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在Bootstrap 2.3中更改折叠图标，而不是在Bootstrap 3中。

javascriptjquerycsshtmltwitter-bootstrap
3
我正在使用 Bootstrap 2.3 中的 折叠组件。我需要更改折叠时的图标，即在展开和折叠时更改图标。在互联网上，一些关于 Bootstrap 3 的显示和隐藏函数已经出现了，但我需要 Bootstrap 2.3 的版本。请告诉我如何解决这个问题。

enter image description here

.arrow-down{
    width: 12px;
    height: 12px;
    background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAMCAYAAABWdVznAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAAAHwAAAB8ARUP7eQAAAAYdEVYdFNvZnR3YXJlAHBhaW50Lm5ldCA0LjAuNWWFMmUAAACISURBVChTvc+xCoNAEIThDXkQH8FCYhGwsRLEgJ2lEN81VQg2toIW2qVK7z9RREEtHfjg7liWOTslIZzxeJhgYhU+uOmykwQd3rpEaNEg1cMiFzyh4Rc82BU5fqjxf5xS4AstUwMtmJNBm0r4eKCHhtViMzFUTzSsGkd/W9XbrLGXO9zxeG7MBoKmGaM1wCzfAAAAAElFTkSuQmCC) no-repeat right;
}

.arrow-up{
    width: 16px;
    height: 12px;
    background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAMCAYAAABr5z2BAAAABGdBTUEAALGPC/xhBQAAAAlwSFlzAAAbrQAAG60BIeRSlQAAABh0RVh0U29mdHdhcmUAcGFpbnQubmV0IDQuMC41ZYUyZQAAANpJREFUOE9jGJzAwsJCyM7OztPMzIwPKkQ8sLe353F2dl7v6ur6BEjPBmI1qBRxAGgAh6OjY4m7u/t/oCF/gQacBtJuUGmiAQvQC7YuLi5fgZr/Ozk5fQCyC6ByxANLS0sxoAsuAzX/dXNz+w9kzwKGDydUmijADPSSA9AVv4CG/Ae5CIhjoXL4gY2NjSjQxlKghtdQb5wGGhYClcYPgBotgQG5BqjxN9TpM4CaNaDS+AEoDQA13ABpBNr+G2hQkpWVFS9UmijABDTAEGj7DqAhIFuZIMLYAAMDAPuUQ9EUeG3QAAAAAElFTkSuQmCC) no-repeat right;
}

.accordion-heading .accordion-toggle{
    width:88%;
}
<link href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.min.css" rel="stylesheet"/>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/js/bootstrap.min.js"></script>

<div class="accordion" id="accordion2">
  <div class="accordion-group">
    <div class="accordion-heading">
      <a class="accordion-toggle arrow-down" data-toggle="collapse" data-parent="#accordion2" href="#collapseOne">
        Collapsible Group Item #1
      </a>
    </div>
    <div id="collapseOne" class="accordion-body collapse in">
      <div class="accordion-inner">
        <p> first table</p>
        <p>First Content</p>
      </div>
    </div>
  </div>
  <div class="accordion-group">
    <div class="accordion-heading">
      <a class="accordion-toggle arrow-up" data-toggle="collapse" data-parent="#accordion2" href="#collapseTwo">
        Collapsible Group Item #2
      </a>
    </div>
    <div id="collapseTwo" class="accordion-body collapse">
      <div class="accordion-inner">
         <p> second table</p>
        <p>second Content</p>
      </div>
    </div>
  </div>
</div>

我可以看到Bootstrap的JavaScript正在向活动手风琴内容添加“in collapse”类。我认为您需要扩展该JavaScript并向那些.accordion-toggle标签添加一个类。 - alliuca
2个回答
4

更新。是的-第一个纯CSS解决方案不够令人满意。如果你敢加一些javascript，你可以这样做：

$('.accordion-group').on('show', function() {
    $(this).find('.accordion-toggle').removeClass('arrow-down').addClass('arrow-up');
});    
$('.accordion-group').on('hide', function() {
    $(this).find('.accordion-toggle').removeClass('arrow-up').addClass('arrow-down');
});

这段内容是关于IT技术中的Bootstrap折叠功能。它直接使用折叠部分的隐藏 / 显示事件，但没有使用宽度 / 高度，除此之外与OP中的标记类似。

新演示 -> http://jsfiddle.net/4m1u2rb4/

我看到了你的fiddle。在那里，我们遇到了".collapsed"类的问题。当我们显示隐藏部分时，这个类是动态添加的。但第一次没有折叠。 - Rayudu
@Rayudu，是的，当你关闭一个部分时，逻辑很容易混乱，对此我很抱歉。已更新答案，希望你觉得它更好（似乎可以工作）。 - davidkonrad
0

<html >
<head>

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">


<style class="cp-pen-styles">.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: left;        /* 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 */
}
</style>
</head>
<body>
<!-- Latest compiled and minified Bootstrap CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">

<div class="container">

  
  <div class="panel-group" id="accordion">
  <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="#collapseOne" aria-expanded="false">
          Collapsible Group Item #1
        </a>
      </h4>
    </div>
    <div id="collapseOne" class="panel-collapse collapse" aria-expanded="false" style="height: 0px;">
      <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" aria-expanded="false">
          Collapsible Group Item #2
        </a>
      </h4>
    </div>
    <div id="collapseTwo" class="panel-collapse collapse" aria-expanded="false" style="height: 0px;">
      <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" aria-expanded="false">
          Collapsible Group Item #3
        </a>
      </h4>
    </div>
    <div id="collapseThree" class="panel-collapse collapse" aria-expanded="false" style="height: 0px;">
      <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>
  
  
</div> <!-- end container -->

<!-- Latest compiled and minified JavaScript -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>

</body></html>

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