Question

使用Bootstrap 3 Javascript examples page for Collapse中的核心示例，我已经能够使用雪佛龙图标显示崩溃状态。

我的工作正在使用：

$('#accordion .accordion-toggle').click(function (e) {
    var chevState = $(e.target).siblings("i.indicator").toggleClass('glyphicon-chevron-down glyphicon-chevron-up');
    $("i.indicator").not(chevState).removeClass("glyphicon-chevron-down").addClass("glyphicon-chevron-up");
});

这有效（未在所有浏览器中进行过全面测试），但我想知道是否有更优雅的解决方案？

理想情况下我想使用核心功能，但我不确定如何用它来实现相同的结果。

$('#accordion').on('hidden.bs.collapse', function () {
    //do something...
})

以下是 jsfiddle 中的工作版本。

Answer 1

对于以下HTML（来自Bootstrap 3 examples）：

.panel-heading .accordion-toggle:after {
    /* symbol for "opening" panels */
    font-family: 'Glyphicons Halflings';  /* essential for enabling glyphicon */
    content: "\e114";    /* adjust as needed, taken from bootstrap.css */
    float: right;        /* adjust as needed */
    color: grey;         /* adjust as needed */
}
.panel-heading .accordion-toggle.collapsed:after {
    /* symbol for "collapsed" panels */
    content: "\e080";    /* adjust as needed, taken from bootstrap.css */
}

<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
<script src="https://code.jquery.com/jquery-1.11.1.min.js" type="text/javascript" ></script>
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" type="text/javascript" ></script>

<div class="panel-group" id="accordion">
  <div class="panel panel-default">
    <div class="panel-heading">
      <h4 class="panel-title">
        <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion" href="#collapseOne">
          Collapsible Group Item #1
        </a>
      </h4>
    </div>
    <div id="collapseOne" class="panel-collapse collapse in">
      <div class="panel-body">
        Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
      </div>
    </div>
  </div>
  <div class="panel panel-default">
    <div class="panel-heading">
      <h4 class="panel-title">
        <a class="accordion-toggle collapsed" data-toggle="collapse" data-parent="#accordion" href="#collapseTwo">
          Collapsible Group Item #2
        </a>
      </h4>
    </div>
    <div id="collapseTwo" class="panel-collapse collapse">
      <div class="panel-body">
        Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
      </div>
    </div>
  </div>
  <div class="panel panel-default">
    <div class="panel-heading">
      <h4 class="panel-title">
        <a class="accordion-toggle collapsed" data-toggle="collapse" data-parent="#accordion" href="#collapseThree">
          Collapsible Group Item #3
        </a>
      </h4>
    </div>
    <div id="collapseThree" class="panel-collapse collapse">
      <div class="panel-body">
        Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
      </div>
    </div>
  </div>
</div>

视觉效果：

bootstrap3 chevron icon on accordion

Answer 2

你可以使用这种代码：

function toggleChevron(e) {
    $(e.target)
        .prev('.panel-heading')
        .find('i.indicator')
        .toggleClass('glyphicon-chevron-down glyphicon-chevron-up');
}
$('#accordion').on('hidden.bs.collapse', toggleChevron);
$('#accordion').on('shown.bs.collapse', toggleChevron);

=＆GT;工作JsFiddle

Answer 3

为了改善最常见的答案，你们中的一些人可能已经注意到页面的初始载荷上的V形臂指向同一个方向。这可以通过添加类＆＃34;折叠＆＃34;要加载折叠的元素。

<div class="panel-group" id="accordion">
  <div class="panel panel-default">
    <div class="panel-heading">
      <h4 class="panel-title">
        <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion" href="#collapseOne">
          Collapsible Group Item #1
        </a>
      </h4>
    </div>
    <div id="collapseOne" class="panel-collapse collapse in">
      <div class="panel-body">
        Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
      </div>
    </div>
  </div>
  <div class="panel panel-default">
    <div class="panel-heading">
      <h4 class="panel-title">
        <a class="accordion-toggle collapsed" data-toggle="collapse" data-parent="#accordion" href="#collapseTwo">
          Collapsible Group Item #2
        </a>
      </h4>
    </div>
    <div id="collapseTwo" class="panel-collapse collapse">
      <div class="panel-body">
        Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
      </div>
    </div>
  </div>
  <div class="panel panel-default">
    <div class="panel-heading">
      <h4 class="panel-title">
        <a class="accordion-toggle collapsed" data-toggle="collapse" data-parent="#accordion" href="#collapseThree">
          Collapsible Group Item #3
        </a>
      </h4>
    </div>
    <div id="collapseThree" class="panel-collapse collapse">
      <div class="panel-body">
        Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
      </div>
    </div>
  </div>
</div>

这是一个工作小提琴：http://jsfiddle.net/3gYa3/585/

Answer 4

感谢biggates和Steakpi。作为Dreamonic问题的答案，我做了一些改动，使所有标题可点击（不仅是标题字符串和标签），并从链接下划线。为了强制图标出现在同一行，我在CSS指令的末尾添加了h4。这是修改后的代码：

