Delve into the world of built-in app and system services available to developers. Discuss leveraging these services to enhance your app's functionality and user experience.

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WeatherKit "Availability and pricing" section question.
In Availability and pricing section, there's a 500,000 API calls a month per Apple Developer Program membership limitation. Is this just to limit the number of calls for developer in development stage? After the app is uploaded to App store, users download and start to use this app. Will Weather API calls of general App users be included in 500,000 API calls? Thanks.
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308
Jul ’25
Request: Higher-Frequency IMU Access on Apple Watch for Sports Performance Apps
Hi everyone, I’m building a sports performance app for Apple Watch that uses the onboard IMU to analyze swings and impacts in sports like tennis and golf. The goal is to estimate club/racket head speed, ball speed, and shot quality in real time from wrist motion data. With Core Motion, I can currently get deviceMotion updates at ~100 Hz. While this is fine for general movement tracking, the actual ball impact happens much faster — 5–10 ms in tennis and ~0.5 ms in golf. Many of the high-frequency vibration/impact components are missed at 100 Hz, making it hard to directly measure or more accurately estimate certain performance metrics. Questions for Apple / community: 1. Is there a way to access raw accelerometer and gyroscope data at higher sampling rates (e.g., 500–1000 Hz) on Apple Watch? 2. If not, is this due to hardware limitations or an API/software constraint? 3. Are there any research, partner, or beta programs that allow deeper sensor access for sports-science use cases? Even modest increases in IMU sampling could unlock more accurate ball-speed estimates, impact force analysis, and strike-quality detection without needing external sensors — making Apple Watch a best-in-class wearable for precision sports analytics. Happy to share more about the current approach, sample data, and potential use cases if helpful. Thanks, Max
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280
Aug ’25
EKEventStore on Apple Watch not showing all calendars
EKEventStore on Apple Watch is not giving me all calendars. I can see only calendars of the source 'Subscriptions', but non of the calendars of source CalDAV (iCloud). This problem exists over multiple apps. Code works fine on iPhone. Any ideas? Minimal example code: import SwiftUI import EventKit struct ContentView: View { let eventStore = EKEventStore() @State var success: Bool = false @State var calendarNames: [String] = [String]() func request() async { success = (try? await eventStore.requestFullAccessToEvents()) ?? false } func list() { calendarNames = eventStore.calendars(for: .event).map { $0.title } } var body: some View { VStack { Image(systemName: "globe") .imageScale(.large) .foregroundStyle(.tint) Text("Access: \(success.description)") ScrollView { ForEach(calendarNames, id: \.self) { name in Text(name) } } } .onAppear { Task { await request() list() } } .padding() } }
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851
Jul ’25
How to pass URL to iOS app from share sheet, and automatically open app?
Hello everyone, I’ve been trying to pass a URL from Safari (or any other app) into my own app via iOS extensions (similar to how if you go to a website, open the share sheet, and hit the ChatGPT app icon, it opens ChatGPT and pastes the website URL into the chat textbox), and I’m hitting a wall. I’ve attempted both a Share Extension (using SLComposeServiceViewController) and a UI-less Action Extension (using extensionContext?.open(...)), but in both scenarios, my main app never opens. Here’s a summary of my setup: Main App Target plist <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>CFBundleURLTypes</key> <array> <dict> <key>CFBundleTypeRole</key> <string>Editor</string> <key>CFBundleURLName</key> <string>com.elislothower.URLDisplayApp</string> <key>CFBundleURLSchemes</key> <array> <string>myapp</string> </array> </dict> </array> <key>LSApplicationQueriesSchemes</key> <array/> </dict> </plist> This means my custom URL scheme is myapp://. My app delegate (or SwiftUI’s .onOpenURL) correctly handles myapp://share?url=... if I open it directly from Safari. Share Extension Attempt Subclassed SLComposeServiceViewController. Plist had com.apple.share-services as the NSExtensionPointIdentifier. I called extensionContext?.open(deepLink) with myapp://share?url=..., but it always returned false. Also, the UI (with Cancel/Post buttons) was overkill for my needs. UI-less Action Extension Attempt Created a no-UI action extension with com.apple.ui-services as NSExtensionPointIdentifier. In my custom ActionViewController, I formed the same myapp://share?url=... deep link and called extensionContext?.open(deepLink). The extension does appear in the share sheet, but again, open(deepLink) returns false—my main app never opens. Confirmed Setup I’ve tested the URL scheme in Safari: typing myapp://share?url=... directly prompts to open my app, and the URL is handled fine there. I’ve ensured both extension Info.plists have <key>LSApplicationQueriesSchemes</key><array><string>myapp</string></array> so they can attempt to open that scheme. Tried on both simulator and physical device. On the physical device, the main app is definitely installed and has been launched at least once. Current Behavior The extension logs that it forms the deep link (myapp://share?url=...) correctly. extensionContext?.open(deepLink) fails (success == false), so the main app never opens. I’ve also tried forcing the call on the main thread, simplifying the URL (like myapp://test), and checking for any typos or case-sensitivity issues—still no luck. Is there a known iOS restriction or trick for allowing an extension (share or action) to open its containing app directly? Have I missed a configuration step or entitlement that’s necessary? Is it possible that iOS is just rejecting the call in these contexts? I’d love any insight or suggestions from those who have successfully launched their main app from an extension. Thank you in advance! ContentView.swift Info.plist URLDisplayAppApp.swift URLDisplayApp.entitlements ActionRequestHandler.swift ActionViewController.swift Info.plist MyAppActionExtension.entitlements
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Jun ’25
AlarmKit Not Playing Custom Sound or Named System Sounds - iOS 26 beta 4 (23A5297i)
I'm using the new AlarmKit framework to schedule and trigger alarms in my Swift app in iOS 26 beta 4 (23A5297i). I'm trying to customize the alarm sound using a sound file embedded in the app bundle or by referencing known system tones. Problem: No matter what I pass to .named("sound-2"), whether a file bundle url, .named("sound-2.caf"), tried .mp3, .caf & .aiff, or a known iOS system sound like .named("Radar") ("Chimes", etc.), the alarm always plays the default system alert tone. There's no error or warning, but the custom or specified sound is silently ignored. sound: .named("sound-2") Question: What is the correct method or approach to play custom sound / music when Alarm Triggers? What .named("...") expects file name, file Path URL or System sound name? Is there any specific audio file length accepted or specific format? Challenge: The alarm functionality feels incomplete without support for custom sounds. A single default alert tone is often not sufficient to wake up users effectively. Hope it will be fixed in the next iOS updates.
