支持ie8的轮播图

来源：互联网发布：网络客服提成方案编辑：程序博客网时间：2024/06/05 21:14

最近在做一个活动，其中产品给的需求是：一共是8张图片，开始显示2张，点击第3张，这时候页面显示3张。中间为大图，两边是小图。好了，直接贴代码了;

//轮播JS  /*未元素的首尾添加补白*/    var $panels= $('#slider .scrollContainer > li');    var $parent=$panels.parent();//或许当前li的最近一级的父元素    var $length=$panels.length;//获取指定length值    var $first=$panels.eq(0).clone().addClass("panel cloned").attr("id",'panel_'+($length+1));//获取第一个元素并复制    var $last=$panels.eq($length-1).clone().addClass("cloned").attr("id",'panel_0');;//获取最后一个元素并复制    $parent.append($first);//将li序列中的第一个添加到ul元素中的最后一个  $("#slide02").scrollLeft(0);    $parent.prepend($last);//将li序列中的最后一个添加到ul元素中的第一个    var totalPanels         = $(".scrollContainer").children().size();//所有子元素的数字，滚动元素的个数 7    var regWidth            = $(".panel").css("width");//获取li元素的宽度    var regImgWidth         = $(".panel img").css("width");//获取其中图片的宽度    var movingDistance      = 195;//每次移动的距离    var curWidth            = 384;//当前中间li的宽度为350px    var curHeight         =753;//当前中间li的高度未312      var curImgWidth  =323;    var curImgHeight  =574;    var curBottom          =0;    var othreMargin         =150;    var othersW           =170;//其他li的宽度    var othersH           =235;//高度    /*var othersImgW           =100%;//其他li的宽度    var othersImgH           =100%;//高度*/  var $panels= $('#slider .scrollContainer > li');//此处作用是将复制进来补白的元素重新赋值    var $container= $('#slider .scrollContainer');    $(".addClass").css({'margin-top':150});    $panels.css({'float' : 'left','position' : 'relative'});    $("#slider").data("currentlyMoving", false);//是否正在运动中    $container.css('width', (($panels[0].offsetWidth+26) * $panels.length) + 60 ).css('left','0');//计算容器的总的宽度 PS：25为margin值 offsetWidth    var scroll = $('#slider .scroll').css('overflow', 'hidden');    function returnToNormal(element) {//li元素返回到正常状态        $(element).animate({ width: othersW,height: othersH,marginTop:othreMargin});        $(element).find("div.contentMain").hide();    };    function growBigger(element) {//当前元素之间变大        $(element).addClass("current").animate({ width: curWidth,height:curHeight,marginTop:curBottom}).siblings().removeClass("current")        .end();        $(element).find("div.contentMain").show();    }    //direction true = right, false = left    function change(direction) {        //if not at the first or last panel        if((direction && !(curPanel < totalPanels-3)) || (!direction && (curPanel <= 1))) {            return false;        }           if (direction &&curPanel>0) {            $("#slider .prev").show();            $("#slider .prev").text(curPanel);            $("#slider .next").text(curPanel+2);            if(curPanel+2==9){                $("#slider .next").hide();            }        } if (!direction) {            if (curPanel>2) {                $("#slider .next").show();                $("#slider .prev").text(curPanel-2);                $("#slider .next").text(curPanel);            } else {                $("#slider .prev").text("");                $("#slider .prev").css("display","none");                $("#slider .next").text(curPanel);            }        }        //if not currently moving        if (($("#slider").data("currentlyMoving") == false)) {            $("#slider").data("currentlyMoving", true);            var next         = direction ? curPanel + 1 : curPanel - 1;            var leftValue    = $(".scrollContainer").css("left");            var movement     = direction ? parseFloat(leftValue, 10) - movingDistance : parseFloat(leftValue, 10) + movingDistance;            $(".scrollContainer").stop().animate({"left": movement}, function() {                $("#slider").data("currentlyMoving", false);            });            returnToNormal("#panel_"+curPanel);            growBigger("#panel_"+next);            curPanel = next;            //remove all previous bound functions            $("#panel_"+(curPanel+1)).unbind();                //go forward            $("#panel_"+(curPanel+1)).click(function(){ change(true); });            //remove all previous bound functions                                                                       $("#panel_"+(curPanel-1)).unbind();            //go back            $("#panel_"+(curPanel-1)).click(function(){ change(false); });             //remove all previous bound functions            $("#panel_"+curPanel).unbind();        }    }    // Set up "Current" panel and next and prev 设置当前元素和上下    growBigger("#panel_1");     var curPanel = 1;    $("#panel_"+(curPanel+1)).click(function(){ change(true);return false;});    $("#panel_"+(curPanel-1)).click(function(){ change(false);return false;});    //when the prev/next arrows are clicked    // $("#slider .next").click(function(){ change(true);});       // $("#slider .prev").click(function(){ change(false);});    $(window).keydown(function(event){//键盘方向键控制        switch (event.keyCode) {            case 13: //enter                $(".next").click();            break;            case 37: //prev arrow                $(".prev").click();            break;            case 39: //next arrow                $(".next").click();            break;        }    });   //轮播JS结束1
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html:

<!-- 轮播开始 -->            <div class="btnMode" id="slider">                    <a href="javascript:void(0);" class="prev btn"></a>                    <div class="scroll">                            <ul class="scrollContainer">                            <li class="panel addClass" id="panel_1">                                <a href="javascript:;" class="inside" >                                    <img  alt="" src="b01.jpg" class="cur_img"/>                                    <!-- <span>第一张</span> -->                                </a>                                <div class="contentMain">                                <div class="content1">                                    <img src="y1.png" class="y1">                                    <img src="y2.png" class="y2">                                    <span><img src="hand.png"></span>                                </div>                                </div>                            </li>                            <li class="panel addClass" id="panel_2">                                <a href="javascript:;" class="inside" >                                    <img  alt="" src="b02.jpg" class="cur_img "/>                                    <!-- <span>第二张</span> -->                                </a>                                <div class="contentMain">                                <div class="content2">                                    <img src="y1.png" class="y1">                                    <img src="y2.png" class="y2">                                    <span><img src="hand.png"></span>                                </div>                                </div>                            </li>                            <li class="panel addClass" id="panel_3">                                <a href="javascript:;" class="inside" >                                    <img  alt="" src="b03.jpg" class="cur_img"/>                                    <!-- <span>第三张</span> -->                                </a>                                <div class="contentMain">                                <div class="content3">                                    <img src="y1.png" class="y1">                                    <img src="y2.png" class="y2">                                    <span><img src="hand.png"></span>                                </div>                                </div>                            </li>                            <li class="panel current addClass" id="panel_4">                                <a href="javascript:;" class="inside" >                                    <img  alt="" src="b04.jpg" class="cur_img"/>                                    <!-- <span>第四张</span> -->                                </a>                                <div class="contentMain">                                <div class="content4">                                    <img src="y1.png" class="y1">                                    <img src="y2.png" class="y2">                                    <span><img src="hand.png"></span>                                </div>                                </div>                            </li>                            <li class="panel addClass" id="panel_5">                                <a href="javascript:;" class="inside" >                                    <img  alt="" src="b05.jpg" class="cur_img"/>                                    <!-- <span>第五张</span> -->                                </a>                                <div class="contentMain">                                <div class="content5">                                    <img src="y1.png" class="y1">                                    <img src="y2.png" class="y2">                                    <span><img src="hand.png"></span>                                </div>                                </div>                            </li>                            <li class="panel addClass" id="panel_6">                                <a href="javascript:;" class="inside" >                                    <img  alt="" src="b06.jpg" class="cur_img"/>                                    <!-- <span>第六张</span> -->                                </a>                                <div class="contentMain">                                <div class="content6">                                    <img src="y1.png" class="y1">                                    <img src="y2.png" class="y2">                                    <span><img src="hand.png"></span>                                </div>                                </div>                            </li>                            <li class="panel addClass" id="panel_7">                                <a href="javascript:;" class="inside" >                                    <img  alt="" src="b07.jpg" class="cur_img"/>                                    <!-- <span>第七张</span> -->                                </a>                                <div class="contentMain">                                <div class="content7">                                    <img src="y1.png" class="y1">                                    <img src="y2.png" class="y2">                                    <span><img src="hand.png"></span>                                </div>                                </div>                            </li>                            <li class="panel  addClass" id="panel_8">                                <a href="javascript:;" class="inside" >                                    <img  alt="" src="b08.jpg" class="cur_img"/>                                    <!-- <span>第八张</span> -->                                </a>                                <div class="contentMain">                                <div class="content8">                                    <img src="y1.png" class="y1">                                    <img src="y2.png" class="y2">                                    <span><img src="hand.png"></span>                                </div>                                </div>                            </li>                             <li class="panel addClass" id="panel_9">                                <a href="javascript:;" class="inside" >                                    <img  src="z.jpg" class="cur_img"/>                                    <!-- <span>第十张</span> -->                                </a>                                    <div class="contentMain">                                <div class="content1">                                    <img src="y1.png" class="y1">                                    <img src="y2.png" class="y2">                                    <span><img src="hand.png"></span>                                </div>                                </div>                            </li>                        </ul>                    </div>            <a href="javascript:void(0);" class="next btn">2</a>     </div>            <!-- 轮播结束 -->1
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本来为了说的明白做了个Git效果图。但是太大了。上传失败。等下次做个小点的再穿上来吧。

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