首先對DeviceMotionEvent進行優化；

去除沒用的代碼，又一次封裝DeviceMotionEven

if(window.DeviceMotionEvent) {
	var speed = 25;//定義一個數值
	var x = y = z = lastX = lastY = lastZ = 0;//重置全部數值
	window.addEventListener(‘devicemotion‘, function(){
		var acceleration =event.accelerationIncludingGravity;//將傳感值賦給acceleration 
		x = acceleration.x;
		y = acceleration.y;
		z = acceleration.z;
		if(Math.abs(x-lastX) > speed || Math.abs(y-lastY) > speed ) {
			// TODO:在此處能夠實現搖一搖之後所要進行的數據邏輯操作  
				 donghua();

		}
		lastX = x;
		lastY = y;
		lastZ = z;
	}, false);
}

因為實際項目中有非常多需求無法非常好的實現。

比方：動畫不運行完成就不能繼續運行DeviceMotionEvent事件；

所以做了進一步優化；

var f=1;
function donghua(){
	//動畫事件
	$(".img").animate({left:‘0‘,opacity:‘1‘},700,function(){f=1;});

}）。
if(window.DeviceMotionEvent) {
	var speed = 25;//定義一個數值
	var x = y = z = lastX = lastY = lastZ = 0;//重置全部數值
	window.addEventListener(‘devicemotion‘, function(){
		var acceleration =event.accelerationIncludingGravity;//將傳感值賦給acceleration 
		x = acceleration.x;
		y = acceleration.y;
		z = acceleration.z;
		if(Math.abs(x-lastX) > speed || Math.abs(y-lastY) > speed ) {
			// TODO:在此處能夠實現搖一搖之後所要進行的數據邏輯操作  
			 if(f==1){
				 donghua();
				 f=0;
			}
		}
		lastX = x;
		lastY = y;
		lastZ = z;
	}, false);
}

html5搖一搖代碼優化