<div class="panel-group" id="accordion">
  <div class="panel panel-default">
    <div class="panel-heading">      
        <a class="accordion-toggle collapsed" data-toggle="collapse" data-parent="#accordion" href="#collapseOne">
          <h4 class="panel-title">Collapsible Group Item #1</h4>
        </a>      
    </div>
    <div id="collapseOne" class="panel-collapse collapse">
      <div class="panel-body">
        Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
      </div>
    </div>
  </div>
  <div class="panel panel-default">
    <div class="panel-heading">      
        <a class="accordion-toggle collapsed" data-toggle="collapse" data-parent="#accordion" href="#collapseTwo">
          <h4 class="panel-title">Collapsible Group Item #2</h4>
        </a>      
    </div>
    <div id="collapseTwo" class="panel-collapse collapse">
      <div class="panel-body">
        Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
      </div>
    </div>
  </div>
  <div class="panel panel-default">
    <div class="panel-heading">      
        <a class="accordion-toggle collapsed" data-toggle="collapse" data-parent="#accordion" href="#collapseThree">
          <h4 class="panel-title">Collapsible Group Item #3</h4>
        </a>      
    </div>
    <div id="collapseThree" class="panel-collapse collapse">
      <div class="panel-body">
        Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
      </div>
    </div>
  </div>
</div>

修改后的CSS：

.panel-heading .accordion-toggle h4:after {
    /* symbol for "opening" panels */
    font-family: 'Glyphicons Halflings';  
    content: "\e114";    
    float: right;        
    color: grey;        
    overflow: no-display;
}
.panel-heading .accordion-toggle.collapsed h4:after {
    /* symbol for "collapsed" panels */
    content: "\e080";    
}
a.accordion-toggle{
    text-decoration: none;
}

Answer 5

改善Bludream的答案：

你绝对可以使用FontAwesome！

确保包含“collapsed”和“panel-heading”类。直到您单击面板，才会包含“折叠”类，以便包含“折叠”类以显示正确的V形符号（即，折叠时显示V形右侧，打开时显示V形符号）。 / p>

HTML

<div class="panel panel-default">
    <div class="panel-heading collapsed" data-toggle="collapse" data-target="#collapseOrderItems1">Products 1 <i class="chevron fa fa-fw" ></i></div>
    <div class="collapse" id="collapseOrderItems1">
        <p>Lorem ipsum...</p>
    </div>
</div>

CSS

.panel-heading .chevron:after {
    content: "\f078";   
}
.panel-heading.collapsed .chevron:after {
    content: "\f054";   
}

此外，最好创建一个新类而不是使用现有类。

请参阅Codepen，例如：http://codepen.io/anon/pen/PPxOJX

Answer 6

这里有几个纯css帮助程序类，可以让你在html中处理任何类型的切换内容。

它适用于您需要切换的任何元素。无论你的布局是什么，你只需将它放在几个元素中，其中包含.if-collapsed和.if-not-collapsed类在toggle元素中。

唯一的问题是，您必须确保将所需的初始状态设置为切换。如果它最初关闭，则在切换上放置折叠类。

它还需要：not 选择器，它不适用于IE8。

HTML示例：

<a class="btn btn-primary collapsed" data-toggle="collapse" href="#collapseExample">
  <!--You can put any valid html inside these!-->
  <span class="if-collapsed">Open</span>
  <span class="if-not-collapsed">Close</span>
</a>
<div class="collapse" id="collapseExample">
  <div class="well">
    ...
  </div>
</div>

更少版本：

[data-toggle="collapse"] {
    &.collapsed .if-not-collapsed {
         display: none;
    }
    &:not(.collapsed) .if-collapsed {
         display: none;
    }
}

CSS版本：

[data-toggle="collapse"].collapsed .if-not-collapsed {
  display: none;
}
[data-toggle="collapse"]:not(.collapsed) .if-collapsed {
  display: none;
}

Answer 7

工作简单的例子

显示/隐藏身体状况
到达其父家
获取查找图标
更改图标

enter simple

<强> HTML ：

<body>
    <div class="accordion-group">
        <div class="accordion-heading">
            <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion2" href="#jai">Jai</a>
        </div>
        <div id="jai" class="accordion-body collapse in">
            <div>
                <div class="accordion-inner">body content 1</div>
            </div>
        </div>
    </div>
    <div class="accordion-group">
        <div class="accordion-heading">
            <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion2" href="#collapseTwo">jai2</a>
        </div>
        <div id="collapseTwo" class="accordion-body collapse">
            <div>
                <div class="accordion-inner">body content 2</div>
            </div>
        </div>
    </div>
    <div class="accordion-group">
        <div class="accordion-heading">
            <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion2" href="#collapse3">jai3</a>
        </div>
        <div id="collapse3" class="accordion-body collapse">
            <div>
                <div class="accordion-inner">body content 3</div>
            </div>
        </div>
    </div>
</body>

JavaScript

$('div.accordion-body').on('shown', function () {
    $(this).parent("div").find(".icon-chevron-down")
           .removeClass("icon-chevron-down").addClass("icon-chevron-up");
});

