Posts under App & System Services topic

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Can not replicate the Apple Review error
Hello there! So Im trying to upload an app to the App Store for iphone and Ipad, but from the revision team the same message always appears, the app crash. So I know the "it works on my computer" sounds bad but....works on my computer and my test system. Dont know what to do since I dont know how to replicate the error. This is the rely they sent me: Issue Description The app exhibited one or more bugs that would negatively impact users. Bug description: at time of review the app’s interface went blank at launch. Review device details: Device type: iPad Air (5th generation) OS version: iPadOS 18.4.1 Anyone has any idea on how can I replicate the error and maybe check the logs? Im completely blind on this one.
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Apr ’25
AppStore response times for the store test environment to make purchases is very long.
Currently, over the xcode environment to do the testing of product subscriptions through appstore are working correctly using the storeKit. When deployed in testflight to do the testing over the integration environment, the store response times are being excessively high, in excess of 20 minutes. This behavior is not replicated on Xcode, and is happening on recent versions uploaded to testflight, as earlier versions that were already tested and are currently in production. In addition the communication between the appstore webhook and the BE is also failing in this environment. It is being blocked to generate any test to be able to launch to production.
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Apr ’25
Issue with Test Users in Sandbox Environment Unable to Complete Payment on Apple Pay Demo Page
I am writing regarding an issue I have encountered while attempting to complete a payment using test users created within the Sandbox environment of Apple Pay. The problem persists specifically when trying to make payments through the demo page at https://applepaydemo.apple.com/. Problem Description: When initiating a payment process with either of the following test user accounts. The flow proceeds as follows: The Apple Pay window appears correctly. Processing begins but does not conclude successfully. After processing concludes, there is no prompt for 'Pay with Touch ID'. Additional Information: Device & OS Version: MacOS 15.3.2 Browser & Version: Safari 18.3.1 Real Device or Simulator: Real device used First Occurrence: Before January 1st, 2025 Custom Configurations or Backend Used: No custom configurations or backend modifications are being utilized during interaction with the demo page. Could you please provide assistance in resolving this issue?
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May ’25
Does Apple Screen Time API Allow Access to App Usage Data for Custom Rewards?
Hi everyone, I'm working on an app for parents and kids where parents can define screen time goals or restrict usage of certain app categories (like social media or games). If the kid follows those rules—for example, by using their device less or avoiding restricted categories—they would earn points or rewards in the app. I’ve been exploring if the Apple Screen Time API allows developers to access this kind of data (like total screen time, app usage by category, etc.) so that I can track the kid’s behavior and reward them accordingly. Is it possible to programmatically access this data and implement such a reward system within my app? If so, what’s the best way to get started or which APIs should I look into? Thanks in advance for your help!
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Apr ’25
Will transferring app affect iCloud's Documents folder access?
My app uses iCloud to let users sync their files via their private iCloud Drive, which does not use CloudKit. FileManager.default.url(forUbiquityContainerIdentifier: nil)?.appending(component: "Documents") I plan to transfer my app to another developer account, but I'm afraid it will affect the access of the app to the existing files in that folder. Apple documentation doesn't mention this case. Has anyone done this before and can confirm if the app will continue to work normally after transferring? Thanks
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May ’25
How to handle subscription notifications with future purchase date
Our app server has subscription feature and processes purchase life cycles based on App Store Server Notification v1. Last year, when users purchased subscriptions during the following timeframe, we received "INITIAL_BUY" notifications with "unified_receipt.Latest_receipt_info.purchase_date" set to future date(approx. 1 hour after the actual purchase). 2024-11-03 08:00:00 - 2024-11-03 09:00:00 Etc/GMT (UTC) For example, we received the following v1 notification at 2024-11-03 08:36:33 Etc/GMT. "notification_type": "INITIAL_BUY" "unified_receipt.latest_receipt_info[].purchase_date": "2024-11-03 09:36:02 Etc/GMT" Our server grants subscription entitlement based on "purchase_date" so the users had to wait 1 hour before the subscription features became available. The timeframe coincided with the end of daylight saving time in the U.S., so we assume that it affected the behavior, but our country doesn't adopt daylight saving time. We have some questions regarding this behavior. In countries without daylight saving time, how should we handle such notifications with future purchase date in order to properly grant subscription entitlement? In App Store Server Notification v2, could purchase date be set to future date at the end of daylight saving time in the U.S., just as in v1 notifications? JWSTransactionDecodedPayload.purchaseDate
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May ’25
How to send events from Bluetooth device to server when app is in background
Hi. I have a device that is connected to my phone and sends few bytes at different times. The app caches those events and sends them to server as soon as internet is available. This all works, but when app goes to background or user locks the phone then after few seconds app has no internet access. It still caches the events that are important but unable to send them until app is brought to foreground. How can app still connect to server? I saw few posts saying they solved it by using URLSession with a background mode, but in my case it says: Terminating app due to uncaught exception 'NSGenericException', reason: 'Upload tasks from NSData are not supported in background sessions.' As I understood URLSession can download or upload files, but the events comming from BLE device are few bytes, so how to send them to server as soon as possible? Found this stackoverflow question and gave me some hopes https://stackoverflow.com/questions/63016680/sending-network-request-after-bluetooth-update-while-ios-app-is-in-background but no examples at all.
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May ’25
Thunderbolt PCIe 4-devices by daisy chain connection problem
Hello everyone I have been developing PCIe device driver through Thunderbolt. However, it was confirmed that up to three devices connected to the daisy chain worked normally, but the fourth device failed to operate the _CopyDeviceMemoryWithIndex() function for connection with the BAR0 App and did not work properly. The standard specification of Thunderbolt 3/4 is said to be supported by daisy chain connection up to 6 units, but in reality, it is only 3 units, so I ask the forum for technical confirmation. Of course total 4 device by 2-port x 2-device daisy chain connecting has working well. And the PCI entry in System information app indicates that all devices have normal load of the PCIe device driver.
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Apr ’25
Inquiry Regarding Apple Pay Currency Support
Team, We are currently checking out on Apple Pay using ALL and MRU as currencies. We have authorized the payment via Touch ID; however, we are not receiving the onPaymentAuthorized event. Could you please confirm if Apple Pay supports ALL and MRU currencies? We have confirmed that it works with other currencies. Thank you!
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40
Apr ’25
Matter device data pipeline
I'm device manufacturer and in future planning to get my device matter certified. If I want my device data for analytics purpose into my cloud than what is the best way possible. My research says that the most latest approach suggested by apple is, developing a custom mobile app using device homekit sdk and subscribe to device state and send it to my cloud. If I go that route, will it work even though the device was onboarded via homekit app and homekit hub device is also there. I want to make sure that both path will be active, device to hub to home app and device to custom app to my cloud, and both on matter ecosystem. The homekit sdk and matter support mentioned here https://aninterestingwebsite.com/apple-home/matter, are these two same thing?
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May ’25
ForEach and RandomAccessCollection
I'm trying to build a custom FetchRequest that I can use outside a View. I've built the following ObservableFetchRequest class based on this article: https://augmentedcode.io/2023/04/03/nsfetchedresultscontroller-wrapper-for-swiftui-view-models @Observable @MainActor class ObservableFetchRequest<Result: Storable>: NSObject, @preconcurrency NSFetchedResultsControllerDelegate { private let controller: NSFetchedResultsController<Result.E> private var results: [Result] = [] init(context: NSManagedObjectContext = .default, predicate: NSPredicate? = Result.E.defaultPredicate(), sortDescriptors: [NSSortDescriptor] = Result.E.sortDescripors) { guard let request = Result.E.fetchRequest() as? NSFetchRequest<Result.E> else { fatalError("Failed to create fetch request for \(Result.self)") } request.predicate = predicate request.sortDescriptors = sortDescriptors controller = NSFetchedResultsController(fetchRequest: request, managedObjectContext: context, sectionNameKeyPath: nil, cacheName: nil) super.init() controller.delegate = self fetch() } private func fetch() { do { try controller.performFetch() refresh() } catch { fatalError("Failed to fetch results for \(Result.self)") } } private func refresh() { results = controller.fetchedObjects?.map { Result($0) } ?? [] } var predicate: NSPredicate? { get { controller.fetchRequest.predicate } set { controller.fetchRequest.predicate = newValue fetch() } } var sortDescriptors: [NSSortDescriptor] { get { controller.fetchRequest.sortDescriptors ?? [] } set { controller.fetchRequest.sortDescriptors = newValue.isEmpty ? nil : newValue fetch() } } internal func controllerDidChangeContent(_ controller: NSFetchedResultsController<any NSFetchRequestResult>) { refresh() } } Till this point, everything works fine. Then, I conformed my class to RandomAccessCollection, so I could use in a ForEach loop without having to access the results property. extension ObservableFetchRequest: @preconcurrency RandomAccessCollection, @preconcurrency MutableCollection { subscript(position: Index) -> Result { get { results[position] } set { results[position] = newValue } } public var endIndex: Index { results.endIndex } public var indices: Indices { results.indices } public var startIndex: Index { results.startIndex } public func distance(from start: Index, to end: Index) -> Int { results.distance(from: start, to: end) } public func index(_ i: Index, offsetBy distance: Int) -> Index { results.index(i, offsetBy: distance) } public func index(_ i: Index, offsetBy distance: Int, limitedBy limit: Index) -> Index? { results.index(i, offsetBy: distance, limitedBy: limit) } public func index(after i: Index) -> Index { results.index(after: i) } public func index(before i: Index) -> Index { results.index(before: i) } public typealias Element = Result public typealias Index = Int } The issue is, when I update the ObservableFetchRequest predicate while searching, it causes a Index out of range error in the Collection subscript because the ForEach loop (or a List loop) access a old version of the array when the item property is optional. List(request, selection: $selection) { item in VStack(alignment: .leading) { Text(item.content) if let information = item.information { // here's the issue, if I leave this out, everything works Text(information) .font(.callout) .foregroundStyle(.secondary) } } .tag(item.id) .contextMenu { if Item.self is Client.Type { Button("Editar") { openWindow(ClientView(client: item as! Client), id: item.id!) } } } } Is it some RandomAccessCollection issue or a SwiftUI bug?
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May ’25
怎样读取健康记录心理状态的情境,并将自己APP的数据传入进去
读取是不是解析 metadata 的对应键来获取值对吧~但我看了相关开发文档好像没找到这个的键是什么~于是也没法写入到对应的,现在只能自定义键来进行写入 但是这样写入后无法显示在心情下方的影响因素后面~ 这个 key 是没公开的吗还是说我方法弄错了~请各位大大指教
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May ’25
A proper design approach for implementing a data logger using BLE in an iOS app.
