I'm currently syncing core data with the CloudKit private and public databases, as you can see in the code below, I'm saving the private database in the default configuration in Core Data and the public in a configuration called Public everything works fine when NSPersistentCloudKitContainer syncs, what I'm having an issue with is trying to save to the public data store PublicStore, for instance when I try to save with func createIconImage(imageName: String) it saves the image to the "default" store, not the PublicStore(Public configuration). What could I do to make the createIconImage() function save to the PublicStore sqlite database? class CoreDataManager: ObservableObject{ static let instance = CoreDataManager() private let queue = DispatchQueue(label: "CoreDataManagerQueue") @AppStorage(UserDefaults.Keys.iCloudSyncKey) private var iCloudSync = false lazy var context: NSManagedObjectContext = { return container.viewContext }() lazy var container: NSPersistentContainer = { return setupContainer() }() init(inMemory: Bool = false){ if inMemory { container.persistentStoreDescriptions.first!.url = URL(fileURLWithPath: "/dev/null") } } func updateCloudKitContainer() { queue.sync { container = setupContainer() } } private func getDocumentsDirectory() -> URL { return FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0] } private func getStoreURL(for storeName: String) -> URL { return getDocumentsDirectory().appendingPathComponent("\(storeName).sqlite") } func setupContainer()->NSPersistentContainer{ let container = NSPersistentCloudKitContainer(name: "CoreDataContainer") let cloudKitContainerIdentifier = "iCloud.com.example.MyAppName" guard let description = container.persistentStoreDescriptions.first else{ fatalError("###\(#function): Failed to retrieve a persistent store description.") } description.setOption(true as NSNumber, forKey: NSPersistentHistoryTrackingKey) description.setOption(true as NSNumber, forKey: NSPersistentStoreRemoteChangeNotificationPostOptionKey) if iCloudSync{ if description.cloudKitContainerOptions == nil { let options = NSPersistentCloudKitContainerOptions(containerIdentifier: cloudKitContainerIdentifier) description.cloudKitContainerOptions = options } }else{ print("Turning iCloud Sync OFF... ") description.cloudKitContainerOptions = nil } // Setup public database let publicDescription = NSPersistentStoreDescription(url: getStoreURL(for: "PublicStore")) publicDescription.configuration = "Public" // this is the configuration name if publicDescription.cloudKitContainerOptions == nil { let publicOptions = NSPersistentCloudKitContainerOptions(containerIdentifier: cloudKitContainerIdentifier) publicOptions.databaseScope = .public publicDescription.cloudKitContainerOptions = publicOptions } container.persistentStoreDescriptions.append(publicDescription) container.loadPersistentStores { (description, error) in if let error = error{ print("Error loading Core Data. \(error)") } } container.viewContext.automaticallyMergesChangesFromParent = true container.viewContext.mergePolicy = NSMergeByPropertyObjectTrumpMergePolicy return container } func save(){ do{ try context.save() //print("Saved successfully!") }catch let error{ print("Error saving Core Data. \(error.localizedDescription)") } } } class PublicViewModel: ObservableObject { let manager: CoreDataManager @Published var publicIcons: [PublicServiceIconImage] = [] init(coreDataManager: CoreDataManager = .instance) { self.manager = coreDataManager } func createIconImage(imageName: String) { let newImage = PublicServiceIconImage(context: manager.context) newImage.imageName = imageName newImage.id = UUID() save() } func save() { self.manager.save() } }

I'm currently syncing Core Data with the CloudKit public database using NSPersistentCloudKitContainer. The app starts with an empty Core Data store locally and at the app launch it downloads the data from CloudKit public database to the Core Data store, but this can only be accomplished if the user is logged in, if the user is not logged, no data gets downloaded and I get the error below. Can the NSPersistentCloudKitContainer mirror the data from the CloudKit public database to the local Core Data even if the user is not logged in? Can someone please confirm this is possible? The reason for my question is because I was under the impression that the users didn't need to be logged to read data from the public database in CloudKit but I'm not sure this applies to NSPersistentCloudKitContainer when mirroring data. I know I can fetch data directly with CloudKit APIs without the user beign logged but I need to understand if NSPersistentCloudKitContainer should in theory work without the user being logged. I hope someone from Apple sees this question since I have spent too much time researching without any luck. Error Error fetching user record ID: <CKError 0x600000cb1b00: "Not Authenticated" (9); "No iCloud account is configured"> CoreData: error: CoreData+CloudKit: -[NSCloudKitMirroringDelegate _performSetupRequest:]_block_invoke(1192): <NSCloudKitMirroringDelegate: 0x600003b00460>: Failed to set up CloudKit integration for store: <NSSQLCore: 0x10700f0d0> (URL: file:///Users/UserName/...

Can someone please give me an overview of how sync works between Core Data and the public CloudKit database when using the NSPersistentCloudKitContainer and please point out my misunderstandings based on what I describe below? In the following code, I'm successfully connecting to the public database in CloudKit using the NSPersistentCloudKitContainer. Below is how I have Core Data and CloudKit set up for your reference. In CloudKit I have a set of PublicIconImage that I created manually via the CloudKit Console. I intend to be able to download all images from the public database at the app launch to the local device and manage them via Core Data to minimize server requests, which works but only if the user is logged in. This is the behavior I see: When the app launches, all the CloudKit images get mirrored to Core Data and displayed on the screen but only if the user is logged in with the Apple ID, otherwise nothing gets mirrored. What I was expecting: I was under the impression that when connecting to the public database in CloudKit you didn't need to be logged in to read data. Now, if the user is logged in on the first launch, all data is successfully mirrored to Core Data, but then if the user logs off, all data previously mirrored gets removed from Core Data, and I was under the impression that since Core Data had the data already locally, it would keep the data already downloaded regardless if it can connect to CloudKit or not. What am I doing wrong? Core Data Model: Entity: PublicIconImage Attributes: id (UUID), imageName (String), image (Binary Data). CloudKit Schema in Public Database: Record: CD_PublicIconImage Fields: CD_id (String), CD_imageName (String), CD_image (Bytes). Core Data Manager class CoreDataManager: ObservableObject{ // Singleton static let instance = CoreDataManager() private let queue = DispatchQueue(label: "CoreDataManagerQueue") private var iCloudSync = true lazy var context: NSManagedObjectContext = { return container.viewContext }() lazy var container: NSPersistentContainer = { return setupContainer() }() func updateCloudKitContainer() { queue.sync { container = setupContainer() } } func setupContainer()->NSPersistentContainer{ let container = NSPersistentCloudKitContainer(name: "CoreDataContainer") guard let description = container.persistentStoreDescriptions.first else{ fatalError("###\(#function): Failed to retrieve a persistent store description.") } description.setOption(true as NSNumber, forKey: NSPersistentHistoryTrackingKey) let cloudKitContainerIdentifier = "iCloud.com.example.PublicDatabaseTest" let options = NSPersistentCloudKitContainerOptions(containerIdentifier: cloudKitContainerIdentifier) description.cloudKitContainerOptions = options description.cloudKitContainerOptions?.databaseScope = .public // Specify Public Database container.loadPersistentStores { (description, error) in if let error = error{ print("Error loading Core Data. \(error)") } } container.viewContext.automaticallyMergesChangesFromParent = true container.viewContext.mergePolicy = NSMergeByPropertyObjectTrumpMergePolicy return container } func save(){ do{ try context.save() }catch let error{ print("Error saving Core Data. \(error.localizedDescription)") } } } View Model Class class PublicIconImageViewModel: ObservableObject { let manager: CoreDataManager @Published var publicIcons: [PublicIconImage] = [] init(coreDataManager: CoreDataManager = .instance) { self.manager = coreDataManager loadPublicIcons() } func loadPublicIcons() { let request = NSFetchRequest<PublicIconImage>(entityName: "PublicIconImage") let sort = NSSortDescriptor(keyPath: \PublicIconImage.imageName, ascending: true) request.sortDescriptors = [sort] do { publicIcons = try manager.context.fetch(request) } catch let error { print("Error fetching PublicIconImages. \(error.localizedDescription)") } } } SwiftUI View struct ContentView: View { @EnvironmentObject private var publicIconViewModel: PublicIconImageViewModel var body: some View { VStack { List { ForEach(publicIconViewModel.publicIcons) { icon in HStack{ Text(icon.imageName ?? "unknown name") Spacer() if let iconImageData = icon.image, let uiImage = UIImage(data: iconImageData) { Image(uiImage: uiImage) .resizable() .aspectRatio(contentMode: .fit) .frame(width: 35, height: 35) } } } } .onAppear { // give some time to get the images downlaoded DispatchQueue.main.asyncAfter(deadline: .now() + 5){ publicIconViewModel.loadPublicIcons() } } } .padding() } }

