【问题标题】:How to change the logo collapse when the link is unfolded?链接展开时如何更改徽标折叠?
【发布时间】:2018-06-14 17:16:18
【问题描述】:

我用 Bootstrap 创建了一个手风琴链接,我希望在手风琴关闭时有一个徽标“Plus”,在 arcordon 打开时有一个徽标“Less”。这是我的html代码:

<div class="panel-group" id="accordion">
  <div class="panel panel-default">
    <div class="panel-heading">
      <a data-toggle="collapse" data-parent="#accordion" href="#collapse1">
        <h4 class="panel-title">
        <i class="fa fa-object-group fa-lg"></i> Ses contenus <span class="badge">12</span>
        <div class="panel-button"><i class="fa fa-minus-circle fa-lg"></i></div>
        </h4>
      </a>
    </div>
    <div id="collapse1" class="panel-collapse collapse">
      <div class="panel-body"><dd>{{ drupal_view('profil_page_contenu_utilisateur', 'block_1') }}</dd></div>
    </div>
  </div>
</div>

这是css,但它不起作用:

body.path-profile .field--name-dynamic-block-fieldprofile-profil-page-contenu-utilisateur .panel-button div.collapse > a i:before {
    content: '\f055';
}

body.path-profile .field--name-dynamic-block-fieldprofile-profil-page-contenu-utilisateur .panel-button div.collapse > a[aria-expanded=true] i:before {
    content: '\f056';
}

【问题讨论】:

标签: html css twitter-bootstrap accordion collapse


【解决方案1】:

Bootstrap 使用它自己的 Jquery 制作了 Collapse。

它也更适合你使用 Jquery。

看到这个问题:

Twitter bootstrap 3.0 icon change on collapse

【讨论】:

    【解决方案2】:

    希望这会有所帮助...

    $(document).ready(function(){
      $("#collapse1").on("hide.bs.collapse", function(){
        $("#icon").html('<span class="glyphicon glyphicon-plus"></span>');
      });
      $("#collapse1").on("show.bs.collapse", function(){
        $("#icon").html('<span class="glyphicon glyphicon-minus"></span>');
      });
    });
    #icon{
    float: right;
    }
    <!DOCTYPE html>
    <html>
    <head>
      <meta name="viewport" content="width=device-width, initial-scale=1">
      <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
      <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
      <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
    </head>
    <body>
    
    <div class="container">
      <h2>Collapsible Panel</h2>
      <p>Click on the collapsible panel to open and close it.</p>
      <div class="panel-group">
        <div class="panel panel-default">
          <div class="panel-heading">
            <h4 class="panel-title">
              <a data-toggle="collapse" href="#collapse1">Collapsible panel<p id="icon"><span class="glyphicon glyphicon-plus"></p></a>
            </h4>
          </div>
          <div id="collapse1" class="panel-collapse collapse">
            <div class="panel-body">Panel Body</div>
            <div class="panel-footer">Panel Footer</div>
          </div>
        </div>
      </div>
    </div>
        
    </body>
    </html>

    【讨论】:

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