Overview

Suppose you have a view: struct Library: View { @State var books = [] var body: some View { VStack { ... Button("add Book") { .... } } } Such that Library view holds a Book array that gets populated internally via a button that opens a modal – or something alike. How can I use #Peviews to preview Library with a pre-populated collection? Suppose I have a static books – dummy – array in my code just for that; still, what's the best way to use that to preview the Library view?

A few days ago I installed beta 1 of macOS 26 Tahoe on a spare MacBook Pro 14-inch M4. Everything went well, and it looks okay (well, I don't like it at all, but hey-ho), and I shut it down. I started it up today, and it rejects my login password every time, then locks my account. When I click the link to "Restart and show password reset options" I'm asked for my Apple ID details, so I enter the correct email and password, then the MBP reboots and I'm back on the login screen with no indication that anything has changed. Guess I'm stuck now... FB18364657

I am using the sample app from: https://developer.apple.com/videos/play/wwdc2025/277/?time=763 I installed this on an Iphone 15 Pro with iOS 26 beta 1. I was able to get good transcription with it. The app did crash sometimes when transcribing and I was going to post here with the details. I then installed iOS beta 2 and uninstalled the sample app. Now every time I try to run the sample app on the 15 Pro I get this message: SpeechAnalyzer: Input loop ending with error: Error Domain=SFSpeechErrorDomain Code=10 "Cannot use modules with unallocated locales [en_US (fixed en_US)]" UserInfo={NSLocalizedDescription=Cannot use modules with unallocated locales [en_US (fixed en_US)]} I can't continue our our work towards using SpeechAnalyzer now with this error. I have set breakpoints on all the catch handlers and it doesn't catch this error. My phone region is "United States"

Verbatim of a feedback report (FB18431713) I submitted, duplicated here since we can't see each other's feedbacks, and I wanted a centralized place to track the resolution of this as I'm surely not the only one facing this. When building the app using Xcode 26 beta 2 and running it in an iOS 26 simulator, I'm experiencing a retain cycle in the UINavigationController. From the data I saw in Xcode's memory graph debugger, it seems that _UIViewControllerOneToOneTransitionContext is retaining it. I base this on the fact that the line connecting a view controller and _UIViewControllerOneToOneTransitionContext has a "strong" reference, as indicated in Xcode. (However, I'm reporting this as a retain cycle in UINavigationController, as that's what seems to hold onto this transition-context.)

Hey, We also opened a feedback assistant request, and also opened a ticket with Apple Developer Technical Support a while ago that notice the unmount problem also but it was before we pin point the problem to the Network Extension. After a further investigation, we've found out that the root cause of this problem is cause by having a network filter from the NetworkExtension provider on (Specifically we have tested with the NEFilterDataProvider) while having a Xsan volume. The NEFilterDataProvider causing problems for the Xsan, and is stalling the shutdown until we get a panic from watchdog timeout, and only then the mac is fully shutdown. The problem from what we investigated and also talked with you, is that the Xsan process can't unmount the volume and stuck. We have also noticed that if we install a network extension and allow the popup of the network filters, i.e enabled the NEFilterDataProvider the computer is stuck, and the finder is in a non responsive state until a reboot (Also probably due to the fact the Xsan is now in a problematic state). This tests was done on latest versions of MacOs 13 & 14. We have taken a sysdiagnose from the computer while we have tested. Do you familiar with the problem (We got no answer on the feedback assistant)? Thank you, Idan

"Use location, address and addressRepresentations instead" Is it possible to know what kind of "Address" a MapItem is representing (State, County, Neighborhood etc) after a MKGeocodingRequest? Is it possible to find out the CLRegion or similar of an map item. (Now when we cannot read it from the Placemark)

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!

I'm creating an app that uses AVCaptureSession to pass camera input to AVCaptureMetadataOutput type set [metaout setMetadataObjectTypes:@[AVMetadataObjectTypeFace]] and scan Face. After updating to OS 26 Beta2 and iOS 26 Beta2, an issue has occurred where the delegate method of AVCaptureMetadataOutputObjectsDelegate is not called on some devices. The following devices are experiencing this issue. iPad (9th Gen) iPad air (4th Gen) iPhone 15 This issue has not occur on any other devices I have. I tried running the AVFoundation sample code on the Apple Developer site on the above device. The same problem still occurs. [https://developer.apple.com/documentation/avfoundation/capture_setup/avcambarcode_detecting_barcodes_and_faces] Are any additional settings required after OS 26 beta and iOS 26 beta? Or is there some problem on the OS side?

