Specific implementation of JQuery page image switching and news list scrolling effects_jquery

I recently used the effects of switching left and right pictures on a page and scrolling the news list, which are summarized as follows:

Previous code:

Copy code The code is as follows:

   

       

           

               
• 


               
• 


               
• 


               
• 


           

       

   

   

        新闻中心
       

         

           
• 新闻标题1


           
• 新闻标题2


           
• 新闻标题3


           
• 新闻标题4


           
• 新闻标题5


         

       

   

css文件夹包含一个样式表css.css：

复制代码 代码如下:

/* reset.css */
body{background:#fff;color:#444;height:100%;line-height:1.4;}
html{height:100%;overflow-y:scroll;-webkit-text-size-adjust:none;}
body,input,button,textarea,select,h1,h2,h3,h4,h5,h6{font:12px/1.5 Arial,Tahoma,Helvetica,"5b8b4f53",sans-serif;}
body,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,button,textarea,blockquote,th,td{margin:0;padding:0;}
img{vertical-align:bottom;}
/* base.css */
a:link,a:visited,a:hover,a:active{cursor:pointer;text-decoration:none;}
a:active,a:focus {-moz-outline:none;outline:none;ie-dummy:expression(this.hideFocus=true);}
a:hover {text-decoration:underline;}
li {list-style:none;}
ol li {display:inline;}
/*common.css*/
.outer{position:relative; overflow:hidden; background:url(../images/line.gif) repeat-x bottom; border-bottom:solid 1px #fff; margin:0 auto;}
.banner{position:absolute; left:50%; top:0; margin-left:-990px; height:400px; width:1980px;overflow:hidden;}
    .flash_img {
        overflow: hidden;
        width: 1980px;
        height: 400px;
        position: relative
    }
    .banner{height:400px;}

    .flash_img .img-box {
        position: absolute;
    }
    .flash_img .img-box li{float:left;}

    .flash_img img {
        display: block;
    }

    .flash_item {
        position: absolute;
        right: 510px;
        bottom: 10px;
        height: 12px;
    }

    .flash_item li {
        background:url(../images/flash_item.png) no-repeat right;
        color: #D94B01;
        cursor: pointer;
        float: left;
        font-size: 12px;
        height: 12px;
        line-height: 12px;
        margin-left: 15px;
        text-align: center;
        width: 12px;
    }

    .flash_item li.on
    {
        background-position:left;
        color: #FFFFFF;
        font-weight: bold;
        height: 12px;
        line-height: 12px;
        width: 12px;
    }

    .flash_item li img {
        display: block
    }   
/*default.css*/
.indexNews{width:700px; height:29px; bottom:0; left:50%; position:absolute; margin-left:-480px; z-index:999;}
.indexNews strong{color:#409dd9;float: left;}
.indexNews strong a{color:#409dd9;text-decoration:none;}
.indexNews .core{height:18px; line-height:18px; overflow:hidden;}
.indexNews .core span{color:#409dd9; margin-right:20px;}
.indexNews .core a{margin-left:10px;color:#666;}
.outer{height:440px;}

The js folder contains three files: jquery-1.7.2.min.js, indexPic.js, kxbdSuperMarquee.js. The first one can be downloaded directly from the Internet, the second one is to switch pictures, and the third one is to scroll the news list.

indexPic.js:

Copy code The code is as follows:

document.writeln("");
document.writeln("");
(function($) {
    $.fn.slideImg = function(settings) {
        settings = jQuery.extend({
            speed: "normal",
            timer: 1000
        }, settings);
        return this.each(function() {
            $.fn.slideImg.scllor($(this), settings);
        });
    };

    $.fn.slideImg.scllor = function($this, settings) {
        var index = 0;
        var scllorer = $(".img-box li", $this);
        var size = scllorer.size();
        var slideW = scllorer.outerWidth();
        var $selItem = $("

", {
            "class": "flash_item",
            html: function() {
                var $selItemHTML = "";
                if (size == 1) {
                    return;
                } else if (size > 1) {
                    for (var i = 0; i < size; i ) {
                        i == 0 ? $selItemHTML = '

' : $selItemHTML = '

';
                    }
                    return $selItemHTML;
                }
            }
        }).appendTo($this);
        var li = $(".flash_item li", $this);
        var showBox = $(".img-box", $this);
        var intervalTime = null;
        li.hover(function() {
            var that = this;
            if (intervalTime) {
                clearInterval(intervalTime);
            }
            intervalTime = setTimeout(function() {
                index = li.index(that);
                ShowAD(index);
            }, 200);
        }, function() {
            clearInterval(intervalTime);
            interval();
        });
        showBox.hover(function() {
            if (intervalTime) {
                clearInterval(intervalTime);
            }
        }, function() {
            clearInterval(intervalTime);
            interval();
        });
        function interval() {
            intervalTime = setInterval(function() {
                ShowAD(index);
                index ;
                if (index == size) {
                    index = 0;
                }
            }, settings.timer);
        }
interval();
var ShowAD = function(i) {
showBox.animate({ "left": -i * slideW }, settings.speed);
li.eq(i) .addClass("on").siblings().removeClass("on");
        };
     }; :

