列表群组(List group)
列表组是显示一系列内容的灵活而强大的组件。修改和扩展它们以支持其中的任何内容。
基本示例
最基本的列表组是一个无序的列表,其中包含列表项和适当的类。在它的基础上使用下面的选项,或者根据需要使用您自己的CSS。
- An item
- A second item
- A third item
- A fourth item
- And a fifth one
<ul class="list-group">
<li class="list-group-item">An item</li>
<li class="list-group-item">A second item</li>
<li class="list-group-item">A third item</li>
<li class="list-group-item">A fourth item</li>
<li class="list-group-item">And a fifth one</li>
</ul>
活动项目
将.active加到.list-group-item指示当前的活动状态。
- An active item
- A second item
- A third item
- A fourth item
- And a fifth one
<ul class="list-group">
<li class="list-group-item active" aria-current="true">An active item</li>
<li class="list-group-item">A second item</li>
<li class="list-group-item">A third item</li>
<li class="list-group-item">A fourth item</li>
<li class="list-group-item">And a fifth one</li>
</ul>
禁用项目
将.disabled加到.list-group-item使其呈现禁用。请注意,一些带有.disabled的元素还需要自定义JavaScript才能完全禁用其点击事件(例如:链接)。
- A disabled item
- A second item
- A third item
- A fourth item
- And a fifth one
<ul class="list-group">
<li class="list-group-item disabled" aria-disabled="true">A disabled item</li>
<li class="list-group-item">A second item</li>
<li class="list-group-item">A third item</li>
<li class="list-group-item">A fourth item</li>
<li class="list-group-item">And a fifth one</li>
</ul>
链接和按钮
使用a或button,并加入.list-group-item-action来创建具有hover、禁用和启用状态的动态列表群组。我们分离这些伪类别,以确保由非交互元素组成的列表群组(如li或div)不提供点击或触击。
确保不要在这里使用标准的.btn。
<div class="list-group">
<a href="#" class="list-group-item list-group-item-action active" aria-current="true">
The current link item
</a>
<a href="#" class="list-group-item list-group-item-action">A second link item</a>
<a href="#" class="list-group-item list-group-item-action">A third link item</a>
<a href="#" class="list-group-item list-group-item-action">A fourth link item</a>
<a href="#" class="list-group-item list-group-item-action disabled" tabindex="-1" aria-disabled="true">A disabled link item</a>
</div>
对于button,你也可以使用disabled属性而不是.disabled class。不幸的是,a不支持disabled属性。
<div class="list-group">
<button type="button" class="list-group-item list-group-item-action active" aria-current="true">
The current button
</button>
<button type="button" class="list-group-item list-group-item-action">A second item</button>
<button type="button" class="list-group-item list-group-item-action">A third button item</button>
<button type="button" class="list-group-item list-group-item-action">A fourth button item</button>
<button type="button" class="list-group-item list-group-item-action" disabled>A disabled button item</button>
</div>
移除边框及圆角
加入.list-group-flush来移除部分边框及圆角,以在父容器中(如:卡片)产生边缘贴齐的列表群组。
- An item
- A second item
- A third item
- A fourth item
- And a fifth one
<ul class="list-group list-group-flush">
<li class="list-group-item">An item</li>
<li class="list-group-item">A second item</li>
<li class="list-group-item">A third item</li>
<li class="list-group-item">A fourth item</li>
<li class="list-group-item">And a fifth one</li>
</ul>
编号
添加.list group numbered修饰符类(并可选地使用ol元素)以选择编号的列表组项。数字是通过CSS生成的(与ol的默认浏览器样式相反),以便更好地放置在列表组项目中,并允许更好的自定义。
数字由ol上的counter reset生成,然后在li上用 ::before
元素设置样式并放置在counter increment和content中。
- Cras justo odio
- Cras justo odio
- Cras justo odio
<ol class="list-group list-group-numbered">
<li class="list-group-item">Cras justo odio</li>
<li class="list-group-item">Cras justo odio</li>
<li class="list-group-item">Cras justo odio</li>
</ol>
这些对自定义内容也很有用。
-
SubheadingCras justo odio
-
SubheadingCras justo odio
-
SubheadingCras justo odio
<ol class="list-group list-group-numbered">
<li class="list-group-item d-flex justify-content-between align-items-start">
<div class="ms-2 me-auto">
<div class="fw-bold">Subheading</div>
Cras justo odio
</div>
<span class="badge bg-primary rounded-pill">14</span>
</li>
<li class="list-group-item d-flex justify-content-between align-items-start">
<div class="ms-2 me-auto">
<div class="fw-bold">Subheading</div>
Cras justo odio
</div>
<span class="badge bg-primary rounded-pill">14</span>
</li>
<li class="list-group-item d-flex justify-content-between align-items-start">
<div class="ms-2 me-auto">
<div class="fw-bold">Subheading</div>
Cras justo odio
</div>
<span class="badge bg-primary rounded-pill">14</span>
</li>
