At WWDC25 we launched a new type of Lab event for the developer community - Group Labs. A Group Lab is a panel Q&A designed for a large audience of developers. Group Labs are a unique opportunity for the community to submit questions directly to a panel of Apple engineers and designers. Here are the highlights from the WWDC25 Group Lab for UI Frameworks. How would you recommend developers start adopting the new design? Start by focusing on the foundational structural elements of your application, working from the "top down" or "bottom up" based on your application's hierarchy. These structural changes, like edge-to-edge content and updated navigation and controls, often require corresponding code modifications. As a first step, recompile your application with the new SDK to see what updates are automatically applied, especially if you've been using standard controls. Then, carefully analyze where the new design elements can be applied to your UI, paying particular attention to custom controls or UI that could benefit from a refresh. Address the large structural items first then focus on smaller details is recommended. Will we need to migrate our UI code to Swift and SwiftUI to adopt the new design? No, you will not need to migrate your UI code to Swift and SwiftUI to adopt the new design. The UI frameworks fully support the new design, allowing you to migrate your app with as little effort as possible, especially if you've been using standard controls. The goal is to make it easy to adopt the new design, regardless of your current UI framework, to achieve a cohesive look across the operating system. What was the reason for choosing Liquid Glass over frosted glass, as used in visionOS? The choice of Liquid Glass was driven by the desire to bring content to life. The see-through nature of Liquid Glass enhances this effect. The appearance of Liquid Glass adapts based on its size; larger glass elements look more frosted, which aligns with the design of visionOS, where everything feels larger and benefits from the frosted look. What are best practices for apps that use customized navigation bars? The new design emphasizes behavior and transitions as much as static appearance. Consider whether you truly need a custom navigation bar, or if the system-provided controls can meet your needs. Explore new APIs for subtitles and custom views in navigation bars, designed to support common use cases. If you still require a custom solution, ensure you're respecting safe areas using APIs like SwiftUI's safeAreaInset. When working with Liquid Glass, group related buttons in shared containers to maintain design consistency. Finally, mark glass containers as interactive. For branding, instead of coloring the navigation bar directly, consider incorporating branding colors into the content area behind the Liquid Glass controls. This creates a dynamic effect where the color is visible through the glass and moves with the content as the user scrolls. I want to know why new UI Framework APIs aren’t backward compatible, specifically in SwiftUI? It leads to code with lots of if-else statements. Existing APIs have been updated to work with the new design where possible, ensuring that apps using those APIs will adopt the new design and function on both older and newer operating systems. However, new APIs often depend on deep integration across the framework and graphics stack, making backward compatibility impractical. When using these new APIs, it's important to consider how they fit within the context of the latest OS. The use of if-else statements allows you to maintain compatibility with older systems while taking full advantage of the new APIs and design features on newer systems. If you are using new APIs, it likely means you are implementing something very specific to the new design language. Using conditional code allows you to intentionally create different code paths for the new design versus older operating systems. Prefer to use if #available where appropriate to intentionally adopt new design elements. Are there any Liquid Glass materials in iOS or macOS that are only available as part of dedicated components? Or are all those materials available through new UIKit and AppKit views? Yes, some variations of the Liquid Glass material are exclusively available through dedicated components like sliders, segmented controls, and tab bars. However, the "regular" and "clear" glass materials should satisfy most application requirements. If you encounter situations where these options are insufficient, please file feedback. If I were to create an app today, how should I design it to make it future proof using Liquid Glass? The best approach to future-proof your app is to utilize standard system controls and design your UI to align with the standard system look and feel. Using the framework-provided declarative API generally leads to easier adoption of future design changes, as you're expressing intent rather than specifying pixel-perfect visuals. Pay close attention to the design sessions offered this year, which cover the design motivation behind the Liquid Glass material and best practices for its use. Is it possible to implement your own sidebar on macOS without NSSplitViewController, but still provide the Liquid Glass appearance? While technically possible to create a custom sidebar that approximates the Liquid Glass appearance without using NSSplitViewController, it is not recommended. The system implementation of the sidebar involves significant unseen complexity, including interlayering with scroll edge effects and fullscreen behaviors. NSSplitViewController provides the necessary level of abstraction for the framework to handle these details correctly. Regarding the SceneDelagate and scene based life-cycle, I would like to confirm that AppDelegate is not going away. Also if the above is a correct understanding, is there any advice as to what should, and should not, be moved to the SceneDelegate? UIApplicationDelegate is not going away and still serves a purpose for application-level interactions with the system and managing scenes at a higher level. Move code related to your app's scene or UI into the UISceneDelegate. Remember that adopting scenes doesn't necessarily mean supporting multiple scenes; an app can be scene-based but still support only one scene. Refer to the tech note Migrating to the UIKit scene-based life cycle and the Make your UIKit app more flexible WWDC25 session for more information.