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Aug ’25
Screen Time API: How to map bundleIdentifier to ApplicationToken for DeviceActivityMonitor when FamilyActivitySelection.Application.bundleIdentifier is nil?
I'm using FamilyActivityPicker to get consent for app/category management, which returns a FamilyActivitySelection object. I serialize this FamilyActivitySelection object (just applicationTokens and categoryTokens) and pass it to my DeviceActivityMonitor extension via App Group UserDefaults. I am using the JSON encoder/decoder over PropertyList (though both seem to exhibit the same behavior). After inspecting the FamilyActivitySelection object immediately after it's returned by FamilyActivityPicker in the main app, the application.bundleIdentifier property is consistently nil for every Application object within selection.applications. Similarly, category.localizedDisplayName is nil for ActivityCategory objects. This happens whether "Select All Apps" is used or if apps/categories are selected individually. I understand that this is the intended behavior due to Apple's user privacy policies. I read on another post that my app can be provided with bundle identifiers and app names within Shield Configuration extensions and Device Activity Report extensions - I'm not sure which ones or how exactly to do this. I am aware that I can use Label(applicationToken) SwiftUI view to display the app name/icon, but this doesn't give programmatic access to the bundleIdentifier string. My app will not log or export these bundleIdentifiers outside of its sandbox. My goal is to create mappings to the FamilyActivitySelection with the publicly accessible bundleIdentifiers. Any guidance, examples, or clarification on the intended workflow for this scenario would be greatly appreciated!
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278
May ’25
Core Spotlight searching only for title
I just adding a way to donate my app's data to Core Spotlight using CSSearchableIndex, but I'm finding that spotlight is only searching for the title of the CSSearchableItem I create. I know the index is working, because it always finds the item through the title property, but nothing else. This is how I'm creating the CSSearchableItem: - (CSSearchableItem *) createSearchableItem { CSSearchableItemAttributeSet* attributeSet = [[CSSearchableItemAttributeSet alloc] initWithContentType: UTTypeText]; attributeSet.title = [self titleForIndex]; attributeSet.displayName = [self titleForIndex]; attributeSet.contentDescription = [self contentDescriptionForIndex]; attributeSet.thumbnailData = [self thumbnailDataForIndex]; attributeSet.textContent = [self contentDescriptionForIndex]; CSSearchableItem *item = [[CSSearchableItem alloc] initWithUniqueIdentifier: [self referenceURLString] domainIdentifier:@"com.cjournal.cjournal-Logs" attributeSet:attributeSet]; item.expirationDate = [NSDate distantFuture]; return item; } There's a lot of confusing tips around which say specifying the 'textContent' should work, and/or setting the displayName is essential, but none of these are working. Is there something I'm missing with my setup? Thanks.
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190
Jun ’25
ShieldConfigurationExtension & SwiftData
Hi, I am developing a Screen Time App and I am having issues with the ShieldConfigurationExtension (ShieldConfigurationDataSource). I know this extensions is sandboxed but I should be able to read data from the main app. I am using SwiftData as my database, but I am unable to initialize it in the extensions with an error indicating insufficient file permissions. I have App Group set up and I am able to share data using UserDefaults but that is just inconvenient. Is there any way I could just open the SwiftData in read only mode so that I could display the user some info on the shield? SwiftData Init: private func setupContainer() throws { let schema = Schema([ DogEntity.self, HouseEntity.self ]) // Use app group container if available let config: ModelConfiguration if let containerURL = FileManager.default.containerURL( forSecurityApplicationGroupIdentifier: "group.\(Bundle.app.bundleIdentifier ?? "")" ) { config = ModelConfiguration(schema: schema, url: containerURL.appendingPathComponent("default.sqlite")) } else { config = ModelConfiguration(schema: schema) } self.container = try ModelContainer(for: schema, configurations: [config]) } Error in extension: fault: Attempt to add read-only file at path file:///private/var/mobile/Containers/Shared/AppGroup/51431199-5919-4AE6-940C-6FE3C53EEB46/default.sqlite read/write. Adding it read-only instead. This will be a hard error in the future; you must specify the NSReadOnlyPersistentStoreOption. error: (3) access permission denied error: Encountered exception error during prepareSQL for SQL string 'SELECT TBL_NAME FROM SQLITE_MASTER WHERE TBL_NAME = 'Z_METADATA'' : access permission denied with userInfo { NSFilePath = "/private/var/mobile/Containers/Shared/AppGroup/51431199-5919-4AE6-940C-6FE3C53EEB46/default.sqlite"; NSSQLiteErrorDomain = 3; } while checking table name from store: <NSSQLiteConnection: 0x154100300> error: Store failed to load. <NSPersistentStoreDescription: 0x15402d590> (type: SQLite, url: file:///private/var/mobile/Containers/Shared/AppGroup/51431199-5919-4AE6-940C-6FE3C53EEB46/default.sqlite) with error = Error Domain=NSCocoaErrorDomain Code=256 "The file “default.sqlite” couldn’t be opened." UserInfo={NSFilePath=/private/var/mobile/Containers/Shared/AppGroup/51431199-5919-4AE6-940C-6FE3C53EEB46/default.sqlite, NSSQLiteErrorDomain=3} with userInfo { NSFilePath = "/private/var/mobile/Containers/Shared/AppGroup/51431199-5919-4AE6-940C-6FE3C53EEB46/default.sqlite"; NSSQLiteErrorDomain = 3; } Any help appreciated 🙂
