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CoreBluetooth and Swift strict concurrency checking
As of iOS 18.3 SDK, Core Bluetooth is still mostly an Objective-C framework: key objects like CBPeripheral inherit from NSObjectProtocol and does not conform to Sendable. CBCentralManager has a convenience initializer that allows the caller to provide a dispatch_queue for delegate callbacks. I want my Swift package that implements Core Bluetooth to conform to Swift 6 strict concurrency checking. It is unsafe to dispatch the delegate events onto my own actor, as the passed in objects are presumably not thread-safe. What is the recommended concurrency safe way to implement Core Bluetooth in Swift 6 with strict concurrency checking enabled?
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Mar ’25
File Provider Extension Conflict Resolution
Hi all, i am trying to implement File Provider Extension. I have some questions about conflict resolution Same file is changed at user local and remote storage before it's synced. File has 2 different version at user local and remote storage. After trigger a new enumeration by calling signalEnumerator for the extension, I want to move user's local version to new conflicted copy (with new itemIdentifier: NSFileProviderItemIdentifier) and import remote storage version to user local (with current itemIdentifier: NSFileProviderItemIdentifier). Then users local version should uploaded to remote storage server with new conflicted copy name Any suggestion about this scenario? Or any documentation about conflict resolution
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Mar ’25
Core Spotlight "Summarization" Oddly Inconsistent
The new Core Spotlight APIs in 18.4 and aligned releases for using Apple Intelligence models to summarize messages sort of work? But I'd say in my testing that only about 80% of the requests I send to Spotlight come back to the delegate with summaries and the rest are never returned. No errors logged in the delegate methods. I can't figure out if there's a pattern. Before I dig apart my code, I'm wondering if anyone else here is using these brand-new APIs and has seen anything similar. It's odd because my code to submit to Spotlight to be summarized is the same for all of my entities but some just never seem to be returned.
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Mar ’25
iCloud -> Containers display name
Hey guys, I'm developing a Swift app, using iCloud to store some data in Containers, and the new Containers I created are iCloud.com.xxx.dev . Therefore, there is a storage called dev in Settings -> icloud -> Manage Account Storage. Currently, the app is still under development and has not been released to the Appstore. My question: Settings -> icloud -> Manage Account Storage does not display my app name and icon, but only the suffix of the Containers id. Will this change after it is released to the Appstore? Are there any other control methods? Thank you
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Mar ’25
Push Live Activity not showing up
This is in an iOS Simulator running iOS 18.2 I send a start live activity push notification from the Push Notifications Console on icloud.developer.apple.com. When checking the console.log output it seems to receive the message, yet the activity does not appear in the dynamic island. (the app is backgrounded when I test this) Can anyone tell me why it's not showing? Starting the same activity from within the app using Swift code works fine. Here is the console.app output: default 11:01:59.060954+0100 apsd <APSConnectionServer: 0x104207b80; development/com.apple.aps.sessioncore.PushNotifications.dev/liveactivitiesd 0>: Sending push to client. UUID: (null) default 11:01:59.061012+0100 apsd Dispatching high priority message on server: <APSConnectionServer: 0x104207b80; development/com.apple.aps.sessioncore.PushNotifications.dev/liveactivitiesd 0> default 11:01:59.061770+0100 apsd Looking up connection on peer: 4304b50 found <APSConnectionServer: 0x104207b80; development/com.apple.aps.sessioncore.PushNotifications.dev/liveactivitiesd 0> default 11:01:59.062283+0100 liveactivitiesd APSXPCDeliverMessageEvent: Created APSIncomingMessage. UUID: (null) default 11:01:59.062642+0100 liveactivitiesd <APSConnection: 0x600003d18000> Delivering message from apsd: <APSIncomingMessage: 0x600000c2e9a0> 2897852514 com.****.