I currently have a production app that uses CloudKit I always struggle with testing the data within the development container and I was wondering if someone could share their current workflow. What is your current workflow when testing apps that use CloudKit, do you use your regular Apple User account for testing, or you use separate account? My concern is because I use my production app on a daily basis using my regular Apple user account, so I would like to keep the production iCloud data intact. In other words, I have my app on my phone with real data and now I need to test the app because there are some CloudKit syncing issues so I have the following questions. Can I connect my phone with production data to Xcode and use my regular Apple account for testing purposes? Will I be able to see the testing data in the CloudKit console? Will the production data merge with the testing data? I actually created a second Apple account thinking that I could use it for testing but logging off and logging back on to iCloud in your iPhone it's a pain, is this really what needs to be done? Any ideas would be greatly appreciated. Thanks

Is there a way to remove or resize the image from the tag in the Picker view? Picker("", selection: $selectedCategory) { ForEach(categorySM.categories, id: \.self) { category in HStack { if let inputImage = UIImage(data: category.image ?? Data()) { Image(uiImage: inputImage) .resizable() .scaledToFit() } Text(category.name ?? "") } .tag(category as CategoryItem?) } } .font(.callout) .pickerStyle(.menu) As you can see in images 1 and 2 below, the image in the tag from the Beverages category is huge and covers almost the entire screen, it also covers the category name (Beverages). Is there a way to remove or resize the image when displaying it on the tag? Basically to make it look like image #3. Image Link: https://i.stack.imgur.com/4XpjI.jpg

I have a Core Data container with two entities, a Category and an Item. The Item can have one Category assigned and the Category can be assigned to many Items. What I need to do is group the items by category in a list in SwiftUI. The code below doesn't group all items by category, it only shows one item by category. How can I group all items that have the same category assigned under the same category group? Core Data Entities Category Attributes name Relationship items (Type: To Many) Item Attributes name Relationship category (Type: To One) Swiftui struct ItemsView: View { let selectedList:List @EnvironmentObject private var itemSM: ItemServiceModel var body: some View { List { ForEach(itemSM.items) { item in Section(header: Text(item.category?.name ?? "")) { ForEach(itemSM.items.filter { $0.category == item.category }) { filteredItem in Text("\(filteredItem.name ?? "")") } } } } .onAppear{ itemSM.loadItems(forList: selectedList) } } } Service Item Service Model class ItemServiceModel: ObservableObject{ let manager: CoreDataManager @Published var items: [Item] = [] func loadItems(forList list: List){ let request = NSFetchRequest<Item>(entityName: "Item") let sort = NSSortDescriptor(keyPath: \Item.name, ascending: true) request.sortDescriptors = [sort] let filter = NSPredicate(format: "list == %@", list) request.predicate = filter do{ items = try manager.context.fetch(request) }catch let error{ print("Error fetching items. \(error.localizedDescription)") } } } This is what I see, as you can see, only one Fruits & Vegetables section should exist.

