在Bootstrap 4中创建响应式导航栏边栏“抽屉”吗?

我在网上看到了一些使用其他版本的引导程序的示例,但是它们都改变了CSS太多,这使得学习引导程序更加困难。

我想知道在Bootstrap 4中是否可以使用折叠,叠丸,flexbox之类的工具来完成此任务?

我的Jsfiddle缺少什么:

  1. 反应不正确
  2. 导航栏在粘性类中无法正确滚动
  3. 即使我设置了课程,菜单按钮也不是很粘。
  4. 尽管不需要答案,但背景调光器会很棒

在我的示例中,我无法弄清楚如何插入导航栏,不确定是否需要它才能正确响应。

还不确定将其作为列是否是正确的方法,难道它不适合画布吗?

HTML代码:

<div class="container-fluid h-100">

<div class="row h-100">

<div class="col-5 col-md-3 collapse m-0 p-0 h-100 bg-dark" id="collapseExample">

<ul class="nav flex-column navbar-dark sticky-top">

<li class="nav-item">

<a class="nav-link active" href="#">Active</a>

</li>

<li class="nav-item">

<a class="nav-link" href="#">Link</a>

</li>

<li class="nav-item">

<a class="nav-link" href="#">Link</a>

</li>

<li class="nav-item">

<a class="nav-link disabled" href="#">Disabled</a>

</li>

</ul>

</div>

<div class="col">

<div class="row">

<div class="col-12">

<button class="btn sticky-top" data-toggle="collapse" href="#collapseExample" role="button">

Menu

</button>

</div>

<div class="col-12">

Lorem...

</div>

</div>

</div>

</div>

</div>

回答:

侧边栏导航可能非常复杂。这就是Bootstrap没有“开箱即用”组件的原因。 :

  • 响应式-根据屏幕宽度设置不同的宽度,可见性或方向?
  • 多级-导航项是否具有子级?这个高度会受到怎样的影响?
  • 可切换-边栏可以通过按钮或“汉堡包”切换吗?
  • 推送与重叠-页面内容是隐藏在侧边栏的后面还是旁边?
  • 左侧还是右侧-页面内容左侧还是右侧的侧边栏是?
  • 固定或固定-侧边栏在页面滚动上的位置如何?
  • 动画样式-向左/向右/向上/向下滑动?是否折叠?


在这种“侧边栏”情况下…而不是col-auto在右列中使用col。这样,当折叠菜单时它将填充宽度

<div class="container-fluid h-100">

<div class="row h-100">

<div class="col-5 col-md-3 collapse width m-0 p-0 h-100 bg-dark" id="collapseExample">

..

</div>

<div class="col">

<div class="row">

<div class="col-12">

<button class="btn sticky-top" data-toggle="collapse" href="#collapseExample" role="button">

Menu

</button>

</div>

<div class="col-12">

..

</div>

</div>

</div>

</div>

</div>

为了使动画更加平滑,必须覆盖Bootstrap的折叠过渡,该过渡通常在高度上起作用

根据赏金要求,我用另外2个示例更新了侧边栏

该版本更接近示例,并且具有相同的幻灯片左/右“抽屉”动画。

body {

height: 100vh;

overflow-x: hidden;

padding-top: 56px;

}

.vh-100 {

min-height: 100vh;

}

.sidebar.collapse.show,

.sidebar.collapse.show + .col {

transition: .18s ease;

transform: translate(0,0,0);

left: 0;

}

.sidebar.collapse,

.sidebar.collapsing,

.sidebar.collapsing + .col {

transition: .18s ease;

transform: translate(-25%,0,0);

z-index: 1050;

left: -25%;

}


非常 接近:

此侧边栏具有:

  • 可以任意宽度打开/关闭
  • 反应灵敏- 成为

完整版确实需要更多CSS,但是其中一些是可选的…

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet"/>

<link href="//maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet">

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<style>

body {

height: 100vh;

overflow-x: hidden;

padding-top: 55px;

}

/* set the sidebar width */

.w-sidebar {

width: 200px;

max-width: 200px;

}

.row.collapse {

margin-left: -200px;

left: 0;

transition: margin-left .15s linear;

}

.row.collapse.show {

margin-left: 0 !important;

}

.row.collapsing {

margin-left: -200px;

left: -0.05%;

transition: all .15s linear;

}

/* optional */

.vh-100 {

min-height: 100vh;

}

/* optional for overlay sidebar on small screens */

@media (max-width:768px) {

.row.collapse,

.row.collapsing {

margin-left: 0 !important;

left: 0 !important;

overflow: visible;

}

.row > .sidebar.collapse {

display: flex !important;

margin-left: -100% !important;

transition: all .3s linear;

position: fixed;

z-index: 1050;

max-width: 0;

min-width: 0;

flex-basis: auto;

}

.row > .sidebar.collapse.show {

margin-left: 0 !important;

width: 100%;

max-width: 100%;

min-width: initial;

}

.row > .sidebar.collapsing {

display: flex !important;

margin-left: -10% !important;

transition: all .2s linear !important;

position: fixed;

z-index: 1050;

min-width: initial;

}

}

</style>

<div class="container-fluid fixed-top bg-dark py-3">

<div class="row collapse show no-gutters d-flex h-100 position-relative">

<div class="col-3 px-0 w-sidebar navbar-collapse collapse d-none d-md-flex">

<!-- spacer col -->

</div>

<div class="col px-2 px-md-0">

<!-- toggler -->

<a data-toggle="collapse" href="#" data-target=".collapse" role="button" class="p-1">

<i class="fa fa-bars fa-lg"></i>

</a>

</div>

</div>

</div>

<div class="container-fluid px-0 h-100">

<div class="row vh-100 collapse show no-gutters d-flex h-100 position-relative">

<div class="col-3 p-0 vh-100 h-100 w-sidebar navbar-collapse collapse d-none d-md-flex sidebar">

<!-- fixed sidebar -->

<div class="position-fixed bg-dark text-white h-100 w-sidebar pl-2">

<ul class="nav flex-column">

<li class="nav-item">

<a class="nav-link active" href="#">Link</a>

</li>

<li class="nav-item">

<a class="nav-link" href="#">Link</a>

</li>

</ul>

</div>

</div>

<div class="col p-3">

<h3>Content..</h3>

<p class="lead">Try this is full-page view to see the animation on larger screens!</p>

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</div>

</div>

</div>

<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>

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