An app is hanging randomly on app launch, after looking into it, it appears it's hanging on a call to UNUserNotificationCenter.current() calls. I say this because there's logging and the sometimes the last line logged is prior to a call to UNUserNotificationCenter() I have a hang log (.ips file) rom the iPhone and at the bottom it says this. I presume blockingThreadInfo is talking about the thread being blocked, and it identifies the topBlockingProcess as user notifications. "blockingThreadInfo" : { "topBlockingProcess" : "usernotificationsd", The following is the code, why would this code cause a hang? The problem occurs when there's lots of notifications that have been posted i.e. something like 100. [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(appBecameActive) name: UIApplicationDidBecomeActiveNotification object:nil]; @objc func appBecameActive() { method1() method2() } @objc func method1() { UNUserNotificationCenter.current().getDeliveredNotifications { notifications in if SettingsManager.isProductionFinalBuild() == false { // Log notification center contents for notification in notifications { let title = notification.request.content.title let targetId = notification.request.content.targetContentIdentifier let threadId = notification.request.content.threadIdentifier let categoryIdentifer = notification.request.content.categoryIdentifier let identifier = notification.request.identifier let info = notification.request.content.userInfo Logger.trace("Previously delivered notification: title: \(title) identifier: \(identifier) threadId: \(threadId) category: \(categoryIdentifer) target id: \(String(describing: targetId)) userInfo: \(info)") } let matchchingNotifications = notifications.filter({ $0.request.identifier == kMdnAccountNotFoundNotificationIdentifier }) UNUserNotificationCenter.current().removeDeliveredNotifications(withIdentifiers: [kMdnAccountNotFoundNotificationIdentifier]) } } func method2() { UNUserNotificationCenter.current().removePendingNotificationRequests(withIdentifiers: [Constants.kWhatsNewNotificationIdentifier]) UNUserNotificationCenter.current().removeDeliveredNotifications(withIdentifiers: [Constants.kWhatsNewNotificationIdentifier]) }

I've installed the same developer certificate onto three different Macs. When viewed in the keychain (or in Xcode) on one Mac it says its revoked, on another it says its not trusted, but on a third there's no issue reported. How could there be a difference between the three Macs? (Both Macs have the date/time set to be the same). Can 3rd party software, VPNs etc. interfere in this at all?

I'm experimenting with creating a Framework and have noticed a difference when dragging and dropping/or adding it into a project. If I create a brand new app and add the Framework then Xcode automatically creates a "Frameworks, Libraries, and Embedded" section within the app settings general section. The framework gets added with a default embed setting of Do Not Embed, which can be changed to Embed & Sign or Embed without Signing. However, I have an existing app which doesn't already contain a "Frameworks, Libraries, and Embedded section" section, if I add the framework to that app then Xcode is NOT creating a "Frameworks, Libraries, and Embedded section", instead it is adding the framework to the existing "Link Libraries with Binary" section. However this section does not have the embed box that a "Frameworks, Libraries, and Embedded" section has. Why is there this difference? And how can you choose whether to sign or not the framework if its been added by Xcode to the "Link Binary With Libraries" section rather than the "Frameworks, Libraries, and Embedded" section. I am finding that when Xcode adds the framework to the "Link Binary With Libraries" section and the app is run then there are run time errors about the framework not being able to be found, this does not occur when it gets added to the "Frameworks, Libraries, and Embedded" section. Is it possible to there explicitly create a "Frameworks, Libraries, and Embedded" section? I can't find one, nor can I get Xcode to create one, it keeps insisting on adding the Framework to "Link Binary With Libraries", which results in the app not running.

Our company is going to develop an iOS library of functionality for inclusion in several apps, some of the apps will be developed in-house and some externally. When the library is included in external apps the source code shouldn't be visible. When the library is included in internal apps, having the option to view and step through the code within the library will be invaluable for debugging. How could I set things up so that two forms of the library can be easily generated - one exposing source code and the other not. Ideally they should be capable of being incorporated within the apps in the same manner regardless of if the source code is expose or not Is that possible? I looked at Swift Packages, but it seems its for distribution of source code only, and its not possible to hide the source code. However, conversely, a framework only contains binary and no source code. Is there any other option?

If an app with a Message Filter Extension is run on an iPhone with iOS 18 installed then there's no logging output to the console (using print or NSLog), however there is logging in all previous versions of OS. Being able to view logging at run time for this component is essential as a debugging aid to see, for example, if the extension launches, if a text is handled locally or deferred to the network, to see if there's a network error, to examine the server response etc. Is there a specific reason it was disabled or is it accidental? Thank you

I've got a 2023 M2 MacBook Pro and used to get great battery life out of it (> 6 hours when using it for development purposes). Now however, all of a sudden, that has dropped off a cliff, and the only thing that has changed is Xcode 16 has appeared. As I'm compiling a project I can literally see the % amount of the battery charge remaining tick down in front of my eyes as I watch. I just compiled a project twice and during that time the battery dropped from from %89 to %79 and Xcode is listed as a culprit using significant battery drain. Anybody else noticed anything similar? Anything that can be done to to decrease Xcode's battery drain?

I've got a bit of code which is making a HTTPS GET request. On an iPhone it runs as expected, however when running on the simulator there's a HTTP 400 response. I've logged the url and my http headers that I'm adding, and in both cases they are identical for the simulator and iPhone (there is no http body content). Therefore, as everything is identical, I'm wondering how it could work with hardware and not with the simulator? Does the OS append any additional HTTP headers before the request goes out (such as User-Agent for example) and might those be different between iPhone/simulator?

If a new (iOS) project is created in Xcode then a default set of deployment targets and values gets automatically created and set as follows: If the iPad, Mac, and Apple Vision supported destinations are deleted from the Xcode general section, these deployment targets still remain. If the app is then built using Xcode 16 and uploaded to TestFlight/App Store then the following issue is reported: TMS-90899: Macs with Apple silicon support issue - The app isn‘t compatible with the provided minimum macOS version of 11.0. Why is XCode populating the macOS deployment target with a value that that results in this issue? Why is Xcode even populating all 6 of these targets at all when its for an iOS app and hence 5 of them are redundant? Can the macOS deployment value simply be increased to silence this issue? Or can these that aren't relevant to iOS be deleted (if so how)? TIA

Over the past few weeks I've seen several people mention pushes sent via the sandbox haven't been getting delivered. Today I'm also seeing that (though pushes sent via production are fine). So it would appear to be down again. What's going on recently, any reason it's so unstable these last few weeks?

I want to release a Framework F, containing several other frameworks (such as Realm, Appetitive, Cocoalumberjack, PhoneNumberKit) for use by app A. According to this article: https://medium.com/@bittudavis/how-to-create-an-umbrella-framework-in-swift-ca964d0a2345 They write, without referencing a source: "Although Apple discourage creating umbrella framework". Is that true, do Apple discourage umbrella frameworks, if so why and is it a very strong discourage or a mild one? If not discouraged, then how can this be achieved with Xcode 16? I've been attempting to follow a few tutorial to achieve this, such as https://medium.com/john-lewis-software-engineering/adding-a-third-party-framework-inside-a-first-party-framework-in-xcode-3ba58cfd08da however so far without any success. This last article mentions the Link Binary With Libraries section, which doesn't exist in Xcode 16. There's the Frameworks, Libraries, and Embedded Content section where I have been attempting to add the frameworks into my Framework F (choosing Embed without Signing). I'm able to successfully build Framework F, but when app A attempts to use it (adding F to the Frameworks, Libraries, and Embedded Content section with option embed and sign, or embed and don't sign, makes no difference) then I get run time errors about the umbrellaed frameworks not being able to be found.

If I define some values in an .xcconfig then I can use those to supply a value to an element within Info.plist, but if I try to do the same for a .plist with any other name then it doesn't work. Is this some sort of hard-coded constraint? (I can't move the elements out of the custom .plist into Info.plist as its being read by a 3rd party framework)

When a user gets added to the Apple developer account, its possible to specify specific or all apps. However if they are added as a developer, they don't have access to the certificates/profiles etc. for the app(s). The only way to do that is to give them app manager status and then its possible to tick the box that grants access to the certs/profiles. But giving them manager status rather than developer status gives them access to all apps, not a limited sub section. Is there anyway to add somebody to the developer account with elevated privileges which are restricted to just a single app?

Hello the documentation for message filtering has been offline for a few days now, is it possible to get it back, or is there somewhere else it can be viewed in the meanwhile? https://developer.apple.com/documentation/sms_and_call_reporting/sms_and_mms_message_filtering (I just chose topic/tags at random, there aren't any relevant for this)

If I run an app with a Message Filter Extension on a handset with iOS 18.2 then it runs fine, however if I run the exact same app with no changes on a different phone which has iOS 17.6.1 installed then the following error occurs when the extension is enabled within Settings: dyld[631]: Symbol not found: _$sSo40ILMessageFilterCapabilitiesQueryResponseC14IdentityLookupE21promotionalSubActionsSaySo0abI6ActionVGvs

I've got an app with several app extensions (call extension, action extension, notification service extension, message filtering extension, notification content extension). If I need to interactively debug these then I can select the scheme and run the extension within Xcode for all of them except for the notification content extension, with that I get an error dialog summary saying: Failed to install the app on the device / The provided item to be installed is not of a type that CoreDevice recognizes. Which when expanded has the blumpf posted below. Why can I not run the notification content extension, when I can run any other type of app extension? Failed to install the app on the device. Domain: com.apple.dt.CoreDeviceError Code: 3002 Failure Reason: The provided item to be installed is not of a type that CoreDevice recognizes. User Info: { DVTErrorCreationDateKey = "2024-12-27 16:39:54 +0000"; IDERunOperationFailingWorker = IDEInstallCoreDeviceWorker; NSURL = "file:///Users/Me/Library/Developer/Xcode/DerivedData/XFinity-celiagrvtevxcagztrguseawvjkl/Build/Products/Debug.Ceq.QA-iphoneos/NotificationContentExtension.appex"; } -- Event Metadata: com.apple.dt.IDERunOperationWorkerFinished : { "device_identifier" = "00008101-00115D623460001E"; "device_isCoreDevice" = 1; "device_model" = "iPhone13,3"; "device_osBuild" = "18.2 (22C152)"; "device_platform" = "com.apple.platform.iphoneos"; "device_thinningType" = "iPhone13,3"; "dvt_coredevice_version" = "397.28"; "dvt_coresimulator_version" = "993.7"; "dvt_mobiledevice_version" = "1759.40.2.100.1"; "launchSession_schemeCommand" = Run; "launchSession_state" = 1; "launchSession_targetArch" = arm64; "operation_duration_ms" = 7; "operation_errorCode" = 3002; "operation_errorDomain" = "com.apple.dt.CoreDeviceError"; "operation_errorWorker" = IDEInstallCoreDeviceWorker; "operation_name" = IDERunOperationWorkerGroup; "param_debugger_attachToExtensions" = 0; "param_debugger_attachToXPC" = 1; "param_debugger_type" = 1; "param_destination_isProxy" = 0; "param_destination_platform" = "com.apple.platform.iphoneos"; "param_diag_113575882_enable" = 0; "param_diag_MainThreadChecker_stopOnIssue" = 0; "param_diag_MallocStackLogging_enableDuringAttach" = 0; "param_diag_MallocStackLogging_enableForXPC" = 1; "param_diag_allowLocationSimulation" = 0; "param_diag_checker_tpc_enable" = 1; "param_diag_gpu_frameCapture_enable" = 0; "param_diag_gpu_shaderValidation_enable" = 0; "param_diag_gpu_validation_enable" = 0; "param_diag_guardMalloc_enable" = 0; "param_diag_memoryGraphOnResourceException" = 0; "param_diag_mtc_enable" = 0; "param_diag_queueDebugging_enable" = 1; "param_diag_runtimeProfile_generate" = 0; "param_diag_sanitizer_asan_enable" = 0; "param_diag_sanitizer_tsan_enable" = 0; "param_diag_sanitizer_tsan_stopOnIssue" = 0; "param_diag_sanitizer_ubsan_enable" = 0; "param_diag_sanitizer_ubsan_stopOnIssue" = 0; "param_diag_showNonLocalizedStrings" = 0; "param_diag_viewDebugging_enabled" = 1; "param_diag_viewDebugging_insertDylibOnLaunch" = 1; "param_install_style" = 2; "param_launcher_UID" = 2; "param_launcher_allowDeviceSensorReplayData" = 0; "param_launcher_kind" = 0; "param_launcher_style" = 0; "param_launcher_substyle" = 2; "param_runnable_appExtensionHostRunMode" = 0; "param_runnable_productType" = "com.apple.product-type.app-extension"; "param_structuredConsoleMode" = 1; "param_testing_launchedForTesting" = 0; "param_testing_suppressSimulatorApp" = 0; "param_testing_usingCLI" = 0; "sdk_canonicalName" = "iphoneos18.2"; "sdk_osVersion" = "18.2"; "sdk_variant" = iphoneos; } -- System Information macOS Version 14.7 (Build 23H124) Xcode 16.2 (23507) (Build 16C5032a) Timestamp: 2024-12-27T08:39:54-08:00