Hi, I'm trying to understand how TestFlight works since a major update of my app is coming soon. I currently have an app in the app store with a few thousand users, the current app was written in UIKit and I'm now rewriting it in SwiftUI and making major updates such as, moving from Realm to Core Data and allowing iCloudSync etc. I don't have users emails, only from the people who have contacted me with questions so, I was wondering if I could somehow invite users to test the new version without having their emails. Can someone please describe the typical process when using TestFlight? Would the following process be considered a good practice? Add a message in the existing app to invite users by asking for their email so they can join TestFlight at a later date. Release a new Beta version in TestFlight. Invite the users who subscribed via the old app. Release to production after users test it. Thanks

I need some help understanding how the public database works in CloudKit. First of all, let me say that I know how to connect and use the private database. In this question I'm not looking for an answer on how to connect to the database at self, only the concept. Here is my confusion. I have a set of images that all users in my app will be using, right now what I'm doing is adding the images directly to the app (an Image Set in Xcode) and then I am pulling them to Core Data and then syncing them to CloudKit. As you can see all images are technically stored in every device using my app and in Core Data/CloudKit, not very efficient. What I would like is to have the images stored in a single place where all uses can pull the images from, in this case CloudKit. I know I can have them somewhere in a private server, but I feel like I would be adding more complexity to my app, so I think using CloudKit is a better option for me. Here is my question. How do I get the images to CloudKit, do I upload them directly to CloudKit and then read from all devices or do I need to first add them to a device and upload to CloudKit from there? Thanks!

Can someone please help me understand PassthroughSubject and CurrentValueSubject? What I understand so far is that they are subjects where subscribers can listen to changes made to these subjects, but I'm really straggling to understand the following. I'm I correct by saying that PassthroughSubject or CurrentValueSubject could replace delegation and asynchronous function calls? Is it possible to delare a subject in Class A and subscribe to listen to those subject changes in Class B and in some other classes or are listeners meant to only be used direclty in SwiftUI structs? Thanks

In the following code, I'm saving and syncing objects in Core Data and CloudKit, everything is working fine, once the user creates some objects, the data starts syncing as soon as the user turns the Toggle switch On in the SettingsView. The issue I'm having is that the data continue syncing even after the switch is turned Off until I kill and relaunch the app. After relaunching the app, the data stops syncing. Any idea what could I do to make sure that the data stops syncing as soon as the toggle switch is turned off? Again, everything would work fine if the user would kill and relaunch the app right after turning it off, the data stops syncing. I thought that by calling carViewModel.updateCloudKitContainer() right after turning it off would do the trick since I'm disabling the CloudKit container by making it nil, description.cloudKitContainerOptions = nil but obviously is not enough. Core Data Manager class CoreDataManager{ // Singleton static let instance = CoreDataManager() @AppStorage(UserDefaults.Keys.iCloudSyncKey) private var iCloudSync = false static var preview: CoreDataManager = { // Create preview objects do { try viewContext.save() } catch { } return result }() lazy var context: NSManagedObjectContext = { return container.viewContext }() lazy var container: NSPersistentContainer = { return setupContainer() }() init(inMemory: Bool = false){ /// for preview purposes only, remove if no previews are needed. if inMemory { container.persistentStoreDescriptions.first!.url = URL(fileURLWithPath: "/dev/null") } } func setupContainer()->NSPersistentContainer{ print("Assgning persistent container... ") let container = NSPersistentCloudKitContainer(name: "CoreDataContainer") guard let description = container.persistentStoreDescriptions.first else{ fatalError("###\(#function): Failed to retrieve a persistent store description.") } description.setOption(true as NSNumber, forKey: NSPersistentHistoryTrackingKey) description.setOption(true as NSNumber, forKey: NSPersistentStoreRemoteChangeNotificationPostOptionKey) if iCloudSync{ let cloudKitContainerIdentifier = "iCloud.com.sitename.myApp" let options = NSPersistentCloudKitContainerOptions(containerIdentifier: cloudKitContainerIdentifier) description.cloudKitContainerOptions = options }else{ description.cloudKitContainerOptions = nil // turn cloud sync off } container.loadPersistentStores { (description, error) in if let error = error{ print("Error loading Core Data. \(error)") } } container.viewContext.automaticallyMergesChangesFromParent = true container.viewContext.mergePolicy = NSMergeByPropertyObjectTrumpMergePolicy return container } func save(){ do{ try context.save() }catch let error{ print("Error saving Core Data. \(error.localizedDescription)") } } } View Model class CarViewModel: ObservableObject{ let manager: CoreDataManager @Published var cars: [Car] = [] init(coreDataManager: CoreDataManager = .instance){ self.manager = coreDataManager loadCars() } func updateCloudKitContainer(){ manager.container = manager.setupContainer() } func addCar(model:String, make:String?){ // create car save() loadCars() } func deleteCar(car: Car){ // delete car save() loadCars() } func loadCars(){ let request = NSFetchRequest<Car>(entityName: "Car") let sort = NSSortDescriptor(keyPath: \Car.model, ascending: true) request.sortDescriptors = [sort] do{ cars = try manager.context.fetch(request) }catch let error{ print("Error fetching businesses. \(error.localizedDescription)") } } func save(){ self.manager.save() } } Settings View to Turn ClouldKit ON and OFF struct SettingsView: View { @ObservedObject var carViewModel:CarViewModel @AppStorage(UserDefaults.Keys.iCloudSyncKey) private var iCloudSync = false var body: some View { VStack{ Toggle(isOn: $iCloudSync){// turns On and Off sync HStack{ Image(systemName: iCloudSync ? "arrow.counterclockwise.icloud" : "lock.icloud") .foregroundColor(Color.fsRed) Text(" iCloud Sync") } } .tint(Color.fsRed) .onChange(of: iCloudSync){ isSwitchOn in if isSwitchOn{ iCloudSync = true carViewModel.updateCloudKitContainer() }else{ iCloudSync = false // turn Off iCloud Sync carViewModel.updateCloudKitContainer() } } } } } Display Cars View struct CarsView: View { @ObservedObject var carViewModel:CarViewModel // Capture NOTIFICATION var didRemoteChange = NotificationCenter.default.publisher(for: .NSPersistentStoreRemoteChange).receive(on: RunLoop.main) var body: some View { NavigationView{ VStack{ List { ForEach(carViewModel.cars) { car in HStack{ VStack(alignment:.leading){ Text(car.model ?? "") .font(.title2) Text(car.make ?? "") .font(.callout) } } .swipeActions { Button( role: .destructive){ deleteCar = car showDeleteActionSheet = true }label:{ Label("Delete", systemImage: "trash.fill") } } } } .navigationBarTitle("Cars") .onAppear{ carViewModel.loadCars() } // reload cars on NOTIFICATION .onReceive(self.didRemoteChange){ _ in carViewModel.loadCars() } } } } }