</ol>
水平
加入.list-group-horizontal可以将列表群组在所有断点的排版从垂直更改为水平。或者选择加入响应式变化.list-group-horizontal-{sm|md|lg|xl|xxl},使列表群组从该断点的最小min-width开始水平放置。目前水平列表群组不能与Flush列表群组合并使用。
进阶应用:想要一个水平、等宽的列表群组吗?将.flex-fill加入到每个列表群组项目即可。
- An item
- A second item
- A third item
- An item
- A second item
- A third item
- An item
- A second item
- A third item
- An item
- A second item
- A third item
- An item
- A second item
- A third item
- An item
- A second item
- A third item
<ul class="list-group list-group-horizontal">
<li class="list-group-item">An item</li>
<li class="list-group-item">A second item</li>
<li class="list-group-item">A third item</li>
</ul>
<ul class="list-group list-group-horizontal-sm">
<li class="list-group-item">An item</li>
<li class="list-group-item">A second item</li>
<li class="list-group-item">A third item</li>
</ul>
<ul class="list-group list-group-horizontal-md">
<li class="list-group-item">An item</li>
<li class="list-group-item">A second item</li>
<li class="list-group-item">A third item</li>
</ul>
<ul class="list-group list-group-horizontal-lg">
<li class="list-group-item">An item</li>
<li class="list-group-item">A second item</li>
<li class="list-group-item">A third item</li>
</ul>
<ul class="list-group list-group-horizontal-xl">
<li class="list-group-item">An item</li>
<li class="list-group-item">A second item</li>
<li class="list-group-item">A third item</li>
</ul>
<ul class="list-group list-group-horizontal-xxl">
<li class="list-group-item">An item</li>
<li class="list-group-item">A second item</li>
<li class="list-group-item">A third item</li>
</ul>
背景和颜色
使用情境式Class来设计具有状态背景和颜色的列表项目。
- A simple default list group item
- A simple primary list group item
- A simple secondary list group item
- A simple success list group item
- A simple danger list group item
- A simple warning list group item
- A simple info list group item
- A simple light list group item
- A simple dark list group item
<ul class="list-group">
<li class="list-group-item">A simple default list group item</li>
<li class="list-group-item list-group-item-primary">A simple primary list group item</li>
<li class="list-group-item list-group-item-secondary">A simple secondary list group item</li>
<li class="list-group-item list-group-item-success">A simple success list group item</li>
<li class="list-group-item list-group-item-danger">A simple danger list group item</li>
<li class="list-group-item list-group-item-warning">A simple warning list group item</li>
<li class="list-group-item list-group-item-info">A simple info list group item</li>
<li class="list-group-item list-group-item-light">A simple light list group item</li>
<li class="list-group-item list-group-item-dark">A simple dark list group item</li>
</ul>
情境式Class也可用于.list组项操作。请注意,这里添加了上一个示例中没有的悬停样式。还支持.active状态;应用它以指示情境式列表组项上的活动选择。
<div class="list-group">
<a href="#" class="list-group-item list-group-item-action">A simple default list group item</a>
<a href="#" class="list-group-item list-group-item-action list-group-item-primary">A simple primary list group item</a>
<a href="#" class="list-group-item list-group-item-action list-group-item-secondary">A simple secondary list group item</a>
<a href="#" class="list-group-item list-group-item-action list-group-item-success">A simple success list group item</a>
<a href="#" class="list-group-item list-group-item-action list-group-item-danger">A simple danger list group item</a>
<a href="#" class="list-group-item list-group-item-action list-group-item-warning">A simple warning list group item</a>
<a href="#" class="list-group-item list-group-item-action list-group-item-info">A simple info list group item</a>
<a href="#" class="list-group-item list-group-item-action list-group-item-light">A simple light list group item</a>
<a href="#" class="list-group-item list-group-item-action list-group-item-dark">A simple dark list group item</a>
</div>
Conveying meaning to assistive technologies
Using color to add meaning only provides a visual indication, which will not be conveyed to users of
assistive
technologies – such as screen readers. Ensure that information denoted by the color is either obvious from the
content itself (e.g. the visible text), or is included through alternative means, such as additional text
hidden
with the .visually-hidden
class.
