老师有源码可以下载吗？
老师有源码可以下载吗？
2 回答
//自己写的，根据老师的思路，修正了bug
html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
*{
padding: 0;
margin: 0;
}
html, body{
height: 100%;
overflow: hidden;
}
#container, .sections, .section{
height: 100%;
}
#section0,#section1,#section2,#section3{
background-color: #000;
background-size: cover;
background-position: 50% 50%;
text-align: center;
color: white;
}
#section0{
background-image: url(images/1.jpg);
}
#section1{
background-image: url(images/2.jpg);
}
#section2{
background-image: url(images/3.jpg);
}
#section3{
background-image: url(images/4.jpg);
}
.pages{
position:fixed;
right: 10px;
top: 50%;
list-style: none;
}
.pages li{
width: 8px;
height: 8px;
border-radius: 50%;
background: #fff;
margin: 0 0 10px 5px;
}
.pages li.active{
width: 14px;
height: 14px;
border: 2px solid #FFFE00;
background: none;
margin-left: 0;
}
</style>
</head>
<body>
<div id="container">
<div>
<div id="section0">
<h3>this is the page1</h3>
</div>
<div id="section1">
<h3>this is the page2</h3>
</div>
<div id="section2">
<h3>this is the page3</h3>
</div>
<div id="section3">
<h3>this is the page4</h3>
</div>
</div>
</div>
<script type="text/javascript" src="jquery-1.11.2.min.js"></script>
<script type="text/javascript" src="jqchange.js"></script>
<script type="text/javascript">
$('#container').PageSwitch();
</script>
</body>
</html>js
(function ($) {
//通过判断js属性的方式获取前缀
var _prefix = (function (temp) {
var aPrefix = ['webkit','Moz','o','ms'],
props = '';
for (var i in aPrefix) {
props = aPrefix[i] + 'Transition';
if (temp.style[ props] !== undefined) {
return '-' + aPrefix[i].toLowerCase() + '-';
}
}
return false;
})(document.createElement(PageSwitch));//实参
//内部实际主函数
var PageSwitch = (function () {
//element = 外层
function PageSwitch (element, options) {
this.settings = $.extend(true, $.fn.PageSwitch.defaults, options||{});
this.element = element;
this.init();
}
PageSwitch.prototype = {
init : function () {
//全局公共方法，实现内容
var me = this;//保存pageSwitch对象
me.selectors = me.settings.selectors;
me.sections = me.element.find(me.selectors.sections);//整个页面框架
me.section = me.sections.find(me.selectors.section);//每个页面元素
me.direction = me.settings.direction =="vertical"? true : false;
me.pagesCount = me.pagesCount();//页面元素计数
me.index =(me.settings.index >= 0 && me.settings.index < me.pagesCount)? me.settings.index : 0;//初始页面位置
me.canScroll = true;
if(!me.direction) {
me._initLayout();//初始化布局
}
if(me.settings.pagination) {
me._initPaging();//创建分页处理
}
me._initEvent();//事件绑定
me._scrollPage();//初始化位置
},
//获取滑动页面数量
pagesCount : function () {
return this.section.length;
},
//获取华东页面宽度、高度
switchLength : function () {
return this.direction? this.element.height() : this.element.width();
},
//向前滑动上一个页面
prev : function () {
var me = this;
if (me.index > 0) {
me.index --;
} else if (me.settings.loop) {
me.index = me.pagesCount - 1;
}
me._scrollPage();
},
//向后滑动下一个页面
next : function () {
var me = this;
if (me.index < me.pagesCount - 1) {
me.index ++;
} else if (me.settings.loop) {
me.index = 0;
}
me._scrollPage();
},
//横屏页面布局
_initLayout : function () {
var me = this;
var width = me.pagesCount * 100 + '%',
cellWidth = (100/me.pagesCount).toFixed(2) + '%';
me.sections.width(width);
me.section.width(cellWidth).css('float','left');
},
//创建分页处理
_initPaging : function () {
var me = this,
pageClass = me.selectors.page.substring(1);
me.activeClass = me.selectors.active.substring(1);
var pageHtml = '<ul class="'+pageClass+'">';
for (var i = 0; i < me.pagesCount; i++) {
pageHtml += '<li></li>';
}
pageHtml +='</ul>';
me.element.append(pageHtml);
var pages = me.element.find(me.selectors.page);
