Bootstrap 3 折叠显示状态与雪佛龙图标 [英] Bootstrap 3 Collapse show state with Chevron icon

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本文介绍了Bootstrap 3 折叠显示状态与雪佛龙图标的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

使用来自 Bootstrap 3 Javascript 折叠示例页面的核心示例，我已经能够使用 V 形图标显示折叠状态.

我有这个工作使用:

$('#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，但我不确定如何使用它实现相同的结果.

$('#accordion').on('hidden.bs.collapse', function () {//做点什么...})

这是 jsfiddle 中的工作版本.

解决方案

对于以下 HTML(来自 Bootstrap 3 示例):

.panel-heading .accordion-toggle:after {/* 打开"面板的符号 */font-family: 'Glyphicons Halflings';/* 启用字形必不可少 */内容:e114"；/* 根据需要调整，取自 bootstrap.css */浮动:对；/* 根据需要调整 */颜色:灰色；/* 根据需要调整 */}.panel-heading .accordion-toggle.collapsed:after {/* 折叠"面板的符号 */内容:e080"；/* 根据需要调整，取自 bootstrap.css */}

<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="样式表"/><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">可折叠组项目 #1</a>

<div id="collapseOne" class="panel-collapse 折叠在"><div class="panel-body">Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid.3 wolf Moon offcia aute, non-cupidatat 滑板 dolor 早午餐.食品卡车藜麦 nesciunt labourum eiusmod.早午餐 3 狼月亮 tempor，sunt aliqua 放一只鸟，鱿鱼单一来源的咖啡 nulla 假设 shoreditch 等.Nihil anim keffiyeh helvetica，精酿啤酒，wes anderson cred nesciunt sapiente ea proident.Ad vegan excepteur 屠夫副 lomo.紧身裤 occaecat 精酿啤酒从农场到餐桌，原始牛仔布美学合成器你可能没有听说过它们，可持续 VHS.

<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">可折叠组项目 #2</a>

<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 offcia aute, non-cupidatat 滑板 dolor 早午餐.食品卡车藜麦 nesciunt labourum eiusmod.早午餐 3 狼月亮 tempor，sunt aliqua 放一只鸟，鱿鱼单一来源的咖啡 nulla 假设 shoreditch 等.Nihil anim keffiyeh helvetica，精酿啤酒，wes anderson cred nesciunt sapiente ea proident.Ad vegan excepteur 屠夫副 lomo.紧身裤 occaecat 精酿啤酒从农场到餐桌，原始牛仔布美学合成器你可能没有听说过它们，可持续 VHS.

<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">可折叠组项目 #3</a>

<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 offcia aute, non-cupidatat 滑板 dolor 早午餐.食品卡车藜麦 nesciunt labourum eiusmod.早午餐 3 狼月亮 tempor，sunt aliqua 放一只鸟，鱿鱼单一来源的咖啡 nulla 假设 shoreditch 等.Nihil anim keffiyeh helvetica，精酿啤酒，wes anderson cred nesciunt sapiente ea proident.Ad vegan excepteur 屠夫副 lomo.紧身裤 occaecat 精酿啤酒从农场到餐桌，原始牛仔布美学合成器你可能没有听说过它们，可持续 VHS.

视觉效果:

Using the core example taken from the Bootstrap 3 Javascript examples page for Collapse, I have been able to show the state of collapse using chevron icons.

I have this working using:

$('#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");
});

This works (not fully tested in all browsers), but I'm wondering if there's a more elegant solution to this?

Ideally I'd like to use the core function, but I'm not sure how to achieve the same results with it.

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

Here's a working version in jsfiddle.

解决方案

For the following HTML (from 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>

Visual effect:

这篇关于Bootstrap 3 折叠显示状态与雪佛龙图标的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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