Overview

iOS Development environment Xcode 16.4, macOS 15.6.1 (24G90) Run-time configuration: iOS 17.2+ Short Description After having successfully established an NWConnection (either as UDP or TCP), and subsequently receiving the error code: UDP Connection failed: 57 The operation couldn't be completed. (Network.NWError error 57 - Socket is not connected), available Interfaces: [enO] via NWConnection.stateUpdateHandler = { (newState) in ... } while newState == .failed the data connection does not restart by itself once cellular (RF) telephony coverage is established again. Detailed Description Context: my app has a continuous cellular data connection while in use. Either a UDP or a TCP connection is established depending on the user settings. The setup data connection works fine until the data connection gets disconnected by loss of connection to a available cellular phone base station. This disconnection simply occurs in very poor UMTS or GSM cellular phone coverage. This is totally normal behavior in bad reception areas like in mountains with signal loss. STEPS TO REPRODUCE Pre-condition App is running with active data connection. Action iPhone does loss the cellular data connection previously setup. Typically reported as network error code 57. Observed The programmed connection.stateUpdateHandler() is called in network connection state '.failed' (OK). The self-programmed data re-connection includes: a call to self.connection.cancel() a call to self.setupUDPConnection() or self.setupConnection() depending on the user settings to re-establish an operative data connection. However, the iPhone's UMTS/GSM network data (re-)connection state is not properly identified/notified via NWConnection API. There's no further network state notification by means of NWConnection even though the iPhone has recovered a cellular data network. Expected The iPhone or any other means automatically reconnects the interrupted data connection on its own. The connection.stateUpdateHandler() is called at time of the device's networking data connection (RF) recovering, subsequently to a connection state failed with error code 57, as the RF module is continuously (independently from the app) for available telephony networks. QUESTION How to systematically/properly detect a cellular phone data network reconnection readiness in order to causally reinitialize the NWConnection data connection available used in app. Relevant code extract Setup UDP connection (or similarly setup a TCP connection) func setupUDPConnection() { let udp = NWProtocolUDP.Options.init() udp.preferNoChecksum = false let params = NWParameters.init(dtls: nil, udp: udp) params.serviceClass = .responsiveData // service type for medium-delay tolerant, elastic and inelastic flow, bursty, and long-lived connections connection = NWConnection(host: NWEndpoint.Host.name(AppConstant.Web.urlWebSafeSky, nil), port: NWEndpoint.Port(rawValue: AppConstant.Web.urlWebSafeSkyPort)!, using: params) connection.stateUpdateHandler = { (newState) in switch (newState) { case .ready: //print("UDP Socket State: Ready") self.receiveUDPConnection(). // data reception works fine until network loss break case .setup: //print("UDP Socket State: Setup") break case .cancelled: //print("UDP Socket State: Cancelled") break case .preparing: //print("UDP Socket State: Preparing") break case .waiting(let error): Logger.logMessage(message: "UDP Connection waiting: "+error.errorCode.description+" \(error.localizedDescription), available Interfaces: \(self.connection.currentPath!.availableInterfaces.description)", LoggerLevels.Error) break case .failed(let error): Logger.logMessage(message: "UDP Connection failed: "+error.errorCode.description+" \(error.localizedDescription), available Interfaces: \(self.connection.currentPath!.availableInterfaces.description)", LoggerLevels.Error) // data connection retry (expecting network transport layer to be available) self.reConnectionServer() break default: //print("UDP Socket State: Waiting or Failed") break } self.handleStateChange() } connection.start(queue: queue) } Handling of network data connection loss private func reConnectionServer() { self.connection.cancel() // Re Init Connection - Give a little time to network recovery let delayInSec = 30.0. // expecting actually a notification for network data connection availability, instead of a time-triggered retry self.queue.asyncAfter(deadline: .now() + delayInSec) { switch NetworkConnectionType { case 1: self.setupUDPConnection() // UDP break case 2: self.setupConnection() // TCP break default: break } } } Does it necessarily require the use of CoreTelephony class CTTelephonyNetworkInfo or class CTCellularData to get notifications of changes to the user’s cellular service provider?

This issue was in the first iOS 26 beta and it still there with Xcode 26 beta 6 (17A5305f). Feedback is FB18581605 and contains sample project to reproduce the issue. I assign a target and action to a UISlider for the UIControl.Event.valueChanged value: addTarget(self, action: #selector(sliderValueDidChange), for: .valueChanged) Here’s the function. @objc func sliderValueDidChange(_ sender: UISlider, event: UIEvent) { print(event) } When printing the event value, there is a crash. When checking the event value with lldb, it appears uninitialized.

I'm trying to use FSKit to create a File System Extension that can read MFS-formatted disk images, following the old MFSLives sample project for reference. I have a well-formed MFS formatted img file that I'm trying to mount, but I'm having trouble getting the system to actually use my FSModule. DiskImageMounter fails to mount the img file, but I'm able to use it to attach the image as a device by clicking "Ignore" when it prompts me that it isn't able to read the disk. This is effectively the same as using the hdiutil command in Terminal. hdiutil attach -imagekey diskimage-class=CRawDiskImage -nomount Sample.img I've read that FSKit isn't fully integrated with Disk Arbitration yet, so I decided to see if I could force the system to use my extension by using the mount command. mkdir /tmp/Sample mount -F -t MFS disk54 /tmp/Sample Watching the logs in Console, I can see that fskit_agent sees my extension in its "New Modules List", and I see an MFS process gets launched and logs messages from com.apple.running and com.apple.xpc. However, the logs from the MFS process end there, and don't include any of my debug logs, which should be posted when my FSFileSystem subclass is created or when probeResource is called. Ultimately the mount command fails with exit code 69 and prints the following error message: mount: Probing resource: The operation couldn’t be completed. Permission denied mount: Unable to invoke task I've checked everything I could think of: The extension is enabled in System Settings. The extension has the FSKit Module capability added in Xcode. The Info.plist sets the FSSupportsBlockResources key to YES. The Info.plist sets both the FSName and FSShortName keys to MFS. The extension has its Team set to my developer account, with Xcode setting the Provisioning Profile and Signing Certificate automatically. The hosting app has its Team set to my developer account with the "Development" signing certificate. I wanted to see if it was something with my project configuration or implementation, so I downloaded the KhaosT/FSKitSample project from GitHub. Once I got that building, I tried mounting a disk image using the MyFS extesnion, but my system wouldn't run that either. Is there something about the system configuration I should be aware of to enable File System Extensions? I have my MFS extension showing up and enabled, but I'm not sure if there's something I'm missing that I still have to do. Is there a capability or signing requirement I didn't list that's required for the extension to run? The documentation doesn't specify anything about the entitlements, signing capabilities, or Info.plist keys, so I'm not sure what I should be looking for. I'm running macOS Sequoia 15.6.1 on an M2 Max MacBook Pro, and I'm building my project with Xcode 26 beta 6.

Hello Apple Developers， I encountered a 401 Unauthorized error when developing a web map. I asked the developer to check whether my key authorization is normal. This is the test website: https://pro.kyeasy.com/#/user/map Test account: +33 0625823391 Test password: jinghui111 Domain pro.kyeasy.com Token Type MapKit JS Restriction Type Domain Restricted Token eyJraWQiOiJKNzZSNkpSM0FLIiwidHlwIjoiSldUIiwiYWxnIjoiRVMyNTYifQ.eyJpc3MiOiIzSzQ4UEE2MjRNIiwiaWF0IjoxNzU0ODA3MTc2LCJvcmlnaW4iOiJwcm8ua3llYXN5LmNvbSJ9.ZQLVPpn2Zbm5uHhT_YaA6T2eyaYNKYL5X1Z3DIC17vo4FlOLAKJnXUdB_0zOLDufVDT-CNZWK08_5KkjI5pAKA Creation Date 08/10/25 Expiration Date None Status Active Created by Jinghui Yang info java develop team id： 3K48PA624M Key ID DNRWXXA4L2 Created by Jinghui Yang on 2025/08/10 06:08 am bunld id 3K48PA624M.maps.com.kyeasy p8 DNRWXXA4L2.p8