****.push-type.liveactivity default 11:01:59.062763+0100 liveactivitiesd <APSConnection: 0x600003d18000> Delivering message from apsd. UUID: (null) default 11:01:59.063374+0100 liveactivitiesd <APSConnection: 0x600003d18000> making delegate (<SessionPushNotifications.APSPushConnection: 0x600000227460>) calls to deliver message 2897852514 { aps = { alert = { "loc-key" = "recording_started_message"; "title-loc-key" = "recording_started_title"; }; attributes = { isRecording = 1; }; "attributes-type" = SWAutomaticTripRecorderActivityAttributes; "content-state" = { distance = 0; }; event = start; timestamp = 1742374701; }; } for topic com.****.****test.push-type.liveactivity default 11:01:59.063440+0100 liveactivitiesd <APSConnection: 0x600003d18000> calling <SessionPushNotifications.APSPushConnection: 0x600000227460> connection:didReceiveIncomingMessage: default 11:01:59.063740+0100 liveactivitiesd Acquiring keep-alive with reason: Received message default 11:01:59.063785+0100 liveactivitiesd Keep-alive reasons: ["Received message": 1] default 11:01:59.063803+0100 liveactivitiesd <APSConnection: 0x600003d18000> returned from <SessionPushNotifications.APSPushConnection: 0x600000227460> connection:didReceiveIncomingMessage: default 11:01:59.063883+0100 liveactivitiesd <APSConnection: 0x600003d18000> responding with an ack for message with guid E19D7D04-12A0-4F1B-B33C-F6BF57EE2EFF default 11:01:59.063921+0100 liveactivitiesd <APSConnection: 0x600003d18000> responding with an ack. UUID: (null) default 11:01:59.063996+0100 apsd Looking up connection on peer: 4304b50 found <APSConnectionServer: 0x104207b80; development/com.apple.aps.sessioncore.PushNotifications.dev/liveactivitiesd 0> default 11:01:59.064019+0100 apsd <APSUserCourier 0x100f052a0 development 0> informed that <APSConnectionServer: 0x104207b80; development/com.apple.aps.sessioncore.PushNotifications.dev/liveactivitiesd 0> acknowledges incoming message with guid E19D7D04-12A0-4F1B-B33C-F6BF57EE2EFF tracingUUID (null) default 11:01:59.064063+0100 liveactivitiesd Received message: topic: Topic(unsuffixed: "com.****.****test"); channelID: nil; token: Optional(128 bytes); eventType: start(SessionPushNotifications.IncomingMessage.EventType.StartParameters(attributesType: "SWAutomaticTripRecorderActivityAttributes", attributesData: 20 bytes, inputs: [])) for environment: development default 11:01:59.064198+0100 liveactivitiesd Received push event for com.****.****test::pushToStart default 11:01:59.064232+0100 liveactivitiesd Adding push-to-start budget for com.****.****test::pushToStart default 11:01:59.064273+0100 liveactivitiesd Acquiring keep-alive with reason: Database default 11:01:59.064296+0100 liveactivitiesd Keep-alive reasons: ["Database": 1, "Received message": 1] default 11:01:59.064313+0100 liveactivitiesd Acquiring keep-alive with reason: Database default 11:01:59.064330+0100 liveactivitiesd Keep-alive reasons: ["Database": 2, "Received message": 1] default 11:01:59.064342+0100 liveactivitiesd Reduced budget for com.****.****test::pushToStart to: 9 default 11:01:59.064358+0100 liveactivitiesd Topic com.****.****test.push-type.liveactivity has remaining budget for pushToStart of 9 default 11:01:59.064369+0100 liveactivitiesd Topic com.****.****test.push-type.liveactivity has not used any budget for activity default 11:01:59.064436+0100 liveactivitiesd Scheduling wake to re-evaluate push subscription budgets at 2025-03-19 11:01:59 +0000 default 11:01:59.064547+0100 liveactivitiesd Earliest nonwaking date from task "Push server budget timeout expiration": 2025-03-19T12:01:59+01:00, finalWakeTarget: 2025-03-19T12:01:59+01:00 3599.999696 default 11:01:59.064593+0100 liveactivitiesd Earliest waking date from task "Push server budget timeout expiration": 2025-03-19T12:01:59+01:00, finalWakeTarget: 2025-03-19T12:01:59+01:00 3599.999651 default 11:01:59.064620+0100 liveactivitiesd Scheduling nonwaking task for: 2025-03-19T12:01:59+01:00 in 3599.999622s default 11:01:59.064659+0100 liveactivitiesd Scheduling waking task for: 2025-03-19T12:01:59+01:00 in 3599.999584s default 11:01:59.064671+0100 liveactivitiesd Acquiring keep-alive with reason: wake scheduling default 11:01:59.064692+0100 liveactivitiesd Keep-alive reasons: ["Database": 2, "Received message": 1, "wake scheduling": 1] default 11:01:59.064734+0100 liveactivitiesd Scheduling waking task for adjusted date: 2025-03-19T12:01:59+01:00 in 3599.999508s default 11:01:59.064768+0100 liveactivitiesd xpc_activity_register: com.apple.sessionkit.wake, criteria: dictionary default 11:01:59.064843+0100 liveactivitiesd Received pushToStart notification for com.****.****test::pushToStart default 11:01:59.064955+0100 liveactivitiesd Keep-alive reasons: ["Database": 2, "Received message": 1] default 11:01:59.064979+0100 liveactivitiesd Publishing event: timestamp: 2025-03-19 08:58:21 +0000; activityIdentifier: F432AB2F-1799-4437-B54B-6D9D70A0B260; eventType: start(SessionPushNotifications.PushEvent.EventType.ActivityStartParameters(attributesType: "SWAutomaticTripRecorderActivityAttributes", attributesData: 20 bytes, contentSourceRequests: [ActivityKit.ActivityContentSource.Request.push(request: ActivityKit.PushActivityContentSource.Request.push, target: ProcessDescriptor.Request("com.****.****test")), ActivityKit.ActivityContentSource.Request.process(target: ProcessDescriptor.Request("com.****.****test"))]))