$('div.accordion-body').on('hidden', function () {
    $(this).parent("div").find(".icon-chevron-up")
           .removeClass("icon-chevron-up").addClass("icon-chevron-down");
});

Answer 8

我知道这已经很老了，但是由于现在已经是2018年了，我想我会通过简化代码和通过使V形人字形根据是否折叠来增强用户体验来做出更好的答复。我正在使用FontAwesome。这是CSS：

a[data-toggle="collapse"] .rotate {
   -webkit-transition: all 0.2s ease-out;
   -moz-transition: all 0.2s ease-out;
   -ms-transition: all 0.2s ease-out;
   -o-transition: all 0.2s ease-out;
   transition: all 0.2s ease-out;
   -moz-transform: rotate(90deg);
   -ms-transform: rotate(90deg);
   -webkit-transform: rotate(90deg);
   transform: rotate(90deg);
}
a[data-toggle="collapse"].collapsed .rotate {
   -moz-transform: rotate(0deg);
   -ms-transform: rotate(0deg);
   -webkit-transform: rotate(0deg);
   transform: rotate(0deg);
}

这是面板部分的HTML：

  <div class="panel panel-default">
    <div class="panel-heading">
      <h4 class="panel-title">
        <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion" href="#collapseOne">
          Collapsible Group Item #1
          <i class="fa fa-chevron-right pull-right rotate"></i>
        </a>
      </h4>
    </div>
    <div id="collapseOne" class="panel-collapse collapse in">
      <div class="panel-body">
        Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
      </div>
    </div>
  </div>

我使用向右拉的引导带将V形臂一直拉到面板标题的右侧，该标题应为全宽度且响应迅速。 CSS完成所有动画工作，并根据面板是否折叠来旋转人字形。很简单。

Answer 9

或者......你可以放一些这样的风格。

.panel-title a.collapsed {
     background: url(../img/arrow_right.png) center right no-repeat;
}
.panel-title a {
     background: url(../img/arrow_down.png) center right no-repeat;
}

http://codepen.io/anon/pen/GJjrQN

Answer 10

我正在使用字体真棒！并希望面板可折叠

        <div class="panel panel-default">
                <div class="panel-heading" data-toggle="collapse" data-target="#collapseOrderItems"><i class="fa fa-chevron fa-fw" ></i> products</div>

                <div class="collapse in" id="collapseOrderItems">
                            ....
                </div>
        </div>

和css

.panel-heading .fa-chevron:after {
    content: "\f078";   
}
.panel-heading.collapsed .fa-chevron:after {
    content: "\f054";   
}

enter image description here

Answer 11

Angular似乎在这里引起了基于JavaScript的方法的问题（至少是我尝试过的方法）。我在这里找到了这个解决方案：http://www.codeproject.com/Articles/987311/Collapsible-Responsive-Master-Child-Grid-Using-Ang。它的要点是在切换按钮上使用data-ng-click，并使用$scope上下文更改控制器中的按钮。

我想我可以提供更多细节...... 我的按钮被设置为他们崩溃的div的初始状态的glyphicon（glyphicon-chevron-right == collapsed div）。

page.html中：

<div class="title-1">
    <button data-toggle="collapse" data-target="#panel-{{ p_idx }}" class="dropdown-toggle title-btn glyphicon glyphicon-chevron-right" data-ng-click="collapse($event)"></button>
</div>
<div id="panel-{{ p_idx }}" class="collapse sect">
    ...
</div>

controllers.js：

.controller('PageController', function($scope, $rootScope) {
    $scope.collapse = function (event) {
        $(event.target).toggleClass("glyphicon-chevron-down glyphicon-chevron-right");
    };
)

Answer 12

如果您尝试仅使用面板（不是手风琴），请尝试以下代码：

<div class="panel panel-default">
    <div class="panel-heading">
        <h4 class="panel-title">
            <a class="collapse-toggle" data-toggle="collapse" href="#collapseExample" aria-expanded="false" aria-controls="collapseExample">Panel heading with title</a>
        </h4>
    </div>
    <div id="collapseExample" class="panel-collapse collapse in">
        <div class="panel-body">
            Panel content
        </div>
    </div>
</div>

Answer 13

单线。

i.fa.fa-chevron-right.collapse.in { transform: rotate(180deg); }

在此示例中，它用于对可折叠表格行进行分组。您唯一需要做的就是将目标类名称（my-collapse-name）添加到您的图标中：

<tr data-toggle="collapse" data-target=".my-collapse-name">
    <th><i class="fa fa-chevron-right my-collapse-name"></span></th>
    <th>Master Row - Title</th>
</tr>
<tr class="collapse my-collapse-name">
    <td></td>
    <td>Detail Row - Content</td>
</tr>

通过使用<span class='caret my-collapse-name'></span>和span.caret.collapse.in { transform: rotate(90deg); }

，您可以使用Bootstrap的本机插入符号类完成相同的操作

Answer 14

我想要一个纯粹的html方法，因为我想要折叠并展开通过模板动态添加的html！我想出了这个......

https://jsfiddle.net/3mguht2y/1/

var noJavascript = ":)";

对某人可能有用：）

Bootstrap 3使用雪佛龙图标折叠显示状态

14 个答案: