完美JQuery图片切换效果的简单实现

css：

body { font-family:"Microsoft Yahei"; } body,ul,li,img,h3,dl,dd,dt,h1{margin:0px;padding:0px;list-style:none;} img{vertical-align: top;} /***大图切换***/ .scroll_view{margin: 0px auto;overflow:hidden;position: relative;} .photo_view li{position:absolute;width: 100%;} .photo_view li em,.photo_view li h3{position: absolute;bottom: 0px;z-index: 1;height: 35px;line-height: 35px;width: 100%;left: 0px;} .photo_view li em{z-index: 1;background:rgba(0,0,0,0.5);filter: progid:DXImageTransform.Microsoft.gradient( GradientType = 0,startColorstr = '#50000000',endColorstr = '#50000000');_background:#000;} .photo_view li h3{z-index: 2;text-indent: 1em;font-weight: normal;} .photo_view li h3 a{color:#fff;} .photo_view li h3 a:hover{color:#f60;} .small_photo{position: absolute;bottom: 40px;right: 10px;cursor: pointer;z-index: 4;} .small_photo li {float: left;padding-right: 10px;} .small_photo li img{width: 80px;height: 35px;border: solid 2px #ccc;border-radius: 2px;} .small_photo li.active img{border: solid 2px #f60;}

html：

<!-- start:大图切换 --> <div> <ul> <li><img src="https://www.jb51.net/images/ad1.jpg" alt="" /><em></em><h3><a href="javascript:void(0);">图片效果1</a></h3></li> <li><img src="https://www.jb51.net/images/ad2.jpg" alt="" /><em></em><h3><a href="javascript:void(0);">图片效果2</a></h3></li> <li><img src="https://www.jb51.net/images/ad3.jpg" alt="" /><em></em><h3><a href="javascript:void(0);">图片效果3</a></h3></li> <li><img src="https://www.jb51.net/images/ad4.jpg" alt="" /><em></em><h3><a href="javascript:void(0);">图片效果4</a></h3></li> </ul> <ul></ul> </div> <!-- End:大图切换 -->

js：

$.fn.extend({ imgScroll:function(options){ var def={phtot_parent:$(".scroll_view"),photo_view:$(".photo_view"),small_photo:$(".small_photo"),speed:800,isauto:true,width:800,height:349}, opt=$.extend({},def,options), $photo_view=opt.photo_view, $small_photo=opt.small_photo, speed=opt.speed, isauto=opt.isauto, index=0, _length=$photo_view.find("li").length, strTime=null; opt.phtot_parent.css({width:opt.width,height:opt.height}); $photo_view.find("li:not(:first)").hide()//.find("img").hide(); $photo_view.find("li").each(function(i){ $small_photo.append('<li><img src="'+$(this).find("img").attr("src")+'" alt="" /></li>'); }) $small_photo.find("li:first").addClass("active"); //小图鼠标动作 $small_photo.find("li").bind("mouseenter",function(){ clearInterval(strTime); if(index!=$(this).index()){ index=$(this).index(); animate(index) } }).bind("mouseleave",function(){ if(isauto){ start(); } }); //大图悬停动作 $photo_view.find("li").bind("mouseenter",function(){ clearInterval(strTime); }).bind("mouseleave",function(){ if(isauto){ start(); } }); //自动播放 if(isauto){ start(); } //启动自动播放 function start(){ strTime=setInterval(function(){ index >= _length-1 ? index=0 : index++; animate(index); },speed); } //动画效果 function animate(_index){//console.log(_index) $small_photo.find("li").eq(_index).addClass('active').siblings().removeClass("active");//改变小图导航样式 $photo_view.find("li").eq(_index).css("z-index",1).siblings().css("z-index",0);//控制absolute的层级 $photo_view.find("li").eq(_index).show().find("img").css({"opacity": 0}); //装大图的opacity设置为0 $photo_view.find("li").eq(_index).find("img").animate({opacity:1},300,function(){ $(this).removeAttr("style");//动画之后删除opacity $photo_view.find("li").eq(_index).show().siblings().hide();//显示大图 });//展示当前显示动画 } } });

<script type="text/javascript"> $(function(){$("scroll_view").imgScroll({photo_view:$(".photo_view"),small_photo:$(".small_photo"),speed:3000,isauto:true}); }) </script>

以上这篇完美JQuery图片切换效果的简单实现就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持脚本之家。

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