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iOS 18.4 (?) FamilyActivityPicker regression: presenting SFSafariViewController on top bugs
If I present "SFSafariViewController" when a "FamilyActivityPicker" is visible, it will automatically dismiss the "SFSafariViewController" and crash the "FamilyActivityPicker." I'm assuming the cause of the bug is that each is in a separate process (aside from the app), and there's some hacks to try to stop "FamilyActivityPicker" from crashing, and this is causing the new bug because "SFSafariViewController" is also in a separate process. (I'm not 100% if its just in 18.4 or iOS 18 overall...) (I'll try to file a feedback soon, but its 100% reproducible for me across multiple devices on iOS 18.4)
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0
302
Apr ’25
List rows partially obscured by navigation bar briefly render fully opaque when switching tabs (iOS 26)
Overview In iOS 26, a List embedded in a NavigationStack inside a TabView exhibits a visual glitch when switching tabs. When the list is scrolled such that some rows are partially obscured by the navigation bar, the system correctly applies a fade/opacity effect to those rows. However, if the user switches to another tab while rows are in this partially obscured (faded) state, those rows briefly flash at full opacity during the tab transition before disappearing. This flash is visually distracting and appears to be inconsistent with the intended scroll-edge opacity behavior. The issue occurs only for rows partially obscured by the navigation bar. Rows partially obscured by the tab bar do not exhibit this flashing behavior. Steps to Reproduce: Run the attached minimal reproduction on iOS 26. Open the first tab. Scroll the list so that some rows are partially hidden behind the navigation bar (showing the native faded appearance). While rows are in this partially faded state, switch to the second tab. Observe that the faded rows briefly render fully opaque during the tab switch. Expected Behavior: Rows that are partially obscured by the navigation bar should maintain consistent opacity behavior during tab transitions, without flashing to full opacity. import SwiftUI @main struct NavBarReproApp: App { /// Minimal repro for iOS 26: /// - TabView with two tabs /// - First tab: NavigationStack + List /// - Scroll so some rows are partially behind the nav bar (faded) /// - Switch tabs: those partially-faded rows briefly flash fully opaque. Partially faded rows under the tab bar do not flash private let items = Array(0..<200).map { "Row \($0)" } var body: some Scene { WindowGroup { TabView { NavigationStack { List { ForEach(items, id: \.self) { item in Text(item) } } .navigationTitle("One") .navigationBarTitleDisplayMode(.inline) } .tabItem { Label("One", systemImage: "1.circle") } NavigationStack { Text("Second tab") .navigationTitle("Two") .navigationBarTitleDisplayMode(.inline) } .tabItem { Label("Two", systemImage: "2.circle") } } } } }
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190
Jan ’26
NavigationSplitView not fully supported on smaller (SE) iPhones
My SwiftUI code runs fine on macOS, iOS(iPad) and larger iPhones, but will not display the detail view on smaller iPhones. Is there a way to force the smaller iPhones to display the detail view? And if not, When I put the App on the Apple store, for sale, will the Apple store be smart enough to flag the App as not appropriate for smaller iPhones, such as the SE (2nd and 3rd gen.) and prevent downloads? Thanks in advance for any guidance.
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1.2k
Jul ’25
How to animate `UIHostingController.view` frame when my View's size changes?
I have a UIHostingController on which I have set: hostingController.sizingOptions = [.intrinsicContentSize] The size of my SwiftUI content changes with animation (I update a @Published property on an ObservableObject inside a withAnimation block). However, I notice that my hostingController.view just jumps to the new frame without animating the change. Question: how can I animate the frame changes in UIHostingController that are caused by sizingOptions = [.intrinsicContentSize]
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319
Feb ’26
How to get the frame or insets of the new iPadOS 26 window control buttons (close, minimize, fullscreen)?
