Hi, Is there any way of changing the contentInset (UIKit variant) of a List in SwiftUI? I do not see any APIs for doing so, the closest I gotten is to use safeAreaInset . While visually that works the UX is broken as you can no longer "scroll" from the gap made by the .safeAreaInset(edge:alignment:spacing:content:) I have subbmited a feedback suggestion: FB16866956

Hi, I am trying to create a local backup + restore when using SwiftUI and CoreData but I am facing errors left and right. the latest error I am stuck on is: *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'executeFetchRequest:error: A fetch request must have an entity.' Here is what am trying to do: Creating a backup (already solved using NSPersistentStoreCoordinator.migratePersistentStore(_:to:options:type:)) Create a new NSPersistentContainer and call its NSPersistentContainer.loadPersistentStores(completionHandler:) (already solved, load is successful) Update the .environment(.managedObjectContext, viewModel.context) so that SwiftUI uses the new context. (HERE is where the error appears) Any help would be appreciated. Here is some sample code of SwiftUI part of the main view: class ViewModel: ObservableObject { @Published var context: NSManagedObjectContext } @main struct MyApp: App { @StateObject var viewModel: ViewModel var body: some Scene { WindowGroup { ContentView() .environment(\.managedObjectContext, viewModel.context) } } }

The save credentials prompt is not shown after clicking the submit button in the following setup. The prompt is shown if I move the email field before the login field. Is it really required to have login and password fields at the end of the registration form? Or is there some API that can trigger the prompt? struct FakeRegistrationView: View { @State private var login = "" @State private var password = "" @State private var repeatPassword = "" @State private var email = "" var navigateBack: () -> Void var body: some View { VStack(spacing: 16) { TextField("Login", text: $login) .textFieldStyle(.roundedBorder) .textContentType(.username) .disableAutocorrection(true) .autocapitalization(.none) .frame(maxWidth: 300) SecureField("Password", text: $password) .textFieldStyle(.roundedBorder) .textContentType(.newPassword) .disableAutocorrection(true) .autocapitalization(.none) .frame(maxWidth: 300) SecureField("Repeat password", text: $repeatPassword) .textFieldStyle(.roundedBorder) .textContentType(.newPassword) .disableAutocorrection(true) .autocapitalization(.none) .frame(maxWidth: 300) TextField("Email", text: $email) .textFieldStyle(.roundedBorder) .textContentType(.emailAddress) .disableAutocorrection(true) .autocapitalization(.none) .frame(maxWidth: 300) Button { Task { try? await Task.sleep(for: .seconds(2)) navigateBack() } } label: { Text("Submit") } .buttonStyle(.borderedProminent) } } }

When attempting to replicate the tvOS Settings menu layout, where the screen is divided horizontally into two sections, placing a NavigationStack or a Form view on either side of the screen causes focusable views (such as Button, TextField, Toggle, etc.) to be visually clipped when they receive focus and apply the default scaling animation. Specifically: If the Form or NavigationStack is placed on the right side, the left edge of the focused view gets clipped. If placed on the left side, the right edge of the focused view gets clipped. This issue affects any focusable child view inside the Form or NavigationStack when focus scaling is triggered. Example code: struct TVAppMenuMainView: View { var body: some View { VStack { Text("Settings Menu") .font(.title) HStack { VStack { Text("Left Pane") } .frame(width: UIScreen.main.bounds.width * 0.4) // represents only 40% of the screen .frame(maxHeight: .infinity) .padding(.bottom) Divider() NavigationStack { Form { // All the buttons will get cut on the left side when each button is focused Button("First Button"){} Button("Second Button"){} Button("Third Button"){} Button("Forth Button"){} } } } .frame(maxHeight: .infinity) .frame(maxWidth: .infinity) } .background(.ultraThickMaterial) } } How it looks: What I have tried: .clipped modifiers .ignoresSafeArea Modifying the size manually Using just a ScrollView with VStack works as intended, but as soon as NavigationStack or Form are added, the buttons get clipped. This was tested on the latest 18.5 tvOS BETA

