Some strange visual artifacts appeared in my app after updating Xcode to 16.0. The old version of the app was built with Xcode 15.x and working fine without any visual artifacts, but for the latest release I've used Xcode 16.0 and some strange visual artifacts appeared in LazyVStack on iOS 18.x. https://www.veed.io/view/828ed62c-a8ee-4102-846c-55b28a7f4b74?panel=share Anyone can help me with a fix or workaround ?

I try to convert view to vector graphic (PDF) using ImageRenderer. But output image has ALL coordinates rounded to integer values, which is not OK - some very small circles become elipses, squares are no longer squares, very detailed or small shapes are distorted by rounding coordinates. Is a some option to switch off rounding?

I’m looking for the easiest and most efficient way to convert a SwiftUI Image to Data so that I can store it in SwiftData. let image: Image let data: Data = GetImageData(image: image) How would I implement the GetImageData function above? I have found examples of how to do so with UIImage but not Image.

Is MultiPolygon overlay support going to be integrated with SwiftUI? I have made a post on here previously without a reply :( Any suggestions on how to display multi-polygons within MapKit for SwiftUI(https://developer.apple.com/documentation/mapkit/mappolygon)? At the moment it is not supported and only supported by MapKit for UIKit(https://developer.apple.com/documentation/mapkit/mkmultipolygon).

We have an iPad app and are using the new TabView and TabSection views in our sidebar. The TabSection is populated with data from a @FetchRequest that fetches data from CoreData. The data in CoreData is updated by a single worker that makes sure every value only exists once. This is done by using an OperationQueue with maxConcurrentOperationCount set to 1. This is crashing for our users, and we can't figure out why. We can't reproduce it, and it only seems to happen on iPadOS. We have the same code running on macOS and haven't received any reports. (We collect them all via 3rd party). The error is: NSInternalInconsistencyException Fatal: supplied item identifiers are not unique. Duplicate identifiers: {( ... )} Where ... is one to many comma separated strings. In our latest update we made sure the values are unique by passing them through a Set, unfortunately this is till crashing. Here's the fix we tried. var uniqueTags: [HashTag] { let set = Set(hashTags) let array = Array(set) return array.sorted { $0.name?.lowercased() ?? "" < $1.name?.lowercased() ?? "" } } We're out of ideas and have no idea what to do next.

Hi, Im developing a data centric App using SwiftData, I noticed that the device I use for testing doesn't sync its data with the simulator although both have same Apple Account ? What's Im missing here ? arched is my project settings. Kind Regards

I receive the following compiler error: Cannot infer key path from context; consider explicitly specifying a root type when I attempt an @Environment(\.foodRepository) lookup in a descendant View. Here's the setup in my App class: import SwiftUI import SwiftData @main struct BulkCutApp: App { private var foodRepository: FoodRepository = /* some code*/ var body: some Scene { WindowGroup { ContentView() .foodRepository(foodRepository) } } } extension View { func foodRepository(_ customValue: FoodRepository) -> some View { environment(\.foodRepository, customValue) } } extension EnvironmentValues { var foodRepository: FoodRepository { get { self[FoodRepositoryKey.self] } set { self[FoodRepositoryKey.self] = newValue } } } struct FoodRepositoryKey: EnvironmentKey { static var defaultValue: FoodRepository = FoodRepository(food:[]) } Nothing special in FoodRepository: @Observable class FoodRepository { var food: [Food] // more code }

I want to create master details relationship between patient and vitals signs so which of option codes below are better performance wise ? Option one is master - details done manually .. option 1 @Model class TestResult { @Attribute(.primaryKey) var id: UUID var patientID: UUID Option 2 @Model final class Vital { var patient: Patient?

