• 淡入淡出效果模板 js


    html文件中:

     1 <!DOCTYPE html>
     2 <html>
     3     <head>
     4         <meta charset="utf-8" />
     5         <title>jQuery Slide</title>
     6         <link href="css/jquery-slide.css" rel="stylesheet" media="screen">
     7     </head>
     8     
     9     <body>
    10         <div class="slide-pic">
    11             <ul class="slide-viewport">
    12                 <li style="z-index:2;">
    13                     <a href="javascript:void(0);">
    14                         <img src="images/sample1.jpg" width="600" height="300" alt="">
    15                     </a>
    16                 </li>
    17                 <li>
    18                     <a href="javascript:void(0);">
    19                         <img src="images/sample2.jpg" width="600" height="300" alt="">
    20                     </a>
    21                 </li>
    22                 <li>
    23                     <a href="javascript:void(0);">
    24                         <img src="images/sample3.jpg" width="600" height="300" alt="">
    25                     </a>
    26                 </li>
    27             </ul>
    28         </div>
    29         <script src="js/jquery-1.6.2.min.js"></script>
    30         <script src="js/jquery.slide.js"></script>
    31         <script>
    32             $(".slide-pic").slidePic({600,height:300,autoSlideTime:2000,controllerLeft:true});<!--此处只能是四个参数-->
    33         </script>
    34     </body>
    35 
    36 </html>

    css样式:

     1 .slide-pic ul,.slide-pic li,.slide-pic img{margin:0;padding:0;border:0;vertical-align:top;}
     2 .slide-pic{position:relative;overflow:hidden;}
     3 .slide-pic .slide-viewport li{position:absolute;left: 0;top:0;list-style:none;}
     4 /* 底部控制器样式 */
     5 .slide-pic .controller-bottom{left:50%;bottom:10px;position:absolute;z-index:99;}
     6 .slide-pic .controller-bottom li{background:url("../images/focus-img-button.png") no-repeat 0 0;cursor:pointer;height:9px;float:left;margin-right:10px;overflow:hidden;width:9px;
    _background-image:url("../images/focus-img-button-png8.png");} 7 .slide-pic .controller-bottom li.current {background-position:0 -9px;} 8 /* 两侧控制器样式 */ 9 .slide-pic .controller-side-left,.slide-pic .controller-side-right{ 10 position:absolute;height:40px;width:20px;top:50%;margin-top:-20px;z-index:99;background:rgba(0,0,0,0.3); 11 filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#4c000000,endColorstr=#4c000000);zoom:1;border-radius:0 20px 20px 0;cursor:pointer; 12 background-image:url("../images/slide-arrow.png"); 13 background-position:3px 12px; 14 background-repeat:no-repeat; 15 _background-image:url("../images/slide-arrow-png8.png"); 16 } 17 :root .slide-pic .controller-side-left,:root .slide-pic .controller-side-right{filter:none9;}/*for IE9*/ 18 .slide-pic .controller-side-left{left:0;margin-left:-20px;} 19 .slide-pic .controller-side-right{right:0;border-radius:20px 0 0 20px;background-position:-17px 12px;margin-right:-20px;}

    js文件:

      1 (function ($) {
      2     var settings;
      3 
      4     $.fn.slidePic = function (callerSettings) {
      5         settings = $.extend({//将下面的说有属性的值都合并到全局对象settings中,后面的settings可以调用;
      6              600,
      7             height: 300,
      8             controllerBottom: true,//控制底部的原点的控制按钮是否出现;
      9             controllerLeft: true,//控制左右两侧的按钮是否出现;
     10             autoSlideTime: 5000//图片切换的间隔时间;
     11         }, callerSettings || {});
     12 
     13         //初始化
     14         var picsLength = this.find(".slide-viewport > li").length;//只需要将.slide-viewport改成自己代码中所设置的class即可;
     15         picsLength = parseInt(picsLength);//找到html中存在的li的个数,并将其转换为整型;此处为3
     16 
     17         this.css({
     18              settings.width,
     19             height: settings.height
     20         });
     21 
     22         if (settings.controllerBottom) {
     23             createControllerBottom.call(this, picsLength);//调用创建底部按钮的代码;
     24         }
     25         if (settings.controllerLeft) {
     26             createControllerLeft.call(this);//调用两侧按钮出现的代码;
     27         }
     28 
     29         var controllerBottomHandler = $(".controller-bottom").find("li");//底部按钮中的li元素;
     30         var controllerSideHandler = $(".controller-side-left,.controller-side-right");//选择两侧的按钮;
     31         var controllerSideLeftHandler = $(".controller-side-left");//单独选取左侧的按钮;
     32         var controllerSideRightHandler = $(".controller-side-right");//单独选取右侧的按钮;
     33         var slidePicHandler = this.find("li");//找到左右的li元素;
     34         var preIndex = 0;
     35         var timer = null;
     36         controllerBottomHandler.mouseover(function() {
     37             var index = $(this).index();//获得当前鼠标放在底部按钮上是第几个按钮;
     38             showNext(index);
     39         });
     40         
     41         this.mouseover(function(){//控制两侧的按钮,如果要求显示时,则出现在区域的两侧;
     42             clearTimeout(timer);
     43             controllerSideLeftHandler.stop().animate({marginLeft:0},"normal");
     44             controllerSideRightHandler.stop().animate({marginRight:0},"normal");
     45         }).mouseleave(function() {
     46             timer = setTimeout(function() {
     47                 var index = controllerBottomHandler.filter(".current").index();
     48                 index = (index + 1) % picsLength;
     49                 showNext(index);
     50                 timer = setTimeout(arguments.callee,settings.autoSlideTime);
     51             }, settings.autoSlideTime);
     52                 //鼠标移开时,两侧按钮不显示;
     53             controllerSideLeftHandler.stop().animate({marginLeft:"-20px"},"normal");
     54             controllerSideRightHandler.stop().animate({marginRight:"-20px"},"normal");
     55         }).mouseleave();
     56 
     57 
     58         //当点击两侧的按钮时,控制图片以淡入淡出的效果实现;
     59         controllerSideHandler.click(function(){
     60             var index = controllerBottomHandler.filter(".current").index();//获取当前显示为红色的li元素是第几个,从0开始计数;
     61             if($(this).hasClass("controller-side-left")){//如果当前点击的是左侧的按钮;
     62                 index = (index - 1) % picsLength;//
     63                 if(index < 0){
     64                     index = picsLength + index;
     65                 }
     66             }
     67             if($(this).hasClass("controller-side-right")){//如果当前点击的是右侧的按钮;
     68                 index = (index + 1) % picsLength;
     69             }
     70             showNext(index);
     71         });
     72 
     73 
     74         //根据底部的红色切换,显示下一个图片;
     75         function showNext(index) {
     76             controllerBottomHandler.removeClass("current").eq(index).addClass("current");//使放上去的这个按钮的颜色变为红色;
     77             slidePicHandler.css("zIndex", "").eq(preIndex).css("zIndex", 1).end().eq(index).css({//连续设置几个li的样式;
     78                 "zIndex": 2,
     79                 "opacity": 0
     80             }).stop().animate({//表示前面的li样式设置好后,就停止,然后开始逐渐使图片的透明度变为1(完全显示);
     81                 "opacity": 1
     82             }, "normal");
     83             preIndex = index;
     84         }
     85         
     86         return this;
     87     }
     88 
     89     //创建底部按钮的代码;
     90     var createControllerBottom = function (picsLength) {
     91         var controllerWidth = picsLength * 19; //19为底部控制器圆点的宽度outerWidth
     92         var controllerBottomHtml = "";
     93         for (var i = 0; i < picsLength; i++) {
     94             controllerBottomHtml += "<li></li>"
     95         }
     96         controllerBottomHtml = "<ul class='controller-bottom'>" + controllerBottomHtml + "</ul>";
     97         this.append(controllerBottomHtml);//创建了底部按钮显示的代码;
     98         this.find(".controller-bottom").css({//设置底部按钮的样式,使得默认情况下第一个按钮的眼的为红色;
     99              controllerWidth,
    100             marginLeft: -(controllerWidth / 2)
    101         }).find("li:first").addClass("current")
    102     };
    103 
    104 
    105 
    106     var createControllerLeft = function () {//创建幻灯片两侧的按钮;
    107         var controllerLeftHtml = '<span class="controller-side-left"></span><span class="controller-side-right"></span>';
    108         this.append(controllerLeftHtml);
    109         
    110     };
    111 })(jQuery);

    注意点:images文件夹 和 css文件夹以及 js文件夹实在同一级目录中,而且导入的js库文件版本不要太高,有时会出错,该模板用的jquery文件为:jquery-1.6.2.min.js

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  • 原文地址:https://www.cnblogs.com/laogai/p/3399804.html
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