Take a look at this simple code: import Cocoa import SwiftUI struct DemoView: View { var body: some View { Text("Click me!") .onTapGesture { print("Clicked") } } } class FlippedView: NSView { override var isFlipped: Bool { return true } } class ViewController: NSViewController { override func viewDidLoad() { super.viewDidLoad() let stackView = NSStackView() stackView.orientation = .vertical stackView.alignment = .leading stackView.spacing = 0 stackView.translatesAutoresizingMaskIntoConstraints = false let hostView = NSHostingView(rootView: DemoView()) stackView.addArrangedSubview(hostView) let scrollView = NSScrollView() scrollView.translatesAutoresizingMaskIntoConstraints = false let flippedView = FlippedView() flippedView.addSubview(stackView) scrollView.documentView = flippedView view.addSubview(scrollView) NSLayoutConstraint.activate([ scrollView.topAnchor.constraint(equalTo: view.topAnchor), scrollView.leadingAnchor.constraint(equalTo: view.leadingAnchor), scrollView.trailingAnchor.constraint(equalTo: view.trailingAnchor), scrollView.bottomAnchor.constraint(equalTo: view.bottomAnchor), ]) } } I need my scroll view to start at the very top, so i put it inside a flipped document view. But now .onTapGesture does not fire.

I'm unable to get live activity to show up in my app so I started to play with the demo app Emoji Rangers. The demo project initially only created a live activity in-app and then you're able to update it via the demo buttons. I added the following code to have it be able to start a live activity from the backend: func observePushToStartToken() { Task { for await data in Activity.pushToStartTokenUpdates { let token = data.map {String(format: "%02x", $0)}.joined() // Send token to the server print("got PUSHTOSTART TOKEN: (token)") } } } I get the token and then I use it to send this payload that should start the activity: { "aps":{ "timestamp":1743719911, "event":"start", "content-state":{ "currentHealthLevel":100, "eventDescription":"Adventure has begun!", "supercharged":true }, "input-push-token":1, "attributes-type":"AdventureAttributes", "attributes":{ "currentHealthLevel":100, "eventDescription":"Adventure has begun!", "supercharged":true }, "alert":{ "title":{ "loc-key":"%@ is on an adventure!", "loc-args":[ "Power Panda" ] }, "body":{ "loc-key":"%@ found a sword!", "loc-args":[ "Power Panda" ] }, "sound":"chime.aiff" } } } But unfortunately I get an error when I send it: [AdventureAttributes] Error creating activity: NSCocoaErrorDomain (4865) The data couldn't be read because it is missing. First step is to get this working, so I want to get your help in figuring out what I'm missing.

tl;dr can we use Label(application token) inside of a DeviceActivityReport? I’m working on an app that uses the DeviceActivityReport extension to show a user’s screen time breakdown. The app was working fine in a setup where my main app had the Distribution Family Controls capability and all the extensions had the Development Family Controls capability. However, this caused provisioning issues when I tried to create a test flight build. I then removed the development capabilities from the extensions, and now everything works fine except oddly the Labels in the DeviceActivityReport no longer show anything. They worked fine before, and the same label logic is working 100% fine inside my main app. Anyone encounter this before?

