Hello everyone, Our team is currently developing an iOS application requiring real-time audio communication and evaluating the most suitable frameworks. Options include CallKit, custom solutions using AVAudioEngine/Audio Units, and the PushToTalk framework. Regarding the PushToTalk framework, we have some questions about its core design and capabilities that we'd appreciate clarification on from the community or Apple engineers. Based on the PushToTalk framework documentation, its API design (e.g., methods like requestBeginTransmission, endTransmission which imply explicitly requesting transmission rights), and its system UI integration, it strongly appears oriented towards half-duplex communication scenarios, similar to traditional walkie-talkies where only one participant transmits audio at a time. Is this understanding accurate? Is the PushToTalk framework's design strictly limited to managing half-duplex audio interactions? Or, does the framework itself also provide built-in mechanisms or APIs to manage simultaneous, bi-directional (full-duplex) audio streaming between participants? To be clear, we are asking about the inherent capabilities of the PushToTalk framework itself. We understand it's possible to use PushToTalk for signaling and UI management, and separately implement the actual full-duplex audio stream using AVAudioEngine or other audio APIs. However, we want to confirm if the framework itself is designed to support or simplify full-duplex audio communication. Have other developers investigated the specific limitations or capabilities of the PushToTalk framework regarding audio transmission modes (half-duplex vs. full-duplex)? Are there any official documentation references or WWDC sessions that explicitly clarify the framework's support (or lack thereof) for full-duplex operation? If PushToTalk is indeed limited to half-duplex, what are the generally accepted best practices for apps requiring full-duplex calls – transitioning directly to CallKit (where applicable) or building custom audio processing pipelines? Clarifying this point is crucial for us to select the correct technology stack for our application. Any relevant insights, documentation pointers, or shared development experiences would be greatly appreciated. Thank you for your help!

I am working with a watchOS app in SwiftUI, and I am using the following code to dial a phone number from the watch: var number = "123456789" if let telURL = URL(string: "tel:\(number)") { let wkExtension = WKExtension.shared() wkExtension.openSystemURL(telURL) } The issue is that when I try to dial a number starting with a * (asterisk) or # (hash), it doesn't work. When dialing a regular number, it works fine. Is there any way to get this to work?

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) }}}

I want decoded my base64 string and want to create image from it. NSData *data = [NSData dataWithBytes:bpData.rt_wav.data length:sizeof(bpData.rt_wav.data)]; NSMutableString *baseString = [data base64Encoding]; UIImage *image = [UIImage imageWithData:data];

We are planning to use our internal IdP (PingFederate) for authentication of end users in their iOS apps using ASWebAuthenticationSession. Initial tests are successful, but the user is prompted for every login (and logouts) with a consent dialogue box: “AppName” wants to use “internal domain-name” to Sign In This allows the app and website to share information about you. Cancel Continue” Let’s say that our top-level domain is “company.no”, where our IdP is placed at “idp.company.com”. I have seen examples where the Associated domains entitlement points to the idp as a webserver for serving the JSON output AASA file. In this case that would be: authsrv: idp.company.com Anyone with experience implementing this structure with the IdP as webserver for serving the JSON output? Our problem is that trying to use the IdP as webserver for this purpose is that it is very complicated to modify the IdP’s webserver configuration. Also, this modification needs to be re-done every time we need to upgrade the IdP. My question is therefore also related to the options of which webserver to install the AASA file on. Has anyone installed the file on a generic webserver on the toplevel domain like “webserver.company.com” ?

Hi Team, We’re encountering a device-specific issue with our SMS Message Filter extension. The extension works as expected on an iPhone 11 running iOS 16.6, but it does not trigger on an iPhone 12 Pro running iOS 16.7. Key Observations: The extension is implemented using ILMessageFilterExtension and calls messageFilterOffline(appGroupIdentifier:for:) from our shared library. The App Group is properly configured and accessible across the app and extension. The extension is enabled under Settings > Messages > Unknown & Spam. There are no crashes or error logs reported on the affected device. The issue is consistently reproducible — it works on one device but not the other. We’re wondering if this could be a regression or a device-specific behavior change introduced in iOS 16.7. Has anyone encountered similar inconsistencies in Message Filter extensions across different iOS versions or device models? Any guidance or suggestions would be greatly appreciated. Thanks in advance!

We have identified an issue when using NumberFormatter with the locale set to it_IT. Specifically, when formatting numbers with exactly four integer digits, the grouping separator is not applied: for example, the number is displayed as 4000,00 instead of the expected 4.000,00. This behavior occurs only with four-digit integers; for instance, 40.000,00 is formatted correctly. The issue appears to affect only iOS 18.4 and later versions.

Hi, I work at OneSignal, a third-party SDK, and have the following two crash reports submitted by a client for the same issue. Because the crash originates from our SDK, even if the root cause may be elsewhere, the onus is on our team to try to resolve this crash. Additionally, my information is limited as this is not our own crash report. I'm trying to figure out why this crash happens and how we can address it within our SDK. Crash Reported: Fatal Exception: NSInvalidArgumentException [NSMutableDictionary __addObject:forKey:]: object cannot be nil Context: Our SDK makes a call to [NSUserDefaults(NSUserDefaults) objectForKey:] on the standardUserDefaults and passes in a non-null key. It appears further up the call stack, a null value is being added to a dictionary. I assume this is the innards of how the search list is generated. Additional Information: The client states that it seems to happen only once per user and the scale is not extremely high but it is increasing. They are unsure what happened and when. They don't have much information about the devices except it has happened on iOS 18. Log 1: 0 CoreFoundation 0x2d5fc __exceptionPreprocess 1 libobjc.A.dylib 0x31244 objc_exception_throw 2 CoreFoundation 0x15548 -[NSMutableDictionary __addObject:forKey:] 3 CoreFoundation 0x20850 -[__NSDictionaryM __apply:context:] 4 CoreFoundation 0x54700 ___CFPrefsDeliverPendingKVONotificationsGuts_block_invoke 5 CoreFoundation 0x52988 __CFDictionaryApplyFunction_block_invoke 6 CoreFoundation 0x52524 CFBasicHashApply 7 CoreFoundation 0x21040 CFDictionaryApplyFunction 8 CoreFoundation 0x7a6b0 _CFPrefsDeliverPendingKVONotificationsGuts 9 CoreFoundation 0x777d0 -[_CFXPreferences _deliverPendingKVONotifications] 10 CoreFoundation 0x776ac __108-[_CFXPreferences(SearchListAdditions) withSearchListForIdentifier:container:cloudConfigurationURL:perform:]_block_invoke 11 CoreFoundation 0x5cf24 normalizeQuintuplet 12 CoreFoundation 0x5cd60 -[_CFXPreferences withSearchListForIdentifier:container:cloudConfigurationURL:perform:] 13 CoreFoundation 0x5cc60 -[_CFXPreferences copyAppValueForKey:identifier:container:configurationURL:] 14 CoreFoundation 0x5c8bc _CFPreferencesCopyAppValueWithContainerAndConfiguration 15 Foundation 0xf0dcc -[NSUserDefaults(NSUserDefaults) objectForKey:] 16 OneSignalCore 0xc7c8 -[OneSignalUserDefaults keyExists:] + 61 (OneSignalUserDefaults.m:61) 17 OneSignalCore 0xc8b0 -[OneSignalUserDefaults getSavedBoolForKey:defaultValue:] + 70 (OneSignalUserDefaults.m:70) 18 OneSignalCore 0xbb10 +[OSPrivacyConsentController requiresUserPrivacyConsent] + 59 (OSPrivacyConsentController.m:59) 19 OneSignalCore 0xbc30 +[OSPrivacyConsentController shouldLogMissingPrivacyConsentErrorWithMethodName:] + 75 (OSPrivacyConsentController.m:75) 20 OneSignalCore 0x4418 +[OneSignalConfigManager shouldAwaitAppIdAndLogMissingPrivacyConsentForMethod:] + 50 (OneSignalConfigManager.m:50) 21 OneSignalOSCore 0x537c OSOperationRepo.flushDeltaQueue(inBackground:) + 140 (OSOperationRepo.swift:140) 22 OneSignalOSCore 0x4868 closure #1 in OSOperationRepo.pollFlushQueue() + 84 (OSOperationRepo.swift:84) 23 OneSignalOSCore 0x5078 thunk for @escaping @callee_guaranteed @Sendable () -> () 24 libdispatch.dylib 0x3fa8 _dispatch_client_callout 25 libdispatch.dylib 0x745c _dispatch_continuation_pop 26 libdispatch.dylib 0x1b620 _dispatch_source_latch_and_call 27 libdispatch.dylib 0x1a1e8 _dispatch_source_invoke 28 libdispatch.dylib 0xb42c _dispatch_lane_serial_drain 29 libdispatch.dylib 0xc124 _dispatch_lane_invoke 30 libdispatch.dylib 0x1738c _dispatch_root_queue_drain_deferred_wlh 31 libdispatch.dylib 0x16bd8 _dispatch_workloop_worker_thread 32 libsystem_pthread.dylib 0x3680 _pthread_wqthread 33 libsystem_pthread.dylib 0x1474 start_wqthread Log 2: Fatal Exception: NSInvalidArgumentException 0 CoreFoundation 0x2d5fc __exceptionPreprocess 1 libobjc.A.dylib 0x31244 objc_exception_throw 2 CoreFoundation 0x15548 -[NSMutableDictionary __addObject:forKey:] 3 CoreFoundation 0x168f0 __72-[CFPrefsSource mergeIntoDictionary:sourceDictionary:cloudKeyEvaluator:]_block_invoke 4 CoreFoundation 0x23ecc -[__NSFrozenDictionaryM __apply:context:] 5 CoreFoundation 0x4f82c -[CFPrefsSource mergeIntoDictionary:sourceDictionary:cloudKeyEvaluator:] 6 CoreFoundation 0x783b8 -[CFPrefsSearchListSource alreadylocked_getDictionary:] 7 CoreFoundation 0x77dfc -[CFPrefsSearchListSource alreadylocked_copyValueForKey:] 8 CoreFoundation 0x77d30 -[CFPrefsSource copyValueForKey:] 9 CoreFoundation 0x77ce4 __76-[_CFXPreferences copyAppValueForKey:identifier:container:configurationURL:]_block_invoke 10 CoreFoundation 0x77690 __108-[_CFXPreferences(SearchListAdditions) withSearchListForIdentifier:container:cloudConfigurationURL:perform:]_block_invoke 11 CoreFoundation 0x5cf24 normalizeQuintuplet 12 CoreFoundation 0x5cd60 -[_CFXPreferences withSearchListForIdentifier:container:cloudConfigurationURL:perform:] 13 CoreFoundation 0x5cc60 -[_CFXPreferences copyAppValueForKey:identifier:container:configurationURL:] 14 CoreFoundation 0x5c8bc _CFPreferencesCopyAppValueWithContainerAndConfiguration 15 Foundation 0xf0dcc -[NSUserDefaults(NSUserDefaults) objectForKey:] 16 OneSignalCore 0xc7c8 -[OneSignalUserDefaults keyExists:] + 61 (OneSignalUserDefaults.m:61) 17 OneSignalCore 0xcbd8 -[OneSignalUserDefaults getSavedDoubleForKey:defaultValue:] + 107 (OneSignalUserDefaults.m:107) 18 OneSignalFramework 0x8964 +[OneSignal shouldStartNewSession] + 350 (OneSignal.m:350) 19 OneSignalFramework 0xc968 +[OneSignalTracker applicationBecameActive] + 83 (OneSignalTracker.m:83) 20 OneSignalFramework 0xb894 -[OneSignalLifecycleObserver didBecomeActive] + 84 (OneSignalLifecycleObserver.m:84) ...... 55 UIKitCore 0x3ee674 -[UIApplication _run] 56 UIKitCore 0x14e88 UIApplicationMain 57 UnityFramework 0x399aef0 -[UnityFramework runUIApplicationMainWithArgc:argv:] + 96 (main.mm:96) 58 ClientsApp 0x412c main + 28 (main.mm:28)

I am developing a web application, I hope to be able to intercept all requests in the loaded web page, match the network request I want to specifically intercept the network request and then obtain the request header information (not the user's personal privacy data interception), if the use is the method of injection, the request header information is incomplete, such as the more important "content-type" field in the request header, so I try to use Swizzling method to intercept all http and https requests, and I can now intercept all the request information. But there is still a problem with my project, when loading x.com, logging in, appearing white screen after the successful landing, and not loading to the page after the successful landing, I don't know where the reason is。 Below is my core code implementation fragment. import WebKit // MARK: - WebViewController class WebViewController: UIViewController { fileprivate var webView: WKWebView! private var schemeHandler: WWKProxyWKURLSchemeHandler! override func viewDidLoad() { super.viewDidLoad() Self.initSwizzling setupWebView() loadInitialContent() } private func setupWebView() { let config = WKWebViewConfiguration() schemeHandler = WWKProxyWKURLSchemeHandler() config.setURLSchemeHandler(self.schemeHandler, forURLScheme: "https") config.setURLSchemeHandler(self.schemeHandler, forURLScheme: "http") webView = WKWebView(frame: view.bounds, configuration: config) webView.autoresizingMask = [.flexibleWidth, .flexibleHeight] view.addSubview(webView) } private func loadInitialContent() { if let url = URL(string: "https://x.com") { let request = URLRequest(url: url,cachePolicy:.reloadIgnoringLocalCacheData,timeoutInterval: 15) webView.load(request) } } func reloadWebView() { webView?.reloadFromOrigin() } } class WWKProxyWKURLSchemeHandler: NSObject, WKURLSchemeHandler { private let lock = NSLock() private var activeTasks = [ObjectIdentifier: URLSessionDataTask]() func webView(_ webView: WKWebView, start urlSchemeTask: WKURLSchemeTask) { lock.lock() defer { lock.unlock() } let taskID = ObjectIdentifier(urlSchemeTask) guard !activeTasks.keys.contains(taskID) else { print("⚠️ Task already started: \(urlSchemeTask.request.url?.absoluteString ?? "")") return } print("Intercepted URL---:",urlSchemeTask.request.url?.absoluteString ?? "") print("All requests intercepted----:",urlSchemeTask.request.allHTTPHeaderFields) let request = urlSchemeTask.request let dataTask = URLSession.shared.dataTask(with: request) { [weak self] data, response, error in guard let self = self else { return } self.lock.lock() let isActive = self.activeTasks[taskID] != nil self.lock.unlock() guard isActive else { print("🌀 Task already cancelled: \(urlSchemeTask.request.url?.absoluteString ?? "")") return } // Make sure it only handles once guard self.activeTasks.keys.contains(taskID) else { return } self.activeTasks.removeValue(forKey: taskID) DispatchQueue.main.async { if let error = error { urlSchemeTask.didFailWithError(error) print("🔴 Task failed: \(urlSchemeTask.request.url?.absoluteString ?? "") - \(error.localizedDescription)") return } guard let response = response, let data = data else { urlSchemeTask.didFailWithError(URLError(.unknown)) print("🔴 Invalid response: \(urlSchemeTask.request.url?.absoluteString ?? "")") return } urlSchemeTask.didReceive(response) urlSchemeTask.didReceive(data) urlSchemeTask.didFinish() print("🟢 Task completed: \(urlSchemeTask.request.url?.absoluteString ?? "")") } } self.activeTasks[taskID] = dataTask dataTask.resume() } func webView(_ webView: WKWebView, stop task: WKURLSchemeTask) {} private func finishTask(taskID: ObjectIdentifier ,task: WKURLSchemeTask, response: URLResponse?, data: Data?, error: Error?) { lock.lock() defer { lock.unlock() } guard activeTasks.keys.contains(taskID) else { return } activeTasks.removeValue(forKey: taskID) DispatchQueue.main.async { if let error = error { task.didFailWithError(error) print("🔴 Task failed: \(task.request.url?.absoluteString ?? "") - \(error.localizedDescription)")return} guard let response = response, let data = data else { task.didFailWithError(URLError(.unknown)) print("🔴 Invalid response: \(task.request.url?.absoluteString ?? "")") return } task.didReceive(response) task.didReceive(data) task.didFinish() print("🟢 Task completed: \(task.request.url?.absoluteString ?? "")") } } } extension WKWebView { @objc dynamic class func qm_handlesURLScheme(_ urlScheme: String) -> Bool { if urlScheme == "https" || urlScheme == "http" {return false} return self.qm_handlesURLScheme(urlScheme) } // Exchange of execution methods static func setupSwizzling() { let originalSelector = #selector(handlesURLScheme(_:)) let swizzledSelector = #selector(qm_handlesURLScheme(_:)) // Implemented by Runtime Get Method guard let originalMethod = class_getClassMethod(WKWebView.self, originalSelector), let swizzledMethod = class_getClassMethod(WKWebView.self, swizzledSelector) else { return } // Implementation of Exchange Methods method_exchangeImplementations(originalMethod, swizzledMethod) } } extension WebViewController { private static let initSwizzling: Void = { DispatchQueue.once(token: "com.webview.swizzling") { WKWebView.setupSwizzling() } }() } // GCD Once extension DispatchQueue { private static var tokens = Set<String>() class func once(token: String, block: () -> Void) { objc_sync_enter(self) defer { objc_sync_exit(self) } guard !tokens.contains(token) else { return } tokens.insert(token) block() } } extension WebViewController: WKNavigationDelegate { func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) { decisionHandler(.allow) } }