For some reason, Carplay 18.x works fine, however in under certain situations in our app, Carplay 26.x breaks. The expected grid layout should be : However, this is what we see in some cases when we update our templates. I have not been able to isolate the cause of this issue. Has anyone ever seen this happen on their CarPlay apps and discovered the cause? The data sets fed into the templates are identical, the difference is in some of the timing and update order...

Hello everyone, I have an app that is used in the education sector for high stakes assessment testing. I reviewed a lot of the WWDC2025 information in June, however, it seems we missed something critical in the What's new in UIKIt presentation. That would be the deprecation of UIRequiresFullScreen. We currently use this in our app and have been using it since iOS/iPad OS 9 when our app was written. The deprecation of this property has caused some major issues in our layout. Keep in mind we are a hybrid app so our mobile app is self-hosting a fullscreen version of WKWebView under the hood. This is common across assessment developers in the education sector. I removed the property and went through the migration guide (https://developer.apple.com/documentation/technotes/tn3192-migrating-your-app-from-the-deprecated-uirequiresfullscreen-key) and it doesn't appear to be straight forward on how to lock the orientation in landscape. I tried several different approaches: Requesting the screen orientation lock we had issues where if a user launched it in portrait it would be locked to portrait but we would want to update the display to shift it to landscape as a business requirement supporting both landscape right and landscape left. We also tried overriding the method supportedInterfaceOrientations and utilizing the .landscape enum with no success. It fires just fine but nothing takes effect. Backwards compatibility support there is no guidance on backwards compatibility support and Xcode wants us to do an availability check when using some of the new methods for updating geometry. What is the guidance in this case because we support back to iPadOS 16.0 as a business requirement. Can anyone give us some insight as we are current trying to get ahead of this while 26.3 is still in beta as this would affect our customers deeply because of the UI jank we get as a result of this deprecation.

We have submitted a feedback for this issue: FB21230723 We're building a note-taking app for iOS and macOS that uses both UITextView and NSTextView. When performing text input that involves a marked range (such as Japanese input) in a UITextView or NSTextView with a UITextViewDelegate or NSTextViewDelegate set, the text view's marked range (markedTextRange / markedRange()) has not yet been updated at the moment when shouldChangeTextIn is invoked. UITextViewDelegate.textView(_:shouldChangeTextIn:replacementText:) NSTextViewDelegate.textView(_:shouldChangeTextIn:replacementString:) The current behavior is this when entering text in Japanese: (same for NSTextView) func textView(_ textView: UITextView, shouldChangeTextIn range: NSRange, replacementText text: String) -> Bool { print(textView.markedTextRange != nil) // prints out false DispatchQueue.main.async { print(textView.markedTextRange != nil) // prints out true } } However, we need the value of markedTextRange right away in order to determine whether to return true or false from this method. Is there any workaround for this issue?

I'm attempting to use WebAuthenticationSession from Authentication Services (https://developer.apple.com/documentation/authenticationservices/webauthenticationsession) in a SwiftUI app on macOS. According to the docs, it is supported since macOS 13.3 and I'm testing on 26. I'm deploying the same code to iOS as well, and it works there in a simulator, but I sometimes have to tap the button that triggers the authenticate(…) call more than once. I've attached a simplified and redacted version of the code below. It works on iOS, but on macOS the authenticate call never returns. There seems to be very little documentation and discussion about this API and I'm running out of ideas for getting this to work. Is this just a bug that Apple hasn't noticed? import SwiftUI import AuthenticationServices import Combine struct PreAuthView: View { @Binding var appState: AppState @Binding var credentials: Credentials? @Environment(\.webAuthenticationSession) private var webAuthenticationSession @State private var plist: String = "" func authenticate() async { guard var authUrl = URL(string: "REDACTED") else { return } guard var tokenUrl = URL(string: "REDACTED") else { return } let redirectUri = "REDACTED" let clientId = "REDACTED" let verifier = "REDACTED" let challenge = "REDACTED" authUrl.append(queryItems: [ .init(name: "response_type", value: "code"), .init(name: "client_id", value: clientId), .init(name: "redirect_uri", value: redirectUri), .init(name: "state", value: ""), .init(name: "code_challenge", value: challenge), .init(name: "code_challenge_method", value: "S256"), ]) let scheme = "wonderswitcher" do { print("Authenticating") let redirectUrl = try await webAuthenticationSession.authenticate( using: authUrl, callback: .https(host: "REDACTED", path: "REDACTED"), additionalHeaderFields: [:], ) print("Authenticated?") print(redirectUrl) let queryItems = URLComponents(string: redirectUrl.absoluteString)?.queryItems ?? [] let code = queryItems.filter({$0.name == "code"}).first?.value let session = URLSession(configuration: .ephemeral) tokenUrl.append(queryItems: [ .init(name: "grant_type", value: "authorization_code"), .init(name: "code", value: code), .init(name: "redirect_uri", value: redirectUri), .init(name: "code_verifier", value: verifier), .init(name: "client_id", value: clientId), ]) var request = URLRequest(url: tokenUrl) request.httpMethod = "POST" let response = try await session.data(for: request) print(response) } catch { return } } var body: some View { NavigationStack { VStack(alignment: .leading, spacing: 12) { Text("This is the pre-auth view.") HStack { Button("Log in") { Task { await authenticate() } } Spacer() } Spacer(minLength: 0) } .padding() .navigationTitle("Pre-Auth") } } } #Preview { PreAuthView(appState: .constant(.preAuth), credentials: .constant(nil)) }

When using UITraitBridgedEnvironmentKey to pass a trait value to the swift environment, it causes a crash when trying to access the value from the environment. The issue seems to be related to how swift uses the UITraitBridgedEnvironmentKey protocol since the crash occurs in swift::_getWitnessTable () from lazy protocol witness table accessor…. It can occur when calling any function that is generic using the UITraitBridgedEnvironmentKey type. I originally encountered the issue when trying to use a UITraitBridgedEnvironmentKey in SwiftUI, but have been able to reproduce the issue with any function with a similar signature. https://developer.apple.com/documentation/swiftui/environmentvalues/subscript(_:)-9zku Steps to Reproduce Requirements for the issue to occur Project with a minimum iOS version of iOS 16 Build the project with Xcode 26 Run on iOS 18 Add the following code to a project and call foo(key: MyCustomTraitKey.self) from anywhere. @available(iOS 17.0, *) func foo<K>(key: K.Type) where K: UITraitBridgedEnvironmentKey { // Crashes before this is called } @available(iOS 17.0, *) public enum MyCustomTraitKey: UITraitBridgedEnvironmentKey { public static let defaultValue: Bool = false public static func read(from traitCollection: UITraitCollection) -> Bool { false } public static func write(to mutableTraits: inout UIMutableTraits, value: Bool) {} } // The crash will occur when calling this. It can be added to a project anywhere // The sample project calls it from scene(_:willConnectTo:options:) foo(key: MyCustomTraitKey.self) For example, I added it to the SceneDelegate in a UIKit Project class SceneDelegate: UIResponder, UIWindowSceneDelegate { var window: UIWindow? func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) { if #available(iOS 17, *) { // The following line of code can be placed anywhere in a project, `SceneDelegate` is just a convenient place to put it to reproduce the issue. foo(key: MyCustomTraitKey.self) // ^ CRASH: Thread 1: EXC_BAD_ACCESS (code=1, address=0x10) } } } Actual Behaviour The app crashes with the stack trace showing the place calling foo but before foo is actually called. (ie, a breakpoint or print in foo is never hit) #0 0x000000019595fbc4 in swift::_getWitnessTable () #1 0x0000000104954128 in lazy protocol witness table accessor for type MyCustomTraitKey and conformance MyCustomTraitKey () #2 0x0000000104953bc4 in SceneDelegate.scene(_:willConnectTo:options:) at .../SceneDelegate.swift:20 The app does not crash when run on iOS 17, or 26 or when the minimum ios version is raised to iOS 17 or higher. It also doesn't crash on iOS 16 since it's not calling foo since UITraitBridgedEnvironmentKey was added in iOS 17. Expected behaviour The app should not crash. It should call foo on iOS 17, 18, and 26.

Hello, I've a question about performance when trying to render lots of items coming from SwiftData via a @Query on a SwiftUI List. Here's my setup: // Item.swift: @Model final class Item: Identifiable { var timestamp: Date var isOptionA: Bool init() { self.timestamp = Date() self.isOptionA = Bool.random() } } // Menu.swift enum Menu: String, CaseIterable, Hashable, Identifiable { var id: String { rawValue } case optionA case optionB case all var predicate: Predicate<Item> { switch self { case .optionA: return #Predicate { $0.isOptionA } case .optionB: return #Predicate { !$0.isOptionA } case .all: return #Predicate { _ in true } } } } // SlowData.swift @main struct SlowDataApp: App { var sharedModelContainer: ModelContainer = { let schema = Schema([Item.self]) let modelConfiguration = ModelConfiguration(schema: schema, isStoredInMemoryOnly: false) return try! ModelContainer(for: schema, configurations: [modelConfiguration]) }() var body: some Scene { WindowGroup { ContentView() } .modelContainer(sharedModelContainer) } } // ContentView.swift struct ContentView: View { @Environment(\.modelContext) private var modelContext @State var selection: Menu? = .optionA var body: some View { NavigationSplitView { List(Menu.allCases, selection: $selection) { menu in Text(menu.rawValue).tag(menu) } } detail: { DemoListView(selectedMenu: $selection) }.onAppear { // Do this just once // (0..<15_000).forEach { index in // let item = Item() // modelContext.insert(item) // } } } } // DemoListView.swift struct DemoListView: View { @Binding var selectedMenu: Menu? @Query private var items: [Item] init(selectedMenu: Binding<Menu?>) { self._selectedMenu = selectedMenu self._items = Query(filter: selectedMenu.wrappedValue?.predicate, sort: \.timestamp) } var body: some View { // Option 1: touching `items` = slow! List(items) { item in Text(item.timestamp.description) } // Option 2: Not touching `items` = fast! // List { // Text("Not accessing `items` here") // } .navigationTitle(selectedMenu?.rawValue ?? "N/A") } } When I use Option 1 on DemoListView, there's a noticeable delay on the navigation. If I use Option 2, there's none. This happens both on Debug builds and Release builds, just FYI because on Xcode 16 Debug builds seem to be slower than expected: https://indieweb.social/@curtclifton/113273571392595819 I've profiled it and the SwiftData fetches seem blazing fast, the Hang occurs when accessing the items property from the List. Is there anything I'm overlooking or it's just as fast as it can be right now?

I am porting my app to SwiftUI and I am hitting a wall when using ScrollView. In my application, I have nested scrollViews to represent a scheduler. outer vertical scroll view inner horizontal scroll view that allows to horizontally scroll multiple columns in the scheduler each column in the inner scroll view is a view that needs to allow for a drag to initiate the creation of a new appointment on macOS, I do a mouse-down drag, so it does not affect the scroll view and works fine on iOS, if I add a drag gesture to the column, it short circuits the scroll view and scrolling becomes disabled. To initiate the drag, there is a long-press, and that gesture is fine, only the subsequent drag gesture is problematic. I have attached URL to a test app. The UI allows you to toggle the drag gesture. Hopefully, someone can help to get it to work since I would eventually like to port the macOS target to Catalyst. Download Test App

I was wondering what the recommended way is to persist user settings with SwiftData? It seems the SwiftData API is focused around querying for multiple objects, but what if you just want one UserSettings object that is persisted across devices say for example to store the user's age or sorting preferences. Do we just create one object and then query for it or is there a better way of doing this? Right now I am just creating: import SwiftData @Model final class UserSettings { var age: Int = 0 var sortAtoZ: Bool = true init(age: Int = 0, sortAtoZ: Bool = true) { self.age = age self.sortAtoZ = sortAtoZ } } In my view I am doing as follows: import SwiftUI import SwiftData struct SettingsView: View { @Environment(\.modelContext) var context @Query var settings: [UserSettings] var body: some View { ForEach(settings) { setting in let bSetting = Bindable(setting) Toggle("Sort A-Z", isOn: bSetting.sortAtoZ) TextField("Age", value: bSetting.age, format: .number) } .onAppear { if settings.isEmpty { context.insert(UserSettings(age: 0, sortAtoZ: true)) } } } } Unfortunately, there are two issues with this approach: I am having to fetch multiple items when I only ever want one. Sometimes when running on a new device it will create a second UserSettings while it is waiting for the original one to sync from CloudKit. AppStorage is not an option here as I am looking to persist for the user across devices and use CloudKit syncing.