Thank you for always reading my questions. This time, I'd like to ask some specific questions to gain a deeper understanding of iOS CoreBluetooth. In the previous question, we learned that although iOS can perform BLE scanning in the background, it is not suitable for use as a data logger. I was also taught that when using it as a data logger, the iOS app should use GATT communication, and that instead of reading data from the device one by one, it is recommended to store large amounts of data on the device and connect at an appropriate time (such as when the iOS app enters the foreground) to retrieve the data all at once. My requirements are the same as last time. I want to send data from a device equipped with some kind of sensor via BLE and display it in a graph in the iOS app. Data should be acquired every few to tens of seconds and reflected immediately in the graph. Measurements may take up to 24 hours at most. I would like to avoid making any major changes to the device. Also, it is unclear whether there will be enough memory for the data logger for 24 hours. Therefore, I am first looking for an appropriate communication method for the iOS app. iOS is smart and convenient, so I think users will check the measurement status every time they use this iOS app.Therefore, I want to be able to check the changes from the start of measurement to the present in a graph as soon as the app is launched. I would like to measure data from multiple devices (e.g. 5 devices) at the same time. I have a question based on the above requirements. When thinking about the best way to avoid making changes to the device, the only way I could come up with, as someone with insufficient iOS technology, is to keep the connection open via GATT communication and continue to obtain data. However, does iOS GATT communication have any limitations in this regard? Will the OS automatically disconnect GATT communication at a certain time? Also, if that happens, is there a way to automatically reconnect and obtain the data? Is it possible to smoothly obtain data using iOS GATT communication without any particular restrictions even in the background? Are any other permissions required? Regarding the sixth requirement. Until last time, with BLE scanning, even if there were multiple devices, the iOS app could measure the data for as many devices as it wanted, but this time, how many devices can be read? In the case of GATT communication with iOS CoreBluetooth, can multiple devices maintain a long connection? Or is it basically better to have one device per connection when creating such an app for iOS? I would like to know if there are any restrictions or points to be careful of when using GATT communication with multiple devices. I'm sorry for broadening my question, but if neither question 1 nor question 2 works, it will put a burden on the design of the device. If data is stored on the device, is it possible to automatically and periodically connect to the device at a set time interval (for example, once an hour, allowing for some margin of error) when the iOS app is in the background, and obtain log data from the device? If you can think of any other best methods, please feel free to let me know. Also, I'd be happy if you could reply with any reference materials or URLs. Please note that our response may be delayed.
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May ’25
Determine outgoing flow source IPs without allowing data leakage using NEFilterDataProvider
I'm looking for help with a network extension filtering issue. Specifically, we have a subclass of NEFilterDataProvider that is used to filter flows based upon a set of rules, including source IP and destination IP. We've run into an issue where the source IP is frequently 0.0.0.0 (or the IPv6 equivalent) on outgoing flows. This has made it so rules based upon source IP don't work. This is also an issue as we report these connections, but we're lacking critical data. We were able to work around the issue somewhat by keeping a list of flows that we allow that we periodically check to see if the source IP is available, and then report after it becomes available. We also considered doing a "peekBytes" to allow a bit of data to flow and then recheck the flow, but we don't want to allow data leakage on connections that should be blocked because of the source IP. Is there a way to force the operating system or network extension frameworks to determine the source IP for an outbound flow without allowing any bytes to flow to the network? STEPS TO REPRODUCE Create a network filtering extension for filtering flows using NEFilterDataProvider See that when handleNewFlow: is called, the outgoing flow lacks the source IP (is 0.0.0.0) in most cases There is this post that is discussing a similar question, though for a slightly different reason. I imagine the answer to this and the other post will be related, at least as far as NEFilterDataProvider:handleNewFlow not having source IP is considered. Thanks!
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Apr ’25
/The notifications/test request was successful, but there were no notification messages from the Apple Store
requestUrl:https://api.storekit-sandbox.itunes.apple.com/inApps/v1/notifications/test method:Post responseCode:200 testNotificationToken:06beba6c-7587-44f6-a4b8-f12b11db6061_1745832671126 Request environment: ①APP from: TestFlight ②Apple acount : Sandbox account ③Apple originalTransactionId: 2000000907966801 App Store sandbox server notification configuration is fine(https://*.com/v2/apple_refund_notify), I have tried many times, but have not received any notification from Apple. Is this API not working?
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Apr ’25
not getting stable release versions of some apps from the ios app store
I have been receiving beta software from the iPad App Store, despite not being enrolled in a beta program. Additionally, I do not have TestFlight or the Feedback app installed on my device. There are no certificates or profiles displayed either. I am using the App Store app that comes preinstalled on my device (note that I am not located in Europe). My iPad has been experiencing significant bugs, including numerous screen glitches and periods of sluggishness. Furthermore, numerous applications have crashed frequently. I was able to confirm that I was receiving beta software because the crash reports include beta identifier numbers. According to Apple documentation regarding analytic reports, a beta identifier will only be visible for beta applications. anyone know what could be going on or how to fix this?
