<!DOCTYPE html>
<html>
<head>
<title>Accelerometer插件</title>
<script type="text/javascript" charset="utf-8" src="phonegap.js"></script>
<script type="text/javascript" charset="utf-8">
//watch id 是当前“watchAcceleration”的引用
var watchID = null;
//等待加载PhoneGap
document.addEventListener("deviceready", onDeviceReady, false);
// Phonegap加载完毕
function onDeviceReady() {
startWatch();
}
//开始监视加速度
function startWatch() {
//每隔3秒钟更新一次加速度数据
var options={ frequency: 3000 };
watchID=navigator.accelerometer.watchAcceleration(onSuccess,onError, options);
}
//中止监视加速度
function stopWatch() {
if (watchID) {
navigator.accelerometer.clearWatch(watchID);
watchID = null;
}
}
//onSuccess: 获取当前加速度数据的快照
function onSuccess(acceleration) {
var element = document.getElementById('accelerometer');
element.innerHTML = 'Acceleration X: '+ acceleration.x + '<br />' +
'Acceleration Y: '+acceleration.y + '<br />' +
'Acceleration Z: '+acceleration.z + '<br />' +
'Timestamp: '+ acceleration.timestamp + '<br />';
}
// onError: 获取加速度失败
function onError() {
alert('onError!');
}
</script>
</head>
<body>
<div id="accelerometer">Waiting for accelerometer...</div>
</body>
</html>
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