In iPadOS 26, Apple introduced macOS-style window control buttons (close, minimize, fullscreen) for iPad apps running in a floating window. I'm working on a custom toolbar (UIView) positioned near the top of the window, and I'd like to avoid overlapping with these new controls. However, I haven't found any public API that exposes the frame, layout margins, or safe area insets related to this new UI region. I've checked the window's safeAreaInsets, additionalSafeAreaInsets, and UIWindowSceneDelegate APIs, but none of them seem to reflect the area occupied by these buttons. Is there an officially supported way to: Get the layout information (frame, insets, or margins) of the window control buttons on iPadOS 26? Or, is there a system-defined guideline or padding value we should use to avoid overlapping this new UI? Any clarification or guidance would be appreciated!
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673
Aug ’25
.contactAccessPicker shows blank sheet on iOS 26.2.1 on device
Calling contactAccessPicker results in a blank sheet and a jetsam error, rather than the expected contact picker, using Apple’s sample code, only on device with iOS 26.2.1. This is happening on a iPhone 17 Pro Max running 26.2.1, and not on a simulator. I’m running Apple's sample project Accessing a person’s contact data using Contacts and ContactsUI Steps: Run the sample app on device running iOS 26.2.1. Use the flow to authorize .limited access with 1 contact: Tap request access, Continue, Select Contacts. Select a contact, Continue, Allow Selected Contact. This all works as expected. Tap the add contact button in the toolbar to add a second contact. Expected: This should show the Contact Access Picker UI. Actual: Sheet is shown with no contents. See screenshot of actual results on iOS device running 26.2.1. Reported as FB21812568 I see a similar (same?) error reported for 26.1. It seems strange that the feature is completely broken for multiple point releases. Is anyone else seeing this or are the two of us running into the same rare edge case? Expected Outcome, seen on simulator running 26.2 Actual outcome, seen on device running 26.2.1
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2
327
2w
touchesEnded: not triggered on newer iOS when view is inside UIScrollView (was working on iOS 18)
Hi everyone, I’m facing an issue with touch handling on newer iOS versions. I have a custom view controller implemented in Objective-C that overrides touchesEnded:. The same code works correctly on iOS 18, but on newer iOS versions (tested on iOS 26), touchesEnded: is no longer being triggered. Important observations: touchesBegan: is triggered. touchesEnded: is NOT triggered. touchesCancelled: is also NOT triggered. No code changes were made between iOS 18 and iOS 26. Same code, same sample works fine in iOS18 device but not in iOS26 device Questions: Has gesture arbitration behavior changed in recent iOS 26 versions when views are inside UIScrollView? Any clarification on whether this is intended behavior or a regression would be greatly appreciated. Thank you.
Topic: UI Frameworks SubTopic: UIKit
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310
3w
On iPadOS 26 beta, the navigation bar can appear inset underneath the status bar (FB18241928)
On iPadOS 26 beta, the navigation bar can appear inset underneath the status bar (FB18241928) This bug does not happen on iOS 18. This bug occurs when a full screen modal view controller without a status bar is presented, the device orientation changes, and then the full screen modal view controller is dismissed. This bug appears to happen only on iPad, and not on iPhone. This bug happens both in the simulator and on the device. Thank you for investigating this issue.
