Angular 应用程序:bootstrap 导航栏不会在小屏幕上显示
Angular App: bootstrap navbar doesn't show up on small screen sizes
我正在制作一个 angular 应用程序(angular 11.2.4 和 bootstrap 4.5.3)并且 navbar
在小于以下尺寸的屏幕上无法正确呈现~580 像素宽。
我可以沿着栏单击切换器和 'expand' 折叠区域,但仍然没有呈现任何内容。这也是当条形图是固定规则时呈现的内容 navbar
html:
<nav class="navbar navbar-expand-sm bg-dark fixed-top hidden-sm hidden-xs">
<div class="navbar-collapse collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link text-white" href="#" routerLink="/home">Home</a>
</li>
<li class="nav-item">
<a class="nav-link text-white" href="#" routerLink="/resume">Resume</a>
</li>
<li class="nav-item">
<a class="nav-link text-white" href="#" routerLink="/projects">Projects</a>
</li>
</ul>
<ul class="navbar-nav">
<li class="nav-item active">
<a class="nav-link" href="https://github.com/">
<img src="../../assets/github_icon.png" width="30" height="30" class="d-inline-block align-top" alt="">
</a>
</li>
</ul>
</div>
</nav>
<nav class = "navbar visible-xs visible-sm">
<button class="navbar-toggler navbar-toggler-left"
type="button"
aria-controls="mobileNavbar"
aria-expanded="false"
[attr.aria-expanded]="!isCollapsed"
aria-label="Toggle mobile navigation"
(click)="toggleMenu()"
>
<span class="dark-blue-text"><i class="fas fa-bars fa-1x">
</i></span>
</button>
<div class="collapse navbar-collapse" id="mobileNavbar" [ngbCollapse]="isCollapsed">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link text-white" href="#" routerLink="/home">Home</a>
</li>
<li class="nav-item">
<a class="nav-link text-white" href="#" routerLink="/resume">Resume</a>
</li>
<li class="nav-item">
<a class="nav-link text-white" href="#" routerLink="/projects">Projects</a>
</li>
</ul>
</div>
</nav>
打字稿:
import { Component, OnInit } from '@angular/core';
@Component({
selector: 'app-main-navbar',
templateUrl: './main-navbar.component.html',
styleUrls: ['./main-navbar.component.css']
})
export class MainNavbarComponent implements OnInit {
isCollapsed = true;
constructor() { }
ngOnInit(): void {
}
toggleMenu()
{
this.isCollapsed = !this.isCollapsed;
}
}
从您的 nav
标签的 class 中移除 hidden-sm hidden-xs
。
编辑:
忽略之前的回答。将 bg-dark
添加到您的第二个导航 class。
<nav class="navbar bg-dark visible-xs visible-sm">
在 Stackblitz 进行演示。
我正在制作一个 angular 应用程序(angular 11.2.4 和 bootstrap 4.5.3)并且 navbar
在小于以下尺寸的屏幕上无法正确呈现~580 像素宽。
我可以沿着栏单击切换器和 'expand' 折叠区域,但仍然没有呈现任何内容。这也是当条形图是固定规则时呈现的内容 navbar
html:
<nav class="navbar navbar-expand-sm bg-dark fixed-top hidden-sm hidden-xs">
<div class="navbar-collapse collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link text-white" href="#" routerLink="/home">Home</a>
</li>
<li class="nav-item">
<a class="nav-link text-white" href="#" routerLink="/resume">Resume</a>
</li>
<li class="nav-item">
<a class="nav-link text-white" href="#" routerLink="/projects">Projects</a>
</li>
</ul>
<ul class="navbar-nav">
<li class="nav-item active">
<a class="nav-link" href="https://github.com/">
<img src="../../assets/github_icon.png" width="30" height="30" class="d-inline-block align-top" alt="">
</a>
</li>
</ul>
</div>
</nav>
<nav class = "navbar visible-xs visible-sm">
<button class="navbar-toggler navbar-toggler-left"
type="button"
aria-controls="mobileNavbar"
aria-expanded="false"
[attr.aria-expanded]="!isCollapsed"
aria-label="Toggle mobile navigation"
(click)="toggleMenu()"
>
<span class="dark-blue-text"><i class="fas fa-bars fa-1x">
</i></span>
</button>
<div class="collapse navbar-collapse" id="mobileNavbar" [ngbCollapse]="isCollapsed">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link text-white" href="#" routerLink="/home">Home</a>
</li>
<li class="nav-item">
<a class="nav-link text-white" href="#" routerLink="/resume">Resume</a>
</li>
<li class="nav-item">
<a class="nav-link text-white" href="#" routerLink="/projects">Projects</a>
</li>
</ul>
</div>
</nav>
打字稿:
import { Component, OnInit } from '@angular/core';
@Component({
selector: 'app-main-navbar',
templateUrl: './main-navbar.component.html',
styleUrls: ['./main-navbar.component.css']
})
export class MainNavbarComponent implements OnInit {
isCollapsed = true;
constructor() { }
ngOnInit(): void {
}
toggleMenu()
{
this.isCollapsed = !this.isCollapsed;
}
}
从您的 nav
标签的 class 中移除 hidden-sm hidden-xs
。
编辑:
忽略之前的回答。将 bg-dark
添加到您的第二个导航 class。
<nav class="navbar bg-dark visible-xs visible-sm">
在 Stackblitz 进行演示。