startDeviceMotionUpdates(handler:) Declarationfunc startDeviceMotionUpdates(handler: @escaping ([CMDeviceMotion]?, (any Error)?) -> Void) See AlsoCollecting device-motion datastartDeviceMotionUpdates()stopDeviceMotionUpdates()deviceMotionBatchdeviceMotionUpdates()CMBatchedSensorManager.DeviceMotionUpdatesisDeviceMotionActive