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Interactive Live Activity Bug in iOS 18 - perform not called
In iOS 18 (beta 1-4) when you set openAppWhenRun = false in your AppIntent of your live activity the perform function never gets called. In iOS 16 and 17 my live activities work. I have downloaded other apps and in their live activities any button tab which doesn´t open the app is also doing nothing in iOS 18. Has anyone got this working? Any comments from an Apple engineer on this?
4
2
1.5k
Apr ’25
Device Activity Report Not showing any information
All After about 20 hours straight of working on this and having scrapped it twice I am realizing I should have asked everyone here for help. I am just trying to get device activity report extension to work inside an existing app. I have been heavily using family controls, managedsettings and deviceactivity and decided it would be nice to output some of the app usage so the User (parent) can see their children's app usage. I installed the target via xcode, confirmed group names match, and think I have it embedded correctly but when I run the app and call the view within the extension to show minutes used by any apps it just shows no time has been used. In addition, when I put print statements into the extension they do not show up in console. I have confirmed the main app target->Build phases->Link binary with Libraries has: ManagedSettings.framework FamilyControls.Framework DeviceActivity.framework I have confirmed in xcode that the main app target->Build phases -> Embed Foundation Extensions has: ShieldConfiguration.appex ShieldActionExtension.appex DeviceActivityMonitor.appex I have confirmed in xcode that the main app target->Build phases-> Embed ExtensionKit Extensions has: UsageReportExtension.appex I have used the apps I am trying to show data for extensively in the last 36 hours. Here is my UsageReportExtension info.plist EXAppExtensionAttributes EXExtensionPointIdentifier com.apple.deviceactivityui.report-extension .entitlement com.apple.developer.family-controls com.apple.security.application-groups group.com.jrp.EarnYourTurnMVP2.data Here is the file in the app (timebankview.swift) calling the extension/showing the extension view(AppUsageReportView.swift) import DeviceActivity import ManagedSettings struct TimeBankView: View { @EnvironmentObject private var appState: AppState @State private var reportInterval: DateInterval = { let calendar = Calendar.current let now = Date() let yesterdayDate = calendar.date(byAdding: .day, value: -1, to: now) ?? now return DateInterval(start: yesterdayDate, end: now) }() private var reportFilter: DeviceActivityFilter { let selection = appState.screenTimeController.currentSelection return DeviceActivityFilter( segment: .daily(during: reportInterval), users: .children, devices: .all, applications: selection.applicationTokens, categories: selection.categoryTokens // webDomains: selection.webDomains // Add if needed ) } var body: some View { ZStack { Color.appTheme.background(for: appState.isParentMode) .edgesIgnoringSafeArea(.all) ScrollView { VStack(spacing: 20) { Text("Time Bank") DeviceActivityReport(.childUsageSummary, filter: reportFilter) Here is AppUsageReportView.swift import SwiftUI struct AppUsageReportView: View { let config: DetailedAppUsageConfiguration // Use the detailed config var body: some View { VStack { Text("App Usage Details") Text("Total Screen Time: \(config.totalDurationFormatted)") if config.applicationsUsed.isEmpty { Text("No specific app usage data available for the selected period/filter.") } else { Text("Apps Used:") List { ForEach(config.applicationsUsed) { appInfo in HStack { Image(systemName: "app.dashed") Text(appInfo.appName) .lineLimit(1) Text(appInfo.durationFormatted) Here is AppUsageReportScene.swift: import SwiftUI import ManagedSettings struct AppInfo: Identifiable, Hashable { let id = UUID() let appName: String let durationFormatted: String } struct DetailedAppUsageConfiguration { var totalDurationFormatted: String = "Calculating..." var applicationsUsed: [AppInfo] = [] } struct AppUsageReportScene: DeviceActivityReportScene { let context: DeviceActivityReport.Context = .childUsageSummary let content: (DetailedAppUsageConfiguration) -> AppUsageReportView func makeConfiguration(representing data: DeviceActivityResults<DeviceActivityData>) async -> DetailedAppUsageConfiguration { var config = DetailedAppUsageConfiguration() var appDurations: [String: TimeInterval] = [:] var totalAggregatedDuration: TimeInterval = 0 let formatter = DateComponentsFormatter() formatter.allowedUnits = [.hour, .minute, .second] formatter.unitsStyle = .abbreviated formatter.zeroFormattingBehavior = .pad var segmentCount = 0 var categoryCount = 0 var appCount = 0 for await activityData in data { // Check segments var tempSegmentCount = 0 for await segment in activityData.activitySegments { segmentCount += 1 tempSegmentCount += 1 totalAggregatedDuration += segment.totalActivityDuration var tempCategoryCount = 0 for await categoryActivity in segment.categories { categoryCount += 1 tempCategoryCount += 1 var tempAppCount = 0 for await appActivity in categoryActivity.applications { appCount += 1 tempAppCount += 1 let appName = appActivity.application.localizedDisplayName ?? "Unknown App" let duration = appActivity.totalActivityDuration appDurations[appName, default: 0] += duration }}} } config.totalDurationFormatted = formatter.string(from: totalAggregatedDuration) ?? "N/A" config.applicationsUsed = appDurations .filter { $0.value >= 1 .map { AppInfo(appName: $0.key, durationFormatted: formatter.string(from: $0.value) ?? "-") } .sorted { lhs, rhs in let durationLHS = appDurations[lhs.appName] ?? 0 let durationRHS = appDurations[rhs.appName] ?? 0 return durationLHS > durationRHS } if !config.applicationsUsed.isEmpty { for (index, app) in config.applicationsUsed.enumerated() { } } else { } return config }} UsageReportExtension.swift struct UsageReportExtension: DeviceActivityReportExtension { init() { print("🚀 [UsageReportExtension] Extension initialized at \(Date())") print("🔍 [UsageReportExtension] Process info: \(ProcessInfo.processInfo.processName) PID: \(ProcessInfo.processInfo.processIdentifier)") } var body: some DeviceActivityReportScene { let _ = print("📊 [UsageReportExtension] Building report scenes at \(Date())") TotalActivityReport { totalActivity in print("🕰️ [TotalActivityReport] Creating view with data: \(totalActivity)") return TotalActivityView(totalActivity: totalActivity) }}}
3
0
403
Apr ’25
When is Apple ever going to release an updated screensaver Xcode template?
Since legacyScreenSaver is still the thing running screensavers we make, and it's still buggy, why won't they give us a new template for building screensavers that run in the new engine? And hopefully they don't require them to blend in with the desktop, because most of us don't want that. A wallpaper is a wallpaper, and a screensaver is a screensaver.
3
1
207
Oct ’25
Click on UITextView or UITextField to crash
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFString timeIntervalSinceReferenceDate]: unrecognized selector sent to instance 0x115fadbc0' *** First throw call stack: (0x1940bd8c8 0x1910097c4 0x194159838 0x19403a4f8 0x1940423a0 0x1e42cb9a8 0x1e42ce220 0x106f02c08 0x1080a461c 0x1080be2b0 0x1080acb2c 0x1080ad7b4 0x1080b9b00 0x1080b91a4 0x1eecdb3b8 0x1eecda8c0) libc++abi: terminating due to uncaught exception of type NSException InputAnalytics called timeIntervalSinceReferenceDate in dispatch_sync.The display issue of the call stack occurs in two stages: keyboard input analysis and folding the keyboard.After adding protection to NSString, it can function normally, but I want to know the reason. #import "NSString+Safe.h" @implementation NSString (Safe) - (NSTimeInterval)timeIntervalSinceReferenceDate { return 0; } - (NSTimeInterval)timeIntervalSinceDate:(NSDate *)date { return 0; } @end
3
0
168
Oct ’25
Activating a Container App from a Custom Keyboard Extension to Enable Continuous Voice Input While Preserving the Original Typing Context
Project Background: I am developing a third-party custom keyboard for iOS whose primary feature is real-time voice input. In my current design, responsibilities are split as follows: 1. The container (main) app is responsible for: Audio recording Speech recognition (ASR) 2. The keyboard extension is responsible for: Providing the keyboard UI Initiating the voice input workflow Receiving transcription results via an App Group Inserting recognized text into the active text field using textDocumentProxy.insertText(_:) Intended User Flow The intended workflow is: The user is typing in a third-party app (for example, WeChat) using my custom keyboard. The user taps a “Voice Input” button in the keyboard extension. The keyboard extension activates the container app so that audio recording and ASR can begin. After recording has started, control returns to the original app where the user was typing. The container app continues running in the background, maintaining active audio recording and ASR. Recognized text is continuously streamed back to the keyboard extension and inserted into the current cursor position in real time. Observed Industry Behavior Some popular third-party keyboards on iOS, such as WeChat Keyboard and Doubao Keyboard, appear to provide a similar user experience in which: Voice input can be initiated directly from the keyboard while typing in another app. The user remains (or returns) in the original typing context after voice input starts. Speech recognition continues and text is streamed into the active text field without interrupting the typing experience. I would like to better understand how this type of workflow aligns with iOS platform capabilities and supported APIs. My Questions Is it supported by iOS public APIs for a custom keyboard extension to activate its container app to start audio recording and ASR, then return to the original host app while the container app continues recording and performing ASR in the background? If this workflow is not supported, are there any Apple-recommended or supported alternative architectures for achieving a similar user experience, especially when audio recording and ASR logic are currently implemented in the container app rather than in the keyboard extension? Goal My goal is to design a solution that is fully compliant with iOS public APIs and platform constraints, while providing a real-time voice input experience comparable to existing third-party keyboards on the platform. Any guidance on supported APIs, recommended architectures, or relevant documentation would be greatly appreciated.
3
0
164
Jan ’26
Alarms scheduled using AlarmKit is not reliable
The alarms that I am scheduling using alarmKit is not reliable at all, especially in beta 8 (Used to have this issue in previous betas, But they were inconsistent). The alarm fires anywhere after 5 mins to 45 mins from the actual scheduled time. I'll share the relevant code block here in case if it is me who is doing something wrong. This code block doesn't throw any errors and I am also able to see the scheduled alarms when I query them. The issue is with alarms not firing on the specified time let alert = AlarmPresentation.Alert( title: "Wakey Wakey!", stopButton: .init(text: "stop", textColor: .red, systemImageName: "stop.fill") ) let presentation = AlarmPresentation(alert: alert) let attributes = AlarmAttributes<CountDownAttribute>( presentation: presentation, metadata: .init(), tintColor: .orange ) let schedule = Alarm.Schedule.fixed(alarmTime) let config = AlarmManager.AlarmConfiguration( schedule: schedule, attributes: attributes ) let id = UUID() do { let alarm = try await AlarmManager.shared.schedule(id: id, configuration: config) print("Alarm set successfully for \(alarmTime) - \(alarm)") } catch { print("Failed to schedule alarm: \(error)") }
3
0
219
Sep ’25
Need to check Call Status without using CallKit
My app requirement is to check that User is on call while doing transaction. If user on call then we need to show Caution alert. For this requirement we used CallKit to detect Call status and it's working fine but recently Apple has rejected the application because of Callkit that is banned in China. Could you please provide any solution to check the Call Status only.
3
0
271
May ’25
Add 'PDF Services' symlink in ~/Library directory in SwiftUI macOS Catalyst application
I am trying to port my sandboxed macOS app completely over to iOS using a Catalyst target. In my macOS app, I use 'SwiftySandboxFileAccess' package to add a symlink to '~/Library/PDF Services' so that the 'share to my app' menuItem shows up in the macOS Print Panel (in the PDF menu). It is critical for the function of my app to have this work on macOS. In the Catalyst target, I am having problems gaining access to '~/Library'. I have tried having the user select the folder, but the picker always returns 'canceled'. I have a test app that illustrates this. The test app tries to coax the user into selecting the library folder and then it is supposed to bookmark the location, but I am unable to get this far. As an aside, macOS should probably automatically add an entry to the Print Panel when the app includes PDF as a document type in XCode; it would save a lot of hassle and avoid having to go outside of the sandbox. However, I cannot wait for that. Hopefully someone can help. Download Test App from iCloud (If you have problems downloading the file, it might be because of some iCloud share setting that I am not aware of. Just tell me and I'll figure something out.)
3
0
130
Jan ’26
Regarding network interface name with dual SIM iPhone
I investigated what network interface names are assigned to carrier networks on a dual SIM iPhone by examining the output of getifaddrs(). (An part of the program used for this is provided below.) ////////////// struct ifaddrs *interfaces = NULL; struct ifaddrs *an_interface = NULL; if (0 == getifaddrs(&interfaces)) { an_interface = interfaces; while (an_interface != NULL) { if( an_interface->ifa_addr->sa_family == AF_INET) { NSString* name = [NSString stringWithUTF8String:an_interface->ifa_name]; NSLog(@"Interface name is: %@", name); } an_interface = an_interface->ifa_next; } } freeifaddrs(interfaces); In this investigation, it appeared that the interface name for the sXGP SIM selected under "iPhone > Settings > Cellular > Cellular Data" was always "pdp_ip0". (A screenshot of "Cellular Data" is provided below. this is sample of sXGP selected )" [QUESTION] Is the SIM selected in Settings of iPhone always assigned to "pdp_ip0"? [BACKGROUND] I am developing a VoIP application and opening sockets by specifying IP addresses for communication. On a dual SIM iPhone, multiple networks (IP addresses) are visible. Therefore, I need to determine which network to use. My question is whether I can reliably make this decision based on the network interface name. If the SIM selected in Settings is always assigned to "pdp_ip0", I intend to open the socket using the IP address of "pdp_ip0". Alternatively, should I use a different method to select the appropriate network interface?
3
0
248
Oct ’25
DeviceActivity Report Extension cannot pass App Store Connect validation without becoming un-installable on device
I'm running into a contradictory requirement involving the DeviceActivity Report extension (com.apple.deviceactivityui.report-extension) that makes it impossible to both: upload the app to App Store Connect, and install the app on a physical device. This creates a complete catch-22. 📌 Overview My extension: Path: Runner.app/PlugIns/LoADeviceActivityReport.appex Extension point: com.apple.deviceactivityui.report-extension Implementation (SwiftUI): import SwiftUI import DeviceActivity @main struct LoADeviceActivityReport: DeviceActivityReportExtension { var body: some DeviceActivityReportScene { // ... } } This is the standard SwiftUI @main DeviceActivityReportExtension template. 🟥 Side A — iOS runtime behavior (device installer) If I add either of these keys to the extension's Info.plist: NSExtensionPrincipalClass NSExtensionMainStoryboard then the app cannot be installed on a real iPhone/iPad. The device installer fails with: Error 3002 AppexBundleContainsClassOrStoryboard NSExtensionPrincipalClass and NSExtensionMainStoryboard are not allowed for extension point com.apple.deviceactivityui.report-extension. To make the app install and run, I must remove both keys completely. This leaves the extension Info.plist like: NSExtension NSExtensionPointIdentifier com.apple.deviceactivityui.report-extension With this, the app installs and runs correctly. 🟥 Side B — App Store Connect upload validator However, when I upload the IPA with the runtime-correct Info.plist, App Store Connect rejects it: State: STATE_ERROR.VALIDATION_ERROR (HTTP 409) Missing Info.plist values. No values for NSExtensionMainStoryboard or NSExtensionPrincipalClass found in extension Info.plist for Runner.app/PlugIns/LoADeviceActivityReport.appex. So ASC requires that at least one of those keys be present. 💥 The catch-22 If I add PrincipalClass / MainStoryboard: ✔ App Store Connect validation passes ❌ But the app can NOT be installed on any device (Error 3002) If I remove PrincipalClass / MainStoryboard: ✔ The app installs and runs correctly ❌ ASC rejects the upload with “Missing Info.plist values” There is currently NO Info.plist configuration that satisfies both: Runtime: "NSExtensionPrincipalClass and NSExtensionMainStoryboard are not allowed." App Store Connect: "You must include NSExtensionPrincipalClass or NSExtensionMainStoryboard." 📌 Expected behavior For SwiftUI @main DeviceActivityReportExtension, the documentation and examples suggest the correct configuration is: NSExtensionPointIdentifier com.apple.deviceactivityui.report-extension with no principal class or storyboard at all. If that is correct for runtime, ASC seems to need updated validation rules for this extension type. ❓My Questions What is the officially correct Info.plist configuration for a SwiftUI DeviceActivityReportExtension? Should principal class / storyboard not be required for this extension type? Is this a known issue with App Store Connect validation? Is there currently a workaround that allows: installation on device and successful App Store Connect upload, without violating runtime restrictions?
3
2
249
Dec ’25
ios18 crash reason: '*** -[__NSArrayM insertObjects:count:atIndex:]: attempt to insert nil object from objects[126976]'
Recently, my application has been receiving a lot of crashes every day, appearing on the iOS18 system. I can't find where the problem is and how can I solve it? Code Type: ARM-64 (Native) Role: Foreground Parent Process: launchd [1] Date/Time: 2025-03-10 14:55:49.541 +0800 OS Version: iOS 18.3.1 (22D72) Report Version: 104 Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x00000000 at 0x0000000000000000 Triggered by Thread: 1 Application Specific Information: *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[__NSArrayM insertObjects:count:atIndex:]: attempt to insert nil object from objects[126976]' Thread 0: 0 libsystem_kernel.dylib 0x00000001e95c4788 mach_msg2_trap + 8 1 libsystem_kernel.dylib 0x00000001e95c7e98 mach_msg2_internal + 80 2 libsystem_kernel.dylib 0x00000001e95c7db0 mach_msg_overwrite + 424 3 libsystem_kernel.dylib 0x00000001e95c7bfc mach_msg + 24 4 CoreFoundation 0x0000000197ee3804 0x197e6d000 + 485380 5 CoreFoundation 0x0000000197ee2eb0 0x197e6d000 + 482992 6 CoreFoundation 0x0000000197f35284 CFRunLoopRunSpecific + 588 7 GraphicsServices 0x00000001e51a14c0 GSEventRunModal + 164 8 UIKitCore 0x000000019aa7e674 0x19a690000 + 4122228 9 UIKitCore 0x000000019a6a4e88 UIApplicationMain + 340 10 MyApp 0x0000000102dbfd70 main + 104 11 (null) 0x00000001be18dde8 0x0 + 7484268008 Thread 1 name: com.apple.uikit.xpc-service Thread 1 Crashed: 0 CoreFoundation 0x0000000197e9a5fc 0x197e6d000 + 185852 1 libobjc.A.dylib 0x0000000195415244 objc_exception_throw + 88 2 CoreFoundation 0x0000000197ed46bc 0x197e6d000 + 423612 3 CoreFoundation 0x0000000197ed37b0 0x197e6d000 + 419760 4 CoreFoundation 0x0000000197e7f5f8 0x197e6d000 + 75256 5 MyApp 0x0000000103e4d4c0 startup_check_root + 12380 6 libdispatch.dylib 0x000000019fc2d248 0x19fc2b000 + 8776 7 libdispatch.dylib 0x000000019fc2efa8 0x19fc2b000 + 16296 8 libdispatch.dylib 0x000000019fc365cc 0x19fc2b000 + 46540 9 libdispatch.dylib 0x000000019fc37124 0x19fc2b000 + 49444 10 libdispatch.dylib 0x000000019fc4238c 0x19fc2b000 + 95116 11 libdispatch.dylib 0x000000019fc41bd8 0x19fc2b000 + 93144 12 libsystem_pthread.dylib 0x0000000222c04680 _pthread_wqthread + 288 13 libsystem_pthread.dylib 0x0000000222c02474 start_wqthread + 8
3
0
698
Mar ’25
FRONTBOARD crash App killed while running in the background.
PLATFORM AND VERSION iOS Development environment: Xcode 16.2, macOS 15.5 Run-time configuration: iOS 18 DESCRIPTION OF PROBLEM Our app (a VoIP and messaging app) has been experiencing a crash when running in the background for long periods of time (a couple of days) while receiving calls, and message notifications. If the app is not receiving notifications, we don't get any crashes while it runs in the background. It is worth mentioning that we have several pushes that are background pushes and they could happen depending on the outcome of an incoming call. We have the two pushes: incoming call bye: let the app know that the calling end hanged up the call. incoming call answered: lets the app know that another device (with the same shared number) answered the call (web app, Android). Those pushes are delivered within 30 seconds after the call starts. I assume that since the app was awakened by a VoIP push, those background notification won't count towards the iOS restriction of not getting too many background pushes: "The number of background notifications allowed by the system depends on current conditions, but don’t try to send more than two or three per hour." Let me know if the above assumption is not accurate. I don't see details in the crash report (such as a "Termination Description") that could guide me to address the issue. So I would appreciate if you can give me some insight on what could be causing this. Here is part of the crash report: Exception Type: EXC_CRASH (SIGKILL) Exception Codes: 0x0000000000000000, 0x0000000000000000 Termination Reason: FRONTBOARD 0xbaadca11 <RBSTerminateContext| domain:10 code:0xBAADCA11 explanation: reportType:CrashLog maxTerminationResistance:Interactive> Triggered by Thread: 0 Thread 0 name: Thread 0 Crashed: 0 libsystem_kernel.dylib 0x00000001dda93ce4 mach_msg2_trap + 8 1 libsystem_kernel.dylib 0x00000001dda9739c mach_msg2_internal + 76 (mach_msg.c:201) 2 libsystem_kernel.dylib 0x00000001dda972b8 mach_msg_overwrite + 428 (mach_msg.c:0) 3 libsystem_kernel.dylib 0x00000001dda97100 mach_msg + 24 (mach_msg.c:323) 4 CoreFoundation 0x000000018c886900 __CFRunLoopServiceMachPort + 160 (CFRunLoop.c:2637) 5 CoreFoundation 0x000000018c8851f0 __CFRunLoopRun + 1208 (CFRunLoop.c:3021) 6 CoreFoundation 0x000000018c886c3c CFRunLoopRunSpecific + 572 (CFRunLoop.c:3434) 7 GraphicsServices 0x00000001d9a65454 GSEventRunModal + 168 (GSEvent.c:2196) 8 UIKitCore 0x000000018f299274 -[UIApplication run] + 816 (UIApplication.m:3845) 9 UIKitCore 0x000000018f264a28 UIApplicationMain + 336 (UIApplication.m:5540) 10 SwiftUI 0x00000001913a97a4 closure #1 in KitRendererCommon(:) + 168 (UIKitApp.swift:68) 11 SwiftUI 0x00000001910af01c runApp(_:) + 112 (UIKitApp.swift:16) 12 SwiftUI 0x00000001910aeed0 static App.main() + 180 (App.swift:136) 13 TheApp Business 0x0000000100686028 static TheApp_BusinessApp.$main() + 52 (TheApp_Business.swift:0) 14 TheApp Business 0x0000000100686028 main + 64 15 dyld 0x00000001b375bf08 start + 6040 (dyldMain.cpp:1450) STEPS TO REPRODUCE Open the app. Leave the app running in the background while it is receiving notifications (VoIP or messages). Bring the app to the foreground after a day or two of it running in the background. Notice that after opening the app, the launch screen is presented.
3
0
193
Jul ’25
DeviceActivityReport inconsistencies
Hello, I want to echo the DeviceActivityReport "concurrency" problems flagged in https://developer.apple.com/forums/thread/720549, and ask a related question. (Thanks to Kmart and other Apple dev support folks who have been monitoring these forums and responding diligently.) I would like to display daily and weekly stats in the same view, broken down by specific apps (as in the native Screen Time). However, instantiating multiple DeviceActivityReport objects with different filters and/or different contexts leads to confusion, where the two views will incorrectly and intermittently swap data or duplicate data where it shouldn't (seemingly upon some interval when the extension provides fresh data). There isn't documentation on how to display multiple reports at once. Is the idea that logic for multiple reports should be embedded within the extension itself in the makeConfiguration() function and there should only be a single DeviceActivityReport in the main App, or is this a bug? Even with a single DeviceActivityReport, I run into inconsistencies where the View provided by the extension takes multiple seconds to load or fails to load altogether. The behavior seems random...I will build the application with the same code multiple times and see different behavior each time. Finally, a plug for better support in the Simulator for the entire set of Screen Time APIs. Thanks!
3
1
1.7k
Mar ’25
Long running data BLE data syncing in the background
I am working on a Flutter application which is use solely to collect data from a bluetooth low energy (BLE) peripheral and then upload the data to our cloud. The application runs in the background 99% of the time after the initial login and BLE pairing which is causing us some issues. After the Application is backgrounded it would work for a day to 2 days and then stop working. (What I mean with working is to download data from the BLE peripheral and then upload the data to our cloud). Once the data syncing has stopped it would take up to 12 hours until data starts flowing again. I have read in a couple of places that iOS implements some sort of "budget/heuristics" when the application is running in the background to keep track of the application and when this "budget" is used up iOS will stop servicing the application until iOS decides that the application can run in the background again. My question, is it possible via a enablement or some other mechanism to prevent iOS from blocking our application from running in the background to enable 24/7 periodic data uploads every 30 minutes. We have implemented the following so far; The data sync process is triggered from the BLE peripheral using a notification. This notification is sent every 30 minutes. Each sync duration is currently 24 seconds on average, we are working on reducing this to below 10 seconds. We implemented State Restoration to assist iOS in starting the application more efficiently. We are considering using Silent Push Notifications from the Cloud to wake up the application when data hasn't synced in 6 hours. Any assistance would be high appreciated.
3
0
154
Jun ’25
KVO crashes in older OS-Versions not replicable in Sequoia
Greetings, With MacOS 15 Sequoia, Apple updated key-value-observations in such a way, that an unremoved observation by a now deallocated object will no longer cause an exception, when the observed object triggers said observation. While this is fundamentally a positive change, the issue comes with the fact, that this change affects systems based on the version of their operating system and not the version of the operating system of the build system. Many of our customers use old operating system versions and old hardware - meaning they can't easily update. Since we need to use up to date Xcode versions to develop for newer systems, our developers tend to have rather new OS versions. This means, that we are increasingly facing bugs which only happen in customer systems but not in most developer (or QA) systems. Currently, we still can use earlier OS versions with Xcode to fix these bugs, but once the used Xcode versions no longer support MacOS 14 or below this will become a major hurdle. Are there known solutions to this issue? We are currently attempting to swizzle observer adding and removal in order to fix the problem for old systems as well, but this has proven to be quite difficult and unstable. Since any weakly held property in the middle of an observation keypath can cause crashes, one would have to split up observations into multiple subobservations, which is less simple than it sounds, due to custom implementations of addObserver (such as there seems to be in array controller proxies) and collection operators. Thanks for any suggestions!
3
0
589
Sep ’25
[iOS 26] [CallKit] [SDK 26] Application got crashed while App was Inactive
The crash log, an IPS file, indicates a crash occurred at a specific time, with the exception backtrace pointing to _terminateAppIfThereAreUnhandledVoIPPushes. However, cross-reference with the SysDiagnose logs, there is no corresponding process or activity for the application at the reported crash time. The app was not active, nor was it woken up by any event. IPS file and SysDiagnose logs have been attached in the Feedback. Feedback - FB20044587
3
0
187
Sep ’25