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Mar ’25
Debugging/Fixing deleted relationship objects with SwiftData
Using SwiftData and this is the simplest example I could boil down: @Model final class Item { var timestamp: Date var tag: Tag? init(timestamp: Date) { self.timestamp = timestamp } } @Model final class Tag { var timestamp: Date init(timestamp: Date) { self.timestamp = timestamp } } Notice Tag has no reference to Item. So if I create a bunch of items and set their Tag. Later on I add the ability to delete a Tag. Since I haven't added inverse relationship Item now references a tag that no longer exists so so I get these types of errors: SwiftData/BackingData.swift:875: Fatal error: This model instance was invalidated because its backing data could no longer be found the store. PersistentIdentifier(id: SwiftData.PersistentIdentifier.ID(url: x-coredata://EEC1D410-F87E-4F1F-B82D-8F2153A0B23C/Tag/p1), implementation: SwiftData.PersistentIdentifierImplementation) I think I understand now that I just need to add the item reference to Tag and SwiftData will nullify all Item references to that tag when a Tag is deleted. But, the damage is already done. How can I iterate through all Items that referenced a deleted tag and set them to nil or to a placeholder Tag? Or how can I catch that error and fix it when it comes up? The crash doesn't occur when loading an Item, only when accessing item.tag?.timestamp, in fact, item.tag?.id is still ok and doesn't crash since it doesn't have to load the backing data. I've tried things like just looping through all items and setting tag to nil, but saving the model context fails because somewhere in there it still tries to validate the old value. Thanks!
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Mar ’25
How to make a progress meter for an AppleScript that works with the Photos app
I wrote an AppleScript that takes a bunch of scanned jpegs with systematically named filenames and transfers information from the filename into the date and time fields. That all works fine, but I've got many more scans to do and I'd like to augment the script to include a progress meter because it takes a long time to run on e.g. 1000 photos. I've found basic progress meter examples online that involves commands like: set progress total steps to theImageCount set progress completed steps to 0 set progress description to "Processing Images..." set progress additional description to "Preparing to process." and they run OK in a separate dummy test case, however I'm getting syntax errors for such commands in my renaming script because (I think) they're inside a tell application "Photos" wrapper and it looks like Photos doesn't like those commands. A progress meter (in any AppleScript) should be a straightforward thing i.e. I can clearly define a total number of steps and I can clearly define the step number I'm currently on. I just want to display something like: I'd even be OK with just implementing something like: display dialog "blah blah" but that needs to be manually dismissed with each iteration of the loop, so that's no good. I also tried: display notification "blah blah" but that yields hundreds of notification boxes at the top right of my screen, so that's also impractical. I was even thinking maybe I could call some generic system progress meter with all the right variables via a "do shell script" command (although I have no idea how to do that). Something surely must be possible, but I just can't figure it out :-(. Could some kind soul please help me out. Thanks.
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Mar ’25
Old developer account still receiving payments after migration
Hi, I've migrated my app to another developer account more than half a year ago, but I'm still receiving a few transaction payments in the old developer account, which currently has no app. The payment date shown in the report is last month. I'm wondering how could this happen. Is it possible for users to initiate a transaction half a year ago and only successfully pay it now?