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Apr ’25
Core Data and Swift 6 concurrency: returning an NSManagedObject
We're in the process of migrating our app to the Swift 6 language mode. I have hit a road block that I cannot wrap my head around, and it concerns Core Data and how we work with NSManagedObject instances. Greatly simplied, our Core Data stack looks like this: class CoreDataStack { private let persistentContainer: NSPersistentContainer var viewContext: NSManagedObjectContext { persistentContainer.viewContext } } For accessing the database, we provide Controller classes such as e.g. class PersonController { private let coreDataStack: CoreDataStack func fetchPerson(byName name: String) async throws -> Person? { try await coreDataStack.viewContext.perform { let fetchRequest = NSFetchRequest<Person>() fetchRequest.predicate = NSPredicate(format: "name == %@", name) return try fetchRequest.execute().first } } } Our view controllers use such controllers to fetch objects and populate their UI with it: class MyViewController: UIViewController { private let chatController: PersonController private let ageLabel: UILabel func populateAgeLabel(name: String) { Task { let person = try? await chatController.fetchPerson(byName: name) ageLabel.text = "\(person?.age ?? 0)" } } } This works very well, and there are no concurrency problems since the managed objects are fetched from the view context and accessed only in the main thread. When turning on Swift 6 language mode, however, the compiler complains about the line calling the controller method: Non-sendable result type 'Person?' cannot be sent from nonisolated context in call to instance method 'fetchPerson(byName:)' Ok, fair enough, NSManagedObject is not Sendable. No biggie, just add @MainActor to the controller method, so it can be called from view controllers which are also main actor. However, now the compiler shows the same error at the controller method calling viewContext.perform: Non-sendable result type 'Person?' cannot be sent from nonisolated context in call to instance method 'perform(schedule:_:)' And now I'm stumped. Does this mean NSManageObject instances cannot even be returned from calls to NSManagedObjectContext.perform? Ever? Even though in this case, @MainActor matches the context's actor isolation (since it's the view context)? Of course, in this simple example the controller method could just return the age directly, and more complex scenarios could return Sendable data structures that are instantiated inside the perform closure. But is that really the only legal solution? That would mean a huge refactoring challenge for our app, since we use NSManageObject instances fetched from the view context everywhere. That's what the view context is for, right? tl;dr: is it possible to return NSManagedObject instances fetched from the view context with Swift 6 strict concurrency enabled, and if so how?
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Apr ’25
/usr/bin/shortcuts no longer works in 14.7.5 (23H527) ?
I've been using /usr/bin/shortcuts for various tasks (eg. Quicksilver uses it to list and run shortcuts), and after updating from 14.7.4 to 14.7.5 the tool gets killed on startup. Eg. here is what it looks like in my shell: ❯ shortcuts list zsh: killed shortcuts list (And this is regardless of whether I have "full disk access" or "developer tools" toggled on or off for iTerm.) Looking at system logs it seems like the binary is missing an entitlement, which causes MACF / Gatekeeper to throw a fit: 2025-04-12 18:38:48.847576 kernel: mac_vnode_check_signature: /usr/bin/shortcuts: code signature validation failed fatally: When validating /usr/bin/shortcuts: in-kernel: com.apple.shortcuts.ShortcutsCommandLine disallowed without com.apple.private.security.restricted-application-groups 2025-04-12 18:38:48.847582 kernel: validation of code signature failed through MACF policy: 1 2025-04-12 18:38:48.847583 kernel: check_signature[pid: 2475]: error = 1 2025-04-12 18:38:48.847587 kernel: proc 95761: load code signature error 4 for file "shortcuts" 2025-04-12 18:38:48.847613 kernel: exec_mach_imgact: not running binary "shortcuts" built against preview arm64e ABI 2025-04-12 18:38:48.855481 syspolicyd: (Security) SecTrustEvaluateIfNecessary 2025-04-12 18:38:48.857970 syspolicyd: [com.apple.syspolicy.exec:default] GK evaluateScanResult: 2, PST: (path: /usr/bin/shortcuts), (team: (null)), (id: (null)), (bundle_id: (null)), 0, 0, 1, 0, 1, 1, 0evaluateScanResult: 2, PST: (path: /usr/bin/shortcuts), (team: (null)), (id: (null)), (bundle_id: (null)), 0, 0, 1, 0, 1, 1, 0 I used Time Machine to compare the binary's entitlements between 14.7.4 and 14.7.5, and looks like in 14.7.5 /usr/bin/shortcuts indeed is missing the com.apple.private.security.restricted-application-groups entitlement that 14.7.4 had. The old binary had these two entitlements that the new one doesn't: [Key] com.apple.private.security.restricted-application-groups [Value] [Array] [String] group.com.apple.shortcuts [String] group.is.workflow.my.app [String] group.is.workflow.shortcuts [Key] com.apple.security.application-groups [Value] [Array] [String] group.com.apple.shortcuts [String] group.is.workflow.my.app [String] group.is.workflow.shortcuts Is there a sensible workaround for this (and by "sensible" I mean something that'd allow me to keep using the tool)? (I already asked this on the support forums but I figured I might as well ask here too)
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Apr ’25
Can not replicate the Apple Review error
Hello there! So Im trying to upload an app to the App Store for iphone and Ipad, but from the revision team the same message always appears, the app crash. So I know the "it works on my computer" sounds bad but....works on my computer and my test system. Dont know what to do since I dont know how to replicate the error. This is the rely they sent me: Issue Description The app exhibited one or more bugs that would negatively impact users. Bug description: at time of review the app’s interface went blank at launch. Review device details: Device type: iPad Air (5th generation) OS version: iPadOS 18.4.1 Anyone has any idea on how can I replicate the error and maybe check the logs? Im completely blind on this one.