带徽章
透过某些通用类别,向任何列表项目添加标签以显示未读计数、活动等。
- A list item 14
- A second list item 2
- A third list item 1
<ul class="list-group">
<li class="list-group-item d-flex justify-content-between align-items-center">
A list item
<span class="badge bg-primary rounded-pill">14</span>
</li>
<li class="list-group-item d-flex justify-content-between align-items-center">
A second list item
<span class="badge bg-primary rounded-pill">2</span>
</li>
<li class="list-group-item d-flex justify-content-between align-items-center">
A third list item
<span class="badge bg-primary rounded-pill">1</span>
</li>
</ul>
自定义内容
透过flexbox通用类别,几乎任何的HTML都能加入到项目内,如以下的列表群组连接。
List group item heading
3 days agoSome placeholder content in a paragraph.
And some small print.List group item heading
3 days agoSome placeholder content in a paragraph.
And some muted small print.List group item heading
3 days agoSome placeholder content in a paragraph.
And some muted small print.<div class="list-group">
<a href="#" class="list-group-item list-group-item-action active" aria-current="true">
<div class="d-flex w-100 justify-content-between">
<h5 class="mb-1">List group item heading</h5>
<small>3 days ago</small>
</div>
<p class="mb-1">Some placeholder content in a paragraph.</p>
<small>And some small print.</small>
</a>
<a href="#" class="list-group-item list-group-item-action">
<div class="d-flex w-100 justify-content-between">
<h5 class="mb-1">List group item heading</h5>
<small class="text-muted">3 days ago</small>
</div>
<p class="mb-1">Some placeholder content in a paragraph.</p>
<small class="text-muted">And some muted small print.</small>
</a>
<a href="#" class="list-group-item list-group-item-action">
<div class="d-flex w-100 justify-content-between">
<h5 class="mb-1">List group item heading</h5>
<small class="text-muted">3 days ago</small>
</div>
<p class="mb-1">Some placeholder content in a paragraph.</p>
<small class="text-muted">And some muted small print.</small>
</a>
</div>
复选框和单项按钮
将Bootstrap的复选框与单选框放在列表群组中,并依据需要进行自定义。您可以在不使用label的情况下使用它们,但请记住要包含aria-label以及必要的内容。
- First checkbox
- Second checkbox
- Third checkbox
- Fourth checkbox
- Fifth checkbox
<ul class="list-group">
<li class="list-group-item">
<input class="form-check-input me-1" type="checkbox" value="" aria-label="...">
First checkbox
</li>
<li class="list-group-item">
<input class="form-check-input me-1" type="checkbox" value="" aria-label="...">
Second checkbox
</li>
<li class="list-group-item">
<input class="form-check-input me-1" type="checkbox" value="" aria-label="...">
Third checkbox
</li>
<li class="list-group-item">
<input class="form-check-input me-1" type="checkbox" value="" aria-label="...">
Fourth checkbox
</li>
<li class="list-group-item">
<input class="form-check-input me-1" type="checkbox" value="" aria-label="...">
Fifth checkbox
</li>
</ul>
除此之外,如果您希望将label作为.list-group-item使用以创造较大的点击区域,这么做是可以的。
<div class="list-group">
<label class="list-group-item">
<input class="form-check-input me-1" type="checkbox" value="">
First checkbox
</label>
<label class="list-group-item">
<input class="form-check-input me-1" type="checkbox" value="">
Second checkbox
</label>
<label class="list-group-item">
<input class="form-check-input me-1" type="checkbox" value="">
Third checkbox
</label>
<label class="list-group-item">
<input class="form-check-input me-1" type="checkbox" value="">
Fourth checkbox
</label>
<label class="list-group-item">
<input class="form-check-input me-1" type="checkbox" value="">
Fifth checkbox
</label>
</div>
Sass
Variables
$list-group-color: $gray-900;
$list-group-bg: $white;
$list-group-border-color: rgba($black, .125);
$list-group-border-width: $border-width;
$list-group-border-radius: $border-radius;
$list-group-item-padding-y: $spacer / 2;
$list-group-item-padding-x: $spacer;
$list-group-item-bg-scale: -80%;
$list-group-item-color-scale: 40%;
$list-group-hover-bg: $gray-100;
$list-group-active-color: $component-active-color;
$list-group-active-bg: $component-active-bg;
$list-group-active-border-color: $list-group-active-bg;
$list-group-disabled-color: $gray-600;
$list-group-disabled-bg: $list-group-bg;
$list-group-action-color: $gray-700;
$list-group-action-hover-color: $list-group-action-color;
$list-group-action-active-color: $body-color;
$list-group-action-active-bg: $gray-200;
Mixins
Used in combination with $theme-colors
to generate the contextual
variant classes for .list-group-item
s.
@mixin list-group-item-variant($state, $background, $color) {
.list-group-item-#{$state} {
color: $color;
background-color: $background;
&.list-group-item-action {
&:hover,
&:focus {
color: $color;
background-color: shade-color($background, 10%);
}
&.active {
color: $white;
background-color: $color;
border-color: $color;
}
}
}
}
Loop
Loop that generates the modifier classes with the list-group-item-variant()
mixin.
// List group contextual variants
//
// Add modifier classes to change text and background color on individual items.
// Organizationally, this must come after the `:hover` states.
@each $state, $value in $theme-colors {
$list-group-background: shift-color($value, $list-group-item-bg-scale);
$list-group-color: shift-color($value, $list-group-item-color-scale);
@if (contrast-ratio($list-group-background, $list-group-color) < $min-contrast-ratio) {
$list-group-color: mix($value, color-contrast($list-group-background), abs($alert-color-scale));
}
@include list-group-item-variant($state, $list-group-background, $list-group-color);
}
JavaScript 行为
使用JavaScript插件-单独加入或通过编译的bootstrap.js档-来扩展我们的列表群组,以创建内容的切换菜单。
<div class="row">
<div class="col-4">
<div class="list-group" id="list-tab" role="tablist">
<a class="list-group-item list-group-item-action active" id="list-home-list" data-bs-toggle="list" href="#list-home" role="tab" aria-controls="home">Home</a>
<a class="list-group-item list-group-item-action" id="list-profile-list" data-bs-toggle="list" href="#list-profile" role="tab" aria-controls="profile">Profile</a>
<a class="list-group-item list-group-item-action" id="list-messages-list" data-bs-toggle="list" href="#list-messages" role="tab" aria-controls="messages">Messages</a>
<a class="list-group-item list-group-item-action" id="list-settings-list" data-bs-toggle="list" href="#list-settings" role="tab" aria-controls="settings">Settings</a>
</div>
</div>
<div class="col-8">
<div class="tab-content" id="nav-tabContent">
<div class="tab-pane fade show active" id="list-home" role="tabpanel" aria-labelledby="list-home-list">...</div>
<div class="tab-pane fade" id="list-profile" role="tabpanel" aria-labelledby="list-profile-list">...</div>
<div class="tab-pane fade" id="list-messages" role="tabpanel" aria-labelledby="list-messages-list">...</div>
<div class="tab-pane fade" id="list-settings" role="tabpanel" aria-labelledby="list-settings-list">...</div>
</div>
</div>
</div>
使用数据属性
可以指定data-bs-toggle=“list”或元素来启动列表群组的导航,而无需编写任何JavaScript。在.list-group-item上使用这些数据属性。
<div role="tabpanel">
<!-- List group -->
<div class="list-group" id="myList" role="tablist">
<a class="list-group-item list-group-item-action active" data-bs-toggle="list" href="#home" role="tab">Home</a>
<a class="list-group-item list-group-item-action" data-bs-toggle="list" href="#profile" role="tab">Profile</a>
<a class="list-group-item list-group-item-action" data-bs-toggle="list" href="#messages" role="tab">Messages</a>
<a class="list-group-item list-group-item-action" data-bs-toggle="list" href="#settings" role="tab">Settings</a>
</div>
<!-- Tab panes -->
<div class="tab-content">
<div class="tab-pane active" id="home" role="tabpanel">...</div>
<div class="tab-pane" id="profile" role="tabpanel">...</div>
<div class="tab-pane" id="messages" role="tabpanel">...</div>
