javascript - 折叠选项卡 "manually"不要更改启动按钮上的文本

Question

仅当单击按钮 #collapse_init 时，我才能根据 active bool 变量将按钮上的文本更改为“全部显示”或“全部隐藏”

当我手动隐藏/折叠选项卡(一个接一个)时，按钮上的文本没有改变，我正在想办法解决这个问题。

• 我的意思是，无论是否显示所有选项卡(但不是通过按钮)- 按钮文本都不会更改。

** 目前笔无法正常工作 - 按钮无法正常工作(仅在“笔”中，在我的代码中它正在工作)，它不会一次折叠/隐藏所有内容(也试图找出原因) .

var active = false;
$('#collapse_init').click(function () {               
  if (active) {
    active = false;
    $('.panel-collapse').collapse('hide');
    $('.panel-title').attr('data-toggle', 'collapse');
    $(this).text('Show all');
  } else {
    active = true;
    $('.panel-collapse').collapse('show');
    $('.panel-title').attr('data-toggle', '');
    $(this).text('Hide all');                    
  }
});

$('.accordion-toggle').click(function () {
  var visible = $('.accordion-toggle:visible').length; 
  if(visible >0){
     $('#collapse_init').text('Hide all');
  }else{
     $('#collapse_init').text('Show all');
  }
});

<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://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
<div class="container">
   <button id="collapse_init" class="btn btn-default ">Show all</button>
	<hr>
  <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 ">
        <div class="panel-body">
          ONe 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" 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">
          Two 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" 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">
          Three 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>
</div>

代码笔

codepen

Answer 1

添加此代码并尝试

$('.accordion-toggle').click(function () {
  var visible = $('.accordion-toggle:visible').length; 
  if(visible >0){
     $('#collapse_init').text('Hide all');
  }else{
     $('#collapse_init').text('Show all');
  }
});