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slide.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>slide</title>
<style>
ul,
li {
margin: 0;
padding: 0;
list-style: none;
}
.img-wrapper {
width: 300px;
overflow: hidden;
position: relative;
}
.img-ct {
font-size: 0;
position: relative;
width: 1200px;
}
.img-ct:after {
content: '';
display: block;
clear: both;
}
.images-item {
float: left;
}
.images-item img {
width: 300px;
}
.arrow {
background-color: gray;
padding: 5px;
color: #fff;
margin-top: -10px;
cursor: pointer;
position: absolute;
top: 50%;
}
.left {
left: 0;
}
.right {
right: 0;
}
</style>
</head>
<body>
<div class="img-wrapper">
<!-- 图片容器-->
<ul class="img-ct">
</ul>
<!-- 箭头 -->
<div class="arrow left">左箭头</div>
<div class="arrow right">右箭头</div>
</div>
</body>
<script src="http://apps.bdimg.com/libs/jquery/1.9.1/jquery.min.js"></script>
<script>
// 放置图片
var images = [1, 2, 3, 4].map(function (ele, index) {
return '<li class="images-item">' +
'<img src="http://cdn.jirengu.com/book.jirengu.com/img/' +
ele +
'.jpg">' +
'</li>'
}).join('');
$('.img-ct').html(images);
// 滑动组件
var Slider = function (container) {
this.arrowLeft = container.find('.left');
this.arrowRight = container.find('.right');
this.imgWrapper = container.find('.img-ct');
this.currentIndex = 0; // 当前序数号
this.imgLength = this.imgWrapper.children().length - 1; // 图片数量
this.addEvent();
}
Slider.prototype = {
// 添加事件
addEvent: function () {
var that = this;
this.arrowLeft.on('click', function () {
if (that.animating) {
return;
}
var index = that.calculateIndex(false)
that.slider(index);
})
var that = this;
this.arrowRight.on('click', function () {
if (that.animating) {
return;
}
var index = that.calculateIndex(true);
that.slider(index);
})
},
// 计算序号
calculateIndex: function (isRight) {
if (isRight) {
this.currentIndex++
} else {
this.currentIndex--
}
if (this.currentIndex == -1) {
this.currentIndex = this.imgLength;
}
if (this.currentIndex > this.imgLength) {
this.currentIndex = 0;
}
return this.currentIndex;
},
// 滑动
slider: function (index) {
var that = this;
this.animating = true;
this.imgWrapper.animate({
'left': index * (-300) + 'px'
}, function () {
that.animating = false;
})
},
}
new Slider($('.img-wrapper'))
</script>
</html>