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Mar ’25
Issue with storing NSCoding object in userdefaults
Hi all. I need to save an array of strings in userdefaults. I am using NSKeyedArchiver.archivedData(withRootObject: rootObject, requiringSecureCoding: false) to convert array of string to data and then save it in userdefaults. Inorder to retrieve the data back, I am using let data = self.userDefaults.data(forKey: "key")! let unarchiver = try NSKeyedUnarchiver(forReadingFrom: data) unarchiver.requiresSecureCoding = false let array = unarchiver.decodeObject(forKey: NSKeyedArchiveRootObjectKey) as? NSObject This was working perfectly till iOS 18. From iOS 18 in couple of devices, we are getting empty string array while we retrieve the value back from userdefaults. We observed this in an iPhone 12 pro and iPhone 15 running on iOS 18. iPhone 12 pro is facing this issue almost once everyday. In iPhone 15 this happens once in 2-3 days. Tried printing raw data directly from userdefaults. And I can see some data available. But when we convert that back to array of string, I am getting empty. Tried adding logs in catch block. But couldn't get any. What might be the cause of this issue?
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Mar ’25
SSH app
Hello. I would like to develop an application that sends SSH commands via my phone to the server. I know that applications of this type exist, but they are not suitable for my use as a blind person who uses a screen reader. I hope you can help me find libraries that will assist me in development, or ready-made, open-source projects that I can develop and modify if necessary. Thank you in advance.
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Mar ’25
The host app appears in Accessibility Permission
I'm learning XPC by inspecting the GitHub Copilot project. I figured out that the schema works as follows: The host app with a UI to manage settings A Service Extension that controls the Xcode Editor A communication bridge cli app that connects the first two As far as I understand an app appears in the Accessibility Permission when it calls the next method: let key = kAXTrustedCheckOptionPrompt.takeRetainedValue() as NSString AXIsProcessTrustedWithOptions([key: true] as CFDictionary) This method is only called by the Service Extension. However, when I run a release build from the /Application folder (where launch agents point to), there are two records appearing in the Accessibility Permission list: The host app The needed Service Extension I compared all metadata files from Copilot with my copy line-by-line, but still can't figure out why the host app record appears in the Accessibility Permission, since the host app does not call the AXIsProcessTrustedWithOptions() method at all. Could you give me any clue to help me wrap my head around it?
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Mar ’25
Is changing macOS Network Locations programmatically allowed in Mac App Store apps?
I would like to develop a macOS app that would automatically switch Network Locations based on certain criteria. I want to publish this on the Mac App Store, but I'm unsure if this functionality is permitted. I've searched through the App Store Review Guidelines and documentation on NetworkExtension and SystemConfiguration frameworks, but I haven't found clear information on whether: Programmatically changing Network Locations is allowed in sandboxed App Store apps What specific entitlements would be required If there are any API-approved ways to do this without shell commands I'd like to avoid investing significant development time if this type of functionality would ultimately be rejected. As a relatively new Apple platform developer, any guidance on: The appropriate frameworks/APIs to use Required entitlements Whether this functionality is even permitted for App Store distribution would be incredibly helpful. Thank you in advance for any insights!
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Mar ’25
Is there a way to dynamically configure Actionable Notifications?
Hello, We are trying to implement Actionable Notifications on iOS via Remote Notifications. According to Apple’s official documentation (Declaring Your Actionable Notification Types), it is recommended to register notification categories at launch time. However, in our use case, the number of buttons and their actions in the Actionable Notification are determined at the time of the Remote Notification request. This means that we cannot predefine the categories at app launch but need to dynamically configure them based on the payload of the Remote Notification. Our Approach We are considering setting aps.mutable-content = 1 and using Notification Service Extension to modify the categoryIdentifier dynamically. Below is the JSON payload we plan to use for Remote Notifications: { "aps": { "alert": { "title": "New Message Received!", "body": "Check out the details." }, "category": "DYNAMIC_CATEGORY", "mutable-content": 1 }, "categoryData": { "id": "DYNAMIC_CATEGORY", "actions": [ { "id": "REPLY_ACTION", "title": "Reply", "options": ["foreground"] }, { "id": "DELETE_ACTION", "title": "Delete", "options": ["destructive"] } ] } } Questions: Can we dynamically configure Actionable Notifications based on the Remote Notification payload? If we set categoryIdentifier in Notification Service Extension’s didReceive(_:withContentHandler:), will users still see the correct action buttons even if the app is terminated? What is the recommended approach to dynamically configure Actionable Notifications at the time of receiving the Remote Notification, rather than at app launch?