Hi there, we are implementing the new ContactProviderExtension introduced in iOS 18 and we are able to activate the extension, add data and everything. But we want to add domains to seperate contacts and currently we are getting an error "ContactProvider.ContactProviderError.domainNotRegistered". That makes sense because in the API docu we are not finding a way to register our domains. We are using ContactProviderDomain to create domains but we are not able to find any function to register. Could you please give a hint? Thank you

I am trying to access clipboard via NSPasteboard API from a System Extension. However, all of its get methods return empty arrays and nil objects. Is that expected? Is there some permission or entitlement required for a System Extension to access clipboard?

we have written a QL preview generator for some 3D data formats not supported by the AR Quicklook generators included in iOS. however, we are struggeling with the 100 MB memory ceiling imposed on an app extension in iOS. we have included the "Increased Memory Limit" entitlement in both the app and in the preview extensions. nevertheless, the preview generator is limited to 100 MB, even on most recent devices like iPhone 16 Pro Max. we can even see 100 MB limit when we attach to the process with Xcode. my question: did we miss anything? are there additional steps necessary to obtain the increased memory limit? must we explicitly apply for it? 500 MB would be fine (our preview generator does not load textures). best regards

Let’s try calculating one day after "2023/11/04 12:00 New York time". let timeZone = TimeZone(identifier: "America/New_York")! var calendar = Calendar(identifier: .gregorian) calendar.timeZone = timeZone var dateFormatter = DateFormatter() dateFormatter.timeZone = timeZone dateFormatter.locale = .init(identifier: "ja_JP") dateFormatter.dateStyle = .short dateFormatter.timeStyle = .short var dateComponents = DateComponents() dateComponents.year = 2023 dateComponents.month = 11 dateComponents.day = 4 dateComponents.hour = 12 // At New York 2023/11/04 12:00 let date1 = calendar.date(from: dateComponents)! print(dateFormatter.string(from: date1)) // Add 1 day let date2 = calendar.date(byAdding: .day, value: 1, to: date1)! print(dateFormatter.string(from: date2))``` The output is: 2023/11/04 12:00 2023/11/05 12:00 Now, let’s try the following—also to get the time one day later: let date2 = calendar.date(byAdding: .minute, value: 24 * 60, to: date1)! print(dateFormatter.string(from: date2)) This outputs: 2023/11/04 12:00 2023/11/05 11:00 What's Causing This Difference? It’s likely due to Daylight Saving Time (DST). But why do we get different results between the first and second examples?

Hi everyone, I’m developing a screen-time and focus app that uses Apple’s Family Controls framework to block distracting apps and reward users through a gamified experience. Apple approved Family Controls (Distribution) for the main app identifier, but they did not approve the required extension target (which implements DeviceActivityMonitor, required for the framework to function). Because of this, I can’t archive or upload the app to TestFlight — and I’ve been stuck in limbo for over 2 months. This is severely delaying my launch. The app works perfectly, but I can’t release it because the extension wasn’t included in the entitlement approval. Has anyone else run into this with Family Controls? Is there any known way to escalate or fast-track approval for additional app IDs or targets? Would really appreciate any help, advice, or hacks. 🙏 Thanks, Enzer

What I want to achieve now is that when the app is not running, upon receiving a notification, it displays an interface similar to CallKit with accept and decline buttons. Here is part of my code: @available(iOS 17.4, *) class LiveCommunicationManager: NSObject, ConversationManagerDelegate { static let shared = LiveCommunicationManager() var isInvalidate:Bool = false var configuration: ConversationManager! override init() { let config = ConversationManager.Configuration( ringtoneName: "notes_of_the_optimistic", iconTemplateImageData: UIImage(named: "AppIcon")?.pngData(), // 图标的 PNG 数据 maximumConversationGroups: 1, // 最大对话组数 maximumConversationsPerConversationGroup: 1, // 每个对话组内最大对话数 includesConversationInRecents: false, // 是否在通话记录中显示 supportsVideo: false, // 是否支持视频 supportedHandleTypes: [.generic,.phoneNumber,.emailAddress] // 支持的通话类型 ) configuration = ConversationManager.init(configuration: config) } func reportIncomingCall(uuid: UUID, callerName: String) { configuration.delegate = self let local = Handle(type: .generic, value: callerName, displayName: callerName) let update = Conversation.Update(localMember: local,members: [local],activeRemoteMembers: [local]) Task{ do { try await configuration.reportNewIncomingConversation(uuid: uuid, update: update) print("成功报告新来电") } catch { print("报告新来电失败: \(error.localizedDescription)") } } } func conversationManager(_ manager: ConversationManager, conversationChanged conversation: Conversation) { print("会话状态改变了") } func conversationManagerDidBegin(_ manager: ConversationManager) { print("会话已经开始了") manager.delegate = self } func conversationManagerDidReset(_ manager: ConversationManager) { print("会话将要清除了") } func conversationManager(_ manager: ConversationManager, perform action: ConversationAction) { print("会话接听了") configuration.invalidate() } func conversationManager(_ manager: ConversationManager, timedOutPerforming action: ConversationAction) { print("会话超时了") } func conversationManager(_ manager: ConversationManager, didActivate audioSession: AVAudioSession) { print("会话激活了") } func conversationManager(_ manager: ConversationManager, didDeactivate audioSession: AVAudioSession) { print("会话死亡了") } } 在Appdelegate里设置了这些： func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -&gt; Void) { // 在这里处理离线推送通知 completionHandler(.noData) // 返回后台任务完成 if let aps = userInfo["aps"] as? [String: Any], let alert = aps["alert"] as? [String : Any]{ // 静默推送的处理逻辑 if #available(iOS 17.4, *) { let manager = LiveCommunicationManager.shared if manager.isInvalidate { return } if let msgType = userInfo["msgType"] as? Int{ if msgType == 5{ manager.configuration.invalidate() }else{ let callerName = alert["title"] as? String ?? "Fanvil" manager.reportIncomingCall(uuid: UUID(), callerName: callerName) } } } } } Xcode has been configured with the necessary capabilities, such as Background Fetch, Voice over IP, Background Processing, and Push Notification. The issue now is that sometimes the code works as expected, allowing the app to wake up when not running and displaying the system interface with accept and decline buttons. However, after a few successful attempts, the app stops waking up, and no notification appears. But when I manually open the app, the didReceiveRemoteNotification method gets triggered. I’d like to know why this stops working after a few times.

Simulator device failed to install the application. Domain: IXErrorDomain Code: 2 Failure Reason: Invalid placeholder attributes. User Info: { DVTErrorCreationDateKey = "2025-04-01 17:20:32 +0000"; FunctionName = "+[IXPlaceholder _placeholderForBundle:client:withParent:installType:metadata:placeholderType:mayBeDeltaPackage:isFromSerializedPlaceholder:error:]"; IDERunOperationFailingWorker = IDELaunchiPhoneSimulatorLauncher; SimCallingSelector = "installApplication:withOptions:error:"; SourceFileLine = 981; } Failed to create app extension placeholder for /Users/eddiepeng/Library/Developer/Xcode/DerivedData/Omnit-bjygrdfdoommzzcnbjuvwoakvdkw/Build/Products/Release-iphonesimulator/Omnit.app/PlugIns/OmnitTranslationExtension.appex Domain: IXErrorDomain Code: 2 Failure Reason: Failed to create promise. User Info: { FunctionName = "+[IXPlaceholder _placeholderForBundle:client:withParent:installType:metadata:placeholderType:mayBeDeltaPackage:isFromSerializedPlaceholder:error:]"; SourceFileLine = 981; } Failed to set placeholder attributes top.delta17.Omnit.OmnitTranslationExtension Domain: IXErrorDomain Code: 2 Failure Reason: Failed to create promise. User Info: { FunctionName = "+[IXPlaceholder _placeholderForBundle:client:withParent:installType:metadata:placeholderType:mayBeDeltaPackage:isFromSerializedPlaceholder:error:]"; SourceFileLine = 818; } extensionDictionary must be set in placeholder attributes for an app extension placeholder Domain: IXErrorDomain Code: 17 Failure Reason: Invalid placeholder attributes. User Info: { FunctionName = "-[IXPlaceholder setPlaceholderAttributes:error:]"; SourceFileLine = 1999; } Event Metadata: com.apple.dt.IDERunOperationWorkerFinished : { "device_identifier" = "E645E32D-57B1-4A24-95A4-6BFD0062F51D"; "device_model" = "iPhone17,3"; "device_osBuild" = "18.4 (22E238)"; "device_platform" = "com.apple.platform.iphonesimulator"; "device_thinningType" = "iPhone17,3"; "dvt_coredevice_version" = "443.19"; "dvt_coresimulator_version" = "1010.10"; "dvt_mobiledevice_version" = "1784.102.1"; "launchSession_schemeCommand" = Run; "launchSession_state" = 1; "launchSession_targetArch" = arm64; "operation_duration_ms" = 38; "operation_errorCode" = 2; "operation_errorDomain" = IXErrorDomain; "operation_errorWorker" = IDELaunchiPhoneSimulatorLauncher; "operation_name" = IDERunOperationWorkerGroup; "param_debugger_attachToExtensions" = 0; "param_debugger_attachToXPC" = 1; "param_debugger_type" = 3; "param_destination_isProxy" = 0; "param_destination_platform" = "com.apple.platform.iphonesimulator"; "param_diag_113575882_enable" = 0; "param_diag_MainThreadChecker_stopOnIssue" = 0; "param_diag_MallocStackLogging_enableDuringAttach" = 0; "param_diag_MallocStackLogging_enableForXPC" = 1; "param_diag_allowLocationSimulation" = 1; "param_diag_checker_tpc_enable" = 1; "param_diag_gpu_frameCapture_enable" = 0; "param_diag_gpu_shaderValidation_enable" = 0; "param_diag_gpu_validation_enable" = 0; "param_diag_guardMalloc_enable" = 0; "param_diag_memoryGraphOnResourceException" = 0; "param_diag_mtc_enable" = 1; "param_diag_queueDebugging_enable" = 1; "param_diag_runtimeProfile_generate" = 0; "param_diag_sanitizer_asan_enable" = 0; "param_diag_sanitizer_tsan_enable" = 0; "param_diag_sanitizer_tsan_stopOnIssue" = 0; "param_diag_sanitizer_ubsan_enable" = 0; "param_diag_sanitizer_ubsan_stopOnIssue" = 0; "param_diag_showNonLocalizedStrings" = 0; "param_diag_viewDebugging_enabled" = 1; "param_diag_viewDebugging_insertDylibOnLaunch" = 1; "param_install_style" = 2; "param_launcher_UID" = 2; "param_launcher_allowDeviceSensorReplayData" = 0; "param_launcher_kind" = 0; "param_launcher_style" = 0; "param_launcher_substyle" = 0; "param_runnable_appExtensionHostRunMode" = 0; "param_runnable_productType" = "com.apple.product-type.application"; "param_structuredConsoleMode" = 1; "param_testing_launchedForTesting" = 0; "param_testing_suppressSimulatorApp" = 0; "param_testing_usingCLI" = 0; "sdk_canonicalName" = "iphonesimulator18.4"; "sdk_osVersion" = "18.4"; "sdk_variant" = iphonesimulator; } System Information macOS Version 15.3.2 (Build 24D81) Xcode 16.3 (23785) (Build 16E140) Timestamp: 2025-04-02T01:20:32+08:00

I have an iOS app which has an embedded Quicklook Extension that works perfectly - in the Files app on iPad/iPhone I can QuickLook view and edit custom file types without problems. However, when I run the app on a Silicon Mac using Mac Catalyst (or (Made For iPad)) while the Finder does recognise the custom file types (allowing "Open in…" or double-clicking to open) it does not show the Quick Look extension. How do I add Finder QuickLook extension functionality to a Mac Catalyst app? Thanks

How do I handle force quit in Swift? I received crash reports during a tesflight test. I didn't understand what it was: none of my app's symbols were present, and Xcode didn't want them either... unlike two others who were very specific. By doing a few Google queries, I saw that [UIApplication _terminateWithStatus:] + 136 (UIApplication.m:7578). Accompanied by a SIGSEV... corresponded to a simple thing: it's a crash during a force quit. I tested it with two iPhones, connected to my Mac, and launched the app from Xcode on each of them. I waited a bit, then quit it. It immediately went into the background and waited to launch operations with BackgroundTaskManager. I went to the app carousel and quit it with a swipe of my finger. I immediately see in the log that "sceneDidDisconnect" from SceneDelegate is called... then the immediate crash occurs, with the same elements as those received during the test flight crashlog.crash : SIGSEV and [UIApplication _terminateWithStatus:] and identical elements thereafter. And this applies regardless of what I put in "SceneDidDisconnect," a print, and something to close the BGtasks if they are running (but iOS should normally kill them too, right?) .. 1 or 2 secondes after it crashes. At the moment of the crash, the Xcode cursor is positioned on "class Appdelegate" in AppDelegate. class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate { My question is: how do I handle force quit in Swift? I have another Objective-C application that does the same thing and runs identical operations in the background. If I force quit it, there is no crash.

If I run an app with a message filter extension, it's triggered for all the prepaid unknown numbers and its not triggered for all the unknown postpaid numbers. Any idea, how to trigger for postpaid unknown numbers?.

We are developing a parental control application in SwiftUI with features like app blocking and screen time management. We are using the Family Control API along with Apple Family Sharing, allowing parents to add multiple children to the family group. We have followed the apple documentation still we are facing following issues: App Blocking Issue: The family picker does not display each child's name separately or their apps individually. Instead, it shows all children's apps together, making it difficult to block apps for a specific child. Screen Time Data Issue: We receive the total screen time usage for all children combined rather than separate screen time data for each child. Syncing Delay: When a new child is added to the Family Sharing group, we are unsure how long it takes for their apps to sync and appear on the parent’s device.