me.pageItem = pages.find('li');
me.pageItem.eq(me.index).addClass(me.activeClass);
if (me.direction) {
pages.addClass('vertical');
} else {
pages.addClass('horizontal');
}
},
//事件绑定
_initEvent : function () {
var me = this;
//点击事件
me.element.on('click', me.selectors.page + ' li', function() {
if (me.sections.is(":animated")) {
me.sections.stop(true,true);
}
me.index = $(this).index();
me._scrollPage();
});
//滚轮事件
me.element.on('mousewheel DOMMouseScroll', function (e) {
if (!me.canScroll) {
return;
}
var delta = e.originalEvent.wheelDelta || - e.originalEvent.detail;
//向上
if(delta > 0 && ((me.index && !me.settings.loop) || me.settings.loop)) {
me.prev();
//向下
} else if (delta < 0 && ((me.index != (me.pagesCount - 1) && !me.settings.loop) || me.settings.loop)) {
me.next();
}
});
//j键盘事件
if (me.settings.keyboard) {
$(window).on('keydown',function (e) {
if (!me.canScroll) {
return;
}
var keyCode = e.keyCode;
if ((keyCode == 37 || keyCode == 38) && ((me.index && !me.settings.loop) || me.settings.loop)) {
me.prev();
} else if ((keyCode == 39 || keyCode == 40) && ((me.index != (me.pagesCount - 1) && !me.settings.loop) || me.settings.loop)) {
me.next();
}
});
}
//窗口变化事件
$(window).resize(function () {
var currentLength = me.switchLength(),
offset = me.settings.direction? me.section.eq(me.index).offset().top : me.section.eq(me.index).offset().left;
if (Math.abs(offset) > currentLength/2 && me.index < (me.pagesCount - 1)) {
me.index ++;
}
if (me.index) {
me._scrollPage();
}
});
//动画结束后回调事件
me.sections.on('transitionend webkitTransitionEnd oTransitionEnd otransitionEnd', function () {
me.canScroll = true;
if (me.settings.callback && $.type(me.settings.callback) == 'function') {
me.settings.callback();
}
});
},
_scrollPage : function () {
var me = this;
me.canScroll = false;
if (_prefix) {
me.sections.css(_prefix + 'transition','all ' + me.settings.duration/1000 + 's ' + me.settings.easing);
var translate = me.direction? 'translateY(-' + me.switchLength() * me.index + 'px)' : 'translateX(-' + me.switchLength() * me.index + 'px)';
me.sections.css(_prefix + 'transform', translate);
} else {
var animateCss = me.direction? {top : -me.switchLength() * me.index} : {left : -me.switchLength() * me.index};
me.sections.css('position','relative');
me.sections.animate(animateCss, me.settings.direction, function () {
me.canScroll = true;
if (me.settings.callback && $.type(me.settings.callback) == 'function') {
me.settings.callback();
}
});
}
if (me.settings.pagination) {
me.pageItem.eq(me.index).addClass(me.activeClass).siblings('li').removeClass(me.activeClass);
}
}
};
return PageSwitch;//注册全局方法
})();
/*-----------------------------------------------------------------*/
//主函数
$.fn.PageSwitch = function (options) {
return this.each(function () {
var me = $(this),
instance = me.data("PageSwitch");//检验是否存在对象实例，用data存放对象的实例
if (!instance) {
instance = new PageSwitch(me, options);//从内部实际主函数（全局方法）中新建实例并存储
me.data("PageSwitch", instance);//保存到data里面
}
//判断传入参数如果是字符串，返回该字符串方法调用
if ($.type(options) ==="string") { return instance[options]();}
//在使用时访问元素的继承方法init
//$("div").PageSwitch("init");
});
};
//参数
$.fn.PageSwitch.defaults = {
selectors : {
sections : ".sections",
section : ".section",
page : ".pages",
active : ".active"
},
index : 0,
easing : "ease",
duration : 500,//毫秒
loop : false,
pagination : true,//分页
keyboard : true,
direction : "vertical",
callback : ""
};
/*-----------------------------------------------------------------*/
//可通过属性的方式全局执行一次初始化
$(function () {
$("[data-PageSwitch]").PageSwitch();
});
})(jQuery);举报
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