正在处理现有的展开/折叠“ FAQ”手风琴页面，并希望使“展开/折叠”功能正常工作。
我设法使页面开始时一切都折叠了，但是当我单击任一列以展开然后单击另一列时，原始的页面不会折叠。
重要的是，我想保持搜索功能完整。
$('.collapse').collapse(); // Collapse all
// This section makes the search work.
(function() {
var searchTerm, panelContainerId;
$('#accordion_search_bar').on('change keyup', function() {
searchTerm = $(this).val();
$('#accordion > .panel').each(function() {
panelContainerId = '#' + $(this).attr('id');
// Makes search to be case insesitive
$.extend($.expr[':'], {
'contains': function(elem, i, match, array) {
return (elem.textContent || elem.innerText || '').toLowerCase()
.indexOf((match[3] || "").toLowerCase()) >= 0;
}
});
// END Makes search to be case insesitive
// Show and Hide Triggers
$(panelContainerId + ':not(:contains(' + searchTerm + '))').hide(); //Hide the rows that done contain the search query.
$(panelContainerId + ':contains(' + searchTerm + ')').show(); //Show the rows that do!
});
});
}());@import url('https://fonts.googleapis.com/css?family=Anton');
body {
background: #29AB87;
background-color:green;
}
h1 {
font-family: 'Anton', sans-serif;
color: #29AB87;
}
.input-group {
margin-top: 20px;
margin-bottom: 10px;
}
.panel {
margin-top: 10px;
background-color: rgba(255, 255, 255, .9)!important;
border: solid 2px #ccc;
}
.panel-heading {
background-color: #8AFFDF!important;
}
#accordion_search_bar {
border: solid 2px #ccc;
}
.btn-default {
border: solid 1.5px #ccc;
}
.fa-search {
font-size: 1.3em;
}
.fa-paw {
font-size: 1.4em;
color: #6B7F7A;
}<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<link href='https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css' rel='stylesheet'>
<link href='https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css' rel='stylesheet'>
<link href="css/style.css" rel="stylesheet">
<body>
<div class="col-lg-12">
<div class="container">
<div class="row">
<section class="panel panel-default">
<div class="panel-body">
<div class="row">
<div class="col-lg-3">
<h1>Animal Files</h1>
</div>
<div class="col-lg-9">
<div class="input-group">
<span class="input-group-btn"><button class="btn btn-default" type="button"><span class="input-group-btn"><i aria-hidden="true" class="fa fa-search"></i></span></button></span> <input class="form-control" id="accordion_search_bar" placeholder="Typing in a word like 'legless' will make snake the only accordion row available." type="search">
</div><!-- /input-group -->
</div><!-- /.col-lg-6 -->
</div>
<div class="row">
<div class="col-lg-12 col-xs-12">
<div aria-multiselectable="true" class="panel-group" id="accordion" role="tablist">
<div class="panel panel-default" id="collapseOne_container">
<div class="panel-heading" id="headingOne" role="tab">
<h4 class="panel-title"><a aria-controls="collapseOne" aria-expanded="true" data-parent="#accordion" data-toggle="collapse" href="#collapseOne" role="button"><i aria-hidden="true" class="fa fa-paw fa-fw"></i>Lion</a></h4>
</div>
<div aria-labelledby="headingOne" class="panel-collapse collapse in" id="collapseOne" role="tabpanel">
<div class="panel-body">
<p>The lion (Panthera leo) is one of the big cats in the genus Panthera and a member of the family Felidae. The commonly used term African lion collectively denotes the several subspecies in Africa. With some males exceeding 250 kg (550 lb) in weight, it is the second-largest living cat after the tiger. Wild lions currently exist in sub-Saharan Africa and in India (where an endangered remnant population resides in Gir Forest National Park). In ancient historic times, their range was in most of Africa, including North Africa, and across Eurasia from Greece and southeastern Europe to India. In the late Pleistocene, about 10,000 years ago, the lion was the most widespread large land mammal after humans: Panthera leo spelaea lived in northern and western Europe and Panthera leo atrox lived in the Americas from the Yukon to Peru.</p>
</div>
</div>
</div>
<div class="panel panel-default" id="collapseTwo_Container">