Hello, I'm experiencing difficulties installing the app created by my team, both from the App Store and TestFlight. I'm currently using Tahoe 26.0 Beta (25A5346a), and even though the app isn't previously installed, I'm still unable to proceed with the installation. I was able to obtain these logs, but I'm uncertain about how to rectify this issue. Logs from AppStore: error 10:52:33.103471+0200 appstoreagent [PurchaseService]: [6E4C7375] Purchase completed with error: Error Domain=ASDErrorDomain Code=506 "Duplicate request" UserInfo={NSLocalizedDescription=Duplicate request, NSLocalizedFailureReason=Request is a duplicate of UPD9C204399/com.imperum.app:6743783187} default 10:52:34.164171+0200 appstoreagent [PurchaseService]: [C78059BF] Starting purchase of 6743783187:com.imperum.app by com.apple.AppStore default 10:52:34.164661+0200 appstoreagent [BUYC78059BF/com.imperum.app:6743783187] Starting purchase for client: com.apple.AppStore default 10:52:34.164995+0200 appstoreagent [BUYC78059BF/com.imperum.app:6743783187] Failing this request as a duplicate of UPD9C204399/com.imperum.app:6743783187 error 10:52:34.165014+0200 appstoreagent DetectDuplicateRequestTask completing with error: Error Domain=ASDErrorDomain Code=506 "Duplicate request" UserInfo={NSLocalizedDescription=Duplicate request, NSLocalizedFailureReason=Request is a duplicate of UPD9C204399/com.imperum.app:6743783187} error 10:52:34.165086+0200 appstoreagent [PurchaseService]: [C78059BF] Purchase completed with error: Error Domain=ASDErrorDomain Code=506 "Duplicate request" UserInfo={NSLocalizedDescription=Duplicate request, NSLocalizedFailureReason=Request is a duplicate of UPD9C204399/com.imperum.app:6743783187} Logs from TestFlight: error 10:54:35.751574+0200 appstoreagent [TFU3C168938/com.imperum.app:6743783187]: Failed to set IXProgressHint on the coordinator: Error Domain=IXErrorDomain Code=5 "A coordinated app install already exists for [com.imperum.app/Invalid/[system-defined]] with intent IXCoordinatorIntentUpdating (creator App Store) but request by appstoreagent (pid 5805) was for intent IXCoordinatorIntentInitiating" UserInfo={NSLocalizedFailureReason=Coordinated install exists with different intent., FunctionName=-[IXSClientConnection _remote_createAppInstallCoordinatorWithSeed:createIfNotExisting:requireMatchingIntent:scopeRequirement:completion:], SourceFileLine=641, NSLocalizedDescription=A coordinated app install already exists for [com.imperum.app/Invalid/[system-defined]] with intent IXCoordinatorIntentUpdating (creator App Store) but request by appstoreagent (pid 5805) was for intent IXCoordinatorIntentInitiating} error 10:54:35.751597+0200 appstoreagent AppInstallImportAndPolicyTask completing with error: Error Domain=IXErrorDomain Code=5 "A coordinated app install already exists for [com.imperum.app/Invalid/[system-defined]] with intent IXCoordinatorIntentUpdating (creator App Store) but request by appstoreagent (pid 5805) was for intent IXCoordinatorIntentInitiating" UserInfo={NSLocalizedFailureReason=Coordinated install exists with different intent., FunctionName=-[IXSClientConnection _remote_createAppInstallCoordinatorWithSeed:createIfNotExisting:requireMatchingIntent:scopeRequirement:completion:], SourceFileLine=641, NSLocalizedDescription=A coordinated app install already exists for [com.imperum.app/Invalid/[system-defined]] with intent IXCoordinatorIntentUpdating (creator App Store) but request by appstoreagent (pid 5805) was for intent IXCoordinatorIntentInitiating} error 10:54:35.751641+0200 appstoreagent [TFU3C168938/com.imperum.app:6743783187] TestFlight import failed: Error Domain=IXErrorDomain Code=5 "A coordinated app install already exists for [com.imperum.app/Invalid/[system-defined]] with intent IXCoordinatorIntentUpdating (creator App Store) but request by appstoreagent (pid 5805) was for intent IXCoordinatorIntentInitiating" UserInfo={NSLocalizedFailureReason=Coordinated install exists with different intent., FunctionName=-[IXSClientConnection _remote_createAppInstallCoordinatorWithSeed:createIfNotExisting:requireMatchingIntent:scopeRequirement:completion:], SourceFileLine=641, NSLocalizedDescription=A coordinated app install already exists for [com.imperum.app/Invalid/[system-defined]] with intent IXCoordinatorIntentUpdating (creator App Store) but request by appstoreagent (pid 5805) was for intent IXCoordinatorIntentInitiating} error 10:54:35.751807+0200 appstoreagent InstallTestFlightAppsTask completing with error: Error Domain=IXErrorDomain Code=5 "A coordinated app install already exists for [com.imperum.app/Invalid/[system-defined]] with intent IXCoordinatorIntentUpdating (creator App Store) but request by appstoreagent (pid 5805) was for intent IXCoordinatorIntentInitiating" UserInfo={NSLocalizedFailureReason=Coordinated install exists with different intent., FunctionName=-[IXSClientConnection _remote_createAppInstallCoordinatorWithSeed:createIfNotExisting:requireMatchingIntent:scopeRequirement:completion:], SourceFileLine=641, NSLocalizedDescription=A coordinated app install already exists for [com.imperum.app/Invalid/[system-defined]] with intent IXCoordinatorIntentUpdating (creator App Store) but request by appstoreagent (pid 5805) was for intent IXCoordinatorIntentInitiating} error 10:54:35.751919+0200 TestFlight Installation request for 1 app(s) failed with error: Error Domain=IXErrorDomain Code=5 "A coordinated app install already exists for [com.imperum.app/Invalid/[system-defined]] with intent IXCoordinatorIntentUpdating (creator App Store) but request by appstoreagent (pid 5805) was for intent IXCoordinatorIntentInitiating" UserInfo={NSLocalizedDescription=A coordinated app install already exists for [com.imperum.app/Invalid/[system-defined]] with intent IXCoordinatorIntentUpdating (creator App Store) but request by appstoreagent (pid 5805) was for intent IXCoordinatorIntentInitiating, FunctionName=-[IXSClientConnection _remote_createAppInstallCoordinatorWithSeed:createIfNotExisting:requireMatchingIntent:scopeRequirement:completion:], SourceFileLine=641, NSLocalizedFailureReason=Coordinated install exists with different intent.} Any help please..

