php工作笔记7-摇动手机，发出请求响应

1、调用

 

2、代码

function shakeMobile()
{
    var self = this;
    this.SHAKE_THRESHOLD =500;
    var _shakeCallback = null;

    this.Initialize = function (shakeEventCallback)
    {
        if (window.DeviceMotionEvent)
        {
            _shakeCallback = shakeEventCallback;
            window.addEventListener('devicemotion', deviceMotionHandler, false);
            return true;

        } else
        {
            return false;
        }
    };

    this.Unitialize = function ()
    {
        window.removeEventListener('devicemotion', deviceMotionHandler, false);
    };

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

    var deviceMotionHandler = function (eventData)
    {

        var acceleration = eventData.accelerationIncludingGravity;
        var curTime = new Date().getTime();
        if ((curTime - last_update) > 200)
        {
            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 > self.SHAKE_THRESHOLD)
            {
                if (_shakeCallback != null)
                {
                    _shakeCallback();
                }
            }
            last_x = x;
            last_y = y;
            last_z = z;


        }
    }
}