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81
Activity
Apr ’25
AppStore response times for the store test environment to make purchases is very long.
Currently, over the xcode environment to do the testing of product subscriptions through appstore are working correctly using the storeKit. When deployed in testflight to do the testing over the integration environment, the store response times are being excessively high, in excess of 20 minutes. This behavior is not replicated on Xcode, and is happening on recent versions uploaded to testflight, as earlier versions that were already tested and are currently in production. In addition the communication between the appstore webhook and the BE is also failing in this environment. It is being blocked to generate any test to be able to launch to production.
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1
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214
Activity
Apr ’25
Some issues regarding the utilization of Matter Support
During the commissioning process of our app, the following two errors frequently occur: 1.Could not find system commissioner pairing for newly staged server with identifier <private> in all pairings 2.Failed to open pairing window on the device I have uploaded the log with the ID: FB17343511 Could you assist us in resolving this issue? Thank you.
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112
Activity
Apr ’25
Issue with Test Users in Sandbox Environment Unable to Complete Payment on Apple Pay Demo Page
I am writing regarding an issue I have encountered while attempting to complete a payment using test users created within the Sandbox environment of Apple Pay. The problem persists specifically when trying to make payments through the demo page at https://applepaydemo.apple.com/. Problem Description: When initiating a payment process with either of the following test user accounts. The flow proceeds as follows: The Apple Pay window appears correctly. Processing begins but does not conclude successfully. After processing concludes, there is no prompt for 'Pay with Touch ID'. Additional Information: Device & OS Version: MacOS 15.3.2 Browser & Version: Safari 18.3.1 Real Device or Simulator: Real device used First Occurrence: Before January 1st, 2025 Custom Configurations or Backend Used: No custom configurations or backend modifications are being utilized during interaction with the demo page. Could you please provide assistance in resolving this issue?
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127
Activity
May ’25
Does Apple Screen Time API Allow Access to App Usage Data for Custom Rewards?
Hi everyone, I'm working on an app for parents and kids where parents can define screen time goals or restrict usage of certain app categories (like social media or games). If the kid follows those rules—for example, by using their device less or avoiding restricted categories—they would earn points or rewards in the app. I’ve been exploring if the Apple Screen Time API allows developers to access this kind of data (like total screen time, app usage by category, etc.) so that I can track the kid’s behavior and reward them accordingly. Is it possible to programmatically access this data and implement such a reward system within my app? If so, what’s the best way to get started or which APIs should I look into? Thanks in advance for your help!
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97
Activity
Apr ’25
Will transferring app affect iCloud's Documents folder access?
My app uses iCloud to let users sync their files via their private iCloud Drive, which does not use CloudKit. FileManager.default.url(forUbiquityContainerIdentifier: nil)?.appending(component: "Documents") I plan to transfer my app to another developer account, but I'm afraid it will affect the access of the app to the existing files in that folder. Apple documentation doesn't mention this case. Has anyone done this before and can confirm if the app will continue to work normally after transferring? Thanks
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102
Activity
May ’25
How to handle subscription notifications with future purchase date
Our app server has subscription feature and processes purchase life cycles based on App Store Server Notification v1. Last year, when users purchased subscriptions during the following timeframe, we received "INITIAL_BUY" notifications with "unified_receipt.Latest_receipt_info.purchase_date" set to future date(approx. 1 hour after the actual purchase). 2024-11-03 08:00:00 - 2024-11-03 09:00:00 Etc/GMT (UTC) For example, we received the following v1 notification at 2024-11-03 08:36:33 Etc/GMT. "notification_type": "INITIAL_BUY" "unified_receipt.latest_receipt_info[].purchase_date": "2024-11-03 09:36:02 Etc/GMT" Our server grants subscription entitlement based on "purchase_date" so the users had to wait 1 hour before the subscription features became available. The timeframe coincided with the end of daylight saving time in the U.S., so we assume that it affected the behavior, but our country doesn't adopt daylight saving time. We have some questions regarding this behavior. In countries without daylight saving time, how should we handle such notifications with future purchase date in order to properly grant subscription entitlement? In App Store Server Notification v2, could purchase date be set to future date at the end of daylight saving time in the U.S., just as in v1 notifications? JWSTransactionDecodedPayload.purchaseDate
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103
Activity
May ’25
How to send events from Bluetooth device to server when app is in background
Hi. I have a device that is connected to my phone and sends few bytes at different times. The app caches those events and sends them to server as soon as internet is available. This all works, but when app goes to background or user locks the phone then after few seconds app has no internet access. It still caches the events that are important but unable to send them until app is brought to foreground. How can app still connect to server? I saw few posts saying they solved it by using URLSession with a background mode, but in my case it says: Terminating app due to uncaught exception 'NSGenericException', reason: 'Upload tasks from NSData are not supported in background sessions.' As I understood URLSession can download or upload files, but the events comming from BLE device are few bytes, so how to send them to server as soon as possible? Found this stackoverflow question and gave me some hopes https://stackoverflow.com/questions/63016680/sending-network-request-after-bluetooth-update-while-ios-app-is-in-background but no examples at all.
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1
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176
Activity
May ’25
The frequency of uwb background ranging
Is there a way to increase the frequency of UWB background ranging?
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104
Activity
Apr ’25
Thunderbolt PCIe 4-devices by daisy chain connection problem
Hello everyone I have been developing PCIe device driver through Thunderbolt. However, it was confirmed that up to three devices connected to the daisy chain worked normally, but the fourth device failed to operate the _CopyDeviceMemoryWithIndex() function for connection with the BAR0 App and did not work properly. The standard specification of Thunderbolt 3/4 is said to be supported by daisy chain connection up to 6 units, but in reality, it is only 3 units, so I ask the forum for technical confirmation. Of course total 4 device by 2-port x 2-device daisy chain connecting has working well. And the PCI entry in System information app indicates that all devices have normal load of the PCIe device driver.
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1
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132
Activity
Apr ’25
Inquiry Regarding Apple Pay Currency Support
Team, We are currently checking out on Apple Pay using ALL and MRU as currencies. We have authorized the payment via Touch ID; however, we are not receiving the onPaymentAuthorized event. Could you please confirm if Apple Pay supports ALL and MRU currencies? We have confirmed that it works with other currencies. Thank you!
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0
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40
Activity
Apr ’25
Matter device data pipeline
I'm device manufacturer and in future planning to get my device matter certified. If I want my device data for analytics purpose into my cloud than what is the best way possible. My research says that the most latest approach suggested by apple is, developing a custom mobile app using device homekit sdk and subscribe to device state and send it to my cloud. If I go that route, will it work even though the device was onboarded via homekit app and homekit hub device is also there. I want to make sure that both path will be active, device to hub to home app and device to custom app to my cloud, and both on matter ecosystem. The homekit sdk and matter support mentioned here https://aninterestingwebsite.com/apple-home/matter, are these two same thing?
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176
Activity
May ’25
ForEach and RandomAccessCollection
I'm trying to build a custom FetchRequest that I can use outside a View. I've built the following ObservableFetchRequest class based on this article: https://augmentedcode.io/2023/04/03/nsfetchedresultscontroller-wrapper-for-swiftui-view-models @Observable @MainActor class ObservableFetchRequest&lt;Result: Storable&gt;: NSObject, @preconcurrency NSFetchedResultsControllerDelegate { private let controller: NSFetchedResultsController&lt;Result.E&gt; private var results: [Result] = [] init(context: NSManagedObjectContext = .default, predicate: NSPredicate? = Result.E.defaultPredicate(), sortDescriptors: [NSSortDescriptor] = Result.E.sortDescripors) { guard let request = Result.E.fetchRequest() as? NSFetchRequest&lt;Result.E&gt; else { fatalError("Failed to create fetch request for \(Result.self)") } request.predicate = predicate request.sortDescriptors = sortDescriptors controller = NSFetchedResultsController(fetchRequest: request, managedObjectContext: context, sectionNameKeyPath: nil, cacheName: nil) super.init() controller.delegate = self fetch() } private func fetch() { do { try controller.performFetch() refresh() } catch { fatalError("Failed to fetch results for \(Result.self)") } } private func refresh() { results = controller.fetchedObjects?.map { Result($0) } ?? [] } var predicate: NSPredicate? { get { controller.fetchRequest.predicate } set { controller.fetchRequest.predicate = newValue fetch() } } var sortDescriptors: [NSSortDescriptor] { get { controller.fetchRequest.sortDescriptors ?? [] } set { controller.fetchRequest.sortDescriptors = newValue.isEmpty ? nil : newValue fetch() } } internal func controllerDidChangeContent(_ controller: NSFetchedResultsController&lt;any NSFetchRequestResult&gt;) { refresh() } } Till this point, everything works fine. Then, I conformed my class to RandomAccessCollection, so I could use in a ForEach loop without having to access the results property. extension ObservableFetchRequest: @preconcurrency RandomAccessCollection, @preconcurrency MutableCollection { subscript(position: Index) -&gt; Result { get { results[position] } set { results[position] = newValue } } public var endIndex: Index { results.endIndex } public var indices: Indices { results.indices } public var startIndex: Index { results.startIndex } public func distance(from start: Index, to end: Index) -&gt; Int { results.distance(from: start, to: end) } public func index(_ i: Index, offsetBy distance: Int) -&gt; Index { results.index(i, offsetBy: distance) } public func index(_ i: Index, offsetBy distance: Int, limitedBy limit: Index) -&gt; Index? { results.index(i, offsetBy: distance, limitedBy: limit) } public func index(after i: Index) -&gt; Index { results.index(after: i) } public func index(before i: Index) -&gt; Index { results.index(before: i) } public typealias Element = Result public typealias Index = Int } The issue is, when I update the ObservableFetchRequest predicate while searching, it causes a Index out of range error in the Collection subscript because the ForEach loop (or a List loop) access a old version of the array when the item property is optional. List(request, selection: $selection) { item in VStack(alignment: .leading) { Text(item.content) if let information = item.information { // here's the issue, if I leave this out, everything works Text(information) .font(.callout) .foregroundStyle(.secondary) } } .tag(item.id) .contextMenu { if Item.self is Client.Type { Button("Editar") { openWindow(ClientView(client: item as! Client), id: item.id!) } } } } Is it some RandomAccessCollection issue or a SwiftUI bug?
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148
Activity
May ’25
怎样读取健康记录心理状态的情境,并将自己APP的数据传入进去
读取是不是解析 metadata 的对应键来获取值对吧~但我看了相关开发文档好像没找到这个的键是什么~于是也没法写入到对应的,现在只能自定义键来进行写入 但是这样写入后无法显示在心情下方的影响因素后面~ 这个 key 是没公开的吗还是说我方法弄错了~请各位大大指教
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109
Activity
May ’25
A proper design approach for implementing a data logger using BLE in an iOS app.
Thank you for always reading my questions. This time, I'd like to ask some specific questions to gain a deeper understanding of iOS CoreBluetooth. In the previous question, we learned that although iOS can perform BLE scanning in the background, it is not suitable for use as a data logger. I was also taught that when using it as a data logger, the iOS app should use GATT communication, and that instead of reading data from the device one by one, it is recommended to store large amounts of data on the device and connect at an appropriate time (such as when the iOS app enters the foreground) to retrieve the data all at once. My requirements are the same as last time. I want to send data from a device equipped with some kind of sensor via BLE and display it in a graph in the iOS app. Data should be acquired every few to tens of seconds and reflected immediately in the graph. Measurements may take up to 24 hours at most. I would like to avoid making any major changes to the device. Also, it is unclear whether there will be enough memory for the data logger for 24 hours. Therefore, I am first looking for an appropriate communication method for the iOS app. iOS is smart and convenient, so I think users will check the measurement status every time they use this iOS app.Therefore, I want to be able to check the changes from the start of measurement to the present in a graph as soon as the app is launched. I would like to measure data from multiple devices (e.g. 5 devices) at the same time. I have a question based on the above requirements. When thinking about the best way to avoid making changes to the device, the only way I could come up with, as someone with insufficient iOS technology, is to keep the connection open via GATT communication and continue to obtain data. However, does iOS GATT communication have any limitations in this regard? Will the OS automatically disconnect GATT communication at a certain time? Also, if that happens, is there a way to automatically reconnect and obtain the data? Is it possible to smoothly obtain data using iOS GATT communication without any particular restrictions even in the background? Are any other permissions required? Regarding the sixth requirement. Until last time, with BLE scanning, even if there were multiple devices, the iOS app could measure the data for as many devices as it wanted, but this time, how many devices can be read? In the case of GATT communication with iOS CoreBluetooth, can multiple devices maintain a long connection? Or is it basically better to have one device per connection when creating such an app for iOS? I would like to know if there are any restrictions or points to be careful of when using GATT communication with multiple devices. I'm sorry for broadening my question, but if neither question 1 nor question 2 works, it will put a burden on the design of the device. If data is stored on the device, is it possible to automatically and periodically connect to the device at a set time interval (for example, once an hour, allowing for some margin of error) when the iOS app is in the background, and obtain log data from the device? If you can think of any other best methods, please feel free to let me know. Also, I'd be happy if you could reply with any reference materials or URLs. Please note that our response may be delayed.
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172
Activity
May ’25
Determine outgoing flow source IPs without allowing data leakage using NEFilterDataProvider
I'm looking for help with a network extension filtering issue. Specifically, we have a subclass of NEFilterDataProvider that is used to filter flows based upon a set of rules, including source IP and destination IP. We've run into an issue where the source IP is frequently 0.0.0.0 (or the IPv6 equivalent) on outgoing flows. This has made it so rules based upon source IP don't work. This is also an issue as we report these connections, but we're lacking critical data. We were able to work around the issue somewhat by keeping a list of flows that we allow that we periodically check to see if the source IP is available, and then report after it becomes available. We also considered doing a "peekBytes" to allow a bit of data to flow and then recheck the flow, but we don't want to allow data leakage on connections that should be blocked because of the source IP. Is there a way to force the operating system or network extension frameworks to determine the source IP for an outbound flow without allowing any bytes to flow to the network? STEPS TO REPRODUCE Create a network filtering extension for filtering flows using NEFilterDataProvider See that when handleNewFlow: is called, the outgoing flow lacks the source IP (is 0.0.0.0) in most cases There is this post that is discussing a similar question, though for a slightly different reason. I imagine the answer to this and the other post will be related, at least as far as NEFilterDataProvider:handleNewFlow not having source IP is considered. Thanks!
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185
Activity
Apr ’25
/The notifications/test request was successful, but there were no notification messages from the Apple Store
requestUrl:https://api.storekit-sandbox.itunes.apple.com/inApps/v1/notifications/test method:Post responseCode:200 testNotificationToken:06beba6c-7587-44f6-a4b8-f12b11db6061_1745832671126 Request environment: ①APP from: TestFlight ②Apple acount : Sandbox account ③Apple originalTransactionId: 2000000907966801 App Store sandbox server notification configuration is fine(https://*.com/v2/apple_refund_notify), I have tried many times, but have not received any notification from Apple. Is this API not working?
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149
Activity
Apr ’25
not getting stable release versions of some apps from the ios app store
I have been receiving beta software from the iPad App Store, despite not being enrolled in a beta program. Additionally, I do not have TestFlight or the Feedback app installed on my device. There are no certificates or profiles displayed either. I am using the App Store app that comes preinstalled on my device (note that I am not located in Europe). My iPad has been experiencing significant bugs, including numerous screen glitches and periods of sluggishness. Furthermore, numerous applications have crashed frequently. I was able to confirm that I was receiving beta software because the crash reports include beta identifier numbers. According to Apple documentation regarding analytic reports, a beta identifier will only be visible for beta applications. anyone know what could be going on or how to fix this?
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Activity
Apr ’25
Core Data and Swift 6 concurrency: returning an NSManagedObject
We're in the process of migrating our app to the Swift 6 language mode. I have hit a road block that I cannot wrap my head around, and it concerns Core Data and how we work with NSManagedObject instances. Greatly simplied, our Core Data stack looks like this: class CoreDataStack { private let persistentContainer: NSPersistentContainer var viewContext: NSManagedObjectContext { persistentContainer.viewContext } } For accessing the database, we provide Controller classes such as e.g. class PersonController { private let coreDataStack: CoreDataStack func fetchPerson(byName name: String) async throws -> Person? { try await coreDataStack.viewContext.perform { let fetchRequest = NSFetchRequest<Person>() fetchRequest.predicate = NSPredicate(format: "name == %@", name) return try fetchRequest.execute().first } } } Our view controllers use such controllers to fetch objects and populate their UI with it: class MyViewController: UIViewController { private let chatController: PersonController private let ageLabel: UILabel func populateAgeLabel(name: String) { Task { let person = try? await chatController.fetchPerson(byName: name) ageLabel.text = "\(person?.age ?? 0)" } } } This works very well, and there are no concurrency problems since the managed objects are fetched from the view context and accessed only in the main thread. When turning on Swift 6 language mode, however, the compiler complains about the line calling the controller method: Non-sendable result type 'Person?' cannot be sent from nonisolated context in call to instance method 'fetchPerson(byName:)' Ok, fair enough, NSManagedObject is not Sendable. No biggie, just add @MainActor to the controller method, so it can be called from view controllers which are also main actor. However, now the compiler shows the same error at the controller method calling viewContext.perform: Non-sendable result type 'Person?' cannot be sent from nonisolated context in call to instance method 'perform(schedule:_:)' And now I'm stumped. Does this mean NSManageObject instances cannot even be returned from calls to NSManagedObjectContext.perform? Ever? Even though in this case, @MainActor matches the context's actor isolation (since it's the view context)? Of course, in this simple example the controller method could just return the age directly, and more complex scenarios could return Sendable data structures that are instantiated inside the perform closure. But is that really the only legal solution? That would mean a huge refactoring challenge for our app, since we use NSManageObject instances fetched from the view context everywhere. That's what the view context is for, right? tl;dr: is it possible to return NSManagedObject instances fetched from the view context with Swift 6 strict concurrency enabled, and if so how?
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147
Activity
Apr ’25
/usr/bin/shortcuts no longer works in 14.7.5 (23H527) ?
I've been using /usr/bin/shortcuts for various tasks (eg. Quicksilver uses it to list and run shortcuts), and after updating from 14.7.4 to 14.7.5 the tool gets killed on startup. Eg. here is what it looks like in my shell: ❯ shortcuts list zsh: killed shortcuts list (And this is regardless of whether I have "full disk access" or "developer tools" toggled on or off for iTerm.) Looking at system logs it seems like the binary is missing an entitlement, which causes MACF / Gatekeeper to throw a fit: 2025-04-12 18:38:48.847576 kernel: mac_vnode_check_signature: /usr/bin/shortcuts: code signature validation failed fatally: When validating /usr/bin/shortcuts: in-kernel: com.apple.shortcuts.ShortcutsCommandLine disallowed without com.apple.private.security.restricted-application-groups 2025-04-12 18:38:48.847582 kernel: validation of code signature failed through MACF policy: 1 2025-04-12 18:38:48.847583 kernel: check_signature[pid: 2475]: error = 1 2025-04-12 18:38:48.847587 kernel: proc 95761: load code signature error 4 for file "shortcuts" 2025-04-12 18:38:48.847613 kernel: exec_mach_imgact: not running binary "shortcuts" built against preview arm64e ABI 2025-04-12 18:38:48.855481 syspolicyd: (Security) SecTrustEvaluateIfNecessary 2025-04-12 18:38:48.857970 syspolicyd: [com.apple.syspolicy.exec:default] GK evaluateScanResult: 2, PST: (path: /usr/bin/shortcuts), (team: (null)), (id: (null)), (bundle_id: (null)), 0, 0, 1, 0, 1, 1, 0evaluateScanResult: 2, PST: (path: /usr/bin/shortcuts), (team: (null)), (id: (null)), (bundle_id: (null)), 0, 0, 1, 0, 1, 1, 0 I used Time Machine to compare the binary's entitlements between 14.7.4 and 14.7.5, and looks like in 14.7.5 /usr/bin/shortcuts indeed is missing the com.apple.private.security.restricted-application-groups entitlement that 14.7.4 had. The old binary had these two entitlements that the new one doesn't: [Key] com.apple.private.security.restricted-application-groups [Value] [Array] [String] group.com.apple.shortcuts [String] group.is.workflow.my.app [String] group.is.workflow.shortcuts [Key] com.apple.security.application-groups [Value] [Array] [String] group.com.apple.shortcuts [String] group.is.workflow.my.app [String] group.is.workflow.shortcuts Is there a sensible workaround for this (and by "sensible" I mean something that'd allow me to keep using the tool)? (I already asked this on the support forums but I figured I might as well ask here too)
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227
Activity
Apr ’25