dong/拖拽.html at gh-pages · wxd123666/dong · GitHub

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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>拖拽</title>
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0">
<style>
#div1{ width:100px; height:100px; background:red; position:absolute; left:0; top:0;}
#div2{ width:100px; height:100px; background:blue; position:absolute; right:0; top:0;}
</style>
<script>
function drag(oDiv){
	var x=0;
	var y=0;
	oDiv.addEventListener('touchstart',function(ev){
		var disX=ev.targetTouches[0].pageX-x;
		var disY=ev.targetTouches[0].pageY-y;

		var id=ev.targetTouches[0].identifier;

		function fnMove(ev){
			if(ev.targetTouches[0].identifier==id){
				x=ev.targetTouches[0].pageX-disX;
				y=ev.targetTouches[0].pageY-disY;
				oDiv.style.transform='translate('+x+'px,'+y+'px)';
			}
		}
		function fnEnd(ev){
			if(ev.changedTouches[0].identifier==id){
				document.removeEventListener('touchmove',fnMove,false);
				document.removeEventListener('touchend',fnEnd,false);
			}
		}

		document.addEventListener('touchmove',fnMove,false);
		document.addEventListener('touchend',fnEnd,false);

		ev.preventDefault();
	},false);
}
document.addEventListener('DOMContentLoaded',function(){
	//var oDiv=document.querySelector('#div1');

	//drag(oDiv);

	var aDiv=document.querySelectorAll('div');
	for(var i=0; i<aDiv.length; i++){
		drag(aDiv[i]);
	}
},false);
</script>
</head>

<body>
<div id="div1"></div>
<div id="div2"></div>
</body>
</html>