Can someone please shed some light? I have an app that uses Core Data and CloudKit, up until the last version, I was able to sync data between devices but now after I added two new Entities for some reason it stopped syncing between devices. Here is how I did the change: Created a new Core Data container. Added the new Entities and their Attributes Tested the new Entities locally to be able to send the new schema to CloudKit. Went to CloudKit and made sure that the new Entities and Attributes were reflected on the Developent database. Deploy Schema Cahnges. Went to the Production database to make sure the new schema was deployed; and it was, both databases look the same. Testing: Tested in the simulator and with a real device and everything syncs, even the new Entities. If I download the app from the App Store on two different devices they do NOT sync. Based on the procedure I'm describing above, is there any important step I may have missed when doing the migration? I'm not sure if this is related to the syncing issue but after testing a few times, I no longer can turn the iCloud on, I get the following message when I try to turn iCloud Sync On. CoreData: error: CoreData+CloudKit: -[NSCloudKitMirroringDelegate resetAfterError:andKeepContainer:]: <NSCloudKitMirroringDelegate: 0x282c488c0> - resetting internal state after error: Error Domain=NSCocoaErrorDomain Code=134410 "CloudKit setup failed because there is another instance of this persistent store actively syncing with CloudKit in this process." UserInfo={NSURL=file:///var/mobile/Containers/Data/Application/73F19BC7-4538-4098-85C7-484B36192CF3/Library/Application%20Support/CoreDataContainer.sqlite, NSLocalizedFailureReason=CloudKit setup failed because there is another instance of this persistent store actively syncing with CloudKit in this process., NSUnderlyingException=Illegal attempt to register a second handler for activity identifier com.apple.coredata.cloudkit.activity.setup.8D4C04F6-8040-445A-9447-E5646484521} Any idea of what could be wrong and preventing the devices from syncing? Any idea or suggestion is welcome. Thanks