I'm experiencing some rare crash but only if I enable Xcode's "thread performance checker". The crash typically ends with these lines: std::_1::hash_table<std::_1::hash_value_type<long qosWaiterSignallerInvariantCheck ... and sometimes with "findPrimitiveInfoNoAssert" on the second line. I wonder if I am doing anything wrong, or is it a (hopefully known) issue in thread performance checker itself? It does look like some sort of data race bug, if to guess there's some internal dictionary that's not properly protected with a mutex or something. I'm using Xcode 16.4 running on macOS 15.5, building and running an app on iPhone with iOS 18.5. Cheers!

I just boxed up AppTransaction API. In the debug environment it appears to always return a VerificationResult that is .verified Unlike Storekit1 calling AppTransaction.shared does not seem to cause a sandbox receipt to actually get written on the app bundle in Derived data. I was trying to purposefully mess with the receipt in order to get AppTransaction to fail so I can test how my app behaves when errors occur but there is no receipt to mess with. I tried using the old exit(173) API and it does cause a receipt to be fetched but that seems to be completely ignored by AppTransaction, it validates even if you trash or tamper with the receipt given by exit(173). Is there a good way to test receipt validation failure using the high level Storekit2 API?

Hi All! Ever since the new PLA I have issues with adding my entitlements to my profiles. Previously when adding an entitlement I used the format [entitlementName] [AppId] [type] e.g. Apple Pay Pass Suppression [AppId] Development However ever since the new PLA I get an warning in my terminal that the template name is not supported by the App Store Connect API. Anyone that can help me out with the new format? I cant seem to find any helpful documentation online. Thanks! PS: the link in the screenshot points to this website: https://docs.fastlane.tools/actions/match/#managed-capabilities The naming strategy the use on the website doesnt work either: Apple Pay Pass Suppression Development

I haven’t been able to get this to work at any level! I’m running into multiple issues, any light shed on any of these would be nice: I can’t implement a bloom filter that produces the same output as can be found in the SimpleURLFilter sample project, after following the textual description of it that’s available in the documentation. No clue what my implementation is doing wrong, and because of the nature of hashing, there is no way to know. Specifically: The web is full of implementations of FNV-1a and MurmurHash3, and they all produce different hashes for the same input. Can we get the proper hashes for some sample strings, so we know which is the “correct” one? Similarly, different implementations use different encodings for the strings to hash. Which should we use here? The formulas for numberOfBits and numberOfHashes give Doubles and assign them to Ints. It seems we should do this conversing by rounding them, is this correct? Can we get a sample correct value for the combined hash, so we can verify our implementations against it? Or ignoring all of the above, can we have the actual code instead of a textual description of it? 😓 I managed to get Settings to register my first attempt at this extension in beta 1. Now, in beta 2, any other project (including the sample code) will redirect to Settings, show the Allow/Deny message box, I tap Allow, and then nothing happens. This must be a bug, right? Whenever I try to enable the only extension that Settings accepted (by setting its isEnabled to true), its status goes to .stopped and the error is, of course, .unknown. How do I debug this? While the extension is .stopped, ALL URL LOADS are blocked on the device. Is this to be expected? (shouldFailClosed is set to false) Is there any way to manually reload the bloom filter? My app ships blocklist updates with background push, so it would be wasteful to fetch the filter at a fixed interval. If so, can we opt out of the periodic fetch altogether? I initially believed the API to be near useless because I didn’t know of its “fuzzy matching” capabilities, which I’ve discovered by accident in a forum post. It’d be nice if those were documented somewhere! Thanks!!

