如何使用CoreMotion框架确定设备位置？

Question

例如：app运行并且我们初始化起始坐标（x=0, y=0, z=0）并且坐标系在启动时等于设备坐标系，然后它必须是固定的，即不连接到设备。我希望在x, y, z事件被解雇的每个时刻确定MotionManager：

motionManager.startDeviceMotionUpdates(to: OperationQueue.current!) { data, error in
    x = ...
    y = ...
    z = ...
}

但我不知道该怎么做。

提前致谢！

Answer 1

使用它像：

motionManger.startDeviceMotionUpdates(to: OperationQueue.current!) { (deviceMotion, deviceMotionError) in
            self.handleDeviceMotionUpdates(deviceMotion!)
}

func handleDeviceMotionUpdates(_ deviceMotion: CMDeviceMotion){

   let acceleration = deviceMotion.gravity
   print("Acceleration X>\(acceleration.x) Y>\(acceleration.y) Z>\(acceleration.z)\n")

   let userAcceleration = deviceMotion.userAcceleration
   print("User Acceleration X>\(userAcceleration.x) Y>\(userAcceleration.y) Z>\(userAcceleration.z)\n")
}