// 运用HTML5的deviceMotion，调用重力感应事件
if(window.DeviceMotionEvent){
document.addEventListener('devicemotion', deviceMotionHandler,false)
}
var speed =30;
var x = y = z = lastX = lastY = lastZ =0;
function deviceMotionHandler(eventData){
var acceleration = event.accelerationIncludingGravity;
x = acceleration.x;
y = acceleration.y;
z = acceleration.z;
if(Math.abs(x-lastX)>speed ||Math.abs(y-lastY)>speed ||Math.abs(z-lastZ)>speed ){
//这里是摇动后要执行的方法yaoAfter();
}
lastX = x;
lastY = y;
lastZ = z;
}functionyaoAfter(){
//do something
}