Copy code

The code is as follows:

/**
 * @classDescription 超级Marquee，可做图片导航，图片轮换
 * @author Aken Li(www.kxbd.com)
 * @date 2009-07-27
 * @dependence jQuery 1.3.2
 * @DOM
 *     

 *         

 *              

 *              

 *         

 *     

 * @CSS
 *      #marquee {width:200px;height:50px;overflow:hidden;}
 * @Usage
 *      $('#marquee').kxbdSuperMarquee(options);
 * @options
 *        distance:200,//一次滚动的距离
 *        duration:20,//缓动效果，单次移动时间，越小速度越快，为0时无缓动效果
 *        time:5,//停顿时间，单位为秒
 *        direction: 'left',//滚动方向，'left','right','up','down'
 *        scrollAmount:1,//步长
 *        scrollDelay:20//时长，单位为毫秒
 *        isEqual:true,//所有滚动的元素长宽是否相等,true,false
 *        loop: 0,//循环滚动次数，0时无限
 *        btnGo:{left:'#goL',right:'#goR'},//控制方向的按钮ID，有四个属性left,right,up,down分别对应四个方向
 *        eventGo:'click',//鼠标事件
 *        controlBtn:{left:'#goL',right:'#goR'},//控制加速滚动的按钮ID，有四个属性left,right,up,down分别对应四个方向
 *        newAmount:4,//加速滚动的步长
 *        eventA:'mouseenter',//鼠标事件，加速
 *        eventB:'mouseleave',//鼠标事件，原速
 *        navId:'#marqueeNav', //导航容器ID，导航DOM:

• 1
• 2
,导航CSS:.navOn
 *        eventNav:'click' //导航事件
 */
(function($){

    $.fn.kxbdSuperMarquee = function(options){
        var opts = $.extend({},$.fn.kxbdSuperMarquee.defaults, options);

        return this.each(function(){
            var $marquee = $(this);//滚动元素容器
            var _scrollObj = $marquee.get(0);//滚动元素容器DOM
            var scrollW = $marquee.width();//滚动元素容器的宽度
            var scrollH = $marquee.height();//滚动元素容器的高度
            var $element = $marquee.children(); //滚动元素
            var $kids = $element.children();//滚动子元素
            var scrollSize=0;//滚动元素尺寸
            var _type = (opts.direction == 'left' || opts.direction == 'right') ? 1:0;//滚动类型，1左右，0上下
            var scrollId, rollId, isMove, marqueeId;
            var t,b,c,d,e; //滚动动画的参数,t:当前时间，b:开始的位置，c:改变的位置，d:持续的时间，e:结束的位置
            var _size, _len; //子元素的尺寸与个数
            var $nav,$navBtns;
            var arrPos = [];
            var numView = 0; //当前所看子元素
            var numRoll=0; //轮换的次数
            var numMoved = 0;//已经移动的距离

                                                                                                                                                                                      The size of the element
var navHtml = '

';
if (opts.isEqual) {
_size = $kids[_type?'outerWidth':'outerHeight']();
_len = $kids.length;
scrollSize = _size * _len;
for(var i=0;i<_len;i ){
arrPos.push(i*_size);
navHtml = '
• ' (i 1) '
';
}
}else{
$kids.each(function(i){
arrPos.push(scrollSize) ;
                   scrollSize = $(this)[_type?'outerWidth':'outerHeight'](); });
}
navHtml = '
';

//The total size of the scrolling element is smaller than the container size, no scrolling
rollW: scrollH)) return;
                                // Clone the scroll child element, insert it after the scroll element, and set the width of the scroll element
                         $element.append($kids.clone()).css(_type?'width ':'height',scrollSize*2);

//Rotate navigation
if (opts.navId) {
$nav = $(opts.navId).append(navHtml).hover (Stop, Start);
$ navbtns = $ ('li', $ nav);
$ navbtns.each (function (i) {
$ (this) .Bind (optionnav, functions (){
if(isMove) return;
if(numView==i) return;
rollFunc(arrPos[i]);
                                                      $navBtns.eq(numView).removeClass('navOn ');
numView = i;
$(this).addClass('navOn');
});
          }; | | opts.direction == 'down') {
                                                                                                                                                                                                                                                      ; ':'scrollTop'] = 0;
}

if(opts.isMarquee){
//Scroll starts
//marqueeId = setInterval(scrollFunc, opts.sc rollDelay);
marqueeId = setTimeout( scrollFunc, opts.scrollDelay);
                                                                                                                                    clearInterval(marqueeId);
},
function( )( MarqueeId = setTimeout(scrollFunc, opts.scrollDelay);
🎜>
                                                                                                    .                    $(val).bind(opts. eventA,function(){
                                                                                                                                                                                                                                                                      (){
                                                                                                                                               }
                                                      else{
                                                                                                                                    Cross to stop rotation
$marquee.hover(stop, start );
}