I’m using the new preferredTransition = .zoom(...) API introduced in iOS 18. Here’s a simplified version of what I do on app startup: let listVC = CollectionViewController(collectionViewLayout: layout) let detailVC = DetailViewController() detailVC.preferredTransition = .zoom(sourceViewProvider: { context in let indexPath = IndexPath(row: 0, section: 0) let cell = listVC.collectionView.cellForItem(at: indexPath) return cell }) let nav = UINavigationController() nav.setViewControllers([listVC, detailVC], animated: false) window?.rootViewController = nav window?.makeKeyAndVisible() This is meant to restore the UI state from a previous session — the app should launch directly into the DetailViewController. The Problem When I launch the app with setViewControllers([listVC, detailVC], animated: false), the transition from listVC to detailVC appears correctly (i.e., no animation, as intended), but the drag-to-dismiss gesture does not work. The back button appears, and tapping it correctly triggers the zoom-out transition back to the cell, so the preferredTransition = .zoom(...) itself is properly configured. Interestingly, if I delay the push with a DispatchQueue.main.async and instead do: nav.setViewControllers([listVC], animated: false) DispatchQueue.main.async { nav.pushViewController(detailVC, animated: true) } …then everything works perfectly — including the interactive swipe-to-dismiss gesture — but that introduces an unwanted visual artifact: the user briefly sees the listVC, and then it pushes to detailVC, which I’m trying to avoid. My Question Is there a way to enable the swipe-to-dismiss gesture when using setViewControllers([listVC, detailVC], animated: false) It can be very confusing for users if swipe-to-dismiss only works in certain cases inconsistently. Thanks

