javascript - 显示/隐藏多个元素的过渡
问题描述
我正在尝试在我的一个网页上实现显示/隐藏功能。基本上,我的网站上有一个页面显示“行话”和定义。用户单击标题,然后应显示定义。
我尝试了两种不同的技术,一种有效但非常苛刻,没有过渡,它基本上是开放或封闭的:
jQuery(function($){
var acc = document.getElementsByClassName("jarg-container");
var i;
for (i = 0; i < acc.length; i++) {
acc[i].onclick = function() {
this.classList.toggle("active");
var panel = this.nextElementSibling;
if (panel.style.maxHeight){
panel.style.maxHeight = null;
}
else {
panel.style.maxHeight = panel.scrollHeight + "px";
}
}
}
});
.jarg-container {
background: gainsboro;
box-shadow: 4px 5px 14px 1px black;
height: 4.5em;
width: 45% !important;
margin: 0 2.5% 2em;
}
.jarg-container h2 {
display: flex;
align-items: center;
justify-content: center;
cursor: pointer;
}
.jarg-container .jargon-desc {
height: 0;
display: none;
}
.jarg-container.active .jargon-desc{
height:100%;
display:block;
}
.jarg-container.active {
height: 100%;
}
.jarg-container h2::after {
content: '\02795';
font-size: 0.5em !important;
right: 10%;
position: absolute;
}
.jarg-container.active h2::after {
content: "\2796";
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<main id="content">
<div class="container">
<div class="row">
<div class="col-md-12">
<div id="primary" class="content-area">
<main id="main" class="site-main" role="main">
<div class="col-md-12">
<div class="col-md-6 jarg-container">
<h2>Jargon</h2>
<div class="jargon-desc">
<p>Description.</p>
</div>
</div>
<div class="col-md-6 jarg-container">
<h2>Jargon</h2>
<div class="jargon-desc">
<p>Description.</p>
</div>
</div>
</div>
<div class="col-md-12">
<div class="col-md-6 jarg-container">
<h2>Jargon</h2>
<div class="jargon-desc">
<p>Description.</p>
</div>
</div>
<div class="col-md-6 jarg-container">
<h2>Jargon</h2>
<div class="jargon-desc">
<p>Description.</p>
</div>
</div>
</div>
</main>
<!-- #main -->
</div>
<!-- #primary -->
</div>
</div>
</div>
</main>
另一个我喜欢,但是当一个打开时,它们都打开了:
$('.jargon-header').on('click', function(){
$('.jargon-desc').toggleClass('show');
});
.jargon-desc {
height: 0px;
opacity: 0;
transition: all .75s ease;
}
.jargon-desc.show {
opacity: 1;
height: 100%;
}
.jarg-container {
background: gainsboro;
box-shadow: 4px 5px 14px 1px black;
width: 45% !important;
margin: 0 2.5% 2em;
transition:all .75s ease;
}
.jarg-container h2 {
display: flex;
align-items: center;
justify-content: center;
cursor: pointer;
}
.jarg-container h2::after {
content: '\02795';
font-size: 0.5em !important;
right: 10%;
position: absolute;
}
.jarg-container.show h2::after {
content: "\2796";
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<main id="content">
<div class="container">
<div class="row">
<div class="col-md-12">
<div id="primary" class="content-area">
<main id="main" class="site-main" role="main">
<div class="col-md-12">
<div class="col-md-6 jarg-container">
<div class="jargon-header" href="#">
<h2>Jargon</h2>
</div>
<div class="jargon-desc">
<p>Description.</p>
</div>
</div>
<div class="col-md-6 jarg-container">
<div class="jargon-header" href="#">
<h2>Jargon</h2>
</div>
<div class="jargon-desc">
<p>Description.</p>
</div>
</div>
</div>
<div class="col-md-12">
<div class="col-md-6 jarg-container">
<div class="jargon-header" href="#">
<h2>Jargon</h2>
</div>
<div class="jargon-desc">
<p>Description.</p>
</div>
</div>
<div class="col-md-6 jarg-container">
<div class="jargon-header" href="#">
<h2>Jargon</h2>
</div>
<div class="jargon-desc">
<p>Description.</p>
</div>
</div>
</div>
<div class="col-md-12">
<div class="col-md-6 jarg-container">
<div class="jargon-header" href="#">
<h2>Jargon</h2>
</div>
<div class="jargon-desc">
<p>Description.</p>
</div>
</div>
<div class="col-md-6 jarg-container">
<div class="jargon-header" href="#">
<h2>Jargon</h2>
</div>
<div class="jargon-desc">
<p>Description.</p>
</div>
</div>
</div>
</main>
<!-- #main -->
</div>
<!-- #primary -->
</div>
</div>
</div>
</main>
理想情况下,我想要 2... 的组合,其中所有元素单独打开并使用第二个代码使用的过渡效果...
将两者结合起来的任何帮助都会很棒
解决方案
要同时实现过渡和一次只移动一个元素,您可以使用this
关键字。当一个函数被调用时,在这种情况下function()
是你的点击监听器内部,它将绑定this
到那个上下文。这允许您选择通过简单地使用单击的元素$(this)
。
这可能不是最详细的解释,所以这里有一些关于这个主题的更多信息。
$('.jargon-header').on('click', function() {
// Use this to select the element that was clicked
$(this)
// Then just select the next description
.next('.jargon-desc')
// And toggle the class on that description
.toggleClass('show');
});
.jargon-desc {
height: 0px;
opacity: 0;
transition: all .75s ease;
}
.jargon-desc.show {
opacity: 1;
height: 100%;
}
.jarg-container {
background: gainsboro;
box-shadow: 4px 5px 14px 1px black;
width: 45% !important;
margin: 0 2.5% 2em;
transition: all .75s ease;
}
.jarg-container h2 {
display: flex;
align-items: center;
justify-content: center;
cursor: pointer;
}
.jarg-container h2::after {
content: '\02795';
font-size: 0.5em !important;
right: 10%;
position: absolute;
}
.jarg-container.show h2::after {
content: "\2796";
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<main id="content">
<div class="container">
<div class="row">
<div class="col-md-12">
<div id="primary" class="content-area">
<main id="main" class="site-main" role="main">
<div class="col-md-12">
<div class="col-md-6 jarg-container">
<div class="jargon-header" href="#">
<h2>Jargon</h2>
</div>
<div class="jargon-desc">
<p>Description.</p>
</div>
</div>
<div class="col-md-6 jarg-container">
<div class="jargon-header" href="#">
<h2>Jargon</h2>
</div>
<div class="jargon-desc">
<p>Description.</p>
</div>
</div>
</div>
<div class="col-md-12">
<div class="col-md-6 jarg-container">
<div class="jargon-header" href="#">
<h2>Jargon</h2>
</div>
<div class="jargon-desc">
<p>Description.</p>
</div>
</div>
<div class="col-md-6 jarg-container">
<div class="jargon-header" href="#">
<h2>Jargon</h2>
</div>
<div class="jargon-desc">
<p>Description.</p>
</div>
</div>
</div>
<div class="col-md-12">
<div class="col-md-6 jarg-container">
<div class="jargon-header" href="#">
<h2>Jargon</h2>
</div>
<div class="jargon-desc">
<p>Description.</p>
</div>
</div>
<div class="col-md-6 jarg-container">
<div class="jargon-header" href="#">
<h2>Jargon</h2>
</div>
<div class="jargon-desc">
<p>Description.</p>
</div>
</div>
</div>
</main>
<!-- #main -->
</div>
<!-- #primary -->
</div>
</div>
</div>
</main>
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