一个简单的HTML5摇一摇实例

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/

DTD/xhtml1-strict.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<meta http-equiv="Cache-Control" content="no-cache"/>

<meta name="viewport" content="width=device-width,initial-scale=1.0,minimum-scale=1.0,

 maximum-scale=2.0"/>

<meta name="MobileOptimized" content="240"/>

<title>HTML摇一摇。。。

</title>

<script type="text/javascript">

       var SHAKE_THRESHOLD = 3000;

    var last_update = 0;

    var x=y=z=last_x=last_y=last_z=0;

	var  media; 

	function init(){

	last_update=new Date().getTime();

	media= document.getElementById("musicBox");

	if (window.DeviceMotionEvent) {

	window.addEventListener('devicemotion',deviceMotionHandler, false);

	} else{

	alert('not support mobile event');

	}

	}

    function deviceMotionHandler(eventData) {    

    var acceleration =eventData.accelerationIncludingGravity;  

    var curTime = new Date().getTime();

    if ((curTime - last_update)> 100) {

		var diffTime = curTime -last_update;

		last_update = curTime;

		x = acceleration.x;

		y = acceleration.y;

		z = acceleration.z;

		var speed = Math.abs(x +y + z - last_x - last_y - last_z) /

diffTime * 10000;   

		if (speed > SHAKE_THRESHOLD) {

			alert("shaked");

		}

		last_x = x;

		last_y = y;

		last_z = z;

		}    

    }  

</script>

</head> 

<body onload="init()">

html5手机摇一摇功能，摇一摇试试看

</body> 

</html>
巴特西

一个简单的HTML5摇一摇实例

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