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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DeviceActivityMonitor extension does not call back at the set time
Hello Apple development team, I have developed an App for screen time management, which mainly uses ScreenTimeAPI. Users can set certain Apps to be disabled during a certain period of time. After the App is released, users often report that the settings do not take effect as expected. I have seen many developers on the forum reporting that the DeviceActivityMonitor extension sometimes does not trigger callbacks. Based on this background, I have the following questions: Is it a known problem that the DeviceActivityMonitor extension sometimes does not trigger callbacks? If so, are there any means to avoid or reduce the probability of occurrence? In addition to being killed by the system when the running memory exceeds (I just called some ScreenTimeAPI and accessed UserDefaults in the extension, which should not exceed the running memory), under what other circumstances will the DeviceActivityMonitor extension be killed by the system? Will it automatically recover after being killed? Will some callbacks be called when killing? Does ManagedSettingsStore have a life cycle? How do you avoid conflicts when configuring the underlying operating mechanism of multiple stores? This is a random problem. I have never encountered it during development and debugging, but users often report it. thanks
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Feb ’25
How to request Safari to automatic Provide Webpage PDFs to Share Extensions on iOS
Use case: When users open any URL in iOS Safari and tap the share button, the share extension can automatically receive the PDF version of the webpage from Safari. We've observed that the system Markup app and the Apple Books app can automatically receive a PDF file from Safari. However, our custom share extension only receives the webpage URL. While iOS Safari provides an "Options" button to manually share a webpage as a PDF, this feature is not intuitive and requires user education. Could someone help to identify the correct NSExtensionActivationRule (or any other solution) that would allow our share extension to directly receive the PDF snapshot from Safari without requiring additional user actions?
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443
Feb ’25
Issue with RCS Message Filtering on iOS 18.2.1 and 18.3
Hi Apple Developers, I am currently working on a message filtering application and facing issues specifically with filtering RCS (Rich Communication Services) messages. To debug this, I created a sample app that consistently categorizes all incoming messages as "junk." However, the filtering behaviour is inconsistent and not functioning as expected. Here are the key issues observed during testing on iOS versions 18.2.1 and 18.3: Inconsistent Filtering Behavior: When a message is received from an unknown number, it sometimes gets moved to the Junk folder momentarily but is then immediately moved back to the main Messages inbox. In some cases, the message does not get moved to the Junk folder at all, despite the app returning the verdict as "junk." Duplicate Contact Tiles: The Messages app displays two separate conversation tiles for the same mobile number, which is unexpected behavior. For reference, my carrier partner is T-Mobile. Please let me know if you need any additional information to investigate this issue further. Looking forward to your insights and guidance. Best regards, Rijul Singhal
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558
Feb ’25
iOS 17 AppIntent and requesting confirmation for widgets
I have a home widget with buttons (new in iOS 17). In order to prevent taking action if the user taps on the widget buttons accidentally, I want to ask the user for confirmation. It appeared that requestConfirmation be exactly what I needed, but no confirmation view shows up when I invoke this method in the perform function. I have tried the following: try await requestConfirmation(result: .result(dialog: "Are you sure you want to do this?") { Image(.mdlsWhite) }) and this alternative: let confirmed: Bool = try await $name.requestConfirmation(for: self.name, dialog: IntentDialog(stringLiteral: msg)) Neither option work. I am starting to think that the requestConfirmation is not to be used with Home Widgets. Is there a better way to handle confirmations for buttons included in a Home Widget?
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1.4k
Feb ’25
Social Login Firebase
I'm using react native with expo, firebase for auth, and I have google, facebook and Apple Sign In enabled. On my IOS simulator I can sign in using all 3 with no problems, but when I build and submit to test flight and test on a real device only google sign in works It crashes when I try to sign in with facebook and I get an error saying The operation couldn't be completed. (com.apple.AuthenticationServices.AuthorizationError error 1000.)
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255
Feb ’25
MAUI Application Crash in 14.5 version when click on Apple Logo
I have my application named "TestDataPro" in apple store. When I open the application and click on apple icon, my application crash. It is working fine in MACOS version 14.2.1. But it is causing crash in MACOS version 14.5 and 14.6 with having Apple M1 or M2 chip. While for the same MACOS version with having intel chip it is working fine. I have attached crash log. Can you please help me to find the root cause for this? TDPCrashReport.txt
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200
Feb ’25
Open UIViewController when QR Code is scanned
Hi developers, I have a question if it is possible to open in my application not main window but a specific ViewController, when application is installed but not running. When the application is running in background and I scan QR code, then specific ViewController is opened over SceneDelegate and method 'userActivity'. But this does not work when the application is only installed, but not running. The Appstore link is here: https://apps.apple.com/us/app/don%C3%A1tor/id6473955033
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Feb ’25
App Intent title and other localized strings not showing correctly in Shortcuts app on macOS 15
I rarely use the Shortcuts app, so it took me a while to notice that my app's app intents all show incorrectly on macOS 15. On macOS 14 and 13, they used to show correctly, but now it seems that all localized strings show the key rather than the localized value. @available(iOS 16.0, macOS 13.0, *) struct MyAppIntent: AppIntent { static let title = LocalizedStringResource("key1", comment: "") static let description = IntentDescription(LocalizedStringResource("key2", comment: "")) ... } In Localizable.xcstrings file I have defined all the strings, for instance I have associated key1 with the value Title, but while the Shortcuts app used to display Title, it now displays key1. Is this a known issue or did something change in macOS 15 that would require me to update something?
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Feb ’25
Basic app intent always showing error in Shortcuts app "The action could not run because an internal error occurred."
I have a very basic App Intent extension in my macOS app that does nothing than accepting two parameters, but running it in Shortcuts always produces the error "The action “Compare” could not run because an internal error occurred.". What am I doing wrong? struct CompareIntent: AppIntent { static let title = LocalizedStringResource("intent.compare.title") static let description = IntentDescription("intent.compare.description") static let openAppWhenRun = true @Parameter(title: "intent.compare.parameter.original") var original: String @Parameter(title: "intent.compare.parameter.modified") var modified: String func perform() async throws -> some IntentResult { return .result() } }
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1.2k
Feb ’25
CallDirectoryExtention - How to remove a phone number entry that has already been added if a specific value is retrieved.
The App has the ability to use WebKit and display web pages and the ability to add phone numbers to CallDirectory at specific timing. In this App, when the App is launched or when the Add Contact button on the web page is pressed, CallDirectoryExtention is reloaded from the host app (WebKit-viewController), the phone number is retrieved from the server, and the entry is updated. I would like to add a process to remove the already added phone number entry when a specific value is retrieved from the application server. The specific process we wish to implement is as follows. Step 1: Use URLsession to retrieve values from the application server. (ViewController) Step 2: If the value is a specific value, call a Function that deletes the CallDirectoryExtention entry. (ViewController) Step 3: Delete all entries for the registered phone numbers.
 However, I am aware that I have to use reloadExtension() to call the CallDirectoryExtention process from ViewController on Step2. if I do so, CallDirectoryHandler.beginRequest() will be processed, and I am wondering if it is not possible to execute only the Function that deletes the entry. Is there a way to run only the Function that deletes the CallDirectoryExtention entry from the host app(viewController)?
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Feb ’25
Performance Implications of XPC polling
On my MAC, I have a XPC server running as a daemon. It also checks the clients for codesigning requirements. I have multiple clients(2 or more). Each of these clients periodically(say 5 seconds) poll the XPC server to ask for a particular data. I want to understand how the performance of my MAC will be affected when multiple XPC clients keep polling a XPC server.
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445
Feb ’25
Getting a file icon on iOS
Some time ago I read somewhere that one can get a file icon on iOS like this: UIDocumentInteractionController(url: url).icons.last!) but this always returns the following image for every file: Today I tried the following, which always returns nil: (try? url.resourceValues(forKeys: [.effectiveIconKey]))?.allValues[.effectiveIconKey] as? UIImage Is there any way to get a file icon on iOS? You can try the above methods in this sample app: struct ContentView: View { @State private var isPresentingFilePicker = false @State private var url: URL? var body: some View { VStack { Button("Open") { isPresentingFilePicker = true } if let url = url { Image(uiImage: UIDocumentInteractionController(url: url).icons.last!) if let image = (try? url.resourceValues(forKeys: [.effectiveIconKey]))?.allValues[.effectiveIconKey] as? UIImage { Image(uiImage: image) } else { Text("none") } } } .padding() .fileImporter(isPresented: $isPresentingFilePicker, allowedContentTypes: [.data]) { result in do { let url = try result.get() if url.startAccessingSecurityScopedResource() { self.url = url } } catch { preconditionFailure(error.localizedDescription) } } } }
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Feb ’25
Background App wake up when Live Activity Offline Push Arrived not reliable
we have three problem when using the push notification on Live Activity. 1. What is the specific callback strategy for the activityUpdates property in ActivityKit? We found that in actual user scenarios, there is a probability that we may not receive callbacks. From the community experience, there are some resource optimization strategies that do not perform callbacks. From this perspective, the explanation is kind of vague. Is there any clear feedback to understand why callbacks are performed/not performed? 2.what is the specific description of the wake-up strategy, when background app receive Live Activity offline start Push? From community experience, we can see that the system may wake up for a duration of 0-30s due to resource optimization strategies, or not wake up/not deal with it. Is there an official description of the wake-up strategy? or we also have to follow this description: Wake up of apps using content-available pushes are heavily throttled. You can expect 1-2 wakeup per hour as a best case scenario in the hands of your users. so this cannot be assumed to be a reliable wake-up on demand mechanism for an app. 3 How can we determine user have selected (allow or always allow) of the Live Activity permission? When we use real-time activity offline push, there are two system prompts in iOS: the first prompt : allow and disallow real-time activity the second prompt : always allow and disallow Is there an interface that can directly determine which permission the user has chosen (allow/always allow)? (By the way, we can get disallow status). At present, we haven't seen any interface in the official documentation/interface that can determine (allow/always allow). The difference here will affect the generation of Update Token. Without Update Token, we can not update our activity instance.
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640
Feb ’25
iOS 17 App clip link click
When we use the App Clip link to jump on an iOS17 device, the first click will not respond, and the App Clip pop-up window will not pop up until the second click. Proceed as follows: After the iPhone clicks the link for the first time, or clicks the ‘Clear Experience Cache’ button in setting-->Developer-->App Clips Testing On the Notes App on iPhone, click the link https://appclip.apple.com/id?p=com.example.naturelab.backyardbirds.Clip There is no response when clicking the link for the first time, and the window will not pop up until the second click. Is this an iPhone problem? Looking forward to your reply
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Feb ’25
Device Activity Report only for Selected Apps
I want to display device activity reports for particular selected apps. for getting a daily basis app uses time. Now, what is happening? there are 10 apps selected from the family activity picker but some apps are displayed in the list. I need all 10 apps or more that I will choose from the family activity picker. The bellow code is used for fetching reports. var body: some View { VStack { DeviceActivityReport(context, filter: filter) } } bellow code is used for the filter @State public var filter = DeviceActivityFilter() init(selectedApps: Set<ApplicationToken>, selectedCategories: Set<ActivityCategoryToken>, selectedWebDomains: Set<WebDomainToken>) { self.selectedApps = selectedApps self.selectedCategories = selectedCategories self.selectedWebDomains = selectedWebDomains self.filter = DeviceActivityFilter( segment: .daily( during: Calendar.current.dateInterval( of: .weekOfYear, for: .now )! ), users: .all, devices: .init([.iPhone]), applications: selectedApps, categories: selectedCategories, webDomains: selectedWebDomains ) } You can see we selected 3 apps from family activity picker but we getting 2 apps from DeviceActivityReport extension following code is for device activity report extension let context: DeviceActivityReport.Context = .totalActivity // Define the custom configuration and the resulting view for this report. let content: (ActivityReport) -> TotalActivityView func makeConfiguration(representing data: DeviceActivityResults<DeviceActivityData>) async -> ActivityReport { // Reformat the data into a configuration that can be used to create // the report's view. var res = "" var list: [AppDeviceActivity] = [] let totalActivityDuration = await data.flatMap { $0.activitySegments }.reduce(0, { $0 + $1.totalActivityDuration }) for await d in data { res += d.user.appleID!.debugDescription res += d.lastUpdatedDate.description for await a in d.activitySegments{ res += a.totalActivityDuration.formatted() for await c in a.categories { for await ap in c.applications { if let apptoken = ap.application.token { let appName = (ap.application.localizedDisplayName ?? "nil") let bundle = (ap.application.bundleIdentifier ?? "nil") let duration = ap.totalActivityDuration let numberOfPickups = ap.numberOfPickups let app = AppDeviceActivity(appToken: apptoken, id: bundle, displayName: appName, duration: duration, numberOfPickups: numberOfPickups) list.append(app) } } } } } return ActivityReport(totalDuration: totalActivityDuration, apps: list) }
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1k
Feb ’25
iOS Settings URL for SOFTWARE_UPDATE_LINK Not Working on iOS 18
Hello, I have been using the App-prefs:General&amp;path=SOFTWARE_UPDATE_LINK URL in my application to navigate to system settings, and it worked as expected. However, after updating to iOS 18, it no longer works, and I haven't been able to find a replacement. Is there any alternative solution or a different URL that works? I also tried prefs:root=General&amp;path=SOFTWARE_UPDATE_LINK, but it didn’t work either.
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440
Feb ’25
Screen sharing application - URGENT question
There are different kinds of screen-sharing applications, all using different APIs. The API used by AnyDesk, for example, or TeamViewer, which doesn't require light signals. I wonder if this is more appropriate for a corporate application, i.e. MDM, A screen-sharing application could be created and validated by Apple to display no light signals, and which could access the user's screen whenever the person wanted to after an initial acceptance? In other words, the user accepts to share his screen once, but won't be notified to accept the next time. Or is this impossible on iOS? I'd be honored to have some answers
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Feb ’25