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536
Aug ’25
SwiftUI @State Updates Not Reflecting in UI Until View Reconstruction (Xcode Preview & Device)
Issue Description I'm experiencing a bizarre SwiftUI state update issue that only occurs in Xcode development environment (both Canvas preview and device debugging), but does not occur in production builds downloaded from App Store. Symptom: User taps a button that modifies a @State variable inside a .sheet Console logs confirm the state HAS changed But the UI does not update to reflect the new state Switching to another file in Xcode and back to ContentView instantly fixes the issue The production build (same code) works perfectly fine Environment Xcode: 16F6 (17C52) iOS: 26.2 (testing on iPhone 13) macOS: 25.1.0 (Sequoia) SwiftUI Target: iOS 15.6+ Issue: Present in both Xcode Canvas and on-device debugging Production: Same code works correctly in App Store build (version 1.3.2) Code Structure Parent View (ContentView.swift) struct ContentView: View { @State private var selectedSound: SoundTheme = .none @State private var showSoundSheet = false var body: some View { VStack { // Display button shows current selection SettingButton( title: "Background Sound", value: getLocalizedSoundName(selectedSound) // ← Not updating ) { showSoundSheet = true } } .sheet(isPresented: $showSoundSheet) { soundSelectionView } } private var soundSelectionView: some View { ForEach(SoundTheme.allCases) { sound in Button { selectedSound = sound // ← State DOES change (confirmed in console) // Audio starts playing correctly audioManager.startAmbientSound(sound) } label: { Text(sound.name) } } } private func getLocalizedSoundName(_ sound: SoundTheme) -> String { // Returns localized name return sound.localizedName }} What I've Tried Attempt 1: Adding .id() modifier SettingButton(...) .id(selectedSound) // Force re-render when state changes Result: No effect Attempt 2: Moving state modification outside withAnimation // Before (had animation wrapper):withAnimation { selectedSound = sound}// After (removed animation):selectedSound = sound Result: No effect Attempt 3: Adding debug print() statements selectedSound = soundprint("State changed: (selectedSound)") // ← Adding this line FIXES the issue! Result: Mysteriously fixes the issue! But removing print() breaks it again. This suggests a timing/synchronization issue in Xcode's preview system. Observations What works: ✅ Console logs confirm state changes correctly ✅ Switching files in Xcode triggers view reconstruction → everything works ✅ Production build from App Store works perfectly ✅ Adding print() statements "fixes" it (likely changes execution timing) What doesn't work: ❌ Initial file load in Xcode ❌ Hot reload / incremental updates ❌ Both Canvas preview and on-device debugging Workaround that works: Click another file in Xcode Click back to ContentView.swift Everything works normally Key Question Is this a known issue with Xcode 16's SwiftUI preview/hot reload system? The fact that: Same exact code works in production Adding print() "fixes" it File switching triggers reconstruction that fixes it ...all suggest this is an Xcode tooling issue, not a code bug. However, it makes development extremely difficult as I can't reliably test changes without constantly switching files or killing the app. What I'm Looking For Confirmation: Is this a known Xcode 16 issue? Workaround: Any better solution than constantly switching files? Root cause: What's causing this state update timing issue? Any insights would be greatly appreciated!
Topic: UI Frameworks SubTopic: SwiftUI
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359
Dec ’25
Force NSDocument save panel to select most specific type in format popup button
My app supports different plain text file formats, including the standard .txt and Markdown. When creating a new document, my app already asks which format it should have, so when saving it, I would expect that the save panel already selects that format in the popup button, but currently it always selects "Plain Text". For example, I would expect for a Markdown document that it selects "Markdown" instead of "Plain Text". Is there a way to force it to select the most specific format matching the document format?
Topic: UI Frameworks SubTopic: AppKit Tags:
6
1
173
Jul ’25
Wrong appearance of decimalPad keyboard in dark mode
Hi. The following code causes UI mismatch on iOS26. Keyboard with type decimalPad and appearance as dark is displayed as popUp with wrong colors. Before iOS26 keyboard was regular with correct color scheme. Please advice either how to make the scheme correct or force to display regular keyboard instead of popup. class ViewController: UIViewController { @IBOutlet weak var textField: UITextField! override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view. textField.keyboardType = .decimalPad textField.keyboardAppearance = .dark view.backgroundColor = .darkGray } }
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2w
Change tint of back button in UINavigationItem on iOS 26
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?
Topic: UI Frameworks SubTopic: UIKit Tags:
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507
Jan ’26
Screenshot preventing
I’d like to know if Apple currently supports any public API or entitlement for blocking in-app screenshots on iOS. If no such API exists, what is the officially recommended approach for App Store apps to prevent or react to screenshots of sensitive content in a banking app? I have tried using a hidden UITextField with isSecureTextEntry = true and observing UIApplication.userDidTakeScreenshotNotification, but these methods do not block the initial screenshot. Could you please advise how to block screenshots in my app?
