twitter-bootstrap - Bootstrap 崩溃 : change display of toggle button icons and text

Question

我正在使用 Twitter Bootstrap 创建可折叠的文本部分。当按下 + 按钮时，这些部分会展开。我的html代码如下:

Demo link

<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>

稍后，我需要更改文本、按钮图标并展开。

开了:

<button type="button" class="btn btn-primary" data-toggle="collapse" data-target="#demo">
  <span class="glyphicon glyphicon-chevron-up"></span> Close
</button>

关闭:

<button type="button" class="btn btn-primary" data-toggle="collapse" data-target="#demo">
  <span class="glyphicon glyphicon-chevron-down"></span> Open
</button>

Answer 1

也可以通过 css 样式来完成。

在css中添加样式:

.text-toogle[aria-expanded=false] .text-expanded {
  display: none;
}
.text-toogle[aria-expanded=true] .text-collapsed {
  display: none;
}

并在 html 中使用:

<a class="btn btn-default text-toogle" data-toggle="collapse" data-target="#tabsNavigation" aria-expanded="false">
    <span class="text-collapsed">More info</span>
    <span class="text-expanded">Less info</span>

    <i class="fa fa-angle-right"></i>
</a>

请记得添加属性

aria-expanded="false"

和类(class)

text-toogle

链接/按钮。