jQuery实现360°全景拖动展示

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我是靠谱客的博主不安小蝴蝶，最近开发中收集的这篇文章主要介绍jQuery实现360°全景拖动展示，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

CSS

复制代码代码如下:

html,body{background:#333;}

 #loading{left:0;top:0;width:100%;height:100%;background:#333;color:#fff;}

 #loading span{left:45%;top:40%;font:normal 50px Arial;color:#fff;}

 #demo{left:50%;top:50%;margin-left:-512px;margin-top:-384px;width:1024px;height:768px;}

 #demo img{border-radius:8px;border:5px solid #555;}

 .back{font-size:18px;line-height:130%;padding:8px 20px;color:#fff;}

 #back-home{left:0px;top:0px;background:#35916D;}

 #back-article{right:0px;top:0px;background:#444;}

 #back-download{right:0px;bottom:0px;background:#CE565D;}

HTML

复制代码代码如下:

<div id="demo" class="px hide"><img /></div>

<div id="loading" class="px"><span class="pa"></span></div>

复制代码代码如下:

});
</script>

drag.js

复制代码代码如下:

(function($){

    $.fn.drag360=function(images){

        var mdx,mmx,isDrag=false,unitStep=40,current=0;

        var that=$(this);

        var length=images.length;

        //触摸  

        that.on('touchstart',function(e){

            var touch = e.originalEvent;

                mdx = touch.changedTouches[0].pageX;

                isDrag=true;

        }).on('touchmove',function(e){

            e.preventDefault();

            touch = e.originalEvent.touches[0]||e.originalEvent.changedTouches[0];

            mmx=touch.pageX;

            if(isDrag){

                if(Math.abs(mmx-mdx)>unitStep){

                    if(mmx-mdx>0){

                        current=current+1; 

                    }else{

                        current=current-1;

                    }

                    mdx=mmx;

                    if(current<0)current=length-1;

                    if(current>length-1)current=0;

                    that.attr("src",images[current]);

                }

            }

        }).on('touchend',function(e){

            isDrag=false;

        });

        //拖动

        that.on('mousedown',function(e){

            mdx=e.pageX;

            isDrag=true;

        }).on('mousemove',function(e){

            mmx=e.pageX;

            if(isDrag){

                if(Math.abs(mmx-mdx)>unitStep){

                    current=current+(mmx-mdx>0?1:-1);

                    mdx=mmx;

                    if(current<0)current=length-1;

                    if(current>length-1)current=0;

                    that.attr("src",images[current]);

                }

            }

            return false;

        })

        $(document).on('mouseup',function(e){

            isDrag=false;

        });

        $(document).on('mouseleave',function(e){

            isDrag=false;

        });

        return this;

    };

})(jQuery);