iPhone位置角度

Question

如何计算0到360度之间的iPhone位置角度。考虑将肖像设为0度？使用陀螺仪和加速度计感到很累，但无法获得角度。

Answer 1

如果motionManager.isDeviceMotionAvailable {

motionManager.startDeviceMotionUpdates(to: OperationQueue.main) { (motion, error) in

    let radians = atan2((motion?.gravity.x)!, (motion?.gravity.y)!) - .pi

    let degrees = radians * 180.0  / .pi

    print(-degrees)

}

}