Topic: UI Frameworks SubTopic: UIKit
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173
Jun ’25
.contactAccessPicker shows blank sheet on iOS 26.1
I’m running into an issue using .contactAccessPicker on a device running iOS 26.1 - a blank sheet appears instead of the expected Contact Access Picker. It works on: Simulator (iOS 26.0) Device + Simulator (iOS 18.6) The issue appears specific to real devices on iOS 26.0+. Environment: Device: iPhone 16 Pro iOS Versions Tested: 26.0 and 26.1 Xcode 26.0.1 SwiftUI app, deployment target: iOS 17+ @available(iOS 18.0, *) private var contactPicker: some View { contactsSettingsButton("Title") { showContactPicker = true } .contactAccessPicker(isPresented: $showContactPicker) { _ in Task { await contactManager.fetchContacts() showSelectContacts = true } } } Filed a Feedback: FB20929400 Is there a known workaround?
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2w
tabViewBottomAccessory in 26.1: View's @State is lost when switching tabs
Any view that is content for the tabViewBottomAccessory API fails to retain its state as of the last couple of 26.1 betas (and RC). The loss of state happens (at least) when the currently selected tab is switched (filed as FB20901325). Here's code to reproduce the issue: struct ContentView: View { @State private var selectedTab = TabSelection.one enum TabSelection: Hashable { case one, two } var body: some View { TabView(selection: $selectedTab) { Tab("One", systemImage: "1.circle", value: .one) { BugExplanationView() } Tab("Two", systemImage: "2.circle", value: .two) { BugExplanationView() } } .tabViewBottomAccessory { AccessoryView() } } } struct AccessoryView: View { @State private var counter = 0 // This guy's state gets lost (as of iOS 26.1) var body: some View { Stepper("Counter: \(counter)", value: $counter) .padding(.horizontal) } } struct BugExplanationView: View { var body: some View { ScrollView { VStack(alignment: .leading, spacing: 16) { Text("(1) Manipulate the counter state") Text("(2) Then switch tabs") Text("BUG: The counter state gets unexpectedly reset!") } .multilineTextAlignment(.leading) } } }
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631
Feb ’26
UIDocumentPickerViewController does not allow picking folders on connected servers on iOS26
Hey there, I have an app that allows picking any folder via UIDocumentPickerViewController. Up until iOS18 users were able to pick folders from connected servers (servers connected in the Files app) as well. On iOS26, the picker allows for browsing into the connected servers, but the Select button is greyed out and does nothing when tapped. Is this a known issue? This breaks the whole premise of my file syncronization application.
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273
Nov ’25
Preview crashes when using ForEach with a Binding to an array and generics
The following repro case results in a previews crash on Xcode 26 beta 3 (report attached). FB18762054 import SwiftUI final class MyItem: Identifiable, Labelled { var label: String init(_ label: String) { self.label = label } } protocol Labelled { var label: String { get } } struct HelloView: View { let label: String var body: some View { Text(label) } } struct ListView<Element: Labelled & Identifiable>: View { @Binding var elements: [Element] var body: some View { List { ForEach($elements, id: \.id) { $element in HelloView(label: element.label) // crash // Replacing the above with a predefined view works correctly // Text(element.label) } } } } struct ForEachBindingRepro: View { @State var elements: [MyItem] = [ MyItem("hello"), MyItem("world"), ] var body: some View { ListView(elements: $elements) } } #Preview("ForEachBindingRepro") { ForEachBindingRepro() } foreachbindingrepro-2025-07-12-020628.ips
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Jul ’25
iOS 18.4 (?) FamilyActivityPicker regression: presenting SFSafariViewController on top bugs
If I present "SFSafariViewController" when a "FamilyActivityPicker" is visible, it will automatically dismiss the "SFSafariViewController" and crash the "FamilyActivityPicker." I'm assuming the cause of the bug is that each is in a separate process (aside from the app), and there's some hacks to try to stop "FamilyActivityPicker" from crashing, and this is causing the new bug because "SFSafariViewController" is also in a separate process. (I'm not 100% if its just in 18.4 or iOS 18 overall...) (I'll try to file a feedback soon, but its 100% reproducible for me across multiple devices on iOS 18.4)
