iOS Location updates stop after 15-30 minutes - swiftui

Question

I've built an app in SwiftUI, and have followed all the instructions I can to register the CLocationManager, and allow it to background. However, after some time in the background, my app stops producing location updates. When I view the file containing the coordinates, I have data for 15-30 minutes, then nothing. Snippets of the location manager init:
locationManager.desiredAccuracy = kCLLocationAccuracyBestForNavigation
locationManager.activityType = .fitness
locationManager.pausesLocationUpdatesAutomatically = false
locationManager.distanceFilter = 0;
locationManager.allowsBackgroundLocationUpdates = true
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let newLocation = locations.last!
session.addPointToCurrentSegment(newLocation)
coreDataHelper.add(toCoreData: newWayPoint)
}
My app has full permissions granted to access location "Always allow"

Answer 1

You aren't handling the location update anywhere when location manager does update. It should update in the background if “Location updates” is set in capabilities.
class Location: NSObject, ObservableObject, CLLocationManagerDelegate {
#Published var location: CLLocation = CLLocation(latitude: 0, longitude: 0)
private var manager: CLLocationManager = CLLocationManager()
func requestAuthorization() {
manager.allowsBackgroundLocationUpdates = true
/*
request authorization here
*/
}
func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
/*
handle authorization changes here
*/
}
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
// get the most recent location
guard let location = locations.last else { return }
self.location = location
}
func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {
if let error = error as? CLError, error.code == .denied {
manager.stopUpdatingLocation()
return
}
}
}

Answer 2

I wrote your own code, but it worked for me. The only different things I did were:
locationManager.activityType = .other
Use all methods of the delegate
In one of the methods of the delegate (didPause) try to start again, setting the manager again (locationManager.pausesLocationUpdatesAutomatically = false and locationManager.activityType = .other)
4)start the notification of awakening for the change of position, again in the didPause method.
I did not use the locationManager.desiredAccuracy = kCLLocationAccuracyBestForNavigation and locationManager.distanceFilter = 0
for point 4 I recommend this reading:
https://developer.apple.com/documentation/usernotifications/unlocationnotificationtrigger
I hope I was helpful