Hello, following Apple docs and guidance from WWDC I'm trying to set a minimum size for my scene, for example I want it to minimally be 3/4 the width and height of the device. I've removed the UIRequiresFullScreen Info.plist property. The app does run in windowed mode and does have a resizing handle. I've implemented this UISceneDelegate: var window: UIWindow? var cameraWindow: UIWindow? func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) { window = UIWindow(windowScene: scene as! UIWindowScene) // setup root view controller let rootViewController: MainViewController = MainViewController(nibName: "Main", bundle: nil) let navController: NavigationController = NavigationController(rootViewController: rootViewController) navController.modalPresentationStyle = .fullScreen // set reasonable minimum sizes for WindowScene if let windowScene: UIWindowScene = scene as? UIWindowScene { if #available(iOS 16.0, *) { let windowSize: CGSize = windowScene.coordinateSpace.bounds.size windowScene.sizeRestrictions?.minimumSize.width = windowSize.width * 0.75 windowScene.sizeRestrictions?.minimumSize.height = windowSize.height * 0.75 } } window?.rootViewController = navController window?.makeKeyAndVisible() } } And proven via debugger that this code is being executed. I have the following observations: After setting these minimumSize properties I see the width and height both contain 0 afterwards, as if the property settings are discarding the value. I've even used hard-coded values instead of reading the coordinateSpace.bounds, to no avail. The scene is allowing resizing well below these minimums, about 1/3 the width and 1/2 the height. Anyone else observed this and have suggestions?

I have some really straight forward code in a sample project. For some reason when the app launches the title is blurred obscured by scrolledgeeffect blur. If I scroll down the title goes small as it should do and all looks fine. If I scroll back to the top, just before it reaches the top the title goes large and it looks correct, but once it actually reaches/snaps to the top, is then incorrectly blurs again. Is there anything obvious I'm doing wrong? Is this a bug? struct ContentView: View { var body: some View { NavigationStack { ScrollView { VStack { Rectangle().fill(Color.red.opacity(0.2)).frame(height: 200) Rectangle().frame(height: 200) Rectangle().frame(height: 200) Rectangle().frame(height: 200) Rectangle().frame(height: 200) } } .safeAreaBar(edge: .top) { Text("Test") } .navigationTitle(Title") } } }

[Also submitted as FB21536505] When presenting a NavigationStack inside a .sheet, applying .tint(Color) does not affect the system back button on pushed destinations. The sheet’s close button adopts the tint, but the back chevron remains the default system color. REPRO Create a new iOS project and replace ContentView.swift with the code below. —or— Present a .sheet containing a NavigationStack. Apply .tint(.red) to the NavigationStack or sheet content. Push a destination using NavigationLink. EXPECTED The back button chevron adopts the provided tint color, consistent with other toolbar buttons and UIKit navigation behavior. ACTUAL The back button chevron remains the default system color. NOTES Reproduces consistently on: iOS 26.2 (23C54) iOS 26.3 (23D5089e) SCREEN RECORDING SAMPLE CODE import SwiftUI struct ContentView: View { @State private var isSheetPresented = false var body: some View { Button("Open Settings Sheet") { isSheetPresented = true } .sheet(isPresented: $isSheetPresented) { NavigationStack { List { NavigationLink("Push Detail") { DetailView() } } .navigationTitle("Settings") .navigationBarTitleDisplayMode(.inline) .toolbar { ToolbarItem(placement: .automatic) { Button("Close", systemImage: "xmark") { isSheetPresented = false } } } } .tint(.red) } } } private struct DetailView: View { var body: some View { List { Text("Detail View") } .navigationTitle("Detail") .navigationBarTitleDisplayMode(.inline) } }

Dear Apple Customer Support, I’m developing a new Swift iPadOS app and I want the app to run in landscape only (portrait disabled). In Xcode, under Target &gt; General &gt; Deployment Info &gt; Device Orientation, if I select only Landscape Left and Landscape Right, the app builds successfully, but during upload/validation I receive this message and the upload is blocked: “Update the Info.plist: Support for all orientations will soon be required.” Could you please advise what the correct/recommended way is to keep an iPad app locked to landscape only while complying with the current App Store upload requirements? Is there a specific Info.plist configuration (e.g., UISupportedInterfaceOrientations~ipad) or another setting that should be used? Thank you,