Im building an recipe app for the social media of my mother. i already have the functionality for the users, when a user gets created an empty array gets initiated at the database named favoriteRecipes, which stores the id of his favorite recipes to show in a view. This is my AuthViewModel which is relevant for the user stuff: import Firebase import FirebaseAuth import FirebaseFirestore protocol AuthenticationFormProtocol { var formIsValid: Bool { get } } @MainActor class AuthViewModel : ObservableObject { @Published var userSession: FirebaseAuth.User? @Published var currentUser: User? @Published var currentUserId: String? init() { self.userSession = Auth.auth().currentUser Task { await fetchUser() } } func signIn(withEmail email: String, password: String) async throws { do { let result = try await Auth.auth().signIn(withEmail: email, password: password) self.userSession = result.user await fetchUser() // fetch user sonst profileview blank } catch { print("DEBUG: Failed to log in with error \(error.localizedDescription)") } } func createUser(withEmail email: String, password: String, fullName: String) async throws { do { let result = try await Auth.auth().createUser(withEmail: email, password: password) self.userSession = result.user let user = User(id: result.user.uid, fullName: fullName, email: email) let encodedUser = try Firestore.Encoder().encode(user) try await Firestore.firestore().collection("users").document(result.user.uid).setData(encodedUser) await fetchUser() } catch { print("Debug: Failed to create user with error \(error.localizedDescription)") } } func signOut() { do { try Auth.auth().signOut() // sign out user on backend self.userSession = nil // wipe out user session and take back to login screen self.currentUser = nil // wipe out current user data model } catch { print("DEBUG: Failed to sign out with error \(error.localizedDescription)") } } func deleteAcocount() { let user = Auth.auth().currentUser user?.delete { error in if let error = error { print("DEBUG: Error deleting user: \(error.localizedDescription)") } else { self.userSession = nil self.currentUser = nil } } } func fetchUser() async { guard let uid = Auth.auth().currentUser?.uid else { return } currentUserId = uid let userRef = Firestore.firestore().collection("users").document(uid) do { let snapshot = try await userRef.getDocument() if snapshot.exists { self.currentUser = try? snapshot.data(as: User.self) print("DEBUG: current user is \(String(describing: self.currentUser))") } else { // Benutzer existiert nicht mehr in Firebase, daher setzen wir die userSession auf nil self.userSession = nil self.currentUser = nil } } catch { print("DEBUG: Fehler beim Laden des Benutzers: \(error.localizedDescription)") } } } This is the code to fetch the favorite recipes, i use the id of the user to access the collection and get the favoriteRecipes out of the array: import SwiftUI @MainActor class FavoriteRecipeViewModel: ObservableObject { @Published var favoriteRecipes: [Recipe] = [] @EnvironmentObject var viewModel: AuthViewModel private var db = Firestore.firestore() init() { Task { await fetchFavoriteRecipes() } } func fetchFavoriteRecipes() async{ let userRef = db.collection("users").document(viewModel.userSession?.uid ?? "") do { let snapshot = try await userRef.collection("favoriteRecipes").getDocuments() let favoriteIDs = snapshot.documents.map { $0.documentID } let favoriteRecipes = try await fetchRecipes(recipeIDs: favoriteIDs) } catch { print("DEBUG: Failed to load favorite recipes for user: \(error.localizedDescription)") } } func fetchRecipes(recipeIDs: [String]) async throws -&gt; [Recipe] { var recipes: [Recipe] = [] for id in recipeIDs { let snapshot = try await db.collection("recipes").document(id).getDocument() if let recipe = try? snapshot.data(as: Recipe.self) { recipes.append(recipe) } } return recipes } } Now the Problem occurs at the build of the project, i get the error SwiftUICore/EnvironmentObject.swift:92: Fatal error: No ObservableObject of type AuthViewModel found. A View.environmentObject(_:) for AuthViewModel may be missing as an ancestor of this view. I already passed the ViewModel instances as EnvironmentObject in the App Struct. import SwiftUI import FirebaseCore class AppDelegate: NSObject, UIApplicationDelegate { func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -&gt; Bool { FirebaseApp.configure() return true } } @main struct NimetAndSonApp: App { @StateObject var viewModel = AuthViewModel() @StateObject var recipeViewModel = RecipeViewModel() @StateObject var favoriteRecipeViewModel = FavoriteRecipeViewModel() @UIApplicationDelegateAdaptor(AppDelegate.self) var delegate var body: some Scene { WindowGroup { ContentView() .environmentObject(viewModel) .environmentObject(recipeViewModel) .environmentObject(favoriteRecipeViewModel) } } }

I have an app that needs to store a SwiftUI Color within SwiftData and I was wondering if anyone had found a way to do so easily and accurately. I'd prefer not to have to store the Color components (e.g. RGB values) and would ideally like to have a single variable in the @Model that stores the Color. I had considered using an extension to the Color type to create a HEX encoded String of the Color and an initializer that creates a Color from the HEX encoded String. Unfortunately, doing so proved not to be accurate due data loss when converting component values to integers. When testing this in Photoshop, the original color #FBAA1D became #FFAB00. Is there a way to accurately store the Color in SwiftData, possibly using a binary conversion to Data or somehow storing the Color.Resolved, which itself does not appear to be compatible with SwiftData. Any thoughts on how to best store the Color accurately within SwiftData would be greatly appreciated.

need to use CocoaPods, Ruby, and Xcode to set up a development environment. trying to install CocoaPods and running into compatibility issues with Ruby versions (>= 2.7.0) and can't use rbenv.

I am trying to work on a new app but everytime I try to run it and test it I get this error error reading dependency file '/Users/jacobwright/Library/Developer/Xcode/DerivedData/LevelingUp:_Life-baixnmqgtntqiacdkadvwrgeanox/Build/Intermediates.noindex/LevelingUp: Life.build/Debug-iphonesimulator/LevelingUp: Life iOS.build/Objects-normal/arm64/LevelingUp: Life iOS-master-emit-module.d': unexpected character in prerequisites and I do not know what to do. I even tryed makeing a new project and running it with out doing anything and I get the same thing I have tried Deleting Xcode and Reinstalling, and updating my computer and Xcode. I am not sure what else to try and I was wondering if anyone else is getting this and how do i fix it?

