这个问题是有问题评论的延续
How to add plus minus symbol to a bootstrap accordion
如何在嵌套的引导手风琴中添加正负符号，并使它们正确工作？目前，他们没有像预期的那样切换。
这是我尝试过的：http://jsfiddle.net/4t1qs0uv/2/
HTML：
<div class="panel-group" id="accordion1">
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#accordion" href="#livingroom-10" class="collapsed">Living Room</a>
</h4>
</div>
<div id="livingroom-10" class="panel-collapse collapse" style="height: 0px;">
<div class="panel-body">
<div class="panel-group" id="accordion2">
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#accordion" href="#add101">
Air Condition
</a>
</h4>
</div>
<div id="add101" class="panel-collapse collapse">
<div class="panel-body">
<form class="form-inline" role="form">
<div class="form-group">
<label for="usageperday">Usage Per Day</label><br>
<input type="text" class="form-control" name="usageperday-1.0.1" placeholder="Usage Per Day" value="8">
</div>
<div class="form-group">
<label for="numbermonth">Number of days used per month</label><br>
<input type="text" class="form-control" name="numbermonth-1.0.1" placeholder="Number of days used per month" value="30">
</div>
<div class="form-group">
<label for="watts">Watts</label><br>
<input type="text" class="form-control" name="watts-1.0.1" placeholder="Watts" value="1500">
</div>
</form>
</div>
</div>
</div>
</div>
<div class="panel-group" id="accordion2">
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#accordion" href="#add102">
Fan
</a>
</h4>
</div>
<div id="add102" class="panel-collapse collapse in">
<div class="panel-body">
<form class="form-inline" role="form">
<div class="form-group">
<label for="usageperday">Usage Per Day</label><br>
<input type="text" class="form-control" name="usageperday-1.0.2" placeholder="Usage Per Day" value="8">
</div>
<div class="form-group">
<label for="numbermonth">Number of days used per month</label><br>
<input type="text" class="form-control" name="numbermonth-1.0.2" placeholder="Number of days used per month" value="30">
</div>
<div class="form-group">
<label for="watts">Watts</label><br>
<input type="text" class="form-control" name="watts-1.0.2" placeholder="Watts" value="90">
</div>
</form>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#accordion" href="#bathroom-20" class="collapsed">
Bathroom
</a>
</h4>
</div>
<div id="bathroom-20" class="panel-collapse collapse" style="height: 0px;">
<div class="panel-body">
<div class="panel-group" id="accordion2">
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#accordion" href="#add2029">
Router
</a>
</h4>
</div>
<div id="add2029" class="panel-collapse collapse">
<div class="panel-body">
<form class="form-inline" role="form">
<div class="form-group">
<label for="usageperday">Usage Per Day</label><br>
<input type="text" class="form-control" name="usageperday-2.0.29" placeholder="Usage Per Day" value="24">
</div>
<div class="form-group">
<label for="numbermonth">Number of days used per month</label><br>
<input type="text" class="form-control" name="numbermonth-2.0.29" placeholder="Number of days used per month" value="30">
</div>
<div class="form-group">
<label for="watts">Watts</label><br>
<input type="text" class="form-control" name="watts-2.0.29" placeholder="Watts" value="10">
</div>
</form>
</div>
</div>
</div>
</div>
<div class="panel-group" id="accordion2">
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#accordion" href="#add2030">
Scanner
</a>
</h4>
</div>
<div id="add2030" class="panel-collapse collapse">
<div class="panel-body">
<form class="form-inline" role="form">
<div class="form-group">
<label for="usageperday">Usage Per Day</label><br>
<input type="text" class="form-control" name="usageperday-2.0.30" placeholder="Usage Per Day" value="0.1">
</div>
<div class="form-group">
<label for="numbermonth">Number of days used per month</label><br>
<input type="text" class="form-control" name="numbermonth-2.0.30" placeholder="Number of days used per month" value="2">
</div>
<div class="form-group">
<label for="watts">Watts</label><br>
<input type="text" class="form-control" name="watts-2.0.30" placeholder="Watts" value="20">
</div>
</form>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
JavaScript：
jQuery(function ($) {
var $active = $('#accordion1 .panel-collapse.in').prev().addClass('active');
$active.find('a').append('<span class="glyphicon glyphicon-minus pull-right"></span>');
