After two types of objects correctly inserted as nodes in an augmented reality setting, I replicated exactly the same procedure with a third kind of objects that unfortunately refuse to show up. I checked the flow and it is the same as the other objects as well the content of the LocationAnnotation, but there is surely something that escapes me. Could someone help with some ideas? This is the common code, apart of the class: func appendInAR(ghostElement: Ghost){ let ghostElementAnnotationLocation=GhostLocationAnnotationNode(ghost: ghostElement) ghostElementAnnotationLocation.scaleRelativeToDistance = true sceneLocationView.addLocationNodeWithConfirmedLocation(locationNode: ghostElementAnnotationLocation) shownGhostsAnnotations.append(ghostElementAnnotationLocation) }

Hi, I'm embedding the QLPreviewController in a UIViewControllerRepresentable. When I view .usdz models I don't see the AR/Object selector at the top, nor the sharing button. I have tried presenting modally with a .sheet modifier and had the same result. What do I need to do to get the controls? Thanks, code attached. Code Spiff

I am working on a widget that allows the user to specify a list of items. Each item is an AppEntity and has an id, a type and a name. In the DisplayRepresentation I have and icon / image for each type. So when I tap on the specified items option a list of user specified items comes up with the option to search, select, deselect items. This works nicely. I sort them suggested entities by type then name so the list is predictable. How would like to be able to have a group / type header for each type of item. However, I don't know how to do that with the AppEntities. Help would be appreciated. I noticed that HomeKit takes a different approach. They have a list of items at the bottom labeled "Choose Scene Or Accessory". You can move the items up / down in the list, you can delete, and add items. When you tap "Add an item" in the list it goes to a search screen where the items are grouped by the room and have the individual items beneath them. I don't like that you have to select one item at a time but I love having the headings for the rooms. The question here is how did they do that? Is there sample code somewhere that does something similar.

I am using a LayzVStack embedded into a ScrollView. The list items are fetched from a core data store by using a @FetchResult or I tested it also with the new @Query command coming with SwiftData. The list has one hundred items 1, 2, 3, ..., 100. The user scrolled the ScrollView so that items 50, 51, ... 60 are visible on screen. Now new data will be fetched from the server and updates the CoreData or SwiftData model. When I add new items to the end of the list (e.g 101, 102, 103, ...) then the ScrollView is keeping its position. Opposite to this when I add new items to the top (0, -1, -2, -3, ...) then the ScrollView scrolls down. Is there a way with the new SwiftData and SwiftUI ScrollView modifiers to update my list model without scrolling like with UIKit where you can query and set the scroll offset pixel wise?

