封装运动框架

function getStyle(obj,name){ if(obj.currentStyle){ return obj.currentStyle[name]; }else{ return getComputedStyle(obj,false)[name]; }}function move(obj,json,options){ var options=options || {}; var duration=options.duration || 800; var easing=options.easing || 'linear'; var n=0; var start={}; var dis={}; var count=Math.ceil(duration/30); //{top:0,left:0} for(name in json){ start[name]=parseFloat(getStyle(obj,name)); dis[name]=json[name]-start[name]; } clearInterval(obj.timer); obj.timer=setInterval(function(){ n++; for(name in json){ switch (easing){ case 'linear': var a=n/count; var cur=start[name]+dis[name]*a; break; case 'ease-out': var a=1-n/count; var cur=start[name]+dis[name]*(1-a*a*a); break; case 'ease-in': var a=n/count; var cur=start[name]+dis[name]*a*a*a; break; } if(name=='opacity'){ obj.style[name]=cur; }else{ obj.style[name]=cur+'px'; } } if(n==count){ clearInterval(obj.timer); options.complete && options.complete(); } },30);}

以上这篇无限循环轮播图之运动框架(原生JS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。