Bootstrap Fold plug-in


May 04, 2021 09:00 Bootstrap


Table of contents


Bootstrap Fold plug-in

The Collapse plug-in makes it easy to fold up the page area. Whether you use it to create collapsed navigation or content panels, it allows many content options.

Bootstrap Fold plug-in If you want to refer to the functionality of the plug-in separately, you need to refer .js. T ransition plug-ins also need to be referenced in your Bootstrap release. Or, as mentioned in the Bootstrap plug-in overview chapter, you can refer to bootstrap.js or the compressed version of Bootstrap.min .js.

You can use the Collapse plug-in:

  • Create a collapsible grouping or folding panel, as follows:

    <!DOCTYPE html><html><head>
       <title>Bootstrap 实例 - 折叠面板</title>
       <link href="//cdn.bootcss.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="stylesheet">
       <script src="//cdn.bootcss.com/jquery/2.1.1/jquery.min.js" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ></script>
       <script src="//cdn.bootcss.com/bootstrap/3.3.6/js/bootstrap.min.js" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ></script></head><body><div class="panel-group" id="accordion">
      <div class="panel panel-default">
        <div class="panel-heading">
          <h4 class="panel-title">
            <a data-toggle="collapse" data-parent="#accordion" 
              href="#collapseOne">
              点击我进行展开,再次点击我进行折叠。第 1 部分        </a>
          </h4>
        </div>
        <div id="collapseOne" class="panel-collapse collapse in">
          <div class="panel-body">
            Nihil anim keffiyeh helvetica, craft beer labore wes anderson 
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        </div>
      </div>
      <div class="panel panel-default">
        <div class="panel-heading">
          <h4 class="panel-title">
            <a data-toggle="collapse" data-parent="#accordion" 
              href="#collapseTwo">
              点击我进行展开,再次点击我进行折叠。第 2 部分        </a>
          </h4>
        </div>
        <div id="collapseTwo" class="panel-collapse collapse">
          <div class="panel-body">
            Nihil anim keffiyeh helvetica, craft beer labore wes anderson 
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        </div>
      </div>
      <div class="panel panel-default">
        <div class="panel-heading">
          <h4 class="panel-title">
            <a data-toggle="collapse" data-parent="#accordion" 
              href="#collapseThree">
              点击我进行展开,再次点击我进行折叠。第 3 部分        </a>
          </h4>
        </div>
        <div id="collapseThree" class="panel-collapse collapse">
          <div class="panel-body">
            Nihil anim keffiyeh helvetica, craft beer labore wes anderson 
            cred nesciunt sapiente ea proident. Ad vegan excepteur butcher 
            vice lomo.      </div>
        </div>
      </div></div></body></html>
  • The result is as follows:

    Bootstrap Fold plug-in
  1. Data-toggle"collapse" is added to the link to the component you want to expand or collapse.

  2. The href or data-target property is added to the parent component, and its value is the id of the child component.

  3. The data-parent property adds the id of the collapsed panel to the link of the component to be expanded or collapsed.

  • Create a simple collapsible component without the accordion tag, as follows:

    <!DOCTYPE html><html><head>
       <title>Bootstrap 实例 - 简单的可折叠组件</title>
       <link href="//cdn.bootcss.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="stylesheet">
       <script src="//cdn.bootcss.com/jquery/2.1.1/jquery.min.js" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ></script>
       <script src="//cdn.bootcss.com/bootstrap/3.3.6/js/bootstrap.min.js" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ></script></head><body><button type="button" class="btn btn-primary" data-toggle="collapse" 
       data-target="#demo">
       简单的可折叠组件</button><div id="demo" class="collapse in">
      Nihil anim keffiyeh helvetica, craft beer labore wes anderson 
      cred nesciunt sapiente ea proident. Ad vegan excepteur butcher 
      vice lomo.</div></body></html>
    • The result is as follows:

      Bootstrap Fold plug-in

      As you can see in the example, we created a collapsible component, and unlike the collapse panel, we didn't add the property data-parent.

    Usage

    The following table lists the classes that collapse plug-ins use to handle heavy scaling:

    Class 描述 实例
    .collapse 隐藏内容。 尝试一下
    .collapse.in 显示内容。 尝试一下
    .collapsing 当过渡效果开始时被添加,当过渡效果完成时被移除。

    You can use the Collapse plug-in in two ways:

    • Control of collapsible elements is automatically assigned by adding data-toggle"collapse" and data-target to the element through the data property: rget property accepts a CSS selector and applies a collapse effect to it. B e sure to add class .collapse to the collapsible element. If you want it to be turned on by default, add an additional class .in.

      To add a group management similar to a collapsed panel to a collapsible control, add the data property data-parent #selector.

    • With JavaScript: The collapse method can be activated with JavaScript, as follows:

      $('.collapse').collapse()

    Options

    Some options are passed through the data property or JavaScript. The following table lists these options:

    选项名称 类型/默认值 Data 属性名称 描述
    parent selector
    默认值:false
    data-parent 如果提供了一个选择器,当可折叠项目显示时,指定父元素下的所有可折叠的元素将被关闭。这与创痛的折叠面板(accordion)的行为类似 - 这依赖于 accordion-group 类。
    toggle boolean
    默认值:true
    data-toggle 切换调用可折叠元素。

    Method

    Here are some useful ways to collapse plug-ins:

    方法 描述 实例
    Options: .collapse(options) 激活内容为可折叠元素。接受一个可选的 options 对象。
    $('#identifier').collapse({
      toggle: false})
    Toggle: .collapse('toggle') 切换显示/隐藏可折叠元素。
    $('#identifier').collapse('toggle')
    Show: .collapse('show') 显示可折叠元素。
    $('#identifier').collapse('show')
    Hide: .collapse('hide') 隐藏可折叠元素。
    $('#identifier').collapse('hide')

    Instance

    The following example demonstrates the use of the method:

    <!DOCTYPE html><html><head>
       <title>Bootstrap 实例 - 折叠(Collapse)插件方法</title>
       <link href="//cdn.bootcss.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="stylesheet">
       <script src="//cdn.bootcss.com/jquery/2.1.1/jquery.min.js" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ></script>
       <script src="//cdn.bootcss.com/bootstrap/3.3.6/js/bootstrap.min.js" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ></script></head><body><div class="panel-group" id="accordion">
       <div class="panel panel-default">
          <div class="panel-heading">
             <h4 class="panel-title">
                <a data-toggle="collapse" data-parent="#accordion" 
                   href="#collapseOne">
                   点击我进行展开,再次点击我进行折叠。第 1 部分--hide 方法            </a>
             </h4>
          </div>
          <div id="collapseOne" class="panel-collapse collapse in">
             <div class="panel-body">
                Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred 
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                lomo.         </div>
          </div>
       </div>
       <div class="panel panel-success">
          <div class="panel-heading">
             <h4 class="panel-title">
                <a data-toggle="collapse" data-parent="#accordion" 
                   href="#collapseTwo">
                   点击我进行展开,再次点击我进行折叠。第 2 部分--show 方法            </a>
             </h4>
          </div>
          <div id="collapseTwo" class="panel-collapse collapse">
             <div class="panel-body">
                Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred 
                nesciunt sapiente ea proident. Ad vegan excepteur butcher vice 
                lomo.         </div>
          </div>
       </div>
       <div class="panel panel-info">
          <div class="panel-heading">
             <h4 class="panel-title">
                <a data-toggle="collapse" data-parent="#accordion" 
                   href="#collapseThree">
                   点击我进行展开,再次点击我进行折叠。第 3 部分--toggle 方法            </a>
             </h4>
          </div>
          <div id="collapseThree" class="panel-collapse collapse">
             <div class="panel-body">
                Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred 
                nesciunt sapiente ea proident. Ad vegan excepteur butcher vice 
                lomo.         </div>
          </div>
       </div>
       <div class="panel panel-warning">
          <div class="panel-heading">
             <h4 class="panel-title">
                <a data-toggle="collapse" data-parent="#accordion" 
                   href="#collapseFour">
                   点击我进行展开,再次点击我进行折叠。第 4 部分--options 方法            </a>
             </h4>
          </div>
          <div id="collapseFour" class="panel-collapse collapse">
             <div class="panel-body">
                Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred 
                nesciunt sapiente ea proident. Ad vegan excepteur butcher vice 
                lomo.         </div>
          </div>
       </div></div><script type="text/javascript">
       $(function ({ $('#collapseFour').collapse({
          toggle: false
       })});
       $(function ({ $('#collapseTwo').collapse('show')});
       $(function ({ $('#collapseThree').collapse('toggle')});
       $(function ({ $('#collapseOne').collapse('hide')});</script>  </body></html>

    The result is as follows:

    Bootstrap Fold plug-in

    Event

    The following table lists the events to use in the Collapse plug-in. These events can be used as hooks in functions.

    事件 描述 实例
    show.bs.collapse 在调用 show 方法后触发该事件。
    $('#identifier').on('show.bs.collapse', function () {
      // 执行一些动作...})
    shown.bs.collapse 当折叠元素对用户可见时触发该事件(将等待 CSS 过渡效果完成)。
    $('#identifier').on('shown.bs.collapse', function () {
      // 执行一些动作...})
    hide.bs.collapse 当调用 hide 实例方法时立即触发该事件。
    $('#identifier').on('hide.bs.collapse', function () {
      // 执行一些动作...})
    hidden.bs.collapse 当折叠元素对用户隐藏时触发该事件(将等待 CSS 过渡效果完成)。
    $('#identifier').on('hidden.bs.collapse', function () {
      // 执行一些动作...})

    Instance

    The following example demonstrates the use of events:

    <!DOCTYPE html><html><head>
       <title>Bootstrap 实例 - 折叠(Collapse)插件事件</title>
       <link href="//cdn.bootcss.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="external nofollow" target="_blank"  rel="stylesheet">
       <script src="//cdn.bootcss.com/jquery/2.1.1/jquery.min.js" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ></script>
       <script src="//cdn.bootcss.com/bootstrap/3.3.6/js/bootstrap.min.js" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" ></script></head><body><div class="panel-group" id="accordion">
       <div class="panel panel-info">
          <div class="panel-heading">
             <h4 class="panel-title">
                <a data-toggle="collapse" data-parent="#accordion" 
                   href="#collapseexample">
                   点击我进行展开,再次点击我进行折叠。--shown 事件            </a>
             </h4>
          </div>
          <div id="collapseexample" class="panel-collapse collapse">
             <div class="panel-body">
                Nihil anim keffiyeh helvetica, craft beer labore wes anderson 
                cred nesciunt sapiente ea proident. 
                Ad vegan excepteur butcher vice lomo.         </div>
          </div>
       </div></div><script type="text/javascript">
       $(function ({ 
          $('#collapseexample').on('show.bs.collapse'function ({
             alert('嘿,当您展开时会提示本警告');})
       });</script> </body></html>

    The result is as follows:

    Bootstrap Fold plug-in

    Extended reading

    Collapse collapses the content block plug-in