In a previous post entitled “Save fails after Save As” I described a strange problem involving the Save and Save As operations in a macOS app I wrote: see https://developer.apple.com/forums/thread/779755. Since that posting (unanswered up to now) I tried various modifications of my app, in order better to understand the problem. Now, at the time of that posting I was using a version of the app that attempted — clumsily and incompletely — to circumvent the problem. Since then I decided to eliminate from my app this unsuccessful workaround. My app is called Goperfekt (it’s in the App Store) and is meant for macOS 11 to 15. I recently created a “bare bones” version of the app: this bare-bones version is called Goperf and contains the bare minimum necessary to save and open files of the exact same two file types as in Goperfekt, namely gop (an exported type that conforms to public.data), sgf (an imported type that conforms to public.text). Goperf and Goperfekt both use dataAfType:error: as their writing method. (Yes, Objective-C… but I’ve been working on that app on and off for nearly twenty years and when Swift came out my Obj-C project was already too advanced…) The problem is the following. In Goperfekt under macOS 15 the Save and Save As operations do not work as they should (see description below). In Goperfekt under macOS 12 and 11 the Save and Save As operations work perfectly, just as they should. (Unfortunately I do not have machines running macOS 14 or 13 at the moment.) Goperf, the bare-bones version, on the other hand, works perfectly in all three versions of macOS that I have (11, 12, 15). Here is a description of the problem with Goperfekt under macOS 15. The precise app behavior described below presupposes that the user has activated the option System Settings/Desktop & Dock/Windows/Ask to keep changes when closing documents. If you deactivate this option, the app misbehaves similarly, though somewhat differently. First three important facts (Goperfekt and Goperf in macOS 11, 12, 15): I can open an already existing gop file, modify the document, and save it in that gop file, or save it as another gop file, without any problem. I can also open an already existing sgf file, modify the document, and save it in that sgf file, or save it as another sgf file, without any problem. I can also save a new document as a gop file. BUT in Goperfekt in macOS 15 it is possible neither to save a new document as an sgf file, nor to open a gop file and save it as an sgf file, IN CASES 1 AND 2 the parameter typeName received by dataOfType:error: is not “com.red-bean.sgf” (corresponding to the imported sgf extension) as it should, but “com.florrain.goperfekt-document” (corresponding to the exported gop extension). The result is a file with the sgf extension (such as “A.sgf”, as specified in the save panel), but this file is really a gop file with the wrong extension! You can see that by asking Goperfekt to open “A.sgf” (which will generate an alert), or by opening "A.sgf” in TextEdit. You can also add .gop to the name “A.sgf” and then ask Goperfekt to open “A.sgf.gop”, which it will do without a problem. Nor is it possible to open an sgf file and save it as a gop file. Here the parameter typeName received by dataOfType:error: is not “com.florrain.goperfekt-document” (the exported type) as it should, but “com.red-bean.sgf” (the imported type). The result is a file with the gop extension (such as “A.gop”, as specified in the save panel), but this file is really an sgf file with the wrong extension! You can see that by asking Goperfekt to open “A.gop” (which will generate an alert), or by opening "A.gop” in TextEdit. You can also add .sgf to the name “A.gop” and then ask Goperfekt to open “A.gop.sgf”, which it will do without a problem. Somewhere behind the scenes (only in Goperfekt on macOS 15) NSDocument disregards what was specified by the user in the save panel and sends to dataAfType:error: the wrong file type! Why on Earth? If, after having created a file “A.sgf” that is really a gop file, I change something in the document and try to save this change in “A.sgf”, the system displays a somewhat puzzling alert, and diagnostic messages appear in the Xcode console. According to the circumstances, these messages can contain such puzzling labels as NSFileSandboxingRequestRelatedItemExtension or NSFileCoordinator. Similarly for a file “A.gop” that is really an sgf file. Conclusion: search as I may, I could not find what makes Goperfekt misbehave in macOS 15 but not in macOS 11 or 12, while the bare-bones Goperf behaves perfectly in all three versions.