Description Title of the view controller is not displayed for the 1st view controller in navigation stack. Is there a way to show it? Main problem is that selected tab is a UITabGroup and there's no way to understand which child of it is currently selected without opening the sidebar or guessing by the content. Human Interface Guidelines In the guidelines there are examples with title visible on the iPad in similar case: https://developer.apple.com/design/human-interface-guidelines/tab-bars Code import UIKit import SwiftUI struct TestView: View { var tab: UITab? let id = UUID() var body: some View { ScrollView { HStack { Spacer() VStack { Text(tab?.title ?? id.uuidString) } Spacer() } .frame(height: 1000) .background(.red) .onTapGesture { tab?.viewController?.navigationController?.pushViewController( TestViewController(nil), animated: true ) } } } } class TestViewController: UIHostingController<TestView> { let _tab: UITab? init(_ tab: UITab?) { self._tab = tab super.init(rootView: TestView(tab: _tab)) } @MainActor @preconcurrency required dynamic init?(coder aDecoder: NSCoder) { fatalError("init(coder:) has not been implemented") } override func viewDidLoad() { super.viewDidLoad() navigationItem.title = _tab?.title ?? "tab-nil" } } class ViewController: UITabBarController { override func viewDidLoad() { super.viewDidLoad() mode = .tabSidebar let provider: (UITab) -> UIViewController = { tab in print(tab) return TestViewController(tab) } let tab1 = UITabGroup( title: "Tab 1", image: UIImage(systemName: "1.square.fill"), identifier: "tab1", children: [ UITab(title: "Sub 1", image: UIImage(systemName: "1.circle"), identifier: "First Tab", viewControllerProvider: provider), UITab(title: "Sub 2", image: UIImage(systemName: "2.circle"), identifier: "Second Tab", viewControllerProvider: provider) ]) tab1.selectedChild = tab1.children[0] tab1.managingNavigationController = UINavigationController() let tab2 = UITabGroup( title: "Tab 2", image: UIImage(systemName: "2.square.fill"), identifier: "Section one", children: [ UITab( title: "Sub 1", image: UIImage(systemName: "a.circle"), identifier: "Section 1, item A", viewControllerProvider: provider), UITabGroup(title: "Sub Group", image: nil, identifier: "q", children: [ UITab( title: "Item 1", image: UIImage(systemName: "b.circle"), identifier: "c1", viewControllerProvider: provider), UITab( title: "Item 2", image: UIImage(systemName: "b.circle"), identifier: "c2", viewControllerProvider: provider) ], viewControllerProvider: provider ), ] ) tab2.selectedChild = tab2.children[0] tab2.managingNavigationController = UINavigationController() tabs = [ tab1, tab2, ] selectedTab = tab1 } }

The new .searchToolbarBehavior(.minimized) modifier leads to a choppy animation both on device and SwiftUI canvas (iOS 26.2): I assume this is not the intended behaviour (reported under FB21572657), but since I almost never receive any feedback to my reports, I wanted to see also here, whether you experience the same, or perhaps I use the modifier incorrectly? struct SwiftUIView: View { @State var isSearchPresented: Bool = false @State var searchQuery: String = "" var body: some View { TabView { Tab { NavigationStack { ScrollView { Text(isSearchPresented.description) } .navigationTitle("Test") } .searchable(text: $searchQuery, isPresented: $isSearchPresented) .searchToolbarBehavior(.minimize) // **Choppy animation comes from here?** } label: { Label("Test", systemImage: "calendar") } Tab { Text("123") } label: { Label("123", systemImage: "globe") } } } } #Preview { if #available(iOS 26, *) { SwiftUIView() } else { // Fallback on earlier versions } }

Hello, I'm trying to make a white-Label sort of thing for my app, that is: a script runs before the app launches, sets a certain LaunchAgent command that sets and environment variable, and based on that variable's value tha main app's icon changes to a certain logo (change only happens in the dock because changing the icon on disk breaks the signature) When the app launches it takes a noticeable time until the dock icon changes to what I want, so I worked around that by setting the app's plist property to hide the dock icon and then when the app is launched I call an objc++ function to display the icon in the dock again (this time it displays as the new icon) The showing happens through [NSApp setActivationPolicy:NSApplicationActivationPolicyRegular]; The problem happens when I try to close the app, it returns back to the old logo before closing which is what I want to prevent. I tried hiding the app dock icon before closing but even the hiding itself changes the icon before hiding The hiding happens through [NSApp setActivationPolicy:NSApplicationActivationPolicyProhibited]; My goal is that the main app icon doesn't appear to the user through the dock, and that the icon that is only visible is the other one that changes during runtime The reason for this is that I have an app that should be visible differently depending on an environment variable that I set using an installer app. The app is the same for all users with very minor UI adjustments depending on that env variable's value. So instead of creating different versions of the app I'd like to have just 1 version that adjusts differently depending on the env variable's value. Somehow this is the only step left to have a smooth experience Feel free to ask more clarification questions I'd be happy to help Thank you

I am struggling to change the tint of the back button in an UINavigationItem. In iOS 18.6 it looks like this while on iOS 26 the same looks like this I can live without the Dictionary but I'd like to get the blue color back. In viewDidLoad() I have tried navigationItem.backBarButtonItem?.tintColor = .link but this did not work since navigationItem.backBarButtonItem is nil. My second attempt was navigationController?.navigationBar.tintColor = .link but this didn't work either. I have even set the Global Tint to Link Color but this had no effect either. Does anyone have an idea how to change the tint of the back button in an UINavigationItem on iOS 26?