Replies
6
Boosts
0
Views
302
Activity
Apr ’25
List rows partially obscured by navigation bar briefly render fully opaque when switching tabs (iOS 26)
Overview In iOS 26, a List embedded in a NavigationStack inside a TabView exhibits a visual glitch when switching tabs. When the list is scrolled such that some rows are partially obscured by the navigation bar, the system correctly applies a fade/opacity effect to those rows. However, if the user switches to another tab while rows are in this partially obscured (faded) state, those rows briefly flash at full opacity during the tab transition before disappearing. This flash is visually distracting and appears to be inconsistent with the intended scroll-edge opacity behavior. The issue occurs only for rows partially obscured by the navigation bar. Rows partially obscured by the tab bar do not exhibit this flashing behavior. Steps to Reproduce: Run the attached minimal reproduction on iOS 26. Open the first tab. Scroll the list so that some rows are partially hidden behind the navigation bar (showing the native faded appearance). While rows are in this partially faded state, switch to the second tab. Observe that the faded rows briefly render fully opaque during the tab switch. Expected Behavior: Rows that are partially obscured by the navigation bar should maintain consistent opacity behavior during tab transitions, without flashing to full opacity. import SwiftUI @main struct NavBarReproApp: App { /// Minimal repro for iOS 26: /// - TabView with two tabs /// - First tab: NavigationStack + List /// - Scroll so some rows are partially behind the nav bar (faded) /// - Switch tabs: those partially-faded rows briefly flash fully opaque. Partially faded rows under the tab bar do not flash private let items = Array(0..<200).map { "Row \($0)" } var body: some Scene { WindowGroup { TabView { NavigationStack { List { ForEach(items, id: \.self) { item in Text(item) } } .navigationTitle("One") .navigationBarTitleDisplayMode(.inline) } .tabItem { Label("One", systemImage: "1.circle") } NavigationStack { Text("Second tab") .navigationTitle("Two") .navigationBarTitleDisplayMode(.inline) } .tabItem { Label("Two", systemImage: "2.circle") } } } } }
Replies
6
Boosts
0
Views
190
Activity
Jan ’26
NavigationSplitView not fully supported on smaller (SE) iPhones
My SwiftUI code runs fine on macOS, iOS(iPad) and larger iPhones, but will not display the detail view on smaller iPhones. Is there a way to force the smaller iPhones to display the detail view? And if not, When I put the App on the Apple store, for sale, will the Apple store be smart enough to flag the App as not appropriate for smaller iPhones, such as the SE (2nd and 3rd gen.) and prevent downloads? Thanks in advance for any guidance.
Replies
6
Boosts
0
Views
1.2k
Activity
Jul ’25
How to animate `UIHostingController.view` frame when my View's size changes?
I have a UIHostingController on which I have set: hostingController.sizingOptions = [.intrinsicContentSize] The size of my SwiftUI content changes with animation (I update a @Published property on an ObservableObject inside a withAnimation block). However, I notice that my hostingController.view just jumps to the new frame without animating the change. Question: how can I animate the frame changes in UIHostingController that are caused by sizingOptions = [.intrinsicContentSize]
Replies
6
Boosts
1
Views
319
Activity
Feb ’26
How to get the frame or insets of the new iPadOS 26 window control buttons (close, minimize, fullscreen)?
In iPadOS 26, Apple introduced macOS-style window control buttons (close, minimize, fullscreen) for iPad apps running in a floating window. I'm working on a custom toolbar (UIView) positioned near the top of the window, and I'd like to avoid overlapping with these new controls. However, I haven't found any public API that exposes the frame, layout margins, or safe area insets related to this new UI region. I've checked the window's safeAreaInsets, additionalSafeAreaInsets, and UIWindowSceneDelegate APIs, but none of them seem to reflect the area occupied by these buttons. Is there an officially supported way to: Get the layout information (frame, insets, or margins) of the window control buttons on iPadOS 26? Or, is there a system-defined guideline or padding value we should use to avoid overlapping this new UI? Any clarification or guidance would be appreciated!
