MatSidenav } from '@angular/material/sidenav';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.scss']
})
export class AppComponent {
title = 'test';
private unsubscribe$ = new Subject<void>();
@ViewChild('snav') snav!: MatSidenav;
constructor(
private router: Router
) {
// routing events
this.router.events.pipe(takeUntil(this.unsubscribe$)).subscribe();
this.router.events.pipe(takeUntil(this.unsubscribe$)).subscribe((event: any) => {
this._navigationInterceptor(event);
});
}
private _navigationInterceptor(event: Event): void {
if (event instanceof NavigationStart) {
this.snav.close();
this._showSpinner();
}
}
}
这样,当您切换到新页面时,侧面导航将始终关闭。 另请注意
mat-nav-list
和 mat-list-item
,有点无证,但更好。