切换bootstrap 3面板时如何为人字形glyphicon设置动画? [英] How to animate the chevron glyphicon when toggling a bootstrap 3 panel?

问题描述

我为包裹在bootstrap 3手风琴中的面板提供了一种可行的解决方案.

I have a working solution for a panel wrapped in an bootstrap 3 accordion.

如何通过90度旋转将人字形从>"更改为"^"的动画?

How can I animate change of the chevron state from ">" to "^" with a 90 degrees rotation?

.panel-heading .accordion-toggle:after {
    font-family: 'Glyphicons Halflings';
    content: "\e114";
    float: right;
    color: grey;
}

.panel-heading .accordion-toggle.collapsed:after {
    content: "\e080";
}

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">


<div class="panel-group" id="accordion">
    <div class="panel panel-default">
        <div class="panel-heading">
            <h3 class="panel-title">
                <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion" href="#importationCollapse">Importation</a>
            </h3>
        </div>
        <div id="importationCollapse" class="panel-collapse collapse in">
            <div class="panel-body">
            <p>Content: blahblah</p>
            </div>
        </div>
    </div>
</div>

我正在寻找一个平滑的旋转，我已经如何更改人字形的状态.

I am looking for a smooth rotation, I already how to change the chevron state.

推荐答案

您可以尝试使用 transition 和 transform:rotation()来完成内容的更改，而无需更改内容.检查以下代码段以供参考.

Instead of changing content you can try with transition and transform: rotate() to get it done. check below snippet for reference.

.panel-heading .accordion-toggle:after {
  font-family: 'Glyphicons Halflings';
  content: "\e114";
  float: right;
  color: grey;
  transition: all 0.5s ease;
}

.panel-heading .accordion-toggle.collapsed:after {
  /*content: "\e080";*/
  transform: rotate(180deg);
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">


<div class="panel-group" id="accordion">
  <div class="panel panel-default">
    <div class="panel-heading">
      <h3 class="panel-title">
        <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion" href="#importationCollapse">Importation</a>
      </h3>
    </div>
    <div id="importationCollapse" class="panel-collapse collapse in">
      <div class="panel-body">
        <p>Content: blahblah</p>
      </div>
    </div>
  </div>
</div>

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