I am facing same issue with major crash while coming out from this function. Basically using collectionView.dequeReusableCell with size calculation. func getSizeOfFavouriteCell(_ collectionView: UICollectionView, at indexPath: IndexPath, item: FindCircleInfoCellItem) -> CGSize { guard let dummyCell = collectionView.dequeueReusableCell( withReuseIdentifier: TAButtonAddCollectionViewCell.reuseIdentifier, for: indexPath) as? TAButtonAddCollectionViewCell else { return CGSize.zero } dummyCell.title = item.title dummyCell.subtitle = item.subtitle dummyCell.icon = item.icon dummyCell.layoutIfNeeded() var targetSize = CGSize.zero if viewModel.favoritesDataSource.isEmpty.not, viewModel.favoritesDataSource.count > FindSheetViewControllerConstants.minimumFavoritesToDisplayInSection { targetSize = CGSize(width: collectionView.frame.size.width / 2, height: collectionView.frame.height) var estimatedSize: CGSize = dummyCell.systemLayoutSizeFitting(targetSize) if estimatedSize.width > targetSize.width { estimatedSize.width = targetSize.width } return CGSize(width: estimatedSize.width, height: targetSize.height) } } We have resolve issue with size calculation with checking nil. Working fine in xcode 15 and 16+. Note: Please help me with reason of crash? Is it because of xCode 16.2 onwards **strict check on UICollectionView **

Pasting either plain or styled text into any TextEditor results in a memory leak. import SwiftUI struct EditorView: View { @State private var inputText: String = "" var body: some View { VStack{ TextEditor(text: $inputText) .frame(minHeight: 150) } } }

One of our users reported a very strange bug where our app freezes and eventually crashes on some screen transitions. From different crash logs we could determine that the app freezes up when we call view.layoutIfNeeded() for animating constraint changes. It then gets killed by the watchdog 10 seconds later: Exception Type: EXC_CRASH (SIGKILL) Exception Codes: 0x0000000000000000, 0x0000000000000000 Termination Reason: FRONTBOARD 2343432205 <RBSTerminateContext| domain:10 code:0x8BADF00D explanation:scene-update watchdog transgression: app<bundleID(2A01F261-3554-44C0-B5A9-EBEB446484AD)>:6921 exhausted real (wall clock) time allowance of 10.00 seconds ProcessVisibility: Background ProcessState: Running WatchdogEvent: scene-update WatchdogVisibility: Background WatchdogCPUStatistics: ( "Elapsed total CPU time (seconds): 24.320 (user 18.860, system 5.460), 29% CPU", "Elapsed application CPU time (seconds): 10.630, 12% CPU" ) reportType:CrashLog maxTerminationResistance:Interactive> The crash stack trace looks slightly different, depending on the UI transition that is happening. Here are the two we observed so far. Both are triggered by the layoutIfNeeded() call. Thread 0 name: Dispatch queue: com.apple.main-thread Thread 0 Crashed: 0 CoreAutoLayout 0x1b09f90e4 -[NSISEngine valueForEngineVar:] + 8 1 UIKitCore 0x18f919478 -[_UIViewLayoutEngineRelativeAlignmentRectOriginCache origin] + 372 2 UIKitCore 0x18f918f18 -[UIView _nsis_center:bounds:inEngine:forLayoutGuide:] + 1372 3 UIKitCore 0x18f908e9c -[UIView(Geometry) _applyISEngineLayoutValuesToBoundsOnly:] + 248 4 UIKitCore 0x18f9089e0 -[UIView(Geometry) _resizeWithOldSuperviewSize:] + 148 5 CoreFoundation 0x18d0cd6a4 __NSARRAY_IS_CALLING_OUT_TO_A_BLOCK__ + 24 6 CoreFoundation 0x18d0cd584 -[__NSArrayM enumerateObjectsWithOptions:usingBlock:] + 432 7 UIKitCore 0x18f8e62b0 -[UIView(Geometry) resizeSubviewsWithOldSize:] + 128 8 UIKitCore 0x18f977194 -[UIView(AdditionalLayoutSupport) _is_layout] + 124 9 UIKitCore 0x18f976c2c -[UIView _updateConstraintsAsNecessaryAndApplyLayoutFromEngine] + 800 10 UIKitCore 0x18f903944 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 2728 11 QuartzCore 0x18ec15498 CA::Layer::layout_if_needed(CA::Transaction*) + 496 12 UIKitCore 0x18f940c10 -[UIView(Hierarchy) layoutBelowIfNeeded] + 312 Thread 0 name: Dispatch queue: com.apple.main-thread Thread 0 Crashed: 0 QuartzCore 0x18ec2cfe0 -[CALayer animationForKey:] + 176 1 UIKitCore 0x18fa5b258 UniqueAnimationKeyForLayer + 192 2 UIKitCore 0x18fa5ab7c __67-[_UIViewAdditiveAnimationAction runActionForKey:object:arguments:]_block_invoke_2 + 468 3 UIKitCore 0x18fa5ba5c -[_UIViewAdditiveAnimationAction runActionForKey:object:arguments:] + 1968 4 QuartzCore 0x18eb9e938 CA::Layer::set_bounds(CA::Rect const&, bool) + 428 5 QuartzCore 0x18eb9e760 -[CALayer setBounds:] + 132 6 UIKitCore 0x18f941770 -[UIView _backing_setBounds:] + 64 7 UIKitCore 0x18f940404 -[UIView(Geometry) setBounds:] + 340 8 UIKitCore 0x18f908f84 -[UIView(Geometry) _applyISEngineLayoutValuesToBoundsOnly:] + 480 9 UIKitCore 0x18f9089e0 -[UIView(Geometry) _resizeWithOldSuperviewSize:] + 148 10 CoreFoundation 0x18d0cd6a4 __NSARRAY_IS_CALLING_OUT_TO_A_BLOCK__ + 24 11 CoreFoundation 0x18d132488 -[__NSSingleObjectArrayI enumerateObjectsWithOptions:usingBlock:] + 92 12 UIKitCore 0x18f8e62b0 -[UIView(Geometry) resizeSubviewsWithOldSize:] + 128 13 UIKitCore 0x18f977194 -[UIView(AdditionalLayoutSupport) _is_layout] + 124 14 UIKitCore 0x18f976c2c -[UIView _updateConstraintsAsNecessaryAndApplyLayoutFromEngine] + 800 15 UIKitCore 0x18f916258 -[UIView(Hierarchy) layoutSubviews] + 204 16 UIKitCore 0x18f903814 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 2424 17 QuartzCore 0x18ec15498 CA::Layer::layout_if_needed(CA::Transaction*) + 496 18 UIKitCore 0x18f940c10 -[UIView(Hierarchy) layoutBelowIfNeeded] + 312 So far, we only know of one iPad Air M1 where this is happening. But we don't know how many users experience this issue without reporting it. Does anyone know what could cause Auto Layout or Core Animation to block in those calls? We have no clue so far...

为什么App 上传testFlight之后。无法通过NFC的方式唤醒 APP Clips。是必须要上架商店之后才能支持么？

Hi, I got a problem with severe hangs when I use code like this on tvOS 18.2 If I try to use HStack instead of LazyHStack inside the scrollview then the problem does not occur any more but then the scroll performance is compromised and the vertical scroll is no longer that smooth. Does someone has any experience with this? Is this SwiftUI problem or am I missing something? ScrollView { LazyVStack { ForEach(0...100, id: \.self) { _ in ScrollView { LazyHStack { ForEach(0...20, id: \.self) { _ in Color.red.frame(height: 300) } } } } } }

I am using SwiftUI to create an app and I have figured out how to present a scene for my preferences window. However I have yet to find a way to modify the "About "My App"" scene. I am not even sure how to ask the question on other forums because I keep getting informations on application menus. I would like to find information on accessing/changing other menu entries in the menubar (in SwiftUI) an most specifically I would like to find out how to present a custom window (or at least custom information) when the user selects "About "My App"" I guess I don't need a solution but a pointer to documentation that will help me in my quest.

My NFC tag for default app clip link (https://appclip.apple.com/id?p= xxxxxx) can work when I distribute to App Store. But NFC tag fail when I want to test in TestFlight. I already set the title and the url (the default app clip link such as https://appclip.apple.com/id?p= xxxxxx )in the TestFlight. Why did this happen?

