javascript 使用 jQuery 的轮播
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carousel using jQuery
提问by harshes53
I know there are plugins available out there, but I'm trying to make one of myself but before that I'm trying to understand the concept of making it as an infinite/circular carousel. Here is my jsfiddle so far.. http://jsfiddle.net/hbk35/KPKyz/3/
我知道那里有可用的插件，但我正在尝试自己制作一个，但在此之前我试图理解将其制作为无限/圆形旋转木马的概念。到目前为止，这是我的jsfiddle .. http://jsfiddle.net/hbk35/KPKyz/3/
HTML:
HTML：
<div id="carousel_wrapper">
<ul>
<li>
<div>0</div>
</li>
<li>
<div>1</div>
</li>
<li>
<div>2</div>
</li>
<li>
<div>3</div>
</li>
<li>
<div>4</div>
</li>
<li>
<div>5</div>
</li>
<li>
<div>6</div>
</li>
<li>
<div>7</div>
</li>
</ul>
</div>
<br>
<div id="buttons">
<button id="left">left</button>
<button id="right">right</button>
</div>
JS:
JS：
var container = $("#carousel_wrapper");
var runner = container.find('ul');
var liWidth = runner.find('li:first').outerWidth();
var itemsPerPage = 3;
var noofitems = runner.find('li').length;
runner.width(noofitems * liWidth);
container.width(itemsPerPage*liWidth);
$('#right').on('click',function(){
runner.animate({scrollLeft: -liWidth},1000);
});
$('#left').on('click',function(){
runner.animate({scrollLeft: liWidth},1000);
});
CSS:
CSS：
div#carousel_wrapper{
overflow:hidden;
position:relative;
}
ul {
padding:0px;
margin:0px;
}
ul li {
list-style:none;
float:left;
}
ul li div {
border:1px solid white;
width:50px;
height:50px;
background-color:gray;
}
I do not want to use clone and detach method. Is there any other way to do that? Please anyone would like to guide me where I'm making mistake. I'm newbie to stack overflow and javascript/jquery also..trying to learn on my own. Forgive me I'm trying since to put my code onto the question, couldn't get neat and separate like others.
我不想使用克隆和分离方法。有没有其他方法可以做到这一点？请任何人都想指导我哪里出错了。我是堆栈溢出和 javascript/jquery 的新手也......试图自己学习。原谅我，因为我正在尝试将我的代码放在问题上，无法像其他人一样整洁和分开。
Thanks!!
谢谢！！
采纳答案by artuc
Here you go an infinite. Could be done with less code for sure. http://jsfiddle.net/artuc/rGLsG/3/
在这里，你去无限。肯定可以用更少的代码来完成。 http://jsfiddle.net/artuc/rGLsG/3/
HTML:
HTML：
<a href="javascript:void(0);" class="btnPrevious">Previous</a>
<a href="javascript:void(0);" class="btnNext">Next</a>
<div class="carousel">
<ul>
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
<li>6</li>
<li>7</li>
<li>8</li>
<li>9</li>
<li>10</li>
<li>11</li>
<li>12</li>
<li>13</li>
<li>14</li>
</ul>
</div>
CSS:
CSS：
.carousel{
padding-top: 20px;
width: 357px;
overflow: hidden;
height: 50px;
position: relative;
}.carousel ul{
position: relative;
list-style: none;
list-style-type: none;
margin: 0;
height: 50px;
padding: 0;
}.carousel ul li{
position: absolute;
height: 25px;
width: 50px;
float: left;
margin-right: 1px;
background: #f2f2f2;
text-align: center;
padding-top: 25px;
}
JS:
JS：
$(function(){
var carousel = $('.carousel ul');
var carouselChild = carousel.find('li');
var clickCount = 0;
var canClick = true;
itemWidth = carousel.find('li:first').width()+1; //Including margin
//Set Carousel width so it won't wrap
carousel.width(itemWidth*carouselChild.length);
//Place the child elements to their original locations.
refreshChildPosition();
//Set the event handlers for buttons.
$('.btnNext').click(function(){
if(canClick){
canClick = false;
clickCount++;
//Animate the slider to left as item width
carousel.stop(false, true).animate({
left : '-='+itemWidth
},300, function(){
//Find the first item and append it as the last item.
lastItem = carousel.find('li:first');
lastItem.remove().appendTo(carousel);
lastItem.css('left', ((carouselChild.length-1)*(itemWidth))+(clickCount*itemWidth));
canClick = true;
});
}
});
$('.btnPrevious').click(function(){
if(canClick){
canClick = false;
clickCount--;
//Find the first item and append it as the last item.
lastItem = carousel.find('li:last');
lastItem.remove().prependTo(carousel);
lastItem.css('left', itemWidth*clickCount);
//Animate the slider to right as item width
carousel.finish(true).animate({
left: '+='+itemWidth
},300, function(){
canClick = true;
});
}
});
function refreshChildPosition(){
carouselChild.each(function(){
$(this).css('left', itemWidth*carouselChild.index($(this)));
});
}
});
回答by Ani
Here you go: http://jsfiddle.net/KPKyz/5/
给你：http: //jsfiddle.net/KPKyz/5/
JS
JS
var container = $("#carousel_wrapper");
var runner = container.find('ul');
var liWidth = runner.find('li:first').outerWidth();
var itemsPerPage = 3;
var noofitems = runner.find('li').length;
runner.width(noofitems * liWidth);
container.width(itemsPerPage*liWidth);
$('#right').click(function() {
$( runner ).animate({ "left": "-=51px" }, "slow" );
});
$('#left').click(function() {
$( runner ).animate({ "left": "+=51px" }, "slow" );
});
CSS
CSS
div#carousel_wrapper{
overflow:hidden;
position:relative;
width:500px;
height: 100px;
}
ul {
padding:0px;
margin:0px;
position: absolute;
top:50px;
left: 0px;
width:300px;
height: 50px;
overflow: hidden;
}
ul li {
list-style:none;
float:left;
}
ul li div {
border:1px solid white;
width:50px;
height:50px;
background-color:gray;
}