<div class="tab-pane" id="settings" role="tabpanel">...</div>
</div>
</div>
通过JavaScript
通过JavaScript启用可选的列表项目(每个列表项目需要单独启动):
var triggerTabList = [].slice.call(document.querySelectorAll('#myTab a'))
triggerTabList.forEach(function (triggerEl) {
var tabTrigger = new bootstrap.Tab(triggerEl)
triggerEl.addEventListener('click', function (event) {
event.preventDefault()
tabTrigger.show()
})
})
您可以透过以下几种方式启动个别列表项目:
var triggerEl = document.querySelector('#myTab a[href="#profile"]')
bootstrap.Tab.getInstance(triggerEl).show() // Select tab by name
var triggerFirstTabEl = document.querySelector('#myTab li:first-child a')
bootstrap.Tab.getInstance(triggerFirstTabEl).show() // Select first tab
淡入效果
要使页签面板淡入淡出,请将.fade添加到每个.tab-pane中。第一个页签面板还必须具有.show使初始内容可见。
<div class="tab-content">
<div class="tab-pane fade show active" id="home" role="tabpanel">...</div>
<div class="tab-pane fade" id="profile" role="tabpanel">...</div>
<div class="tab-pane fade" id="messages" role="tabpanel">...</div>
<div class="tab-pane fade" id="settings" role="tabpanel">...</div>
</div>
方法
构造器
启动列表项目元素和内容容器。页签应该有一个data-bs-target或href定位在DOM中的一个容器节点。
<div class="list-group" id="myList" role="tablist">
<a class="list-group-item list-group-item-action active" data-bs-toggle="list" href="#home" role="tab">Home</a>
<a class="list-group-item list-group-item-action" data-bs-toggle="list" href="#profile" role="tab">Profile</a>
<a class="list-group-item list-group-item-action" data-bs-toggle="list" href="#messages" role="tab">Messages</a>
<a class="list-group-item list-group-item-action" data-bs-toggle="list" href="#settings" role="tab">Settings</a>
</div>
<div class="tab-content">
<div class="tab-pane active" id="home" role="tabpanel">...</div>
<div class="tab-pane" id="profile" role="tabpanel">...</div>
<div class="tab-pane" id="messages" role="tabpanel">...</div>
<div class="tab-pane" id="settings" role="tabpanel">...</div>
</div>
<script>
var firstTabEl = document.querySelector('#myTab a:last-child')
var firstTab = new bootstrap.Tab(firstTabEl)
firstTab.show()
</script>
显示
选择给定的列表项目并显示其关联的pane。而先前选择的任何其他列表项目将被取消,并使其关联的pane隐藏。在Tab pane显示之前回传给调用者(例如,在shown.bs.tab事件发生之前)。
var someListItemEl = document.querySelector('#someListItem')
var tab = new bootstrap.Tab(someListItemEl)
tab.show()
销毁
销毁元素的选项卡。
获取实例
Static方法可以使您获取与DOM元素相关联的实例。
var triggerEl = document.querySelector('#trigger')
var tab = bootstrap.Tab.getInstance(triggerEl) // Returns a Bootstrap tab instance
事件
当显示新分页时,事件按以下顺序触发:
hide.bs.tab
(在当前启用的页签上)show.bs.tab
(在准备启用的页签上)hidden.bs.tab
(在先前启用的页签上,与hide.bs.tab事件相同))shown.bs.tab
(在刚刚显示的页签上,与show.bs.tab事件相同)
如果没有选项启用,则hide.bs.tab和hidden.bs.tab事件将不被触发。
Event type | Description |
---|---|
show.bs.tab |
这个事件因页签显示而触发,但是会在新页签被显示之前结束。使用event.target和event.relatedTarget将目前与先前启用的页签(如果可用)的作为目标。 |
shown.bs.tab |
这个事件在页签显示后触发。使用event.target和event.relatedTarget来分别定位启用中和刚刚启用的页签。 |
hide.bs.tab |
新的页签要显示(先前的启用页签将被隐藏)时,此事将触发。使用event.target和event.relatedTarget分别定位先前启用和即将启用的页签。 |
hidden.bs.tab |
新的选项显示后(因此先前启用的选项将隐藏),此事件将触发。使用event.target和event.relatedTarget分别定位先前启用的页签和新启用的页签。 |
var tabEl = document.querySelector('a[data-bs-toggle="list"]')
tabEl.addEventListener('shown.bs.tab', function (event) {
event.target // newly activated tab
event.relatedTarget // previous active tab
})