Replies
6
Boosts
1
Views
673
Activity
Aug ’25
.contactAccessPicker shows blank sheet on iOS 26.2.1 on device
Calling contactAccessPicker results in a blank sheet and a jetsam error, rather than the expected contact picker, using Apple’s sample code, only on device with iOS 26.2.1. This is happening on a iPhone 17 Pro Max running 26.2.1, and not on a simulator. I’m running Apple's sample project Accessing a person’s contact data using Contacts and ContactsUI Steps: Run the sample app on device running iOS 26.2.1. Use the flow to authorize .limited access with 1 contact: Tap request access, Continue, Select Contacts. Select a contact, Continue, Allow Selected Contact. This all works as expected. Tap the add contact button in the toolbar to add a second contact. Expected: This should show the Contact Access Picker UI. Actual: Sheet is shown with no contents. See screenshot of actual results on iOS device running 26.2.1. Reported as FB21812568 I see a similar (same?) error reported for 26.1. It seems strange that the feature is completely broken for multiple point releases. Is anyone else seeing this or are the two of us running into the same rare edge case? Expected Outcome, seen on simulator running 26.2 Actual outcome, seen on device running 26.2.1
Replies
6
Boosts
2
Views
327
Activity
2w
Myanmar Language font changed after iOS 18.4
I am developing iOS App using SwiftUI and I notice that Myanmar font of number text on 18.4 have clipped on top and bottom. Does anyone have this issues and know the fix? I have provided the Screenshot also.
Replies
6
Boosts
0
Views
258
Activity
Apr ’25
How does one know the fitting width of a UIDatePicker in a function hooked up with UIControlEventValueChanged
How does one know the fitting width of a UIDatePicker in a selector hooked up with UIControlEventValueChanged? By fitting width, I mean the width of the grey background rounded box displayed with the date -- I need to get the width of that whenever the date is changed.
Replies
6
Boosts
0
Views
278
Activity
Sep ’25
touchesEnded: not triggered on newer iOS when view is inside UIScrollView (was working on iOS 18)
Hi everyone, I’m facing an issue with touch handling on newer iOS versions. I have a custom view controller implemented in Objective-C that overrides touchesEnded:. The same code works correctly on iOS 18, but on newer iOS versions (tested on iOS 26), touchesEnded: is no longer being triggered. Important observations: touchesBegan: is triggered. touchesEnded: is NOT triggered. touchesCancelled: is also NOT triggered. No code changes were made between iOS 18 and iOS 26. Same code, same sample works fine in iOS18 device but not in iOS26 device Questions: Has gesture arbitration behavior changed in recent iOS 26 versions when views are inside UIScrollView? Any clarification on whether this is intended behavior or a regression would be greatly appreciated. Thank you.
Topic: UI Frameworks SubTopic: UIKit
Replies
6
Boosts
0
Views
310
Activity
3w
On iPadOS 26 beta, the navigation bar can appear inset underneath the status bar (FB18241928)
On iPadOS 26 beta, the navigation bar can appear inset underneath the status bar (FB18241928) This bug does not happen on iOS 18. This bug occurs when a full screen modal view controller without a status bar is presented, the device orientation changes, and then the full screen modal view controller is dismissed. This bug appears to happen only on iPad, and not on iPhone. This bug happens both in the simulator and on the device. Thank you for investigating this issue.
