标签：html5
<!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>标签：html5
原文地址：http://blog.csdn.net/withiter/article/details/40424321