Is this possible while inserting a String into Set Crashed: com.apple.root.user-initiated-qos.cooperative 0 libswiftCore.dylib 0xf4c0 _assertionFailure(_:_:flags:) + 136 1 libswiftCore.dylib 0x17f484 ELEMENT_TYPE_OF_SET_VIOLATES_HASHABLE_REQUIREMENTS(_:) + 3792 2 MyEatApp 0x44f6e8 specialized _NativeSet.insertNew(_:at:isUnique:) + 4333926120 (<compiler-generated>:4333926120) 3 MyEatApp 0x44eaec specialized Set._Variant.insert(_:) + 4333923052 (<compiler-generated>:4333923052) 4 MyEatApp 0x479f7c HomeViewModel.hanldeAnnouncementCard(from:) + 293 (HomeViewModel+PersonalizedOffer.swift:293) 5 libswift_Concurrency.dylib 0x5c134 swift::runJobInEstablishedExecutorContext(swift::Job*) + 292 6 libswift_Concurrency.dylib 0x5d5c8 swift_job_runImpl(swift::Job*, swift::SerialExecutorRef) + 156 7 libdispatch.dylib 0x13db0 _dispatch_root_queue_drain + 364 8 libdispatch.dylib 0x1454c _dispatch_worker_thread2 + 156 9 libsystem_pthread.dylib 0x9d0 _pthread_wqthread + 232 10 libsystem_pthread.dylib 0xaac start_wqthread + 8

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've been getting intermittent failures on Xcode code compiling my app on multiple platforms because it fails to compile a metal shader. The Metal Toolchain was not installed and could not compile the Metal source files. Download the Metal Toolchain from Xcode > Settings > Components and try again. Sometimes if I re-run it, it works fine. Then I'll run it again, and it will fail. If you tell me to file a feedback, please tell me what information would be useful and actionable, because this is all I have.

Hello, I'm developing a feature for my app, that allows users to challenge their friends. The friend request functionality is built using Universal Links, but I've run into a significant issue. The Universal Links are correctly deep-linking into the app. However, once the app opens, nothing happens—the friend request acceptance or rejection flow does not occur. This prevents users from completing friend requests and building their friend list. Here are examples of the Universal Links I'm generating: https://www.strike-force.app/invite?type=invite&userID=... https://www.strike-force.app/invite?type=invite&friendRequestID=... https://www.strike-force.app/profile?userID=... I've recently updated my cloudflare-worker.js to serve a paths array of ["*"] in the AASA file, so I believe the links themselves should be valid. Technical Details & Error Logs In the console, I am consistently seeing the following error message: Cannot issue sandbox extension for URL:https://www.strike-force.app/invite?token=7EF1E439-090B-4DF2-BE64-9904F50A3F8B Received port for identifier response: <(null)> with error:Error Domain=RBSServiceErrorDomain Code=1 "Client not entitled" UserInfo={RBSEntitlement=com.apple.runningboard.process-state, NSLocalizedFailureReason=Client not entitled, RBSPermanent=false} elapsedCPUTimeForFrontBoard couldn't generate a task port This error appears to be related to entitlements and process state, but I am not sure if it's the root cause of the Universal Link issue or a separate problem. The 'Client not entitled' error on line 3 has had me chasing down entitlements issues. But, I've added the Associated Domains entitlement with the proper applink URLs and verified this in my Developer Portal. I've regenerated my provisioning profile, manually installed it, and selected/de-selected Automatically Manage Signing. As well I've verified my AASA file and it's correctly being served via HTTPS and returning a 200. curl -i https://strike-force.app/.well-known/apple-app-site-association curl -i https://www.strike-force.app/.well-known/apple-app-site-association I am looking for guidance on why the friend request flow is not being triggered after a successful deep-link and how I can fix the related error. Any insights or suggestions would be greatly appreciated.