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198
May ’25
ApplicationTokens changing
We persist ApplicationTokens in a storage container that ShieldConfigurationExtension has access to. In rare, cases all the ApplicationTokens for a user seem to change. We know this because the Application parameter passed into configuration(shielding application: Application) -> ShieldConfiguration function has a Token that does not match (using == ) any of the ones we are persisting in storage. Interestingly, the persisted ones still work, so I don't believe storage has gotten corrupted or anything. We can use them to add or remove shields, we can use them to display labels of the apps they represent, etc. But they don’t match what’s passed into the ShieldConfiguration extension. If the user goes into the FamilyPicker at this point and selects an app of a token that we are already persisting, the FamilyPickerSelection will have a token matching the new one that is passed into ShieldConfigurationExtension, not the one we persisted when they last selected that app. This leads me to believe the tokens are updated/rotated in some cases. When and why does this happen, and how can we handle it gracefully?
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1.8k
Jul ’25
WeatherKit failing on JWT Error
My app AirCompare has been in the app store and successfully using WeatherKit to fetch weather since it became available. Now some (not all) users are encountering the following errors: Failed to generate jwt token for: com.apple.weatherkit.authservice with error: Error Domain=WeatherDaemon.WDSJWTAuthenticatorServiceListener.Errors Code=2 "(null)" Encountered an error when fetching weather data subset; location=<+42.40865786,-88.96911526> +/- 0.00m (speed -1.00 mps / course -1.00) @ 6/23/25, 2:56:47 PM Central Daylight Time, error=WeatherDaemon.WDSJWTAuthenticatorServiceListener.Errors 2 Error Domain=WeatherDaemon.WDSJWTAuthenticatorServiceListener.Errors Code=2 "(null)" Others are reporting this same problem here in the forums. We need a solution!
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Jun ’25
LibXML2 parsing whitespace and line breaks
When using libXML2 to parse HTML, by default, libXML2 normalizes and merges whitespace characters (including line breaks) on text nodes, which can cause line breaks within tags such as,, script, style, etc. to be removed or merged. But for tags like, line breaks and whitespace are meaningful and need to be preserved. How should it be set up?
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90
Jun ’25
Using Picture-in-Picture for Background Audio Calls on iOS
I’m developing an app with audio calling functionality, and I’d like to take advantage of Picture-in-Picture (PiP) so that when the user moves the app to the background, the ongoing call can remain minimized on the Home screen. Based on my research, it seems possible to display a view in PiP mode and have it play, and I haven’t found any documentation stating that this is prohibited. Could you please confirm if this is allowed?
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Jul ’25
PDFKit PDFPage.characterBounds(at:) returns incorrect coordinates iOS 18 beta 4
PDFKit PDFPage.characterBounds(at: Int) is returning incorrect coordinates with iOS 18 beta 4 and later / Xcode 16 beta 4. It worked fine in iOS 17 and earlier (after showing the same issue during the early iOS 17 beta cycle) It breaks critical functionality that my app relies on. I have filed feedback (FB14843671). So far no changes in the latest betas. iOS release date is approaching fast! Anybody having the same issue? Any workaround available?
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2.1k
May ’25
WatchOS smart alarm using WKExtendedRuntimeSession
I’m developing a smart alarm app that makes use of the extended runtime session. I’ve looked at the docs, and one of the background modes for Apple watch is smart alarm. The docs also say that an extended runtime session can only be scheduled one at a time, and while the app is open, which isn’t very intuitive for an alarm app that runs on schedules. I’ve seen other apps do something similar, but I’m trying to make this fully automated, without the user having to do too much manually to reschedule the smart alarm. Is there no way to do this? I would’ve thought the smart alarm background modes would allow to schedule more than 1/a repeating extended runtime session.
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Jul ’25
Use VZVirtualMachineView with actor-isolated VZVirtualMachine
We are using VZVirtualMachine instances in a Swift actor. It works fine but we hit a major problem when we decided that we want to attach it to a VZVirtualMachineView to show it / allow user interactions. VZVirtualMachineView and its virtualMachine property is isolated to @MainActor, so if we directly assign our vm instance to it, we receive a concurrency error: @MainActor public func createView() -> VZVirtualMachineView { let view = VZVirtualMachineView() view.virtualMachine = vm // x: Actor-isolated property 'vm' can not be referenced from the main actor return view } Is there any way we can make this work?
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Jun ’25
iOS26 beta4 CallKit block number function not working
Hi I'm novice developer. I’m currently developing a phone number blocking app using a Call Directory Handler Extension. The blocking feature works perfectly on iOS 18.5, but it doesn’t seem to function properly on iOS 26 beta 4. The extension is invoked, and the numbers are passed correctly, but incoming calls are not being blocked as expected. Is there a known issue with CallKit or Call Directory Extensions on iOS 26 beta 4
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Aug ’25
Translation API & Download Language Sheet
Using Apple SwiftUI Translate library: when calling: try await session.prepareTranslation() the first time, the API's Language Download sheet does not show (or shows briefly and dismisses immediately) Even when the sheet doesn't show, the keyboard is lowered, as though the sheet would be appearing, but then the keyboard raises as though the sheet was dismissed. The following Errors are printed in the console dozens of times; but on all subsequent executions, the API Language Download sheet shows as expected. The trigger code is in a function which is executed when a Translate button is tapped. Any ideas would be welcome! Console Error on first execution only 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. Failed to initialize client context with error Error Domain=NSOSStatusErrorDomain Code=-54 "process may not map database" UserInfo={NSDebugDescription=process may not map database, _LSLine=72, _LSFunction=_LSServer_GetServerStoreForConnectionWithCompletionHandler} 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. Failed to initialize client context with error Error Domain=NSOSStatusErrorDomain Code=-54 "process may not map database" UserInfo={NSDebugDescription=process may not map database, _LSLine=72, _LSFunction=_LSServer_GetServerStoreForConnectionWithCompletionHandler} 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. Failed to initialize client context with error Error Domain=NSOSStatusErrorDomain Code=-54 "process may not map database" UserInfo={NSDebugDescription=process may not map database, _LSLine=72, _LSFunction=_LSServer_GetServerStoreForConnectionWithCompletionHandler} Error returned from iconservicesagent image request: <ISBundleIdentifierIcon: 0x300df3c30> BundleID: (null) digest: 7749FEEE-F663-39B4-AD68-A18CFF762CCC - <ISImageDescriptor: 0x3033b26c0> - (64.00, 64.00)@2x v:4 l:5 a:0:0:0:0 t:() b:0 s:2 ps:0 digest: DF83A970-D4C9-3D90-BB7D-0BC21FC22E03 error: Error Domain=NSOSStatusErrorDomain Code=-609 "Client is disallowed from making such an icon request" UserInfo={NSLocalizedDescription=Client is disallowed from making such an icon request} Error returned from iconservicesagent image request: <ISTypeIcon: 0x300d0fb70>,Type: com.apple.appprotection.badge.faceid - <ISImageDescriptor: 0x3033ad0e0> - (32.00, 32.00)@2x v:0 l:5 a:0:0:0:0 t:() b:0 s:2 ps:0 digest: 648D7A72-90CB-3858-9409-5C554BB43B8E error: Error Domain=NSOSStatusErrorDomain Code=-609 "Client is disallowed from making such an icon request" UserInfo={NSLocalizedDescription=Client is disallowed from making such an icon request} Connection interrupted, finishing translation with error Error Domain=TranslationErrorDomain Code=14 "(null)" Got response from extension with error: Error Domain=TranslationErrorDomain Code=14 "(null)" Reported that remote UI finished but didn't get finished configuration, reporting the error as: Error Domain=TranslationErrorDomain Code=20 "(null)" VS terminated with error: Error Domain=_UIViewServiceErrorDomain Code=1 "(null)" UserInfo={Terminated=disconnect method} Reported that remote UI finished but didn't get finished configuration, reporting the error as: Error Domain=TranslationErrorDomain Code=14 "(null)" VS terminated with error: Error Domain=_UIViewServiceErrorDomain Code=1 "(null)" UserInfo={Terminated=disconnect method} VS terminated with error: Error Domain=_UIViewServiceErrorDomain Code=1 "(null)" UserInfo={Terminated=disconnect method} VS terminated with error: Error Domain=_UIViewServiceErrorDomain Code=1 "(null)" UserInfo={Terminated=disconnect method} VS terminated with error: Error Domain=_UIViewServiceErrorDomain Code=1 "(null)" UserInfo={Terminated=disconnect method} Trigger the Translation: // check if we need to create a translation configuration if configuration == nil { configuration = TranslationSession.Configuration.init( source: Locale.Language(identifier: sourceLanguageCode), target: Locale.Language(identifier: targetLanguageCode) ) } else { // or just update the target code then invalidate the config to re-trigger the refresh of .translationTask() configuration?.source = Locale.Language(identifier: sourceLanguageCode) configuration?.target = Locale.Language(identifier: targetLanguageCode) configuration?.invalidate() } Prepare and check if Download sheet should be presented: .translationTask(configuration) { session in do { // prepare translation & present API download sheet if lanugage download needed. try await session.prepareTranslation() } catch { print("Translate failed: \(error)") } }
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220
May ’25
SIM verification on iPhone
Hi, We have a need to provide SIM verification. At present, accessing the phone number bound to the device is not programmatically accessible. Would Apple consider exposing this API via a user consent? Otherwise, what is the suggested approach to verify the SIM card is the correct phone number on an iOS device?
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470
Aug ’25
WeatherKit "Availability and pricing" section question.
In Availability and pricing section, there's a 500,000 API calls a month per Apple Developer Program membership limitation. Is this just to limit the number of calls for developer in development stage? After the app is uploaded to App store, users download and start to use this app. Will Weather API calls of general App users be included in 500,000 API calls? Thanks.
Replies
1
Boosts
0
Views
308
Activity
Jul ’25
Request: Higher-Frequency IMU Access on Apple Watch for Sports Performance Apps
Hi everyone, I’m building a sports performance app for Apple Watch that uses the onboard IMU to analyze swings and impacts in sports like tennis and golf. The goal is to estimate club/racket head speed, ball speed, and shot quality in real time from wrist motion data. With Core Motion, I can currently get deviceMotion updates at ~100 Hz. While this is fine for general movement tracking, the actual ball impact happens much faster — 5–10 ms in tennis and ~0.5 ms in golf. Many of the high-frequency vibration/impact components are missed at 100 Hz, making it hard to directly measure or more accurately estimate certain performance metrics. Questions for Apple / community: 1. Is there a way to access raw accelerometer and gyroscope data at higher sampling rates (e.g., 500–1000 Hz) on Apple Watch? 2. If not, is this due to hardware limitations or an API/software constraint? 3. Are there any research, partner, or beta programs that allow deeper sensor access for sports-science use cases? Even modest increases in IMU sampling could unlock more accurate ball-speed estimates, impact force analysis, and strike-quality detection without needing external sensors — making Apple Watch a best-in-class wearable for precision sports analytics. Happy to share more about the current approach, sample data, and potential use cases if helpful. Thanks, Max
Replies
1
Boosts
0
Views
280
Activity
Aug ’25
Screen time api on Mac?
Is there any way to use the screen time API on Mac?
Replies
0
Boosts
0
Views
105
Activity
Jun ’25
EKEventStore on Apple Watch not showing all calendars
EKEventStore on Apple Watch is not giving me all calendars. I can see only calendars of the source 'Subscriptions', but non of the calendars of source CalDAV (iCloud). This problem exists over multiple apps. Code works fine on iPhone. Any ideas? Minimal example code: import SwiftUI import EventKit struct ContentView: View { let eventStore = EKEventStore() @State var success: Bool = false @State var calendarNames: [String] = [String]() func request() async { success = (try? await eventStore.requestFullAccessToEvents()) ?? false } func list() { calendarNames = eventStore.calendars(for: .event).map { $0.title } } var body: some View { VStack { Image(systemName: "globe") .imageScale(.large) .foregroundStyle(.tint) Text("Access: \(success.description)") ScrollView { ForEach(calendarNames, id: \.self) { name in Text(name) } } } .onAppear { Task { await request() list() } } .padding() } }
Replies
2
Boosts
1
Views
851
Activity
Jul ’25
How to link from shield
Hello, How do apps like App Lock implement app-opening from a shield? Is this supported for 3rd-party apps or limited to partners? https://apps.apple.com/us/app/app-lock/id6448239603
Replies
1
Boosts
1
Views
90
Activity
Jun ’25
How to pass URL to iOS app from share sheet, and automatically open app?
Hello everyone, I’ve been trying to pass a URL from Safari (or any other app) into my own app via iOS extensions (similar to how if you go to a website, open the share sheet, and hit the ChatGPT app icon, it opens ChatGPT and pastes the website URL into the chat textbox), and I’m hitting a wall. I’ve attempted both a Share Extension (using SLComposeServiceViewController) and a UI-less Action Extension (using extensionContext?.open(...)), but in both scenarios, my main app never opens. Here’s a summary of my setup: Main App Target plist <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>CFBundleURLTypes</key> <array> <dict> <key>CFBundleTypeRole</key> <string>Editor</string> <key>CFBundleURLName</key> <string>com.elislothower.URLDisplayApp</string> <key>CFBundleURLSchemes</key> <array> <string>myapp</string> </array> </dict> </array> <key>LSApplicationQueriesSchemes</key> <array/> </dict> </plist> This means my custom URL scheme is myapp://. My app delegate (or SwiftUI’s .onOpenURL) correctly handles myapp://share?url=... if I open it directly from Safari. Share Extension Attempt Subclassed SLComposeServiceViewController. Plist had com.apple.share-services as the NSExtensionPointIdentifier. I called extensionContext?.open(deepLink) with myapp://share?url=..., but it always returned false. Also, the UI (with Cancel/Post buttons) was overkill for my needs. UI-less Action Extension Attempt Created a no-UI action extension with com.apple.ui-services as NSExtensionPointIdentifier. In my custom ActionViewController, I formed the same myapp://share?url=... deep link and called extensionContext?.open(deepLink). The extension does appear in the share sheet, but again, open(deepLink) returns false—my main app never opens. Confirmed Setup I’ve tested the URL scheme in Safari: typing myapp://share?url=... directly prompts to open my app, and the URL is handled fine there. I’ve ensured both extension Info.plists have <key>LSApplicationQueriesSchemes</key><array><string>myapp</string></array> so they can attempt to open that scheme. Tried on both simulator and physical device. On the physical device, the main app is definitely installed and has been launched at least once. Current Behavior The extension logs that it forms the deep link (myapp://share?url=...) correctly. extensionContext?.open(deepLink) fails (success == false), so the main app never opens. I’ve also tried forcing the call on the main thread, simplifying the URL (like myapp://test), and checking for any typos or case-sensitivity issues—still no luck. Is there a known iOS restriction or trick for allowing an extension (share or action) to open its containing app directly? Have I missed a configuration step or entitlement that’s necessary? Is it possible that iOS is just rejecting the call in these contexts? I’d love any insight or suggestions from those who have successfully launched their main app from an extension. Thank you in advance! ContentView.swift Info.plist URLDisplayAppApp.swift URLDisplayApp.entitlements ActionRequestHandler.swift ActionViewController.swift Info.plist MyAppActionExtension.entitlements
Replies
3
Boosts
0
Views
608
Activity
Jun ’25
AlarmKit Not Playing Custom Sound or Named System Sounds - iOS 26 beta 4 (23A5297i)
I'm using the new AlarmKit framework to schedule and trigger alarms in my Swift app in iOS 26 beta 4 (23A5297i). I'm trying to customize the alarm sound using a sound file embedded in the app bundle or by referencing known system tones. Problem: No matter what I pass to .named("sound-2"), whether a file bundle url, .named("sound-2.caf"), tried .mp3, .caf & .aiff, or a known iOS system sound like .named("Radar") ("Chimes", etc.), the alarm always plays the default system alert tone. There's no error or warning, but the custom or specified sound is silently ignored. sound: .named("sound-2") Question: What is the correct method or approach to play custom sound / music when Alarm Triggers? What .named("...") expects file name, file Path URL or System sound name? Is there any specific audio file length accepted or specific format? Challenge: The alarm functionality feels incomplete without support for custom sounds. A single default alert tone is often not sufficient to wake up users effectively. Hope it will be fixed in the next iOS updates.
Replies
4
Boosts
2
Views
195
Activity
Aug ’25
Screen Time API: How to map bundleIdentifier to ApplicationToken for DeviceActivityMonitor when FamilyActivitySelection.Application.bundleIdentifier is nil?
I'm using FamilyActivityPicker to get consent for app/category management, which returns a FamilyActivitySelection object. I serialize this FamilyActivitySelection object (just applicationTokens and categoryTokens) and pass it to my DeviceActivityMonitor extension via App Group UserDefaults. I am using the JSON encoder/decoder over PropertyList (though both seem to exhibit the same behavior). After inspecting the FamilyActivitySelection object immediately after it's returned by FamilyActivityPicker in the main app, the application.bundleIdentifier property is consistently nil for every Application object within selection.applications. Similarly, category.localizedDisplayName is nil for ActivityCategory objects. This happens whether "Select All Apps" is used or if apps/categories are selected individually. I understand that this is the intended behavior due to Apple's user privacy policies. I read on another post that my app can be provided with bundle identifiers and app names within Shield Configuration extensions and Device Activity Report extensions - I'm not sure which ones or how exactly to do this. I am aware that I can use Label(applicationToken) SwiftUI view to display the app name/icon, but this doesn't give programmatic access to the bundleIdentifier string. My app will not log or export these bundleIdentifiers outside of its sandbox. My goal is to create mappings to the FamilyActivitySelection with the publicly accessible bundleIdentifiers. Any guidance, examples, or clarification on the intended workflow for this scenario would be greatly appreciated!
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0
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278
Activity
May ’25
Core Spotlight searching only for title
I just adding a way to donate my app's data to Core Spotlight using CSSearchableIndex, but I'm finding that spotlight is only searching for the title of the CSSearchableItem I create. I know the index is working, because it always finds the item through the title property, but nothing else. This is how I'm creating the CSSearchableItem: - (CSSearchableItem *) createSearchableItem { CSSearchableItemAttributeSet* attributeSet = [[CSSearchableItemAttributeSet alloc] initWithContentType: UTTypeText]; attributeSet.title = [self titleForIndex]; attributeSet.displayName = [self titleForIndex]; attributeSet.contentDescription = [self contentDescriptionForIndex]; attributeSet.thumbnailData = [self thumbnailDataForIndex]; attributeSet.textContent = [self contentDescriptionForIndex]; CSSearchableItem *item = [[CSSearchableItem alloc] initWithUniqueIdentifier: [self referenceURLString] domainIdentifier:@"com.cjournal.cjournal-Logs" attributeSet:attributeSet]; item.expirationDate = [NSDate distantFuture]; return item; } There's a lot of confusing tips around which say specifying the 'textContent' should work, and/or setting the displayName is essential, but none of these are working. Is there something I'm missing with my setup? Thanks.
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0
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190
Activity
Jun ’25
ShieldConfigurationExtension & SwiftData
Hi, I am developing a Screen Time App and I am having issues with the ShieldConfigurationExtension (ShieldConfigurationDataSource). I know this extensions is sandboxed but I should be able to read data from the main app. I am using SwiftData as my database, but I am unable to initialize it in the extensions with an error indicating insufficient file permissions. I have App Group set up and I am able to share data using UserDefaults but that is just inconvenient. Is there any way I could just open the SwiftData in read only mode so that I could display the user some info on the shield? SwiftData Init: private func setupContainer() throws { let schema = Schema([ DogEntity.self, HouseEntity.self ]) // Use app group container if available let config: ModelConfiguration if let containerURL = FileManager.default.containerURL( forSecurityApplicationGroupIdentifier: "group.\(Bundle.app.bundleIdentifier ?? "")" ) { config = ModelConfiguration(schema: schema, url: containerURL.appendingPathComponent("default.sqlite")) } else { config = ModelConfiguration(schema: schema) } self.container = try ModelContainer(for: schema, configurations: [config]) } Error in extension: fault: Attempt to add read-only file at path file:///private/var/mobile/Containers/Shared/AppGroup/51431199-5919-4AE6-940C-6FE3C53EEB46/default.sqlite read/write. Adding it read-only instead. This will be a hard error in the future; you must specify the NSReadOnlyPersistentStoreOption. error: (3) access permission denied error: Encountered exception error during prepareSQL for SQL string 'SELECT TBL_NAME FROM SQLITE_MASTER WHERE TBL_NAME = 'Z_METADATA'' : access permission denied with userInfo { NSFilePath = "/private/var/mobile/Containers/Shared/AppGroup/51431199-5919-4AE6-940C-6FE3C53EEB46/default.sqlite"; NSSQLiteErrorDomain = 3; } while checking table name from store: <NSSQLiteConnection: 0x154100300> error: Store failed to load. <NSPersistentStoreDescription: 0x15402d590> (type: SQLite, url: file:///private/var/mobile/Containers/Shared/AppGroup/51431199-5919-4AE6-940C-6FE3C53EEB46/default.sqlite) with error = Error Domain=NSCocoaErrorDomain Code=256 "The file “default.sqlite” couldn’t be opened." UserInfo={NSFilePath=/private/var/mobile/Containers/Shared/AppGroup/51431199-5919-4AE6-940C-6FE3C53EEB46/default.sqlite, NSSQLiteErrorDomain=3} with userInfo { NSFilePath = "/private/var/mobile/Containers/Shared/AppGroup/51431199-5919-4AE6-940C-6FE3C53EEB46/default.sqlite"; NSSQLiteErrorDomain = 3; } Any help appreciated 🙂
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1
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198
Activity
May ’25
ApplicationTokens changing
We persist ApplicationTokens in a storage container that ShieldConfigurationExtension has access to. In rare, cases all the ApplicationTokens for a user seem to change. We know this because the Application parameter passed into configuration(shielding application: Application) -> ShieldConfiguration function has a Token that does not match (using == ) any of the ones we are persisting in storage. Interestingly, the persisted ones still work, so I don't believe storage has gotten corrupted or anything. We can use them to add or remove shields, we can use them to display labels of the apps they represent, etc. But they don’t match what’s passed into the ShieldConfiguration extension. If the user goes into the FamilyPicker at this point and selects an app of a token that we are already persisting, the FamilyPickerSelection will have a token matching the new one that is passed into ShieldConfigurationExtension, not the one we persisted when they last selected that app. This leads me to believe the tokens are updated/rotated in some cases. When and why does this happen, and how can we handle it gracefully?
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7
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4
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1.8k
Activity
Jul ’25
WeatherKit failing on JWT Error
My app AirCompare has been in the app store and successfully using WeatherKit to fetch weather since it became available. Now some (not all) users are encountering the following errors: Failed to generate jwt token for: com.apple.weatherkit.authservice with error: Error Domain=WeatherDaemon.WDSJWTAuthenticatorServiceListener.Errors Code=2 "(null)" Encountered an error when fetching weather data subset; location=<+42.40865786,-88.96911526> +/- 0.00m (speed -1.00 mps / course -1.00) @ 6/23/25, 2:56:47 PM Central Daylight Time, error=WeatherDaemon.WDSJWTAuthenticatorServiceListener.Errors 2 Error Domain=WeatherDaemon.WDSJWTAuthenticatorServiceListener.Errors Code=2 "(null)" Others are reporting this same problem here in the forums. We need a solution!
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5
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4
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343
Activity
Jun ’25
LibXML2 parsing whitespace and line breaks
When using libXML2 to parse HTML, by default, libXML2 normalizes and merges whitespace characters (including line breaks) on text nodes, which can cause line breaks within tags such as,, script, style, etc. to be removed or merged. But for tags like, line breaks and whitespace are meaningful and need to be preserved. How should it be set up?
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1
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90
Activity
Jun ’25
Using Picture-in-Picture for Background Audio Calls on iOS
I’m developing an app with audio calling functionality, and I’d like to take advantage of Picture-in-Picture (PiP) so that when the user moves the app to the background, the ongoing call can remain minimized on the Home screen. Based on my research, it seems possible to display a view in PiP mode and have it play, and I haven’t found any documentation stating that this is prohibited. Could you please confirm if this is allowed?
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1
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353
Activity
Jul ’25
PDFKit PDFPage.characterBounds(at:) returns incorrect coordinates iOS 18 beta 4
PDFKit PDFPage.characterBounds(at: Int) is returning incorrect coordinates with iOS 18 beta 4 and later / Xcode 16 beta 4. It worked fine in iOS 17 and earlier (after showing the same issue during the early iOS 17 beta cycle) It breaks critical functionality that my app relies on. I have filed feedback (FB14843671). So far no changes in the latest betas. iOS release date is approaching fast! Anybody having the same issue? Any workaround available?
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17
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3
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2.1k
Activity
May ’25
WatchOS smart alarm using WKExtendedRuntimeSession
I’m developing a smart alarm app that makes use of the extended runtime session. I’ve looked at the docs, and one of the background modes for Apple watch is smart alarm. The docs also say that an extended runtime session can only be scheduled one at a time, and while the app is open, which isn’t very intuitive for an alarm app that runs on schedules. I’ve seen other apps do something similar, but I’m trying to make this fully automated, without the user having to do too much manually to reschedule the smart alarm. Is there no way to do this? I would’ve thought the smart alarm background modes would allow to schedule more than 1/a repeating extended runtime session.
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1
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0
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171
Activity
Jul ’25
Use VZVirtualMachineView with actor-isolated VZVirtualMachine
We are using VZVirtualMachine instances in a Swift actor. It works fine but we hit a major problem when we decided that we want to attach it to a VZVirtualMachineView to show it / allow user interactions. VZVirtualMachineView and its virtualMachine property is isolated to @MainActor, so if we directly assign our vm instance to it, we receive a concurrency error: @MainActor public func createView() -> VZVirtualMachineView { let view = VZVirtualMachineView() view.virtualMachine = vm // x: Actor-isolated property 'vm' can not be referenced from the main actor return view } Is there any way we can make this work?