My app encountered a crash problem. The analysis stack seems to be related to the keyboard. The system keyboard code is unresponsive for a long time until it crash. The feature of the stack, BrowserEngineKit, seems to indicate the webview scene. Xcode debugging found that tap the input box on the webview page can reproduce the same stack as the crash, but the crash cannot be reproduced. I noticed a feedback link https://developer.apple.com/forums/thread/784718, which is the same as the top of the crash stack I encountered, so the root cause of the problem may be similar, caused by the locking operation related to UIKeyboardTaskQueue. Hope to give some suggestions. Thanks. crash log: Incident Identifier: 39E3AFE6-43B1-4DE6-AC2B-D62C5EC89752 CrashReporter Key: AppleMetricKit Hardware Model: iPhone17,2 Process: iAliexpress Code Type: ARM-64 Parent Process: ? [1] Date/Time: 2025-07-02 22:59:00 Launch Time: Unknown OS Version: iPhone OS 18.1.1 (22B91) Report Version: 104 Exception Type: EXC_CRASH Exception Codes: KERN_SUCCESS Triggered by Thread: 0 Application Specific Information: &lt;RBSTerminateContext| domain:10 code:0x8BADF00D explanation:scene-update watchdog transgression: app&lt;com.alibaba.iAliexpress(A182346C-2A09-4082-9AAE-0EC7A1A1B5AB)&gt;:2263 exhausted real (wall clock) time allowance of 10.00 seconds ProcessVisibility: Unknown ProcessState: Running WatchdogEvent: scene-update WatchdogVisibility: Background WatchdogCPUStatistics: ( "Elapsed total CPU time (seconds): 15.280 (user 9.430, system 5.850), 25% CPU", "Elapsed application CPU time (seconds): 0.210, 0% CPU" ) reportType:CrashLog maxTerminationResistance:Interactive&gt; Thread 0 Crashed: 0 libsystem_kernel.dylib 0x00000001ea7f7f90 __psynch_cvwait :8 (in libsystem_kernel.dylib) 1 libsystem_pthread.dylib 0x000000022296aa7c _pthread_cond_wait :1248 (in libsystem_pthread.dylib) 2 Foundation 0x000000019908fa9c -[NSCondition waitUntilDate:] :132 (in Foundation) 3 Foundation 0x000000019908bea8 -[NSConditionLock lockWhenCondition:beforeDate:] :80 (in Foundation) 4 UIKitCore 0x000000019d05cbb4 -[UIKeyboardTaskQueue lockWhenReadyForMainThread] :784 (in UIKitCore) 5 UIKitCore 0x000000019d05c85c -[UIKeyboardTaskQueue waitUntilAllTasksAreFinished] :160 (in UIKitCore) 6 UIKitCore 0x000000019d56720c -[_UIKeyboardStateManager prepareForSelectionChange] :128 (in UIKitCore) 7 UIKitCore 0x000000019d5674f4 -[_UIKeyboardStateManager selectionWillChange:] :72 (in UIKitCore) 8 BrowserEngineKit 0x0000000257671688 -[BETextInteraction selectionWillChange:] :84 (in BrowserEngineKit) 9 UIKitCore 0x000000019d75d654 -[UIAsyncTextInteraction selectionWillChange:] :68 (in UIKitCore) 10 UIKitCore 0x000000019dbae374 -[_UIKeyboardTextSelectionController beginSelectionChange] :64 (in UIKitCore) 11 UIKitCore 0x000000019df5fed0 -[UITextSelectionInteraction tappedToPositionCursorWithGesture:atPoint:granularity:completionHandler:] :476 (in UIKitCore) 12 UIKitCore 0x000000019df5f948 -[UITextSelectionInteraction _checkForRepeatedTap:gestureLocationOut:] :1072 (in UIKitCore) 13 UIKitCore 0x000000019df60488 -[UITextSelectionInteraction _handleMultiTapGesture:] :852 (in UIKitCore) 14 UIKitCore 0x000000019cf879cc -[UIApplication sendAction:to:from:forEvent:] :100 (in UIKitCore) 15 UIKitCore 0x000000019d84ce98 -[UITextMultiTapRecognizer onStateUpdate:] :280 (in UIKitCore) 16 UIKitCore 0x000000019cfb6ac4 -[UIGestureRecognizerTarget _sendActionWithGestureRecognizer:] :128 (in UIKitCore) 17 UIKitCore 0x000000019cfb6934 _UIGestureRecognizerSendTargetActions :92 (in UIKitCore) 18 UIKitCore 0x000000019cfb66f4 _UIGestureRecognizerSendActions :284 (in UIKitCore) 19 UIKitCore 0x000000019cc69b28 -[UIGestureRecognizer _updateGestureForActiveEvents] :572 (in UIKitCore) 20 UIKitCore 0x000000019cc3b724 _UIGestureEnvironmentUpdate :2488 (in UIKitCore) 21 UIKitCore 0x000000019cd2fa00 -[UIGestureEnvironment _deliverEvent:toGestureRecognizers:usingBlock:] :336 (in UIKitCore) 22 UIKitCore 0x000000019cecffe4 -[UIGestureEnvironment _updateForEvent:window:] :188 (in UIKitCore) 23 UIKitCore 0x000000019cecf3c8 -[UIWindow sendEvent:] :2948 (in UIKitCore) 24 iAliexpress 0x0000000104e92000 -[UIWindow(AliHA) aliHASwizzledSendEvent:] UIWindow+AliHA.m:18 (in iAliexpress) 25 UIKitCore 0x000000019cd63b70 -[UIApplication sendEvent:] :376 (in UIKitCore) 26 iAliexpress 0x0000000104e91c84 -[UIApplication(SPM) alg_sendEvent:] AFSPMManager.m:0 (in iAliexpress) 27 UIKitCore 0x000000019cd6409c __dispatchPreprocessedEventFromEventQueue :1048 (in UIKitCore) 28 UIKitCore 0x000000019cd6df3c __processEventQueue :5696 (in UIKitCore) 29 UIKitCore 0x000000019cc66c60 updateCycleEntry :160 (in UIKitCore) 30 UIKitCore 0x000000019cc649d8 _UIUpdateSequenceRun :84 (in UIKitCore) 31 UIKitCore 0x000000019cc64628 schedulerStepScheduledMainSection :172 (in UIKitCore) 32 UIKitCore 0x000000019cc6559c runloopSourceCallback :92 (in UIKitCore) 33 CoreFoundation 0x000000019a434328 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ :28 (in CoreFoundation) 34 CoreFoundation 0x000000019a4342bc __CFRunLoopDoSource0 :176 (in CoreFoundation) 35 CoreFoundation 0x000000019a431dc0 __CFRunLoopDoSources0 :244 (in CoreFoundation) 36 CoreFoundation 0x000000019a430fbc __CFRunLoopRun :840 (in CoreFoundation) 37 CoreFoundation 0x000000019a430830 CFRunLoopRunSpecific :588 (in CoreFoundation) 38 GraphicsServices 0x00000001e64101c4 GSEventRunModal :164 (in GraphicsServices) 39 UIKitCore 0x000000019cf96eb0 -[UIApplication _run] :816 (in UIKitCore) 40 UIKitCore 0x000000019d0455b4 UIApplicationMain :340 (in UIKitCore) 41 iAliexpress 0x0000000104e9b0b8 _main main.m:17 (in iAliexpress) 42 dyld 0x00000001bfe1eec8 start :2724 (in dyld)

