Angular 2 – 在导航点击时隐藏bootstrap导航栏

import { Directive,ElementRef,Input,HostListener } from "@angular/core";

@Directive({
    selector: "[menuClose]"
})
export class CloseMenuDirective {
    @Input()
    public menu: any;

    constructor(private element: ElementRef) { }

    @HostListener("click")
    private onClick() {
        this.menu.classList.remove("show");
    }
}

不要忘记将它添加到声明数组中的app.module

import { CloseMenuDirective } from './directives/close-menu.directive';
@NgModule({
    declarations: [
        ...declarations,CloseMenuDirective
    ]
})
export class AppModule { }

然后在HTML中创建对菜单的引用并将其传递给link元素.

<div class="page-layout">
    <!-- Mark the menu with #menu,thus creating a reference to it -->
    <aside class="collapse navbar-toggleable page-menu" id="navbar-header" #menu>
        <ul class="nav">
            <li class="nav-item">
                <a class="nav-link"
                   [routerLink]="['./somewhere']"
                   routerLinkActive="active"
                   menuClose      <!-- Our custom directive above -->
                   [menu]="menu"> <!-- Bind to menu -->
                    <span>My Link</span>
                </a>
            </li>
        </ul>
    </aside>
</div>