I’m working with AppIntents and AppEntity to integrate my app’s data model into Shortcuts and Siri. In the example below, I define a custom FoodEntity and use it as a @Parameter in an AppIntent. I’m providing dynamic options for this parameter via an optionsProvider. In the Shortcuts app, everything works as expected: when the user runs the shortcut, they get a list of food options (from the dynamic provider) to select from. However, in Siri, the experience is different. Instead of showing the list of options, Siri asks the user to say the name of the food, and then tries to match it using EntityStringQuery. I originally assumed this might be a design decision to allow hands-free use with voice, but I found that if you use an AppEnum instead, Siri does present a tappable list of options. So now I’m wondering: why the difference? Is there a way to get the @Parameter with AppEntity + optionsProvider to show a tappable list in Siri like it does in Shortcuts or with an AppEnum? Any clarification on how EntityQuery.suggestedEntities() and DynamicOptionsProvider interact with Siri would be appreciated! struct CaloriesShortcuts: AppShortcutsProvider { static var appShortcuts: [AppShortcut] { AppShortcut( intent: AddCaloriesInteractive(), phrases: [ "Add to \(.applicationName)" ], shortTitle: "Calories", systemImageName: "fork" ) } } struct AddCaloriesInteractive: AppIntent { static var title: LocalizedStringResource = "Add to calories log" static var description = IntentDescription("Add Calories using Shortcuts.") static var openAppWhenRun: Bool = false static var parameterSummary: some ParameterSummary { Summary("Calorie Entry SUMMARY") } var displayRepresentation: DisplayRepresentation { DisplayRepresentation(stringLiteral:"Add to calorie log") } @Dependency private var persistenceManager: PersistenceManager @Parameter(title: LocalizedStringResource("Food"), optionsProvider: FoodEntityOptions()) var foodEntity: FoodEntity @MainActor func perform() async throws -> some IntentResult & ProvidesDialog { return .result(dialog: .init("Added \(foodEntity.name) to calorie log")) } } struct FoodEntity: AppEntity { static var defaultQuery = FoodEntityQuery() @Property var name: String @Property var calories: Int init(name: String, calories: Int) { self.name = name self.calories = calories } static var typeDisplayRepresentation: TypeDisplayRepresentation { TypeDisplayRepresentation(name: "Calorie Entry") } static var typeDisplayName: LocalizedStringResource = "Calorie Entry" var displayRepresentation: AppIntents.DisplayRepresentation { DisplayRepresentation(title: .init(stringLiteral: name), subtitle: "\(calories)") } var id: String { return name } } struct FoodEntityQuery: EntityQuery { func entities(for identifiers: [FoodEntity.ID]) async throws -> [FoodEntity] { var result = [FoodEntity]() for identifier in identifiers { if let entity = FoodDatabase.allEntities().first(where: { $0.id == identifier }) { result.append(entity) } } return result } func suggestedEntities() async throws -> [FoodEntity] { return FoodDatabase.allEntities() } } extension FoodEntityQuery: EntityStringQuery { func entities(matching string: String) async throws -> [FoodEntity] { return FoodDatabase.allEntities().filter({$0.name.localizedCaseInsensitiveCompare(string) == .orderedSame}) } } struct FoodEntityOptions: DynamicOptionsProvider { func results() async throws -> ItemCollection<FoodEntity> { ItemCollection { ItemSection("Section 1") { for entry in FoodDatabase.allEntities() { entry } } } } } struct FoodDatabase { // Fake data static func allEntities() -> [FoodEntity] { [ FoodEntity(name: "Orange", calories: 2), FoodEntity(name: "Banana", calories: 2) ] } }

Hello Team, We have Advanced App Clip Experiences live but we have add App Clip experience URL since long ago but status remains as Received and never changed to Published, can you please help us to fix this issue. Please see attached. Thanks

I was trying to move from appkit to swiftUI. As a learning project I am building a cellular automata style project based on Pattersons Worms.. I am trying something similar to the EA game Worms? for the Commodore 64. There is a video on YouTube of the game running, but I'm not allowed to link it here. The problem I have is that the animation is driven by a ruleset. When the automata hits a configuration that is not in the ruleset it is supposed to stop and ask the user. For each step the model returns either the next move, or nil to indicate the user need to make a choice that will be sent back to the model to be added to the ruleset. My current approach, and I might be following the wrong path, is a ZStack where the bottom level is the grid, the middle level is the established worm segments and the top level is either the animation of the next worm segment or the user chooser to choose the segment. I've only implemented the animation of the next worm segment. The idea is that when the model adds a segment that it first animated at the top level and then displayed by the middle level. Then the top level animates the next segment. I was animating the trim on the segment to draw the line. If the current move is nil, then the middle level draws the segment. If current move has a value, the animation draw it, and then on completion sets the current move to nil so that the bottom level draw it. The problem I ran into was resetting the animation to draw the next segment. I've tried two approaches. in one the completion resets the animation boolean variable, but I need a manual step to set the next stage of the animation. The other uses the completion to set the next step, but it the animation doesn't run for the step and the display is an always a step behind. I'm not sure how to both update the move and reset the animation at the same time. I have uploaded a simplified version without the full grid and simplified model to GitHub (https://github.com/thomasrdean/AnimationTest). Is there any other way to reset the animation the than the completion so I can use the completion to retrieve the next step from the model?