After my XCode was upgraded to 16.2, the custom bottom tabbar of iPadAPP could not be displayed properly (I set "traitOverrides.horizontalSizeClass = .compact", otherwise the tabbar would be displayed at the top and it was not the style I wanted) Below are my code and pictures of the running effects of iOS17 and iOS18 override func viewDidLoad() { super.viewDidLoad() setValue(CustomTabBar(), forKey: "tabBar") if #available(iOS 18.0, *) { self.mode = .tabBar self.traitOverrides.horizontalSizeClass = .compact } } } class CustomTabBar: UITabBar { var leftView = UIView() var rightView = UIView() override func sizeThatFits(_ size: CGSize) -> CGSize { var sizeThatFits = super.sizeThatFits(size) sizeThatFits.height = 60 // 自定义高度 return sizeThatFits } override func layoutSubviews() { super.layoutSubviews() self.backgroundColor = .red addSubview(leftView) addSubview(rightView) leftView.backgroundColor = .green leftView.frame = CGRect(x: 10, y: 4, width: 80, height: 40) rightView.backgroundColor = .green rightView.frame = CGRect(x: 600, y: 4, width: 80, height: 40) } } ![]("https://developer.apple.com/forums/content/attachment/66988297-26dc-4b40-af37-103f6a277563" "title=20250409151648.jpg;width=2394;height=1716")

Seeing weird sequences of changes when locking the screen when view is visable. .onChange(of: scenePhase) { phase in if phase == .active { if UIApplication.shared.applicationState == .active { print("KDEBUG: App genuinely became active") } else { print("KDEBUG: False active signal detected") } } else if phase == .inactive { print("KDEBUG: App became inactive") // Handle inactive state if needed } else if phase == .background { print("KDEBUG: App went to background") // Handle background state if needed } } seen: (locks screen) KDEBUG: App became inactive KDEBUG: App genuinely became active KDEBUG: App went to background expected (locks screen) KDEBUG: App became inactive KDEBUG: App went to background

Hi everyone! I am having a bit of trouble with why my Map() is overwriting my customized tabBar settings. Specifically my tab bar background. (White -> Black) Map(position: $cameraPosition) { UserAnnotation() } .toolbarBackground(.hidden, for: .tabBar) This above ^ is a view which acts as a tab view for my tab bar. I have customized my tab bar as follows just so it was obvious to see me changes. let tabAppearance = UITabBarAppearance() tabAppearance.configureWithOpaqueBackground() tabAppearance.backgroundColor = .white UITabBar.appearance().standardAppearance = tabAppearance UITabBar.appearance().scrollEdgeAppearance = tabAppearance I have tried implementing solutions which is seen with my .toolbar attempt but nothing has help. I would like the tab bar to be consistent with all of my views and from my understanding the Map is overwriting those settings.

We've seen a spike in crashes on iOS 18.4 across both iPhone & iPad. We can't reproduce it, but it looks like it happens when the app goes into the background. Crash Log

I have a situation where I need to add a UINavigationController as a child view controller within another view controller. When I do this, there is a gap between the bottom of the navigation controller's root view controller and the bottom of the navigation controller's own view. This happens even though I am constraining the navigation controller's view to the edges of its superview, not the safe areas. I'd really like to eliminate this gap, but nothing I have tried is working.

When I toggle a panel like navigationsidebar, I get a message in the console. I guess it's not a big issue, but is there a way to fix this message? because it appears in every project. Unable to open mach-O at path: /AppleInternal/Library/BuildRoots/d187757d-b9a3-11ef-83e5-aabfac210453/Library/Caches/com.apple.xbs/Binaries/RenderBox/install/TempContent/Root/System/Library/PrivateFrameworks/RenderBox.framework/Versions/A/Resources/default.metallib Error:2