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  • 高级轮播


    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0" />  
        <title>轮播</title>
        <style>
    *{margin: 0;padding: 0;list-style: none;}
    .clearfix:before, .clearfix:after {
        content: "";
        display: table;
    }
    .clearfix:after {
        clear: both;
    }
    .clearfix {
        *zoom: 1; /*IE/7/6*/
    }

    #marquee5{
    100%;
    max- 750px;
    height: 61px;
    overflow: hidden;
    position: absolute;
    top: 6.3rem;
    }
    #marquee5 ul li{100%;height:61px;}
    #marquee5 ul li img{100%;vertical-align:top;}

    @media only screen and (max-device-415px){
       #marquee5{top:5.9rem;height:35px;}
       #marquee5 ul li{height:35px;}

    }

    @media only screen and (max-device-376px){
       #marquee5{top:5.3rem;height:33px;}
       #marquee5 ul li{height:33px;}


    }

    @media only screen and (max-device-321px){
       #marquee5{top:4.6rem;}

    }
    </style>
    </head>
    <body>
       <div id="marquee5">
            <ul>
                <li><img src="http://img63.ddimg.cn/upload_img/00768/kaixueji/tttt_02-1557904790.png" alt="童装童鞋"></li>
                <li><img src="http://img62.ddimg.cn/upload_img/00768/kaixueji/www_02-1557904815.png" alt="玩具"></li>

            </ul>
        </div>
    </body>
    </html>
    <script src="http://code.jquery.com/jquery-2.1.1.min.js"></script>
    <script>

    (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

                //防止滚动子元素比滚动元素宽而取不到实际滚动子元素宽度
                $element.css(_type?'width':'height',10000);
                //获取滚动元素的尺寸
                var navHtml = '<ul>';
                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 += '<li>'+ (i+1) +'</li>';
                    }
                }else{
                    $kids.each(function(i){
                        arrPos.push(scrollSize);
                        scrollSize += $(this)[_type?'outerWidth':'outerHeight']();
                        navHtml += '<li>'+ (i+1) +'</li>';
                    });
                }
                navHtml += '</ul>';
                
                //滚动元素总尺寸小于容器尺寸,不滚动
                if (scrollSize<(_type?scrollW:scrollH)) return;
                //克隆滚动子元素将其插入到滚动元素后,并设定滚动元素宽度
                $element.append($kids.clone()).css(_type?'width':'height',scrollSize*2);
                
                //轮换导航
                if (opts.navId) {
                    $nav = $(opts.navId).append(navHtml).hover( stop, start );
                    $navBtns = $('li', $nav);
                    $navBtns.each(function(i){
                        $(this).bind(opts.eventNav,function(){
                            if(isMove) return;
                            if(numView==i) return;
                            rollFunc(arrPos[i]);
                            $navBtns.eq(numView).removeClass('navOn');
                            numView = i;
                            $(this).addClass('navOn');
                        });
                    });
                    $navBtns.eq(numView).addClass('navOn');
                }
                
                //设定初始位置
                if (opts.direction == 'right' || opts.direction == 'down') {
                    _scrollObj[_type?'scrollLeft':'scrollTop'] = scrollSize;
                }else{
                    _scrollObj[_type?'scrollLeft':'scrollTop'] = 0;
                }
                
                if(opts.isMarquee){
                    //滚动开始
                    //marqueeId = setInterval(scrollFunc, opts.scrollDelay);
                    marqueeId = setTimeout(scrollFunc, opts.scrollDelay);
                    //鼠标划过停止滚动
                    $marquee.hover(
                        function(){
                            clearInterval(marqueeId);
                        },
                        function(){
                            //marqueeId = setInterval(scrollFunc, opts.scrollDelay);
                            clearInterval(marqueeId);
                            marqueeId = setTimeout(scrollFunc, opts.scrollDelay);
                        }
                    );
                    
                    //控制加速运动
                    if(opts.controlBtn){
                        $.each(opts.controlBtn, function(i,val){
                            $(val).bind(opts.eventA,function(){
                                opts.direction = i;
                                opts.oldAmount = opts.scrollAmount;
                                opts.scrollAmount = opts.newAmount;
                            }).bind(opts.eventB,function(){
                                opts.scrollAmount = opts.oldAmount;
                            });
                        });
                    }
                }else{
                    if(opts.isAuto){
                        //轮换开始
                        start();
                        
                        //鼠标划过停止轮换
                        $marquee.hover( stop, start );
                    }
                
                    //控制前后走
                    if(opts.btnGo){
                        $.each(opts.btnGo, function(i,val){
                            $(val).bind(opts.eventGo,function(){
                                if(isMove == true) return;
                                opts.direction = i;
                                rollFunc();
                                if (opts.isAuto) {
                                    stop();
                                    start();
                                }
                            });
                        });
                    }
                }
                
                function scrollFunc(){
                    var _dir = (opts.direction == 'left' || opts.direction == 'right') ? 'scrollLeft':'scrollTop';
                    
                    if(opts.isMarquee){
                        if (opts.loop > 0) {
                            numMoved+=opts.scrollAmount;
                            if(numMoved>scrollSize*opts.loop){
                                _scrollObj[_dir] = 0;
                                return clearInterval(marqueeId);
                            }
                        }
                        var newPos = _scrollObj[_dir]+(opts.direction == 'left' || opts.direction == 'up'?1:-1)*opts.scrollAmount;
                    }else{
                        if(opts.duration){
                            if(t++<d){
                                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<d){
                        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,//是否为Marquee
            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
            newAmount:3,//加速滚动的步长
            eventA:'mousedown',//鼠标事件,加速
            eventB:'mouseup',//鼠标事件,原速
            isAuto:true,//是否自动轮换
            time:5,//停顿时间,单位为秒
            duration:50,//缓动效果,单次移动时间,越小速度越快,为0时无缓动效果
            eventGo:'click', //鼠标事件,向前向后走
            direction: 'left',//滚动方向,'left','right','up','down'
            scrollAmount:1,//步长
            scrollDelay:10,//时长
            eventNav:'click'//导航事件
        };
        
        $.fn.kxbdSuperMarquee.setDefaults = function(settings) {
            $.extend( $.fn.kxbdSuperMarquee.defaults, settings );
        };
        
    })(jQuery);


    $(function(){

        //一次滚动一屏
        $('#marquee5').kxbdSuperMarquee({
            isEqual:false,
            distance:$("#marquee5").height(),
            time:3,
            direction:'up'
        });
    });
    </script>

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  • 原文地址:https://www.cnblogs.com/water-wf/p/10949291.html
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