Replies
6
Boosts
0
Views
536
Activity
Aug ’25
SwiftUI @State Updates Not Reflecting in UI Until View Reconstruction (Xcode Preview & Device)
Issue Description I'm experiencing a bizarre SwiftUI state update issue that only occurs in Xcode development environment (both Canvas preview and device debugging), but does not occur in production builds downloaded from App Store. Symptom: User taps a button that modifies a @State variable inside a .sheet Console logs confirm the state HAS changed But the UI does not update to reflect the new state Switching to another file in Xcode and back to ContentView instantly fixes the issue The production build (same code) works perfectly fine Environment Xcode: 16F6 (17C52) iOS: 26.2 (testing on iPhone 13) macOS: 25.1.0 (Sequoia) SwiftUI Target: iOS 15.6+ Issue: Present in both Xcode Canvas and on-device debugging Production: Same code works correctly in App Store build (version 1.3.2) Code Structure Parent View (ContentView.swift) struct ContentView: View { @State private var selectedSound: SoundTheme = .none @State private var showSoundSheet = false var body: some View { VStack { // Display button shows current selection SettingButton( title: "Background Sound", value: getLocalizedSoundName(selectedSound) // ← Not updating ) { showSoundSheet = true } } .sheet(isPresented: $showSoundSheet) { soundSelectionView } } private var soundSelectionView: some View { ForEach(SoundTheme.allCases) { sound in Button { selectedSound = sound // ← State DOES change (confirmed in console) // Audio starts playing correctly audioManager.startAmbientSound(sound) } label: { Text(sound.name) } } } private func getLocalizedSoundName(_ sound: SoundTheme) -> String { // Returns localized name return sound.localizedName }} What I've Tried Attempt 1: Adding .id() modifier SettingButton(...) .id(selectedSound) // Force re-render when state changes Result: No effect Attempt 2: Moving state modification outside withAnimation // Before (had animation wrapper):withAnimation { selectedSound = sound}// After (removed animation):selectedSound = sound Result: No effect Attempt 3: Adding debug print() statements selectedSound = soundprint("State changed: (selectedSound)") // ← Adding this line FIXES the issue! Result: Mysteriously fixes the issue! But removing print() breaks it again. This suggests a timing/synchronization issue in Xcode's preview system. Observations What works: ✅ Console logs confirm state changes correctly ✅ Switching files in Xcode triggers view reconstruction → everything works ✅ Production build from App Store works perfectly ✅ Adding print() statements "fixes" it (likely changes execution timing) What doesn't work: ❌ Initial file load in Xcode ❌ Hot reload / incremental updates ❌ Both Canvas preview and on-device debugging Workaround that works: Click another file in Xcode Click back to ContentView.swift Everything works normally Key Question Is this a known issue with Xcode 16's SwiftUI preview/hot reload system? The fact that: Same exact code works in production Adding print() "fixes" it File switching triggers reconstruction that fixes it ...all suggest this is an Xcode tooling issue, not a code bug. However, it makes development extremely difficult as I can't reliably test changes without constantly switching files or killing the app. What I'm Looking For Confirmation: Is this a known Xcode 16 issue? Workaround: Any better solution than constantly switching files? Root cause: What's causing this state update timing issue? Any insights would be greatly appreciated!
Topic: UI Frameworks SubTopic: SwiftUI
Replies
6
Boosts
0
Views
359
Activity
Dec ’25
Force NSDocument save panel to select most specific type in format popup button
My app supports different plain text file formats, including the standard .txt and Markdown. When creating a new document, my app already asks which format it should have, so when saving it, I would expect that the save panel already selects that format in the popup button, but currently it always selects "Plain Text". For example, I would expect for a Markdown document that it selects "Markdown" instead of "Plain Text". Is there a way to force it to select the most specific format matching the document format?
Topic: UI Frameworks SubTopic: AppKit Tags:
Replies
6
Boosts
1
Views
173
Activity
Jul ’25
Wrong appearance of decimalPad keyboard in dark mode
Hi. The following code causes UI mismatch on iOS26. Keyboard with type decimalPad and appearance as dark is displayed as popUp with wrong colors. Before iOS26 keyboard was regular with correct color scheme. Please advice either how to make the scheme correct or force to display regular keyboard instead of popup. class ViewController: UIViewController { @IBOutlet weak var textField: UITextField! override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view. textField.keyboardType = .decimalPad textField.keyboardAppearance = .dark view.backgroundColor = .darkGray } }
Replies
6
Boosts
1
Views
341
Activity
2w
Change tint of back button in UINavigationItem on iOS 26
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?
Topic: UI Frameworks SubTopic: UIKit Tags:
Replies
6
Boosts
1
Views
507
Activity
Jan ’26
Opting-out of window resizing in iPadOS 26
I have a game app for iOS and iPadOS, which expects a full screen experience. I'd like to out of window resizing in iPadOS 26 as it negatively impacts the UI/UX of the app. I have UIRequiresFullScreen defined, but it doesn't seem to actually force full screen on iPadOS 26 anymore.
