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幻灯片(响应式设计)(jquery实现)
Html代码:
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>detail</title> <meta name="viewport" content="initial-scale=1.0, maximum-scale=1.0, user-scalable=0"> <link rel="stylesheet" href="http://www.mamicode.com/Style/detail.css"> <script type="text/javascript" src="http://www.mamicode.com/Javascript/jquery.js"></script> <script type="text/javascript" src="http://www.mamicode.com/Javascript/detail.js"></script> <script type="text/javascript"> $(document).ready(function(){ $.focus(".slider"); }); </script></head><body> <div class="main"> <div class="slider"> <ul> <li><a href="javascript:void(0);" type=‘0‘> <img src="http://img.17u.cn/ly/cn/img/zizhuyou/rimage/500_270/2014/9/11/201409110148547940.jpg" ></a></li> <li><a href="javascript:void(0);" type=‘0‘> <img src="http://img.17u.cn/ly/cn/img/zizhuyou/rimage/500_270/2014/10/14/201410140439098138.jpg"></a></li> <li><a href="javascript:void(0);" type=‘0‘> <img src="http://img.17u.cn/ly/cn/img/zizhuyou/rimage/500_270/2014/1/21/201401211150391745.jpg"></a></li> </ul> </div> </div></body></html>
css代码:
*{margin: 0;padding: 0;}ul{ list-style:none;}body { -webkit-tap-highlight-color: transparent; -webkit-font-smoothing: antialiased; -webkit-user-select: none; -moz-user-select: none; font-size: 14px; line-height: 1.5; color: #333; font-family: arial,sans-serif; margin: 0 auto; max-width: 640px;}.main { background: #f0f0f0; width: 100%;}/* 以下特效CSS */.slider {width:100%; margin:0 auto; overflow:hidden; position:relative;}.slider ul { position:relative;width: 100%;}.slider li:first-child {position: static;}.slider ul li { overflow:hidden; position:absolute; background:#000; top:0px; width: 100%; }.slider ul li img {border:0;width: 100%;display: block;}.slider ul li div {position:absolute; overflow:hidden;}.slider .btnBg {position:absolute; width:100%; height:20px; left:0; bottom:0; background:#000; display:none;}.slider .btn {position:absolute; width:95%; height:23px; padding:0px 10px 0px 10px; right:0; bottom:6px; text-align:right;}.slider .btn span {display:inline-block; _display:inline; _zoom:1; width:25px; height:24px; line-height:24px; text-align:center; _font-size:0; margin-left:5px; cursor:pointer; background:#fff;}.slider .btn span.on {background:#fff;}
javascript代码:
$(function() { jQuery.focus = function(slid) { var sWidth = $(slid).width(); //获取焦点图的宽度(显示面积) var len = $(slid).find("ul li").length; //获取焦点图个数 var index = 0; var picTimer; //以下代码添加数字按钮和按钮后的半透明条,还有上一页、下一页两个按钮 var btn = "<div class=‘btnBg‘></div><div class=‘btn‘>"; for(var i=0; i < len; i++) { var ii = i+1; btn += "<span>"+ii+"</span>"; } //btn += "</div><div class=‘preNext pre‘></div><div class=‘preNext next‘></div>"; $(slid).append(btn); $(slid).find("div.btnBg").css("opacity",0.5); //为小按钮添加鼠标滑入事件,以显示相应的内容 $(slid+" div.btn span").css("opacity",0.4).mouseenter(function() { index = $(slid+" .btn span").index(this); showPics(index); }).eq(0).trigger("mouseenter"); //上一页、下一页按钮透明度处理 $(slid+" .preNext").css("opacity",0.2).hover(function() { $(this).stop(true,false).animate({"opacity":"0.5"},300); },function() { $(this).stop(true,false).animate({"opacity":"0.2"},300); }); //上一页按钮 /*$(slid+" .pre").click(function() { index -= 1; if(index == -1) {index = len - 1;} showPics(index); }); //下一页按钮 $(slid+" .next").click(function() { index += 1; if(index == len) {index = 0;} showPics(index); });*/ //本例为左右滚动,即所有li元素都是在同一排向左浮动,所以这里需要计算出外围ul元素的宽度 //$(slid+" ul").css("width",sWidth * (len)); //$(slid+" ul li").css("width",sWidth); $(slid+" ul li").each(function(index, el) { $(this).css("left",index*sWidth); }); //鼠标滑上焦点图时停止自动播放,滑出时开始自动播放 $(slid).hover(function() { clearInterval(picTimer); },function() { picTimer = setInterval(function() { showPics(index); index++; if(index == len) {index = 0;} },2000); //此4000代表自动播放的间隔,单位:毫秒 }).trigger("mouseleave"); //显示图片函数,根据接收的index值显示相应的内容 function showPics(index) { //普通切换 var nowLeft = -index*sWidth; //根据index值计算ul元素的left值 $(slid+" ul").stop(true,false).animate({"margin-left":nowLeft},300); //通过animate()调整ul元素滚动到计算出的position $(slid+" .btn span").removeClass("on").eq(index).addClass("on"); //为当前的按钮切换到选中的效果 $(slid+" .btn span").stop(true,false).animate({"opacity":"0.4"},300).eq(index).stop(true,false).animate({"opacity":"1"},300); //为当前的按钮切换到选中的效果 } }; });
幻灯片(响应式设计)(jquery实现)
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