https://stackoverflow.com/questions/46661363/driving-activity-confidence-is-low-all-time-in-ios-11 I want to keep high confidence long time interval for deviceMotionUpdateInterval Makes high confidence?
https://stackoverflow.com/questions/46661363/driving-activity-confidence-is-low-all-time-in-ios-11 I want to keep high confidence long time interval for deviceMotionUpdateInterval Makes high confidence?