I have encountered the following error and reduced my code to the minimum necessary to reliably reproduce this error. Fatal error: Duplicate keys of type 'AnyHashable2' were found in a >Dictionary. This usually means either that the type violates Hashable's >requirements, or that members of such a dictionary were mutated after insertion. It occurs when instances of a swiftdata model are inserted (the error occurs reliably when inserting five or more instances. Fewer insertions seems to make the error either more rare or go away entirely) and a Picker with .menu pickerStyle is present. Any of the following changes prevents the error from occuring: adding id = UUID() to the Item class removing .tag(item) in the picker content using any pickerStyle other than .menu using an observable class instead of a swiftdata class I would greatly appreciate if anyone knows what exactly is going on here. Tested using XCode Version 16.4 (16F6), iPhone 16 Pro iOS 18.5 Simulator and iPhone 15 Pro iOS 18.5 real device. import SwiftUI import SwiftData @Model class Item { var name: String init(name: String) { self.name = name } } struct DuplicateKeysErrorView: View { @Environment(\.modelContext) private var modelContext @Query(sort: \Item.name) private var items: [Item] @State var selection: Item? = nil var body: some View { List { Picker("Picker", selection: $selection) { Text("Nil").tag(nil as Item?) ForEach(items) { item in Text(item.name).tag(item) } } .pickerStyle(.menu) Button("Add 5 items") { modelContext.insert(Item(name: UUID().uuidString)) modelContext.insert(Item(name: UUID().uuidString)) modelContext.insert(Item(name: UUID().uuidString)) modelContext.insert(Item(name: UUID().uuidString)) modelContext.insert(Item(name: UUID().uuidString)) } } .onAppear { try! modelContext.delete(model: Item.self) } } } #Preview { DuplicateKeysErrorView() .modelContainer(for: Item.self) }

When a new application runs on VisionOS 2.4 simulator and tries to access the Speech Framework, prompting a request for authorisation to use Speech Recognition, the application freezes. Using Swift 6. Report Identifier: FB17666252 @MainActor func checkAvailabilityAndPermissions() async { logger.debug("Checking speech recognition availability and permissions...") // 1. Verify that the speechRecognizer instance exists guard let recognizer = speechRecognizer else { logger.error("Speech recognizer is nil - speech recognition won't be available.") reportError(.configurationError(description: "Speech recognizer could not be created."), context: "checkAvailabilityAndPermissions") self.isAvailable = false return } // 2. Check recognizer availability (might change at runtime) if !recognizer.isAvailable { logger.error("Speech recognizer is not available for the current locale.") reportError(.configurationError(description: "Speech recognizer not available."), context: "checkAvailabilityAndPermissions") self.isAvailable = false return } logger.trace("Speech recognizer exists and is available.") // 3. Request Speech Recognition Authorization // IMPORTANT: Add `NSSpeechRecognitionUsageDescription` to Info.plist let speechAuthStatus = SFSpeechRecognizer.authorizationStatus() // FAILS HERE logger.debug("Current Speech Recognition authorization status: \(speechAuthStatus.rawValue)") if speechAuthStatus == .notDetermined { logger.info("Requesting speech recognition authorization...") // Use structured concurrency to wait for permission result let authStatus = await withCheckedContinuation { continuation in SFSpeechRecognizer.requestAuthorization { status in continuation.resume(returning: status) } } logger.debug("Received authorization status: \(authStatus.rawValue)") // Now handle the authorization result let speechAuthorized = (authStatus == .authorized) handleAuthorizationStatus(status: authStatus, type: "Speech Recognition") // If speech is granted, now check microphone if speechAuthorized { await checkMicrophonePermission() } } else { let speechAuthorized = (speechAuthStatus == .authorized) handleAuthorizationStatus(status: speechAuthStatus, type: "Speech Recognition") // If speech is already authorized, check microphone if speechAuthorized { await checkMicrophonePermission() } } }

Hi, I’d like to display items in a grid from right to left. Like the image: Is this possible with a grid? What would be the best approach in terms of performance?

QuickTime recording palette behaves in a way which I want to replicate in my desktop app - specifically the behaviour when switching spaces, it appears on top. Currently, my app appears on all spaces, and even over fullscreen applications BUT it already exists when I switch to the space, this feels disjointed. I can't find a solution to this behaviour. Here's the Window Collection Behaviours I've tried (on an NSPanel): FullScreenAuxiliary - appears over fullscreen apps. CanJoinAllSpaces - appears on all spaces. These two options make the dock show up on all spaces in the same position, but on each space they already exists. I've tried this behaviour too: MoveToActiveSpace - which as per docs would move the window into active space only when its reopened, mine stays open all the time. I can't find any more information on how QuickTime achieves this.