//Control walking forward and backward
if(opts.btnGo){
$.each(opts.b tnGo, function(i,val){
                                                                       val).bind(opts.eventGo,function(){
                                                                                                       rollFunc();
{
stop();
start();
}
                                                     Func(){
var _dir = (opts.direction == 'left' || opts.direction == 'right') ? 'scrollLeft':'scrollTop';

if(opts.isMarquee){
                                                                                                                                                                                                      through ( marqueeId); s.direction == 'up'?1:-1)*opts.scrollAmount ;
                                 else{
                    if(opts.duration){
                        if(t                             isMove = true;
                            var newPos = Math.ceil(easeOutQuad(t,b,c,d));
                            if(t==d){
                                newPos = e;
                            }
                        }else{
                            newPos = e;
                            clearInterval(scrollId);
                            isMove = false;
                            return;
                        }
                    }else{
                        var newPos = e;
                        clearInterval(scrollId);
                    }
                }

                if(opts.direction == 'left' || opts.direction == 'up'){
                    if(newPos>=scrollSize){
                        newPos-=scrollSize;
                    }
                }else{
                    if(newPos<=0){
                        newPos =scrollSize;
                    }
                }
                _scrollObj[_dir] = newPos;

                if(opts.isMarquee){
                    marqueeId = setTimeout(scrollFunc, opts.scrollDelay);
                }else if(t if(scrollId) clearTimeout(scrollId);
scrollId = setTimeout(scrollFunc, opts.scrollDelay);
}else{
isMove = false;
}

};

function rollFunc(pPos){
isMove = true;
var _dir = (opts.direction == 'left' || opts.direction == 'right') ? 'scrollLeft':'scrollTop';
var _neg = opts.direction == 'left' || opts.direction == 'up'?1:-1;

numRoll = numRoll +_neg;
//得到当前所看元素序号并改变导航CSS
if(pPos == undefined&&opts.navId){
$navBtns.eq(numView).removeClass('navOn');
numView +=_neg;
if(numView>=_len){
                        numView = 0;
                    }else if(numView<0){
numView = _len-1;
}
$navBtns.eq(numView).addClass('navOn');
numRoll = numView;
}

var _temp = numRoll<0?scrollSize:0;
t=0;
b=_scrollObj[_dir];
//c=(pPos != undefined)?pPos:_neg*opts.distance;
e=(pPos != undefined)?pPos:_temp+(opts.distance*numRoll)%scrollSize;
if(_neg==1){
if(e>b){
                        c = e-b;
                    }else{
                        c = e+scrollSize -b;
                    }
                }else{
                    if(e>b){
                        c =e-scrollSize-b;
                    }else{
                        c = e-b;
                    }
                }
                d=opts.duration;

                //scrollId = setInterval(scrollFunc, opts.scrollDelay);
                if(scrollId) clearTimeout(scrollId);
                scrollId = setTimeout(scrollFunc, opts.scrollDelay);
            }

            function start(){
                rollId = setInterval(function(){
                    rollFunc();
                }, opts.time*1000);
            }
            function stop(){
                clearInterval(rollId);
            }

            function easeOutQuad(t,b,c,d){
                return -c *(t/=d)*(t-2) + b;
            }

            function easeOutQuint(t,b,c,d){
                return c*((t=t/d-1)*t*t*t*t + 1) + b;
            }

});
};
$.fn.kxbdSuperMarquee.defaults = {
isMarquee:false,//Whether it is Marquee
isEqual:true,//The length and width of all scrolling elements Whether they are equal, true, false
loop: 0, //The number of loop scrolling, infinite at 0
newAmount: 3, //The step size of accelerated scrolling
eventA:'mousedown', //Mouse event, Acceleration
eventB:'mouseup', //Mouse event, original speed
isAuto:true,//Whether to automatically rotate
time:5,//Pause time in seconds
duration:50 , //Easing effect, single movement time, the smaller the speed, the faster. When it is 0, there is no easing effect
eventGo:'click', //Mouse event, move forward and backward
direction: ' left',//Scroll direction, 'left','right','up','down'
scrollAmount:1,//Step size
scrollDelay:10,//Duration
eventNav:' click'//Navigation event
};

$.fn.kxbdSuperMarquee.setDefaults = function(settings) {
$.extend( $.fn.kxbdSuperMarquee.defaults, settings);
};

})(jQuery);

Icon for the images folder: