Posts under App & System Services topic

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Waiting for HID Entitlements for MONTHS
Hi Apple support, We requested the 4 HID-related Entitlements back in December 2024. Similarly to another post here in the forums that was completely ignored, our request has NOT been processed for months. Mailing the support staff results in boilerplate email responses with no content, calling them results in a chat with very nice people who are unable to help since they can't seem to reach the entitlement team directly. Having to wait for MONTHS when dealing with one of the biggest and supposedly best companies in the world is beyond disappointing. Can anyone help? Is there anyone else that has had this same issue and that has found a work-around? I can share all necessary details. Thanks, Matteo
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Apr ’25
The host app appears in Accessibility Permission
I'm learning XPC by inspecting the GitHub Copilot project. I figured out that the schema works as follows: The host app with a UI to manage settings A Service Extension that controls the Xcode Editor A communication bridge cli app that connects the first two As far as I understand an app appears in the Accessibility Permission when it calls the next method: let key = kAXTrustedCheckOptionPrompt.takeRetainedValue() as NSString AXIsProcessTrustedWithOptions([key: true] as CFDictionary) This method is only called by the Service Extension. However, when I run a release build from the /Application folder (where launch agents point to), there are two records appearing in the Accessibility Permission list: The host app The needed Service Extension I compared all metadata files from Copilot with my copy line-by-line, but still can't figure out why the host app record appears in the Accessibility Permission, since the host app does not call the AXIsProcessTrustedWithOptions() method at all. Could you give me any clue to help me wrap my head around it?
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Mar ’25
CoreBluetooth and Swift strict concurrency checking
As of iOS 18.3 SDK, Core Bluetooth is still mostly an Objective-C framework: key objects like CBPeripheral inherit from NSObjectProtocol and does not conform to Sendable. CBCentralManager has a convenience initializer that allows the caller to provide a dispatch_queue for delegate callbacks. I want my Swift package that implements Core Bluetooth to conform to Swift 6 strict concurrency checking. It is unsafe to dispatch the delegate events onto my own actor, as the passed in objects are presumably not thread-safe. What is the recommended concurrency safe way to implement Core Bluetooth in Swift 6 with strict concurrency checking enabled?
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Mar ’25
After the device wake ups, NEFilterDataProvider causes internet access issue intermittently
We have a NEFilterDataProvider extension that intercepts all TCP and UDP IPv4/6 traffic. At times just after wakeup from sleep, it causes internet access issues, such as showing "This site can't be reached" when opening websites. The traffic is not being dropped by the extension. According to the logs, the connection is being closed after approximately 4 minutes. During the issue, the flow logs are as follows: Flow 515129771 is connecting New flow: NEFlow type = stream, app = com.google.Chrome.helper... Detaching, ref count = 2 (logged after ~4 minutes) Sending close, how = 2 Removing from group 2, ref count = 2 Destroying, app tx 0, tunnel tx 0, tunnel rx 0 Closing reads, not closed by plugin Closing writes, not sending close Any suggestions on the possible cause and how to further debug it?
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Mar ’25
HealthKit: Real-Time Sleep Tracking with Heart Rate Data
I am trying to track a user's real-time sleep state using heart rate data, but I have encountered several issues: When using HKSampleQuery on the phone to fetch heart rate data, I can only retrieve data recorded before the app comes to the foreground or before it is terminated and restarted (see related issue: https://developer.apple.com/forums/thread/774953). I attempted to get data on the Apple Watch and send updates to the phone via Watch Connectivity. However, if I use WKExtendedRuntimeSession, although I can obtain data on the watch, once the watch screen goes off, it can no longer transmit data via Watch Connectivity to the phone (since I cannot guarantee the app will remain in the foreground when lying in bed). On the other hand, using HKWorkoutSession results in interference with the activity rings and causes the heart rate sensor to run too frequently, which I worry may affect the battery life of the watch. Is there an elegant solution for tracking a user's heart rate data for sleep monitoring?
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Apr ’25
CSSearchableItemAttributeSet is missing recordingYear
I'd like to set the recordingYear in my Spotlight File Importer extension but the property is missing from CSSearchableItemAttributeSet e.g. in the resulting in mdls I'd like to see: kMDItemRecordingYear = 2008; This would allow me to search in Finder by the recording year criteria. There is a recordingDate property and I tried setting it to Date that only has a year but it didn't work. It just resulted in this: kMDItemRecordingDate = "2008-01-01 00:00:00 +0000";
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Mar ’25
Issue with Sticker Pack Extension
I'm unable to have stickers show in messages even with a new iOS app and a sticker pack extension target. I do see the iMessage App Icon but after tapping it nothing shows and I see a warning: "Error creating the CFMessagePort needed to communicate with PPT" This was tested on simulator and on real device. Xcode 16.1 (16B40) iOS 18.1 & 18.2
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Mar ’25
Pencilkit custom pen
I want to create a brush similar to a fountain pen, with a three-dimensional feel to the strokes and a distinct tip. Alternatively, is it possible to achieve this by modifying the configuration parameters of a fountain pen brush?
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Mar ’25
WidgetKit And Picture rotation
I'm developing a widget with WidgetKit, and I'm having a problem: I need to click on an image, and when I click it triggers a network request, the image automatically rotates clockwise, and when the network ends, the image automatically stops rotating. How to do that? My current idea is to click on the image and await the call to the network request. Should Toggle be used for the control corresponding to the picture? Because Toggle has two states. Then there is how to do image rotation, did not find support API.
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Apr ’25
Universal Links: Is the 'paths' Array Deprecated in Favor of 'components' in AASA?
Hello! I'm working with universal links in my app and have configured the /.well-known/apple-app-site-association file. Currently, I use the paths array in this file to define URL routing rules. However, I’m struggling to find up-to-date documentation on the pattern syntax supported by the paths field. "paths": [ "/page/*", "NOT /page/*/subpage" ] Could someone clarify: Is the paths array still officially supported, or is it deprecated in favor of the newer components dictionary (as referenced here https://developer.apple.com/documentation/bundleresources/applinks/details-swift.dictionary/components-swift.dictionary)? If paths is still valid, where can I find documentation for its pattern-matching capabilities? I want to ensure my implementation aligns with Apple’s current best practices. Thank you!
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Mar ’25
Weather Notifications
I'm strugling about the way how to code notifications for my weather aplication. I use data from my server that receives weather changing values from my own weather station and want to notify user of my app when eg strong wind will blow or temperature go under eg 3℃ etc. The weather station has 8 sensors so there is sometimes a lot of data changing in particular minute that i set to parse data from server and notify user about it. But the notifications only works only when app is on and couple minutes after locking display. So please what could i use strategy for the app to works even when the app sleeps ?
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Mar ’25
Home screen Widget with dynamic options for configuration via App Intent - Slow
I am building a widget with configurable options (dynamic option) where the options are pull from api (ultimately the options are return from a server, but during my development, the response is constructed on the fly from locally). Right now, I am able to display the widget and able to pull out the widget configuration screen where I can choose my config option . I am constantly having an issue where the loading the available options when selected a particular option (e.g. Category) and display them on the UI. Sometime, when I tap on the option "Category" and the loading indicator keeps spinning for while before it can populate the list of topics (return from methods in NewsCategoryQuery struct via fetchCategoriesFromAPI ). Notice that I already made my fetchCategoriesFromAPI call to return the result on the fly and however the widget configuration UI stills take a very long time to display the result. Even worst, the loading (loading indicator keep spinning) sometime will just kill itself after a while and my guess there are some time threshold where the widget extension or app intent is allow to run, not sure on this? My questions: How can I improve the loading time to populate the dynamic options in widget configuration via App Intent Here is my sample code for my current setup struct NewsFeedConfigurationIntent: AppIntent, WidgetConfigurationIntent { static let title: LocalizedStringResource = "Configure News Topic Options" static let description = IntentDescription("Select a topic for your news.") @Parameter(title: "Category", default: nil) var category: NewsCategory? } struct NewsCategory: AppEntity, Identifiable { let id: String let code: String let name: String static let typeDisplayRepresentation: TypeDisplayRepresentation = "News Topic" static let defaultQuery = NewsCategoryQuery() var displayRepresentation: DisplayRepresentation { DisplayRepresentation(title: LocalizedStringResource(stringLiteral: name)) } } struct NewsCategoryQuery: EntityQuery { func entities(for identifiers: [NewsCategory.ID]) async throws -> [NewsCategory] { let categories = fetchCategoriesFromAPI() return categories.filter { identifiers.contains($0.id) } } func suggestedEntities() async throws -> [NewsCategory] { fetchCategoriesFromAPI() } } func fetchCategoriesFromAPI() -> [NewsCategory] { let list = [ "TopicA", "TopicB", "TopicC", ....... ] return list.map { item in NewsCategory(id: item, code: item, name: item.capitalized) } }
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Apr ’25
App Store Server Notification Issue
Hello, I am writing this because the behavior of the App Store Server Notification that our server receives is problematic in the Sandbox environment. I have two questions in total. When purchasing a Free Trial subscription, after receiving the SUBSCRIBED / INITAL_BUY Notification, DID_RENEW should be sent when it expires, but DID_FAIL_TO_RENEW/GRACE_PERIOD is sent. The EXPIRE Notification is sent after the subscription expires or DID_CHANGE_RENEWAL_STATUS/AUTO_RENEW_DISABLED is sent, but it does not arrive. The first problem is that I recently heard that automatic payments after a free trial require the user's consent via email. Is this the reason? If so, I am curious about how I can test it in the Sandbox environment. Is the second problem a bug?
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Apr ’25
iOS 18.3.1 - QLPreviewControllerView closing triggers AX Lookup problem - errorCode:1100 error:Permission denied portName:'com.apple.iphone.axserver' PID:1022
Since iOS 18.3.1, In lower iOS versions it works fine though. QLPreviewController shows a blank white screen instead of showing the document. Additionally, it does not display the 'Done' option at the top-right to close the view. Presenting the QLPreviewController works fine to display the document, but for the second time, it renders the blank white screen as described. While launching QLPreviewControllerView for the first time. I'm receiving the following message in the console and it displays the document. LaunchServices: store (null) or url (null) was nil: Error Domain=NSOSStatusErrorDomain Code=-54 "process may not map database" UserInfo={NSDebugDescription=process may not map database, _LSLine=72, _LSFunction=_LSServer_GetServerStoreForConnectionWithCompletionHandler} Attempt to map database failed: permission was denied. This attempt will not be retried. Closing the QLPreviewController with the help of the 'Done' option from top-right or swipe to close triggers the following message in the console. Connection to appex interrupted AX Lookup problem - errorCode:1100 error:Permission denied portName:'com.apple.iphone.axserver' PID:1022 ( 0 AXRuntime 0x00000001d2cd7758 _AXGetPortFromCache + 796 1 AXRuntime 0x00000001d2cdd02c AXUIElementPerformFencedActionWithValue + 700 2 UIKit 0x0000000258cdf488 7F0274D9-D3C9-3193-B606-1C74BE53B86C + 1537160 3 libdispatch.dylib 0x0000000101bb888c _dispatch_call_block_and_release + 32 4 libdispatch.dylib 0x0000000101bba578 _dispatch_client_callout + 20 5 libdispatch.dylib 0x0000000101bc2454 _dispatch_lane_serial_drain + 840 6 libdispatch.dylib 0x0000000101bc325c _dispatch_lane_invoke + 408 7 libdispatch.dylib 0x0000000101bd06fc _dispatch_root_queue_drain_deferred_wlh + 328 8 libdispatch.dylib 0x0000000101bcfd0c _dispatch_workloop_worker_thread + 580 9 libsystem_pthread.dylib 0x0000000225ea4680 _pthread_wqthread + 288 10 libsystem_pthread.dylib 0x0000000225ea2474 start_wqthread + 8 ) Trying to open he document again, Ultimately results in the white blank screen to be displayed with no options to close. It displays the Navigation bar only for the fraction of time. Leading users to force close the app and start again.
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273
Mar ’25
Unexpected partition property set on cookies in iOS 18.4 beta
Apology for repost. I needed to fix the tags for original thread. https://developer.apple.com/forums/thread/777159 On iOS 18.3, I noted that partition "HTTPCookiePropertyKey: StoragePartition" is not observed to be set for cookies returned from the wkwebview cookie store. Now on 18.4 beta 4 we are now seeing those same cookies are populated with a partition property. Is there documentation for this change? Is it intended to be suddenly populated in 18.4? Now that partition property is set, HTTPCookieStorage.shared.cookies(for: serverUri) doesn't seem to return the expected cookies correctly. For context, we are using the cookies extracted from wkwebview, setting them in HTTPCookieStorage.shared and using URLSession to make network calls outside the webivew. Works fine once I forcefully set partition on the cookie to nil. More details on what the cookie looks like here: https://feedbackassistant.apple.com/feedback/16906526 Hopefully this is on your radar?
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Mar ’25
Diagnosing iOS disc contention impacting networking?
When my app launches, it makes maybe 9 or so network requests to load initial data. It also reads some data from disc. Sporadically, I'm seeing an issue where some of the network requests succeed, but anything involving reading from disc does not load immediately. I'm able to move around in the app, tap buttons, swap tabs, swipe pages, so my main actor isn't stuck. Other data that don't involve disc reading / writing is also blank. About 2 minutes in, suddenly everything loads (both stuff from disc and stuff from the network), nearly instantly, the way it should have done when the app launched. Server logs show more initial network requests succeed than we can see data loaded in the app, and then about 2 minutes later, there's a flood of the rest of the requests which then succeed. The responses to some of these initial network requests cause us to make other network requests, and the sever sees some of those start right away. However, other consequences of these first requests are to touch the disc (to search for manually-cached data), and anything that is supposed to happen after that does not succeed until the 2 minute mark. But what bothers me is some things in the app which don't touch the disc also seem to have successful network requests. I'm seeing it on an iPhone 14Pro running iOS 18.2.1, with 607 GB of disc space available. When I take screenshots of the loading screens in my app during the apparent freeze, the clock in the screenshots are right - they reflect the clock at the moment I took the screenshot, but the EXIF data in all dozen or so images shows the exact second 2 minutes later when the server gets the resulting flood of network requests. Screenshots taken after the freeze is over have exif timestamps that match the screenshots, as short as 5 seconds after the freeze ends. The screenshot file names, though sequential, are out of order. for instance, some screenshots from 12:58 have file names numbered after screenshots taken at 12:59. but not all are out of order. This seems like disc contention has spread outside the app, and is impacting the system writing the images to disc. How do I diagnose a cause for this? How does disc contention affect the networking? I have caching turned off for my network requests. We only have a manual image cache, but I don't know how that would stall the display of data that should fetch and display without attempting to hit the image cache. This happens maybe a couple of times a day for some people, maybe once every couple of weeks for others, but of course, it never when we're trying to debug it.
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Mar ’25
Mac App Crashing with Illegal Instructions
I have made a Swift App for MacOS 15 under XCode 16.3, which runs fine. I also want to run it under the previous MacOS 14. Unfortunately it crashes without even starting up (it does not even reach the first log output statement on the first view) The crash reason is Crashed Thread: 0 Dispatch queue: com.apple.main-thread Exception Type: EXC_BAD_INSTRUCTION (SIGILL) Exception Codes: 0x0000000000000001, 0x0000000000000000 Termination Reason: Namespace SIGNAL, Code 4 Illegal instruction: 4 Terminating Process: exc handler [2970] I have set the miminium deployment to MacOS 14.0 but to no effect. The XCode machine is a MacOS 15.4 on Arm M3 and the target machine is MacOS 14.7.5 on Intel (MacBook Air) I think it might be related to the compiler and linker settings.
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Apr ’25
Crash: Fatal Exception: NSInvalidArgumentException -[NWConcrete_nw_protocol_options copyWithZone:]: unrecognized selector sent to instance
Hi there, can some one help how to debug this crashes? where I can start to find root causes of this crashes. I've got lot of these NSInvalidArgumentException crashes in myapp last version I have no idea how to reproduce these issues since it doesn't point to any specific code on myapp, so I don't know how to start Fatal Exception: NSInvalidArgumentException -[NWConcrete_nw_protocol_options copyWithZone:]: unrecognized selector sent to instance 0x283391d60 Fatal Exception: NSInvalidArgumentException -[NSConcreteHashTable lengthOfBytesUsingEncoding:]: unrecognized selector sent to instance 0x281d4cbe0 Fatal Exception: NSInvalidArgumentException -[_NSXPCConnectionExportedObjectTable lengthOfBytesUsingEncoding:]: unrecognized selector sent to instance 0x2829d11d0 Fatal Exception: NSInvalidArgumentException -[OS_dispatch_group lengthOfBytesUsingEncoding:]: unrecognized selector sent to instance 0x281a11900 Fatal Exception: NSInvalidArgumentException -[__NSCFData getBytes:maxLength:usedLength:encoding:options:range:remainingRange:]: unrecognized selector sent to instance 0x28210e440 Fatal Exception: NSInvalidArgumentException -[_NSCoreTypesetterLayoutCache copyWithZone:]: unrecognized selector sent to instance 0x283bbc730 Thanks com.kitabisa.ios_issue_dd3c71c96cddb5bb99874640746439d6_crash_session_de9bb41c2b7e43fa9ccfc42e0f649aa3_DNE_0_v2_stacktrace.txt
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Mar ’25