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114
Mar ’25
Pencilkit custom pen
I want to create a brush similar to a fountain pen, with a three-dimensional feel to the strokes and a distinct tip. Alternatively, is it possible to achieve this by modifying the configuration parameters of a fountain pen brush?
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Mar ’25
Inquiry on Implementing Energy Monitoring for iOS Apps and Calculating Energy Impact
Dear Apple Support Team, I am reaching out to inquire about the implementation of an energy monitoring solution similar to Xcode's Energy Impact tool for iOS apps. Specifically, I would like to understand the following aspects to address issues like overheating and rapid battery drain: How can we achieve monitoring and calculation of CPU, GPU, and network usage over a period of time within an app? How is the current energy consumption level of an app determined? Additionally, how are the weights for various factors like CPU, GPU, network, and location usage allocated when calculating the overall energy impact? Any guidance or resources you could provide regarding these questions would be greatly appreciated. Thank you for your assistance.
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Mar ’25
iOS 18.3.1 - QLPreviewControllerView closing triggers AX Lookup problem - errorCode:1100 error:Permission denied portName:'com.apple.iphone.axserver' PID:1022
Since iOS 18.3.1, In lower iOS versions it works fine though. QLPreviewController shows a blank white screen instead of showing the document. Additionally, it does not display the 'Done' option at the top-right to close the view. Presenting the QLPreviewController works fine to display the document, but for the second time, it renders the blank white screen as described. While launching QLPreviewControllerView for the first time. I'm receiving the following message in the console and it displays the document. LaunchServices: store (null) or url (null) was nil: Error Domain=NSOSStatusErrorDomain Code=-54 "process may not map database" UserInfo={NSDebugDescription=process may not map database, _LSLine=72, _LSFunction=_LSServer_GetServerStoreForConnectionWithCompletionHandler} Attempt to map database failed: permission was denied. This attempt will not be retried. Closing the QLPreviewController with the help of the 'Done' option from top-right or swipe to close triggers the following message in the console. Connection to appex interrupted AX Lookup problem - errorCode:1100 error:Permission denied portName:'com.apple.iphone.axserver' PID:1022 ( 0 AXRuntime 0x00000001d2cd7758 _AXGetPortFromCache + 796 1 AXRuntime 0x00000001d2cdd02c AXUIElementPerformFencedActionWithValue + 700 2 UIKit 0x0000000258cdf488 7F0274D9-D3C9-3193-B606-1C74BE53B86C + 1537160 3 libdispatch.dylib 0x0000000101bb888c _dispatch_call_block_and_release + 32 4 libdispatch.dylib 0x0000000101bba578 _dispatch_client_callout + 20 5 libdispatch.dylib 0x0000000101bc2454 _dispatch_lane_serial_drain + 840 6 libdispatch.dylib 0x0000000101bc325c _dispatch_lane_invoke + 408 7 libdispatch.dylib 0x0000000101bd06fc _dispatch_root_queue_drain_deferred_wlh + 328 8 libdispatch.dylib 0x0000000101bcfd0c _dispatch_workloop_worker_thread + 580 9 libsystem_pthread.dylib 0x0000000225ea4680 _pthread_wqthread + 288 10 libsystem_pthread.dylib 0x0000000225ea2474 start_wqthread + 8 ) Trying to open he document again, Ultimately results in the white blank screen to be displayed with no options to close. It displays the Navigation bar only for the fraction of time. Leading users to force close the app and start again.
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273
Mar ’25
In-tunnel networking when `includeAllNetworks` is set.
When setting up a packet tunnel with a profile that has includeAllNetworks set to true, we seemingly cannot send any traffic inside the tunnel using any kind of an API. We've tried using BSD sockets, as we ping a host only reachable within the tunnel to establish whether we have connectivity - this does not work. When using NWConnection from the Network framework and specifying the required interface via virtualInterface from the packet tunnel, the connection state never reaches ready. Our interim solution is to, as ridiculous as it sounds, include a whole userspace networking stack so we can produce valid TCP packets just to send into our own tunnel. We require a TCP connection within our own tunnel to do some configuration during tunnel setup. Is there no better solution?
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Mar ’25