更改按钮启动时打开的图标 [英] Change icon open on button bootstrap

问题描述

我正在将按钮与Bootstrap Glyphicon组件一起使用，并且在一页上有很多按钮，它使用折叠来显示隐藏的部分.这是我拥有的示例代码

I am using button with Bootstrap Glyphicon Components and have a lots of buttons on one page, it is using collapse to show hidden section.Here is example codes i have

<button type="button" class="btn btn-primary" data-toggle="collapse" data-target="#sixts-section-collapse">Prijava <span class="glyphicon glyphicon-menu-down"></span></button>

<button type="button" class="btn btn-primary" data-toggle="collapse" data-target="#sixts-section-collapse">Prijava <span class="glyphicon glyphicon-menu-down"></span></button>

<button type="button" class="btn btn-primary" data-toggle="collapse" data-target="#sixts-section-collapse">Prijava <span class="glyphicon glyphicon-menu-down"></span></button> 

我需要的是，当用户单击该按钮并显示折叠时，只是要将图标从下更改为上，我知道我可以在全球范围内使它，但我只需要检查该按钮以及该按钮上的显示其他图标即可.这意味着何时关闭图标向下，何时打开图标向上

What i need is when user click on that button and collapse is shown just to change that icon from down to up, i know i can make it globally for all, but i need to check only for that button and on that button to show another icon. It means when is closed icon down, and when is opened icon up

推荐答案

$(document).ready(function(){
    $("button[data-toggle=collapse]").click(function(){
        $(this).find('span:first').toggleClass('glyphicon-chevron-down glyphicon-chevron-up')
    });
});

工作演示

$(".collapse").collapse()
$("button[data-toggle=collapse]").click(function(){
        $(this).find('span:first').toggleClass('glyphicon-chevron-down glyphicon-chevron-up')
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
<div class="container">
    <div class="panel-group" id="accordion">
      <div class="panel panel-default">
        <div class="panel-heading">
          <h4 class="panel-title">
            <button type="button" class="btn btn-primary" data-toggle="collapse" data-target="#demo">
              <span class="glyphicon glyphicon-chevron-down"></span> Open
            </button>
          </h4>
        </div>
        <div id="demo" class="panel-collapse collapse in">
          <div class="panel-body">
            Contents:Thank you to help me solve the problem, you're a great guy!
          </div>
        </div>
      </div>
    </div>
</div>

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