I have the following UIKit animation inside a UIViewRepresentable which works fine, it animates a view in a throwing effect like animation from point A to point B. What I would like to be able to do is, set the start and the end position in ContentView when assigning the animation to a view. Here is the code... Static Position Animation import SwiftUI struct ContentView: View { @State private var isAnimating = false var body: some View { HStack{ Image(systemName: "circle.fill") .font(.system(size: 65)) .foregroundColor(.blue) .throwAnimation(isAnimating: $isAnimating) .onTapGesture { isAnimating.toggle() } } } } struct ThrowAnimationWrapper<Content: View>: UIViewRepresentable{ @ViewBuilder let content: () -> Content @Binding var isAnimating: Bool func makeUIView(context: Context) -> UIView { UIHostingController(rootView: content()).view } func updateUIView(_ uiView: UIView, context: Context) { if isAnimating{ UIView.animateKeyframes(withDuration: 1.5, delay: 0.0, options: [.calculationModeCubic], animations: { UIView.addKeyframe(withRelativeStartTime: 0, relativeDuration: 0.2, animations: { uiView.center = CGPoint(x: 250, y: 300) // how can I make this dynamic }) UIView.addKeyframe(withRelativeStartTime: 0.0, relativeDuration: 0.9, animations: { uiView.center = CGPoint(x: 100 + 75, y: 100 - 50 ) uiView.transform = CGAffineTransform(scaleX: 0.75, y: 0.75) }) UIView.addKeyframe(withRelativeStartTime: 0.1, relativeDuration: 0.7, animations: { uiView.center = CGPoint(x: 100, y: 100)// how can I make this dynamic uiView.transform = CGAffineTransform(scaleX: 0.2, y: 0.2) }) }, completion: { _ in uiView.transform = CGAffineTransform(scaleX: 1.0, y: 1.0) }) } } } extension View { func throwAnimation( isAnimating: Binding<Bool>) -> some View { modifier(ThrowAnimationViewModifier(isAnimating: isAnimating)) } } struct ThrowAnimationViewModifier: ViewModifier { @Binding var isAnimating: Bool func body(content: Content) -> some View { ThrowAnimationWrapper(content: { content }, isAnimating: $isAnimating) } } How I would like to be able to call it from ContentView @State private var isAnimating = false var body: some View { HStack{ Image(systemName: "circle.fill") .font(.system(size: 65)) .foregroundColor(.blue) .throwAnimation(isAnimating: $isAnimating, startPos:CGPoint(x: 250, y: 300), endPos:CGPoint(x: 100, y: 100)) .onTapGesture { isAnimating.toggle() } } } } How can I modify this code in a way that I can enter the start and end position when assigning to a view? Thanks!

Hi, a Service class where I process all Core Data transactions for a single entity/Object and I often find my self needing to access information from other classes and I was wondering if there was an issue by calling these classes in non-UI related classes. In the following code I'm calling the dogs array from the DogService class inside the DogHouseService class, and I was wondering if this could be an issue. Are there any possible issue by calling @Published properties from an ObservableObject class inside other classes? ObservableObject class class DogService: ObservableObject{ let manager: CoreDataManager @Published var dogs: [Dog] = [] init(coreDataManager: CoreDataManager = .instance){ self.manager = coreDataManager loadDogs() } //Adds, Deletes, Updates, etc. func loadDogs(){ let request = NSFetchRequest<Dog>(entityName: "Dog") do{ dogs = try manager.context.fetch(request) }catch let error{ print("Error fetching dogs. \(error.localizedDescription)") } } func save(){ self.manager.save() } } Other Class class DogHouseService{ let dogService = DogService() for dog in dogService.dogs{ // do something } }