I am debugging ImageCaptureCore to communicate with external cameras. When I called the PTP function below to send a command and add data, the response timed out for more than 5 seconds. After waiting for a period of time, I obtained the response. However, the response callback function obtained responsivData.length as zero and ptpResponseData.length as zero too. (void)requestSendPTPCommand:(NSData *)ptpCommand outData:(NSData *)ptpData completion:(void (^)(NSData *responseData, NSData *ptpResponseData, NSError *error))completion; data is below: Wrote 1 = 0x1 bytes PTP：send data: (hexdump of 1 bytes) [ ] I/PTP (14564): 0000 01 - .

When I try to install the iOS 26.0 Universal Simulator component with Xcode-beta 5 I get the following error: Download failed. Domain: DVTDownloadableErrorDomain Code: 41 User Info: { DVTErrorCreationDateKey = "2025-08-11 14:39:06 +0000"; } -- Download failed. Domain: DVTDownloadableErrorDomain Code: 41 -- System Information macOS Version 15.6 (Build 24G84) Xcode 26.0 (24198.5) (Build 17A5295f) Timestamp: 2025-08-11T17:39:06+03:00

Right now, the traffic light buttons overlapped on my iPad app top corner on windows mode (full screen is fine). How do I properly design my app to avoid the traffic light buttons? Detect that it is iPadOS 26?

Hello, I have a number of UIViewControllers that are presented as follows: vc.modalPresentationStyle = UIModalPresentationStyle.popover vc.modalTransitionStyle = UIModalTransitionStyle.coverVertical self.present(vc, animated: true, completion: nil) The VC is designed from a Storyboard where I set the 'view' of the VC to have a .clear 'backgroundColor', I have a smaller 'Alert View' added as a subview which is what the user interacts with. In iOS 13 - iOS 18 this would present modally, not take up the entire screen and allow the user to see relevant context from the screen underneath. In iOS 26 Beta 5 and every beta prior the system injects a 'UIDropShadowView' in the View Hierarchy, this view has a solid color backdrop, either white/black depending on light/dark mode. This causes all underlying content to be blocked and essentially forces a full screen modal presentation despite the existing design. I am looking for a way to remove this solid color. I'm not sure if it's intentional or a bug / oversight. I have been able to remove it in a hacky way, I cycle the view hierarchy to find 'UIDropShadowView' and set it's backdrop to transparent. However when you swipe down to partially dismiss the view it turns to Liquid Glass when it is around 75% dismissed and then resets the background color to white/black. I tried creating a custom UIViewControllerTransitioningDelegate so that I could re-implement the existing behaviour but it's incredibly difficult to mimic the partial dismiss swipe down effect on the VC. I have also tried changing my presentation to: vc.modalPresentationStyle = UIModalPresentationStyle.overFullScreen vc.modalTransitionStyle = UIModalTransitionStyle.crossDissolve This works but then the user loses the ability to interactively swipe to dismiss. Any help would be appreciated. Thank you!

Trying to upload an iOS26 app archive with Xcode 26 beta 7 and getting ITMS-90717: Invalid large app icon, meaning my app is not eligible for TestFlight testing. My App contains an IconComposer .icon asset, so I'm not sure what it's complaining about. I'm not seeing anything in the release notes about this, and I'm not sure if I'm doing something wrong or not.

What happened to CMD-Option-Click in Xcode 26 for opening a symbol in a new editor split pane? This was one of the most usefull shortcuts. Xcode 26 is a pain to use without it.