I'm working on a watchOS app using SwiftUI that updates its UI based on regular, time-driven logic. On a real Apple Watch, after the app has been running for ~1 minute, the device enters Always-On / power-saving display mode (screen dimmed, wrist down). From that point on, SwiftUI UI updates become noticeably delayed. The underlying logic continues to run correctly, but the UI only redraws sporadically and often "catches up" once the screen becomes fully active again. The app is running in workout mode, which keeps it alive and maintains WatchConnectivity, but this does not prevent UI redraw throttling. Below is a minimal reproducible example that demonstrates the issue. PlaybackModel.swift import SwiftUI @MainActor final class PlaybackModel: ObservableObject { @Published var beat: Int = 0 private var timer: Timer? func start() { timer?.invalidate() timer = Timer.scheduledTimer(withTimeInterval: 0.5, repeats: true) { _ in Task { @MainActor in self.beat += 1 } } } func stop() { timer?.invalidate() } } ContentView.swift (watchOS) import SwiftUI struct ContentView: View { @StateObject private var model = PlaybackModel() var body: some View { VStack { Text("Beat: \(model.beat)") .font(.largeTitle) } .onAppear { model.start() } .onDisappear { model.stop() } } } Observed Behavior • The beat value continues to increase reliably. • After the watch enters Always-On / power-saving mode, SwiftUI redraws are delayed or skipped. • When the screen becomes fully active again, the UI catches up. Questions: • Is this UI redraw throttling in Always-On / power-saving mode an unavoidable system limitation on watchOS? • Is there any supported way to keep consistent SwiftUI update frequency while the app is visible but dimmed?

Are there tools to inspect why a drag-and-drop drop is not triggering in a SwiftUI app? I've declared .draggable on the dragging view, and .dropDestination on the receiving TabContent Tab view. This combination of modifiers is working on a smaller demo app that I have, but not on my more complex one. Is there a means to debug this in SwiftUI? I'd like to see if the drag-and-drop pasteboard actually has what I think it should have on it. Notably: "TabContent" has a far more restricted list of modifiers that can be used on it.