Hi, I would like to have a better understanding of Dependency Injection, in general, to start using it. Based on the three examples below, can someone please point out what would be the pros and the cons of using one over the other? 1 - What problem could Example 1 cause if I don't do unitest? This is my current method. 2- What method of Dependency Injection is best to adopt, Example 2 ro Example 3? 3- I noticed that Example 2 enforces to provided the dependency object at instantiation time whereas Example 3 does not. Couldn't Example 3 create confusion for the programmer since if you don't provide the dependency object, the code will still compile without any warning if you call a function that relies on a method inside the injected object? Example 1: Without Dependency Injection class Stereo{ func volume(){ print("Adjusting volume...") } } class Car{ var stereo = Stereo() func adjustVolume(){ stereo.volume() } } let car = Car() car.adjustVolume() Example 2: With Dependency Injection class Stereo{ func volume(){ print("Adjusting volume...") } } class Car{ var stereo: Stereo init(stereo: Stereo){ self.stereo = stereo } func adjustVolume(){ stereo.volume() } } let car = Car(stereo: Stereo()) car.adjustVolume() Example 3: With Optional Dependency Injection class Stereo{ func volume(){ print("Adjusting volume...") } } class Car{ var stereo: Stereo? func adjustVolume(){ stereo?.volume() } // this method can be called without injecting Stereo func someOtherFunction(){ print("Calling some other function...") } } let car = Car() car.stereo = Stereo() car.adjustVolume() Thanks

In the following code, I have a LocationManager class which provides the city name of the current location via the @Published property wrapper lastSearchedCity. Then I have a SearchManagerViewModel class that should be in charge of presenting the city name on SwiftUI views based on some conditions (not currently shown in the code below) via the @Published property wrapper cityName. It properly shows the city name when I call the searchAndSetCity() method from ContentView.swift inside an onAppear modifier. My issue is that if the user turned Location Services off and turns it back On while he/she is in the ContentView.swift the Text view doesn't update, which is understandable since the searchAndSetCity() method would need to be called again. How can I call the searchAndSetCity() method located inside the SearchManagerViewModel class every time the locationManagerDidChangeAuthorization(_ manager: CLLocationManager) method is called? I believed this method is called every time the authorization status changes. LocationManager Class final class LocationManager: NSObject, ObservableObject, CLLocationManagerDelegate { private let locationManager = CLLocationManager() @Published var lastSearchedCity = "" var hasFoundOnePlacemark:Bool = false func checkIfLocationServicesIsEnabled(){ DispatchQueue.global().async { if CLLocationManager.locationServicesEnabled(){ self.locationManager.delegate = self self.locationManager.desiredAccuracy = kCLLocationAccuracyBest/// kCLLocationAccuracyBest is the default self.checkLocationAuthorization() }else{ // show message: Services desabled! } } } private func checkLocationAuthorization(){ switch locationManager.authorizationStatus{ case .notDetermined: locationManager.requestWhenInUseAuthorization() case .restricted: // show message case .denied: // show message case .authorizedWhenInUse, .authorizedAlways: /// app is authorized locationManager.startUpdatingLocation() default: break } } func locationManagerDidChangeAuthorization(_ manager: CLLocationManager) { checkLocationAuthorization() } func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) { hasFoundOnePlacemark = false CLGeocoder().reverseGeocodeLocation(manager.location!, completionHandler: {(placemarks, error)-> Void in if error != nil { self.locationManager.stopUpdatingLocation() // show error message } if placemarks!.count > 0 { if !self.hasFoundOnePlacemark{ self.hasFoundOnePlacemark = true let placemark = placemarks![0] self.lastSearchedCity = placemark.locality ?? "" } self.locationManager.stopUpdatingLocation() }else{ // no places found } }) } } SearchManagerViewModel Class class SearchManagerViewModel: ObservableObject{ @Published var cityName = "" // use this directly in SwifUI views @ObservedObject private var locationManager = LocationManager() // Call this directly fron onAppear in SwiftUI views // This method is more complex than what is shown here. It handles other things like HTTP requests etc. func searchAndSetCity(){ locationManager.checkIfLocationServicesIsEnabled() self.cityName = locationManager.lastSearchedCity } } ContentView.swift struct ContentView: View { @StateObject private var searchManager = SearchManagerViewModel() var body: some View { VStack { Text(searchManager.cityName) .font(.callout) } .onAppear{ searchManager.searchAndSetCity() } } }