我在我的示例项目中使用星云菜单。我有一个场景如下。我假设侧边栏中有 4 个菜单项,每个菜单项都有 4 到 5 个子菜单。
例如。
menu 1
submenu 1
submenu 2
menu 2
submenu 1
submenu 2
submenu 3
menu 3
menu 4
等等。
现在,当我单击菜单 1 时,我可以看到 2 个菜单,现在我单击子菜单 2,它会将我引向该特定页面。现在,如果我点击菜单 2,我可以看到 3 个子菜单,如果我点击子菜单 3,它会将我重定向到该特定页面,
现在的问题是,两个菜单都在侧边栏中打开,我可以看到所有子菜单。如果其他菜单打开,我想关闭侧边栏中的上一个菜单。这可能在星云菜单中吗?任何帮助表示赞赏。
请查看以下链接以供参考,(也可以尝试单击与我相同的侧边栏菜单。)
https://akveo.github.io/nebular/docs/components/menu/api#nbmenucomponent
这是我的侧边栏菜单代码供参考。
import { Component, OnDestroy } from '@angular/core';
import { delay, withLatestFrom, takeWhile } from 'rxjs/operators';
import {
NbMediaBreakpoint,
NbMediaBreakpointsService,
NbMenuItem,
NbMenuService,
NbSidebarService,
NbThemeService,
} from '@nebular/theme';
import { StateService } from '../../../@core/data/state.service';
// TODO: move layouts into the framework
@Component({
selector: 'app-sample-layout',
styleUrls: ['./sample.layout.scss'],
template: `
<nb-layout [center]="layout.id === 'center-column'" windowMode>
<nb-layout-header fixed>
<app-header [position]="sidebar.id === 'start' ? 'normal':
'inverse'"></app-header>
</nb-layout-header>
<nb-sidebar class="menu-sidebar"
tag="menu-sidebar"
responsive
[end]="sidebar.id === 'end'">
<nb-sidebar-header *ngIf="currentTheme == 'default'">
<a href="#" class="btn btn-hero-success main-btn">
<img class="sidebar-logo" src="assets/images/icon.png" alt="menu" /> <span class="sidebar-title">MENU </span>
</a>
</nb-sidebar-header>
<ng-content select="nb-menu"></ng-content>
</nb-sidebar>
<nb-layout-column class="main-content">
<ng-content select="router-outlet"></ng-content>
</nb-layout-column>
<nb-layout-footer fixed>
<app-footer></app-footer>
</nb-layout-footer>
</nb-layout>
`,
})
export class SampleLayoutComponent implements OnDestroy {
subMenu: NbMenuItem[] = [
{
title: 'PAGE LEVEL MENU',
group: true,
},
];
layout: any = {};
sidebar: any = {};
private alive = true;
currentTheme: string;
constructor(protected stateService: StateService,
protected menuService: NbMenuService,
protected themeService: NbThemeService,
protected bpService: NbMediaBreakpointsService,
protected sidebarService: NbSidebarService) {
this.stateService.onLayoutState()
.pipe(takeWhile(() => this.alive))
.subscribe((layout: string) => this.layout = layout);
this.stateService.onSidebarState()
.pipe(takeWhile(() => this.alive))
.subscribe((sidebar: string) => {
this.sidebar = sidebar;
});
const isBp = this.bpService.getByName('is');
this.menuService.onItemSelect()
.pipe(
takeWhile(() => this.alive),
withLatestFrom(this.themeService.onMediaQueryChange()),
delay(20),
)
.subscribe(([item, [bpFrom, bpTo]]: [any, [NbMediaBreakpoint, NbMediaBreakpoint]]) => {
if (bpTo.width <= isBp.width) {
this.sidebarService.collapse('menu-sidebar');
}
});
this.themeService.getJsTheme()
.pipe(takeWhile(() => this.alive))
.subscribe(theme => {
this.currentTheme = theme.name;
});
}
ngOnDestroy() {
this.alive = false;
}
}