Replies
6
Boosts
1
Views
787
Activity
Jul ’25
Screenshot preventing
I’d like to know if Apple currently supports any public API or entitlement for blocking in-app screenshots on iOS. If no such API exists, what is the officially recommended approach for App Store apps to prevent or react to screenshots of sensitive content in a banking app? I have tried using a hidden UITextField with isSecureTextEntry = true and observing UIApplication.userDidTakeScreenshotNotification, but these methods do not block the initial screenshot. Could you please advise how to block screenshots in my app?
Topic: UI Frameworks SubTopic: UIKit
Replies
6
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0
Views
173
Activity
Jun ’25
.contactAccessPicker shows blank sheet on iOS 26.1
I’m running into an issue using .contactAccessPicker on a device running iOS 26.1 - a blank sheet appears instead of the expected Contact Access Picker. It works on: Simulator (iOS 26.0) Device + Simulator (iOS 18.6) The issue appears specific to real devices on iOS 26.0+. Environment: Device: iPhone 16 Pro iOS Versions Tested: 26.0 and 26.1 Xcode 26.0.1 SwiftUI app, deployment target: iOS 17+ @available(iOS 18.0, *) private var contactPicker: some View { contactsSettingsButton("Title") { showContactPicker = true } .contactAccessPicker(isPresented: $showContactPicker) { _ in Task { await contactManager.fetchContacts() showSelectContacts = true } } } Filed a Feedback: FB20929400 Is there a known workaround?
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6
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3
Views
322
Activity
2w
tabViewBottomAccessory in 26.1: View's @State is lost when switching tabs
Any view that is content for the tabViewBottomAccessory API fails to retain its state as of the last couple of 26.1 betas (and RC). The loss of state happens (at least) when the currently selected tab is switched (filed as FB20901325). Here's code to reproduce the issue: struct ContentView: View { @State private var selectedTab = TabSelection.one enum TabSelection: Hashable { case one, two } var body: some View { TabView(selection: $selectedTab) { Tab("One", systemImage: "1.circle", value: .one) { BugExplanationView() } Tab("Two", systemImage: "2.circle", value: .two) { BugExplanationView() } } .tabViewBottomAccessory { AccessoryView() } } } struct AccessoryView: View { @State private var counter = 0 // This guy's state gets lost (as of iOS 26.1) var body: some View { Stepper("Counter: \(counter)", value: $counter) .padding(.horizontal) } } struct BugExplanationView: View { var body: some View { ScrollView { VStack(alignment: .leading, spacing: 16) { Text("(1) Manipulate the counter state") Text("(2) Then switch tabs") Text("BUG: The counter state gets unexpectedly reset!") } .multilineTextAlignment(.leading) } } }
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6
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4
Views
631
Activity
Feb ’26
UIDocumentPickerViewController does not allow picking folders on connected servers on iOS26
Hey there, I have an app that allows picking any folder via UIDocumentPickerViewController. Up until iOS18 users were able to pick folders from connected servers (servers connected in the Files app) as well. On iOS26, the picker allows for browsing into the connected servers, but the Select button is greyed out and does nothing when tapped. Is this a known issue? This breaks the whole premise of my file syncronization application.
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6
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0
Views
273
Activity
Nov ’25
Preview crashes when using ForEach with a Binding to an array and generics
The following repro case results in a previews crash on Xcode 26 beta 3 (report attached). FB18762054 import SwiftUI final class MyItem: Identifiable, Labelled { var label: String init(_ label: String) { self.label = label } } protocol Labelled { var label: String { get } } struct HelloView: View { let label: String var body: some View { Text(label) } } struct ListView<Element: Labelled & Identifiable>: View { @Binding var elements: [Element] var body: some View { List { ForEach($elements, id: \.id) { $element in HelloView(label: element.label) // crash // Replacing the above with a predefined view works correctly // Text(element.label) } } } } struct ForEachBindingRepro: View { @State var elements: [MyItem] = [ MyItem("hello"), MyItem("world"), ] var body: some View { ListView(elements: $elements) } } #Preview("ForEachBindingRepro") { ForEachBindingRepro() } foreachbindingrepro-2025-07-12-020628.ips
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6
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0
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312
Activity
Jul ’25