Handling Significant Location Changes in SwiftUI for iPhone with Background Mode Enabled
I'm stuck on something that should probably be simple. I'm working on a SwiftUI application that requires tracking significant location changes while the app is running in the background. I've followed the documentation for enabling background location updates, but I keep encountering an issue where my CLLocationManager doesn't call the delegate method when significant location changes occur after the app goes into the background. I've set up my CLLocationManager in a separate class like this: ```swift import CoreLocation class LocationManager: NSObject, CLLocationManagerDelegate { private var locationManager: CLLocationManager? override init() { super.init() self.locationManager = CLLocationManager() self.locationManager?.delegate = self self.locationManager?.desiredAccuracy = kCLLocationAccuracyBest self.locationManager?.allowsBackgroundLocationUpdates = true self.locationManager?.requestAlwaysAuthorization() } func startTracking() { self.locationManager?.startMonitoringSignificantLocationChanges() } func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) { // Handle location update print("New location: \(locations.last!)") } } ``` In my `App` struct, I'm calling `startTracking()` when the app launches: ```swift import SwiftUI @main struct MyApp: App { @StateObject private var locationManager = LocationManager() var body: some Scene { WindowGroup { ContentView() .onAppear { locationManager.startTracking() } } } } ``` I've also added the necessary keys in my `Info.plist` for location usage: ```xml <key>NSLocationAlwaysAndWhenInUseUsageDescription</key> <string>Your message here.</string> <key>NSLocationWhenInUseUsageDescription</key> <string>Your message here.</string> <key>UIBackgroundModes</key> <array> <string>location</string> </array> ``` Despite all of this, when I run my app on an iPhone with iOS 16.1 and send it to the background, I don't receive any location updates. I've checked the app permissions, and they appear to be set correctly. Is there something I'm missing or a common pitfall in handling background location updates that I need to be aware of?