问有没有办法在GPS给出的位置上获得更高的精度？

EN

func setCurrentLocation(location: CLLocation) {

    let encodedLocation = NSKeyedArchiver.archivedData(withRootObject: location)
    UserDefaults.standard.set(encodedLocation, forKey: UserDefaultKey.previousVisitedLocation)
}

func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {

    guard locations.count > 0 else {
        return
    }

    guard let location = locations.last else {
        return
    }

    guard location.horizontalAccuracy > 0 else {
        return
    }

    guard location.horizontalAccuracy < DISTANCE_LIMIT else { //DISTANCE_LIMIT is the value you have set for your distance filter
        return
    }

    let previousLocationEncoded = UserDefaults.standard.object(forKey: UserDefaultKey.previousVisitedLocation) as? Data

    if previousLocationEncoded == nil {

        setCurrentLocation(location: location)

        //do your tasks

    } else {

        let previousLocationDecoded = NSKeyedUnarchiver.unarchiveObject(with: previousLocationEncoded!) as! CLLocation

        let distanceBetweenVisits = previousLocationDecoded.distance(from: location)

        if distanceBetweenVisits > DISTANCE_LIMIT {

            let timeIntervalBetweenVisits = location.timestamp.timeIntervalSince(previousLocationDecoded.timestamp)

            guard timeIntervalBetweenVisits > 0 else {
                return
            }

            setCurrentLocation(location: location)

            //do your tasks
        }
    }
}