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1
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131
Activity
Jun ’25
iOS26 beta4 CallKit block number function not working
Hi I'm novice developer. I’m currently developing a phone number blocking app using a Call Directory Handler Extension. The blocking feature works perfectly on iOS 18.5, but it doesn’t seem to function properly on iOS 26 beta 4. The extension is invoked, and the numbers are passed correctly, but incoming calls are not being blocked as expected. Is there a known issue with CallKit or Call Directory Extensions on iOS 26 beta 4
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4
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211
Activity
Aug ’25
Translation API & Download Language Sheet
Using Apple SwiftUI Translate library: when calling: try await session.prepareTranslation() the first time, the API's Language Download sheet does not show (or shows briefly and dismisses immediately) Even when the sheet doesn't show, the keyboard is lowered, as though the sheet would be appearing, but then the keyboard raises as though the sheet was dismissed. The following Errors are printed in the console dozens of times; but on all subsequent executions, the API Language Download sheet shows as expected. The trigger code is in a function which is executed when a Translate button is tapped. Any ideas would be welcome! Console Error on first execution only 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. Failed to initialize client context with error Error Domain=NSOSStatusErrorDomain Code=-54 "process may not map database" UserInfo={NSDebugDescription=process may not map database, _LSLine=72, _LSFunction=_LSServer_GetServerStoreForConnectionWithCompletionHandler} 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. Failed to initialize client context with error Error Domain=NSOSStatusErrorDomain Code=-54 "process may not map database" UserInfo={NSDebugDescription=process may not map database, _LSLine=72, _LSFunction=_LSServer_GetServerStoreForConnectionWithCompletionHandler} 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. Failed to initialize client context with error Error Domain=NSOSStatusErrorDomain Code=-54 "process may not map database" UserInfo={NSDebugDescription=process may not map database, _LSLine=72, _LSFunction=_LSServer_GetServerStoreForConnectionWithCompletionHandler} Error returned from iconservicesagent image request: <ISBundleIdentifierIcon: 0x300df3c30> BundleID: (null) digest: 7749FEEE-F663-39B4-AD68-A18CFF762CCC - <ISImageDescriptor: 0x3033b26c0> - (64.00, 64.00)@2x v:4 l:5 a:0:0:0:0 t:() b:0 s:2 ps:0 digest: DF83A970-D4C9-3D90-BB7D-0BC21FC22E03 error: Error Domain=NSOSStatusErrorDomain Code=-609 "Client is disallowed from making such an icon request" UserInfo={NSLocalizedDescription=Client is disallowed from making such an icon request} Error returned from iconservicesagent image request: <ISTypeIcon: 0x300d0fb70>,Type: com.apple.appprotection.badge.faceid - <ISImageDescriptor: 0x3033ad0e0> - (32.00, 32.00)@2x v:0 l:5 a:0:0:0:0 t:() b:0 s:2 ps:0 digest: 648D7A72-90CB-3858-9409-5C554BB43B8E error: Error Domain=NSOSStatusErrorDomain Code=-609 "Client is disallowed from making such an icon request" UserInfo={NSLocalizedDescription=Client is disallowed from making such an icon request} Connection interrupted, finishing translation with error Error Domain=TranslationErrorDomain Code=14 "(null)" Got response from extension with error: Error Domain=TranslationErrorDomain Code=14 "(null)" Reported that remote UI finished but didn't get finished configuration, reporting the error as: Error Domain=TranslationErrorDomain Code=20 "(null)" VS terminated with error: Error Domain=_UIViewServiceErrorDomain Code=1 "(null)" UserInfo={Terminated=disconnect method} Reported that remote UI finished but didn't get finished configuration, reporting the error as: Error Domain=TranslationErrorDomain Code=14 "(null)" VS terminated with error: Error Domain=_UIViewServiceErrorDomain Code=1 "(null)" UserInfo={Terminated=disconnect method} VS terminated with error: Error Domain=_UIViewServiceErrorDomain Code=1 "(null)" UserInfo={Terminated=disconnect method} VS terminated with error: Error Domain=_UIViewServiceErrorDomain Code=1 "(null)" UserInfo={Terminated=disconnect method} VS terminated with error: Error Domain=_UIViewServiceErrorDomain Code=1 "(null)" UserInfo={Terminated=disconnect method} Trigger the Translation: // check if we need to create a translation configuration if configuration == nil { configuration = TranslationSession.Configuration.init( source: Locale.Language(identifier: sourceLanguageCode), target: Locale.Language(identifier: targetLanguageCode) ) } else { // or just update the target code then invalidate the config to re-trigger the refresh of .translationTask() configuration?.source = Locale.Language(identifier: sourceLanguageCode) configuration?.target = Locale.Language(identifier: targetLanguageCode) configuration?.invalidate() } Prepare and check if Download sheet should be presented: .translationTask(configuration) { session in do { // prepare translation & present API download sheet if lanugage download needed. try await session.prepareTranslation() } catch { print("Translate failed: \(error)") } }
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4
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220
Activity
May ’25
SIM verification on iPhone
Hi, We have a need to provide SIM verification. At present, accessing the phone number bound to the device is not programmatically accessible. Would Apple consider exposing this API via a user consent? Otherwise, what is the suggested approach to verify the SIM card is the correct phone number on an iOS device?
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3
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470
Activity
Aug ’25