Hi, I have an installer package that runs a postinstall script. The script can take a long time to complete, as one thing it does is copy about 10-30 GB of files using the rsync tool. We noticed on macOS 15 that the installer would fail almost exactly 10 minutes after it started. Looking in the /var/log/install.log, I see a message like this: 2025-07-01 12:54:32-07 Work-M1 package_script_service[21562]: PackageKit: Terminating PKInstallTask(pid:21573). Task has exceeded its 600 seconds of runtime. This does not happen in my testing on macOS 12 (Monterey) I have a few questions about this: A) Is this documented, and which OS introduced this? B) Is there a way a developer can extend or disable the time limit via a setting in the installer package. Or if not, is there a way end end user can disable it temporarily on their system? Thanks, Andrew

We have recently ingested data using the App Store Connect API for: App Store Discovery and Engagement App Store Downloads I'm unable to match figures from fairly basic reports and I can't understand where I'm going wrong. For example: Running figures from App Store Connect > Analytics > Metrics > Product Page Views, with no filters, for a given date (e.g. 1 July 2025) - I get a completely different figure (smaller, almost half the volume) than when I try to use the data from the App Store Discover and Engagement report for the same date. For reference, I am looking at the sum of counts when event = Page view and page type = Product page. It's a similar thing for First-Time Downloads. Am I missing something obvious?