Is anyone else getting new warning about menu items with submenus when running on Tahoe? I'm getting big performance problems using my menu as well as seeing these messages and I'm wondering if there's a connection. My app is faceless with a NSStatusItem with an NSMenu. Specifically it's my own subclass of NSMenu where I have a lot of code to manage the menu's dynamic behavior. This code is directly in the menu subclass instead of in a controller because the app I forked had it this way, a little wacky but I don't see it being a problem. A nib defines the contents of the menu, and it's instantiated manually with code like: var nibObjects: NSArray? = [] guard let nib = NSNib(nibNamed: "AppMenu", bundle: nil) else { ... } guard nib.instantiate(withOwner: owner, topLevelObjects: &nibObjects) else { ... } guard let menu = nibObjects?.compactMap({ $0 as? Self }).first else { ... } Within that nib.instantiate call I see a warning logged that seems new to Tahoe, before the menu's awakeFromNib is called, that says (edited): Internal inconsistency in menus - menu <NSMenu: 0x6000034e5340> believes it has <My_StatusItem_App.AppMenu: 0x7f9570c1a440> as a supermenu, but the supermenu does not seem to have any item with that submenu My_StatusItem_App.AppMenu: 0x7f9570c1a440 is my menu belonging to the NSStatusItem, NSMenu: 0x6000034e5340 is the submenu of one of its menu items. At a breakpoint in the NSMenu subclass's awakeFromNib I print self and see clear evidence of the warning's incorrectness. Below is a snippet of the console including the full warning, only edited for clarity and brevity. It shows on line 32 menu item with placeholder title "prototype batch item" that indeed has that submenu. Internal inconsistency in menus - menu <NSMenu: 0x6000034e5340> Title: Supermenu: 0x7f9570c1a440 (My StatusItem App), autoenable: YES Previous menu: 0x0 (None) Next menu: 0x0 (None) Items: ( "<NSMenuItem: 0x6000010e4fa0 Do The Thing Again, ke mask='<none>'>", "<NSMenuItem: 0x6000010e5040 Customize\U2026, ke mask='<none>'>", "<NSMenuItem: 0x6000010e50e0, ke mask='<none>'>" ) believes it has <My_StatusItem_App.AppMenu: 0x7f9570c1a440> Title: My StatusItem App Supermenu: 0x0 (None), autoenable: YES Previous menu: 0x0 (None) Next menu: 0x0 (None) Items: ( ) as a supermenu, but the supermenu does not seem to have any item with that submenu (lldb) po self <My_StatusItem_App.AppMenu: 0x7f9570c1a440> Title: My StatusItem App Supermenu: 0x0 (None), autoenable: YES Previous menu: 0x0 (None) Next menu: 0x0 (None) Items: ( "<NSMenuItem: 0x6000010fd7c0 About My StatusItem App\U2026, ke mask='<none>', action: showAbout:, action image: info.circle>", "<NSMenuItem: 0x6000010fd860 Show Onboarding Window\U2026, ke mask='Shift', action: showIntro:>", "<NSMenuItem: 0x6000010fd900 Update Available\U2026, ke mask='<none>', action: installUpdate:, standard image: icloud.and.arrow.down, hidden>", "<NSMenuItem: 0x6000010e46e0, ke mask='<none>'>", "<NSMenuItem: 0x6000010e4780 Start The Thing, ke mask='<none>', action: startTheThing:>", "<NSMenuItem: 0x6000010e4dc0 \U2318-\U232b key detector item, ke mask='<none>', view: <My_StatusItem_App.KeyDetectorView: 0x7f9570c1a010>>", "<NSMenuItem: 0x6000010e4e60, ke mask='<none>'>", "<NSMenuItem: 0x6000010e4f00 saved batches heading item, ke mask='<none>', view: <NSView: 0x7f9570b4be10>, hidden>", "<My_StatusItem_App.BatchMenuItem: 0x6000016e02c0 prototype batch item, ke mask='<none>', action: replaySavedBatch:, submenu: 0x6000034e5340 ()>", "<NSMenuItem: 0x6000010f7d40, ke mask='<none>'>", "<My_StatusItem_App.ClipMenuItem: 0x7f956ef14fd0 prototype copy clip item, ke mask='<none>', action: copyClip:>", "<NSMenuItem: 0x6000010fa620 Settings\U2026, ke='Command-,', action: showSettings:>", "<NSMenuItem: 0x6000010fa6c0, ke mask='<none>'>", "<NSMenuItem: 0x6000010fa760 Quit My StatusItem App, ke='Command-Q', action: quit:>" ) Is this seemingly incorrect inconsistency message harmless? Am I only grasping at straws to think it has some connection to the performance issues with this menu?

When I have a TextField or TextEditor, tapping into it produces these two console entries about 18 times each: CHHapticPattern.mm:487 +[CHHapticPattern patternForKey:error:]: Failed to read pattern library data: Error Domain=NSCocoaErrorDomain Code=260 "The file “hapticpatternlibrary.plist” couldn’t be opened because there is no such file." UserInfo={NSFilePath=/Library/Audio/Tunings/Generic/Haptics/Library/hapticpatternlibrary.plist, NSURL=file:///Library/Audio/Tunings/Generic/Haptics/Library/hapticpatternlibrary.plist, NSUnderlyingError=0x600000ca1b30 {Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"}} <_UIKBFeedbackGenerator: 0x600003505290>: Error creating CHHapticPattern: Error Domain=NSCocoaErrorDomain Code=260 "The file “hapticpatternlibrary.plist” couldn’t be opened because there is no such file." UserInfo={NSFilePath=/Library/Audio/Tunings/Generic/Haptics/Library/hapticpatternlibrary.plist, NSURL=file:///Library/Audio/Tunings/Generic/Haptics/Library/hapticpatternlibrary.plist, NSUnderlyingError=0x600000ca1b30 {Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"}} My app does not use haptics. This doesn't appear to cause any issues, although entering text can feel a bit sluggish (even on device), but I am unable to determine relatedness. None-the-less, it definitely is a lot of log noise. Code to reproduce in simulator (xcode 26.2; ios 26 or 18, with iPhone 16 Pro or iPhone 17 Pro): import SwiftUI struct ContentView: View { @State private var textEntered: String = "" @State private var textEntered2: String = "" @State private var textEntered3: String = "" var body: some View { VStack { Spacer() TextField("Tap Here", text: $textEntered) TextField("Tap Here Too", text: $textEntered2) TextEditor(text: $textEntered3) .overlay(RoundedRectangle(cornerRadius: 8).strokeBorder(.primary, lineWidth: 1)) .frame(height: 100) Spacer() } } } #Preview { ContentView() } Tapping back and forth in these fields generates the errors each time. Thanks, Steve