js模拟iphone4手机滑锁功能特效代码-JS特效-爱易网页

js模拟iphone4手机滑锁功能特效代码

日期：2014-05-18　浏览次数：20307 次

以下是程序代码

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>iPhone手机解锁效果</title>
<style type="text/css">
#iphone{position:relative;width:426px;height:640px;margin:10px auto;background:url(http://js.aiyiweb.com/img/201108/111.jpg) no-repeat;}
#lock{position:absolute;left:50%;bottom:33px;width:358px;height:62px;margin-left:-179px;}
#lock span{position:absolute;width:93px;height:62px;cursor:pointer;background:url(http://js.aiyiweb.com/img/201108/btn.jpg) no-repeat;}
</style>
<script type="text/javascript">
window.onload = function ()
{
 var iPhone = document.getElementById("iphone");
 var oLock = document.getElementById("lock");
 var oBtn = oLock.getElementsByTagName("span")[0];
 var disX = 0;
 var maxL = oLock.clientWidth - oBtn.offsetWidth;
 var oBg = document.createElement("img");
 oBg.src = "http://js.aiyiweb.com/img/201108/222.jpg";//预加载下第二张背景，其它没什么大用。
 oBtn.onmousedown = function (e)
 {
  var e = e || window.event;
  disX = e.clientX - this.offsetLeft;
  
  document.onmousemove = function (e)
  {
   var e = e || window.event;
   var l = e.clientX - disX;
   
   l < 0 && (l = 0);
   l > maxL && (l = maxL);
   
   oBtn.style.left = l + "px";
   
   oBtn.offsetLeft == maxL && (iPhone.style.background = "url("+ oBg.src +")", oLock.style.display = "none");
   return false;
  };
  document.onmouseup = function ()
  {
   document.onmousemove = null;
   document.onmouseup = null;
   oBtn.releaseCapture && oBtn.releaseCapture();
   
   oBtn.offsetLeft > maxL / 2 ?
    startMove(maxL, function ()
    {
     iPhone.style.background = "url("+ oBg.src +")";
     oLock.style.display = "none"
    }) :
    startMove(0)
  };
  this.setCapture && this.setCapture();
  return false
 };
 function startMove (iTarget, onEnd)
 {
  clearInterval(oBtn.timer);
  oBtn.timer = setInterval(function ()
  {
   doMove(iTarget, onEnd)
  }, 30)
 }
 function doMove (iTarget, onEnd)
 {
  var iSpeed = (iTarget - oBtn.offsetLeft) / 5;
  iSpeed = iSpeed > 0 ? Math.ceil(iSpeed) : Math.floor(iSpeed);
  iTarget == oBtn.offsetLeft ? (clearInterval(oBtn.timer), onEnd && onEnd()) : oBtn.style.left = iSpeed + oBtn.offsetLeft + "px"
 }
};
</script>
</head>
<body>
<div id="iphone">
 <div id="lock"><span></span></div>
</div>
</body>
</html>

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js模拟iphone4手机滑锁功能特效代码

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