<div class="panel-heading" id="headingTwo" role="tab">
<h4 class="panel-title"><a aria-controls="collapseTwo" aria-expanded="false" class="collapsed" data-parent="#accordion" data-toggle="collapse" href="#collapseTwo" role="button"><i aria-hidden="true" class="fa fa-paw fa-fw"></i>Snake</a></h4>
</div>
<div aria-labelledby="headingTwo" class="panel-collapse collapse in" id="collapseTwo" role="tabpanel">
<div class="panel-body">
<p>Snakes are elongated, legless, carnivorous reptiles of the suborder Serpentes that can be distinguished from legless lizards by their lack of eyelids and external ears. Like all squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales. Many species of snakes have skulls with several more joints than their lizard ancestors, enabling them to swallow prey much larger than their heads with their highly mobile jaws. To accommodate their narrow bodies, snakes' paired organs (such as kidneys) appear one in front of the other instead of side by side, and most have only one functional lung. Some species retain a pelvic girdle with a pair of vestigial claws on either side of the cloaca.</p>
</div>
</div>
</div>
<div class="panel panel-default" id="collapseThree_Container">
<div class="panel-heading" id="headingThree" role="tab">
<h4 class="panel-title"><a aria-controls="collapseThree" aria-expanded="false" class="collapsed" data-parent="#accordion" data-toggle="collapse" href="#collapseThree" role="button"><i aria-hidden="true" class="fa fa-paw fa-fw"></i>Meerkat</a></h4>
</div>
<div aria-labelledby="headingThree" class="panel-collapse collapse in" id="collapseThree" role="tabpanel">
<div class="panel-body">
<p>The meerkat or suricate (Suricata suricatta) is a small carnivoran belonging to the mongoose family (Herpestidae). It is the only member of the genus Suricata. Meerkats live in all parts of the Kalahari Desert in Botswana, in much of the Namib Desert in Namibia and southwestern Angola, and in South Africa. A group of meerkats is called a "mob", "gang" or "clan". A meerkat clan often contains about 20 meerkats, but some super-families have 50 or more members. In captivity, meerkats have an average life span of 12–14 years, and about half this in the wild.</p>
</div>
</div>
</div>
</div>
<p>Information is provided by Wikipedia</p>
</div>
</div><!-- Row -->
</div><!-- Col -->
</section>
</div><!-- Container -->
</div>
</div>
</body>
</html>
所有项目开始都是折叠的，基本上，当用户单击第一个爪以展开然后单击另一个爪时，第一个爪应“折叠”。当用户单击另一只爪子以展开时，先前的爪子应折叠起来，以便一次只保留一个项。
答案 0 :(得分：1)
如果要使面板开始折叠，请不要使用in class。
调用$('.collapse').collapse();不会折叠面板，而是将reactivates the .collapse elements与default options合并，覆盖.in（因此面板关闭）和data-parent（因此您一次只能失去一个面板的行为。
您也不需要在每次按键时都定义:contains伪选择器。一次就够了。而且，您无需显式循环所有#accordion的{{1}}，只需使用足够宽的选择器即可。
.panel// Not necessary.
// $('.collapse').collapse();
// This section makes the search work.
(function() {
// Makes search to be case insesitive
$.extend($.expr[':'], {
'contains': function(elem, i, match, array) {
return (elem.textContent || elem.innerText || '').toLowerCase()
.indexOf((match[3] || "").toLowerCase()) >= 0;
}
});
// END Makes search to be case insesitive
$('#accordion_search_bar').on('change keyup', function() {
var searchTerm = $(this).val();
$('#accordion > .panel').hide(); // Hide all rows.
$('#accordion > .panel:contains(' + searchTerm + ')').show(); // Show the rows that match the search query.
});
}());@import url('https://fonts.googleapis.com/css?family=Anton');
body {
background: #29AB87;
background-color: green;
}
h1 {
font-family: 'Anton', sans-serif;
color: #29AB87;
}
.input-group {
margin-top: 20px;
margin-bottom: 10px;
}
.panel {
margin-top: 10px;
background-color: rgba(255, 255, 255, .9)!important;
border: solid 2px #ccc;
}
.panel-heading {
background-color: #8AFFDF!important;
}
#accordion_search_bar {
border: solid 2px #ccc;
}
.btn-default {
border: solid 1.5px #ccc;
}
.fa-search {
font-size: 1.3em;
}
.fa-paw {
font-size: 1.4em;
color: #6B7F7A;
}