Hey all! in my personal quest to make future proof apps moving to Swift 6, one of my app has a problem when setting an artwork image in MPNowPlayingInfoCenter Here's what I'm using to set the metadata func setMetadata(title: String? = nil, artist: String? = nil, artwork: String? = nil) async throws { let defaultArtwork = UIImage(named: "logo")! var nowPlayingInfo = [ MPMediaItemPropertyTitle: title ?? "***", MPMediaItemPropertyArtist: artist ?? "***", MPMediaItemPropertyArtwork: MPMediaItemArtwork(boundsSize: defaultArtwork.size) { _ in defaultArtwork } ] as [String: Any] if let artwork = artwork { guard let url = URL(string: artwork) else { return } let (data, response) = try await URLSession.shared.data(from: url) guard (response as? HTTPURLResponse)?.statusCode == 200 else { return } guard let image = UIImage(data: data) else { return } nowPlayingInfo[MPMediaItemPropertyArtwork] = MPMediaItemArtwork(boundsSize: image.size) { _ in image } } MPNowPlayingInfoCenter.default().nowPlayingInfo = nowPlayingInfo } the app crashes when hitting MPMediaItemPropertyArtwork: MPMediaItemArtwork(boundsSize: defaultArtwork.size) { _ in defaultArtwork } or nowPlayingInfo[MPMediaItemPropertyArtwork] = MPMediaItemArtwork(boundsSize: image.size) { _ in image } commenting out these two make the app work again. Again, no clue on why. Thanks in advance

Looking for any method to quickly flatten a PDF without opening Preview and without installing 3 party software. Any ideas? Save as PDF in Preview works, but I don't want to have to open Preview each time I need to do this. The Create PDF action which appears in Finder when you select 2 or more PDFs flattens PDFs, but it requires me to select 2 or more files, and I generally don't want to combine PDFs--I simply wish to flatten a PDF. Most Automator and Shortcuts options I am aware of do not flatten PDFs, and in some cases, strip out form field data from PDFs.

The following is verbatim of a feedback report (FB19809442) I submitted, shared here as someone else might be interested to see it (I hate the fact that we can't see each other's feedbacks). On iOS 16, TextKit 2 calls NSTextLayoutFragment's draw(at:in:) method once for the first paragraph, but for every other paragraph, it calls it continuously on every scroll step in the UITextView. (The first paragraph is not cached; its draw is called again when it is about to be displayed again, but then it is again called only once per its lifecycle.) On iOS 17, the behavior is similar; the draw method gets called once for the 1st and 2nd paragraph, and for every other paragraph it again gets called continuously as a user scrolls a UITextView. On iOS 18 (and iOS 26 beta 4), TextKit 2 calls the layout fragment's draw(at:in:) on every scroll step in the UITextView, for all paragraphs. This results in terrible performance. TextKit 2 is promised to bring many performance benefits by utilizing the viewport - a new concept that represents the visible area of a text view, along with a small overscroll. However, having the draw method being constantly called almost negates all the performance benefits that viewport brings. Imagine what could happen if someone needs to add just a bit of logic to that draw method. FPS drops significantly and UX is terribly degraded. I tried optimizing this by only rendering those text line fragments which are in the viewport, by using NSTextViewportLayoutController.viewportBounds and converting NSTextLineFragment.typographicBounds to the viewport-relative coordinate space (i.e. the coordinate space of the UITextView itself). However, this patch only works on iOS 18 where the draw method is called too many times, as the viewport changes. (I may have some other problems in my implementation, but I gave up on improving those, as this can't work reliably on all OS versions since the underlying framework isn't calling the method consistently.) Is this expected? What are our options for improving performance in these areas?

Problem summary I have a macOS helper app that is launched from a sandboxed main app. The helper: has com.apple.security.app-sandbox = true and com.apple.security.inherit = true in its entitlements, is signed and embedded inside the main app bundle (placed next to the main executable in Contents/MacOS), reports entitlement_check = 1 (code signature contains sandbox entitlement, implemented via SecStaticCode… check), sandbox_check(getpid(), NULL, 0) returns 1 (runtime sandbox enforcement present), APP_SANDBOX_CONTAINER_ID environment variable is not present (0). Despite that, Cocoa APIs return non-container home paths: NSHomeDirectory() returns /Users/<me>/ (the real home). [[NSFileManager defaultManager] URLsForDirectory:inDomains:] and URLForDirectory:inDomain:appropriateForURL:create:error: return paths rooted at /Users/<me>/ (not under ~/Library/Containers/<app_id>/Data/...) — i.e. they look like non-sandboxed locations. However, one important exception: URLForDirectory:... for NSItemReplacementDirectory (temporary/replacement items) does return a path under the helper's container (example: ~/Library/Containers/<app_id>/Data/tmp/TemporaryItems/NSIRD_<helper_name>_hfc1bZ). This proves the sandbox is active for some FileManager APIs, yet standard directory lookups (Application Support, Documents, Caches, and NSHomeDirectory()) are not being redirected to the container. What I expect The helper (which inherits the sandbox and is clearly sandboxed) should get container-scoped paths from Cocoa’s FileManager APIs (Application Support, Documents, Caches), i.e. paths under the helper’s container: /Users/<me>/Library/Containers/<app_id>/Data/.... What I tried / diagnostics already gathered Entitlements & code signature codesign -d --entitlements :- /path/to/Helper.app/Contents/MacOS/Helper # shows com.apple.security.app-sandbox = true and com.apple.security.inherit = true Runtime checks (Objective-C++ inside helper): extern "C" int sandbox_check(pid_t pid, const char *op, int flags); NSLog(@"entitlement_check = %d", entitlement_check()); // SecStaticCode check NSLog(@"env_variable_check = %d", (getenv("APP_SANDBOX_CONTAINER_ID") != NULL)); NSLog(@"runtime_sandbox_check = %d", sandbox_check(getpid(), nullptr, 0)); NSLog(@"NSHomeDirectory = %s", NSHomeDirectory()); NSArray *urls = [[NSFileManager defaultManager] URLsForDirectory:NSApplicationSupportDirectory inDomains:NSUserDomainMask]; NSLog(@"URLsForDirectory: %@", urls); Observed output: entitlement_check = 1 env_variable_check = 0 runtime_sandbox_check = 1 NSHomeDirectory = /Users/<me> URLsForDirectory: ( "file:///Users/<me>/Library/Application%20Support/..." ) Temporary/replacement directory (evidence sandbox active for some APIs): NSURL *tmpReplacement = [[NSFileManager defaultManager] URLForDirectory:NSItemReplacementDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:YES error:&err]; NSLog(@"NSItemReplacementDirectory: %@", tmpReplacement.path); Observed output (example): /Users/<me>/Library/Containers/<app_id>/Data/tmp/TemporaryItems/NSIRD_<helper_name>_hfc1bZ Other facts Calls to NSHomeDirectory() and URLsForDirectory: are made after main() to avoid "too early" initialization problems. Helper is placed in Contents/MacOS (not Contents/Library/LoginItems). Helper is a non-GUI helper binary launched by the main app (not an XPC service). macOS version: Sequoia 15.6 Questions Why do NSHomeDirectory() and URLsForDirectory: return the real /Users/<me>/... paths in a helper process that is clearly sandboxed (entitlement + runtime enforcement), while NSItemReplacementDirectory returns a container-scoped temporary path? Is this behavior related to how the helper is packaged or launched (e.g., placement in Contents/MacOS vs Contents/Library/LoginItems, or whether it is launched with posix_spawn/fork+exec vs other APIs)? Are there additional entitlements or packaging rules required for a helper that inherits sandbox to have Cocoa directory APIs redirected to the container (for Application Support, Documents, Caches)? *Thanks in advance — I can add any requested logs