$('#accordion1 .panel-heading').not($active).find('a').prepend('<span class="glyphicon glyphicon-plus pull-right"></span>');
$('#accordion1').on('show.bs.collapse', function (e) {
$('#accordion1 .panel-heading.active').removeClass('active').find('.glyphicon').toggleClass('glyphicon-plus glyphicon-minus');
$(e.target).prev().addClass('active').find('.glyphicon').toggleClass('glyphicon-plus glyphicon-minus');
});
$('#accordion1').on('hide.bs.collapse', function (e) {
$(e.target).prev().removeClass('active').find('.glyphicon').removeClass('glyphicon-minus').addClass('glyphicon-plus');
});
var $active2 = $('#accordion2 .panel-collapse.in').prev().addClass('active');
$active2.find('a').append('<span class="glyphicon glyphicon-minus pull-right"></span>');
$('#accordion2 .panel-heading').not($active2).find('a').prepend('<span class="glyphicon glyphicon-plus pull-right"></span>');
$('#accordion2').on('show.bs.collapse', function (e) {
$('#accordion2 .panel-heading.active').removeClass('active').find('.glyphicon').toggleClass('glyphicon-plus glyphicon-minus');
$(e.target).prev().addClass('active').find('.glyphicon').toggleClass('glyphicon-plus glyphicon-minus');
});
$('#accordion2').on('hide.bs.collapse', function (e) {
$(e.target).prev().removeClass('active').find('.glyphicon').removeClass('glyphicon-minus').addClass('glyphicon-plus');
});
});
最佳答案
如果使用正确的样式和唯一的ID实现面板组，则也可以使用CSS在嵌套的切换器上添加指示器。不需要新的JQuery：
演示：http://jsbin.com/zixeza/1/
CSS：
.panel-group .panel-heading a:after {
content: '-';
position: absolute;
right: 20px;
top:5px;
}
.panel-group .panel-heading a.collapsed:after {
content: '+';
}
HTML：
<div class="container">
<div class="panel-group" id="accordion">
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#accordion" href="#collapseOne">
Collapsible Group Item #1
</a>
</h4>
</div><!--/.panel-heading -->
<div id="collapseOne" class="panel-collapse collapse in">
<div class="panel-body">
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><!--/.panel-body -->
</div><!--/.panel-collapse -->
</div><!-- /.panel -->
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a class="collapsed" data-toggle="collapse" data-parent="#accordion" href="#collapseTwo">
Collapsible Group Item #2
</a>
</h4>
</div><!--/.panel-heading -->
<div id="collapseTwo" class="panel-collapse collapse">
<div class="panel-body">
<!-- nested -->
<div class="panel-group" id="nested">
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#nested" href="#nested-collapseOne">
Collapsible Group Item #1
</a>
</h4>
</div><!--/.panel-heading -->
<div id="nested-collapseOne" class="panel-collapse collapse in">
<div class="panel-body">
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><!--/.panel-body -->
</div><!--/.panel-collapse -->
</div><!-- /.panel -->
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a class="collapsed" data-toggle="collapse" data-parent="#nested" href="#nested-collapseTwo">
Collapsible Group Item #2
</a>
</h4>
</div><!--/.panel-heading -->
<div id="nested-collapseTwo" class="panel-collapse collapse">
<div class="panel-body">
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><!--/.panel-body -->
</div><!--/.panel-collapse -->
</div><!-- /.panel -->
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a class="collapsed" data-toggle="collapse" data-parent="#nested" href="#nested-collapseThree">
Collapsible Group Item #3
</a>
</h4>
</div><!--/.panel-heading -->
<div id="nested-collapseThree" class="panel-collapse collapse">
<div class="panel-body">
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><!--/.panel-body -->
</div><!--/.panel-collapse -->
</div><!-- /.panel -->
</div><!-- /.panel-group -->
<!-- nested -->
</div><!--/.panel-body -->
</div><!--/.panel-collapse -->
</div><!-- /.panel -->
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a class="collapsed" data-toggle="collapse" data-parent="#accordion" href="#collapseThree">
Collapsible Group Item #3
</a>
</h4>
</div><!--/.panel-heading -->
<div id="collapseThree" class="panel-collapse collapse">
<div class="panel-body">
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><!--/.panel-body -->
</div><!--/.panel-collapse -->
</div><!-- /.panel -->
</div><!-- /.panel-group -->
</div><!-- /.container -->
关于javascript - 如何在嵌套的Bootstrap Accordion 中添加加减符号，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/26562687/