With iPadOS26, if I create a UITabBar, and use that to switch between views, the selected state never updates. I created this simple UIViewController to demonstrate the issue: class SimpleTabBarController: UIViewController, UITabBarDelegate { let tabBar = UITabBar() let redItem = UITabBarItem(title: "Red", image: nil, tag: 0) let blueItem = UITabBarItem(title: "Blue", image: nil, tag: 1) override func viewDidLoad() { super.viewDidLoad() view.backgroundColor = .white tabBar.items = [redItem, blueItem] tabBar.selectedItem = redItem tabBar.delegate = self tabBar.translatesAutoresizingMaskIntoConstraints = false view.addSubview(tabBar) NSLayoutConstraint.activate([ tabBar.leadingAnchor.constraint(equalTo: view.leadingAnchor), tabBar.trailingAnchor.constraint(equalTo: view.trailingAnchor), tabBar.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor) ]) updateBackground(for: redItem) } func tabBar(_ tabBar: UITabBar, didSelect item: UITabBarItem) { updateBackground(for: item) } private func updateBackground(for item: UITabBarItem) { switch item.tag { case 0: view.backgroundColor = .systemRed case 1: view.backgroundColor = .systemBlue default: view.backgroundColor = .white } } } The tabBar didSelect item method is called, and the background color gets updated as expected, but the selected state of the UITabBar stays the same. I files a feedback for a related issue: FB17841678

Hello I'm currently building a feature within an ios app using SwiftUI and Mapkit to record the gps cordinates of a user as they move and render the track on the map. the idea is not really to have a "track" but to have a visual representation of the area the user sees while they are moving around. I need this width/breadth to be relative to the map and not the screen, such that when I zoom in and out of the map, the size will adjust automatically.

I saw this demo on the website. Do you have the address for the demo? If not, how is the following image content implemented? Can you tell me which style of WindowGroup is used to create this custom window, and the buttons to move and close the window are located at the bottom of the menu bar. Thank you, thank [you]

I've been looking for a solution to configure the Apple TV remote(s) from the 5th generation and upwards. Some of the basic functionalities are disabling buttons on the physical remote control while maintaining proper functionality on remote controller apps on iOS devices. There seems to be a lack of relevant entitlements in that category, and without it I can't seem to figure out a way to make it work. Any ideas on the matter? Maybe a workaround that allows to configure the Apple TV to work with other remotes? Thank you in advance to anyone that put in thought to my query.

Why is the SwiftUI re-render the UI event if the view does not use the counter like in the example bellow...shouldn't SwiftUI framework be smart enough to detect that?? import SwiftUI class ViewModel: ObservableObject { @Published var counter: Int = 0 // Not used in the view's body @Published var displayText: String = "Hello" // Used in the view's body } struct ContentView: View { @StateObject private var viewModel = ViewModel() var body: some View { VStack { Text(viewModel.displayText) // Depends on displayText } .onChange(of: viewModel.counter) { newValue in print("Counter changed to: \(newValue)") } } } Is there any solution more elegant without using Publishers??

In SwiftUI for macOS, how can I hide the tab bar when using TabView? I would like to provide my own tab bar implementation. In AppKit's NSTabViewController, we can do the following: let tabViewController = NSTabViewController() tabViewController.tabStyle = .unspecified I've come across various posts that suggest using the .toolbar modifier, but none appear to work on macOS (or at least I haven't found the right implementation). struct ContentView: View { var body: some View { TabView { // ... content } <- which view modifier hides the tab bar? } } Latest macOS, Latest Xcode

The swift syntax compilation reported an error. as follows How should I be compatible

Help,I have encountered a thorny problem! In systems with iOS 16.5 and above, there is a probability that the keyboard will not disappear after it appears. And once it appears, unless the app is restarted, all places where the keyboard is used cannot be closed. I have tried using the forced shutdown method [UIView endEditing:YES], but it didn't work. When this exception occurs, I notice that there will be two UITextEffectsWindow at the same time. Does anyone know how to solve it?