获取JCarousel中当前项的索引 [英] Getting Index of Current Item in JCarousel
问题描述
我试图在 JCarousel 中获取当前项目的索引，以便我可以显示旋转木马内的当前位置给用户。例如，'13 / 20'。
I am attempting to get the index of the current item in a JCarousel so that I can display the current position within the Carousel to the user. For example, '13/20'.
我该怎么做？
编辑：
最终产品样本：
推荐答案
我认为你在找什么是carousel.first，它将为您提供第一个可见元素的索引（还有carousel.last来显示最后一个可见元素）。
I think what you are looking for is carousel.first, which will give you the index of the first visible element (there is also carousel.last to show the last visible element).
这是一个例子它的用法，基于简单的轮播示例，添加了carousel.first变量和itemLoadCallback事件：
Here is an example of it's use, based on the simple carousel example with the addition of the carousel.first variable and itemLoadCallback event:
<script type="text/javascript">
$(document).ready(function() {
$('#mycarousel').jcarousel({
itemLoadCallback: trigger
});
});
function trigger(carousel, state)
{
$("#currentImg").html(carousel.first);
}
</script>
</head>
<body>
<div id="wrap">
<h1>jCarousel</h1>
<h2>Riding carousels with jQuery</h2>
<h3>Simple carousel</h3>
<p>
This is the most simple usage of the carousel with no configuration options.
</p>
<ul id="mycarousel" class="jcarousel-skin-tango">
<li><img src="http://static.flickr.com/66/199481236_dc98b5abb3_s.jpg" width="75" height="75" alt="" /></li>
<li><img src="http://static.flickr.com/75/199481072_b4a0d09597_s.jpg" width="75" height="75" alt="" /></li>
<li><img src="http://static.flickr.com/57/199481087_33ae73a8de_s.jpg" width="75" height="75" alt="" /></li>
<li><img src="http://static.flickr.com/77/199481108_4359e6b971_s.jpg" width="75" height="75" alt="" /></li>
<li><img src="http://static.flickr.com/58/199481143_3c148d9dd3_s.jpg" width="75" height="75" alt="" /></li>
<li><img src="http://static.flickr.com/72/199481203_ad4cdcf109_s.jpg" width="75" height="75" alt="" /></li>
<li><img src="http://static.flickr.com/58/199481218_264ce20da0_s.jpg" width="75" height="75" alt="" /></li>
<li><img src="http://static.flickr.com/69/199481255_fdfe885f87_s.jpg" width="75" height="75" alt="" /></li>
<li><img src="http://static.flickr.com/60/199480111_87d4cb3e38_s.jpg" width="75" height="75" alt="" /></li>
<li><img src="http://static.flickr.com/70/229228324_08223b70fa_s.jpg" width="75" height="75" alt="" /></li>
</ul>
Current Photo <span id="currentImg">1</span>
</div>
</body>
这篇关于获取JCarousel中当前项的索引的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