I was excited about the new APIs added to Network.framework in iOS 26 that offer structure concurrency support out of the box and a more modern API design in general. However I have been unable to use them to create a device-to-device QUIC connection. The blocker I ran into is that NetworkListener's run method requires the network protocol to conform to OneToOneProtocol, whereas QUIC conforms to MultiplexProtocol. And there doesn't seem to be any way to accept an incoming MultiplexProtocol connection? Nor does it seem possible to turn a UDP connection into a QUIC connection using NetworkConnection.prependProtocols() as that also only works for network protocols conforming to OneToOneProtocol. I suspect this is an accidental omission in the API design (?), and already filed a Feedback (FB18620438). But maybe I am missing something and there is a workaround or a different way to listen for incoming QUIC connections using the new NetworkListener? QUIC.TLS has methods peerAuthenticationRequired(Bool) and peerAuthenticationOptional(Bool), which makes me think that peer to peer QUIC connections are intended to be supported? I would also love to see documentation for those methods. For example I wonder what exact effect peerAuthenticationRequired(false) and peerAuthenticationOptional(false) would have and how they differ.

I am a developer working on iOS apps. I would like to report an issue occurring in iOS 26 beta 2. Our company has Enterprise account, and we are developing apps. When we distribute these apps, and install them on a device running iOS 26 beta2, apps install successfully, but apps crashed immediately after being launched. MDM Install Application When I install the app via Xcode and trust it, apps will run. Launchd job spawn failed This issue does not occur on versions prior to iOS 26. I would like to know if this is a problem that will be resolved in future updates, or if it is a policy change.

Hey, we also opened a bug regarding this behavior on April, back when you introduce the new event on MacOs 15.4 The bug ticket is: FB17139326 Starting macOs 15.4 you added a new event for the system extension framework named: tcc_modify The event should be triggered every-time there is a change regarding the tcc db (granted / revoked using various ways). One of the ways you can grant / revoke tcc db permission is by changing the user sqlite with root permissions. You can change various permissions regarding the user for example the apps that allowed to use microphone permissions. It is expected that when granted / revoked permissions using sqlite for microphone we will get notify from the system extension for tcc modify event. but the actual result is that the permission is added without any tcc modify event. We wanted to know if this is intentional that changing the user tcc db with root permissions, using sqlite and not conventional methods (user popup / settings), suppose to not initiate an event, and we should monitor them using other methods. Thank you, Idan

Under Xcode 26 beta 3 I'm trying to build a project which uses Metal. I've installed the Metal Toolchain 26.0 under Settings -> Components, but when I start a build it fails during the "Prepare build" step with the following error (repeated many times): stat(/var/run/com.apple.security.cryptexd/mnt/com.apple.MobileAsset.MetalToolchain-v17.1.5276.7.Pb9SLL/Metal.xctoolchain/usr/bin/clang): No such file or directory (2) I've confirmed that there is in fact no 'clang' binary in that directory. I've tried using xcode-select to set the Xcode 26 Beta app as the active developer directory, and xcodebuild -version shows: Xcode 26.0 Build version 17A5276g Any ideas on other things to try?

I have installed the iOS 26 Beta on my device and conducted a comprehensive functionality test of my iOS application, which I designed and developed. The application includes a feature that allows users to share images directly to X (formerly Twitter) and Facebook. During testing, I encountered an issue where the icons for X (formerly Twitter) and Facebook do not appear in the share dialog, despite both apps being installed on the device. This issue prevents users from sharing images to these platforms directly from the app. Steps to Reproduce: 1.Install iOS 26 Beta on a compatible device. 2.Ensure that both the X (formerly Twitter) and Facebook apps are installed and logged in on the device. 3.Open the iOS application and navigate to the image sharing feature. 4.Attempt to share an image using the share dialog. 5.Observe that the icons for X (formerly Twitter) and Facebook are missing from the share options. Expected Behavior: The share dialog should display icons for X (formerly Twitter) and Facebook, allowing users to share images directly to these platforms. Actual Behavior: The icons for X (formerly Twitter) and Facebook do not appear in the share dialog, preventing direct sharing to these platforms. Code Implementation: I have not implemented any code to exclude X (formerly Twitter) and Facebook from the share options. Below is the relevant code for controlling the share screen: let activityViewController = UIActivityViewController(activityItems: activityItems, applicationActivities: applicationActivities) let excludedTypes = [ UIActivity.ActivityType.assignToContact, UIActivity.ActivityType.print, ] activityViewController.excludedActivityTypes = excludedTypes activityViewController.completionWithItemsHandler = completion self.present(activityViewController, animated: true, completion: nil) As shown in the implementation, there is no exclusion of X (formerly Twitter) and Facebook, yet their icons do not appear in the share dialog.