I have a view, and in this view I bind Axis class values — lowerBound which is a regular property and at – computed one which comes from protocol HasPositionProtocol associated with Axis. struct AxisPropertiesView<Axis>: View where Axis: StyledAxisProtocol, Axis: HasPositionProtocol, Axis: Observable { @Bindable var axis: Axis var body: some View { HStack { TextField("", text: $axis.shortName) .frame(width: 40) TextField("", value: $axis.lowerBound, format: .number) .frame(width: 45) //Problem is here: Slider(value: $axis.at, in: axis.bounds) ... Unfortunately I got en error Failed to produce diagnostic for expression; ... for whole View. But if I remove Slider from View, error disappeared. What could cause this strange behaviour? Value of .at comes from: public extension HasPositionProtocol { ///Absolut position on Axis var at: Double { get { switch position { case .max: return bounds.upperBound case .min: return bounds.lowerBound case .number(let number): return number } } set { switch newValue { case bounds.lowerBound: position = .min case bounds.upperBound: position = .max default: position = .number(newValue) } } } }

I'm using SwiftData to store data in my app and I recently had to store both image data and colors. I have therefore added two variables to my model, one of type Data? and the other of type Color.Resolved? If both are set to nil then I can call context.save() without any error but when providing a value of type Color.Resolved, the following error message occurs: Thread 1: Fatal error: Composite Coder only supports Keyed Container. Any guidance on how to solve this and what needs to be done to store image data and colors with SwiftData?

Is it possible to let the user select points of interest on the Map, such as restaurants, grocery stores, gas stations etc. I want the user to be able to select these points of interest that are already on the map, not those that I add to the map. Is this possible with the SwiftUI version of the MapKit Map?

I don't believe it's possible today to access the icon and tint color of a MapFeature although this would be incredibly helpful in the app that I'm building presently as I'm storing places in SwiftData and would like to use the same icon and tint color when listing places in the app. It would be awesome if this were possible in the next version of iOS, iPadOS visionOS etc., if not presently possible.

Hi, The dataModule in code below is a swiftData object being passed to the view and its property as key path but when trying to modify it I'm getting the error ."Cannot assign through subscript: 'self' is immutable" how to solve this issue ? Kind Regards struct ListSel<T: PersistentModel>: View { @Bindable var dataModule: T @Binding var txtValue: String var keyPath: WritableKeyPath<T, String> var turncate: CGFloat? = 94.0 var image = "" var body: some View { HStack { Text(txtValue) .foregroundColor(sysSecondary) .font(.subheadline) .onChange(of: txtValue) { value in dataModule[keyPath: keyPath] = value } Image(systemName: image) .foregroundColor(sysSecondary) .font(.subheadline) .imageScale(.small) .symbolRenderingMode(.hierarchical) .scaleEffect(0.8) } .frame(width: turncate, height: 20, alignment: .leading) .truncationMode(.tail) } }

Is there really no way to hide a TabItem using the built-in TabView? I have 6 pages, but the 6th one I want hidden from the bottom tab bar, because I have a button that programmatically navigates to it on the navigation bar. I did not want to have to code a custom tab bar due to losing some useful features like pop to root in Navigation Stack.

In my visionOS app, I have an initial WindowGroup (no parameters), which opens correctly on application launch. I have multiple other WindowGroup(for:) closures in the app, too. If I open one of the other WindowGroup(for:) windows, then close the initial window, I can't get the initial window back. If I close the second window, then tap on app icon, the second window reappears, but the initial window isn't shown. The only way to get the initial window back, once it's closed, is to force-quit the app and restart. A one-file reproducible example is below. In this example, the "button tapped" window is the second window. What do I need to do to get the initial window back? Note this problem is in a visionOS app. But I've been able to reproduce even if I remove the RealityKitContent package from the target. If I close, say, Safari's only window, then Safari exits, and shows me its window when I relaunch. The behavior I'd like to see is that when I "click" the app icon, the app presents its main window again. I have also tried giving the WindowGroup an id. That does allow me to openWindow from another window (could use a toolbar item for that), but it doesn't get the main window to appear on launch, and I end up with multiple copies of the Main window. import SwiftUI @main struct Limbo_MREApp: App { var body: some Scene { // I've also tried this form, same result // WindowGroup(id: "main") { WindowGroup { ContentView() } WindowGroup(for: String.self) { $string in if let string { Text(string) .font(.extraLargeTitle2) } } } } struct ContentView: View { @Environment(\.openWindow) var openWindow var body: some View { VStack { Text("Hello, world!") Button("Tap Me", systemImage: "doc.on.doc") { openWindow(value: "button tapped") } } } }

I want to share UserDefaults between main App and macOS Widget, in iOS I can do it using AppGroups, but how to do it between macOS Widget and main App, because macOS widget's AppGroup require to use "Team Identifier" as prefix and main App's AppGroup require prefix to be "group" so how can I share UserDefaults between the two?