Hi all, I'm working on a really basic counter app as a way to explore SwiftData and have come across some behavior that I don't understand. I have a very simple App Intent that increments a user-specified counter in my app. The intent doesn't throw any errors and correctly updates the CoreData store but, when I switch back to my app from the Shortcuts app (where I'm testing the app intent), the view hasn't updated. Closing and re-opening the app shows the incremented counter value but I'd like to know if it's possible to have my app's UI update when the CoreData store is updated from outside the app without relaunching the whole app. For some brief context, here's my view and the App Intent: struct ContentView: View { @Environment(\.modelContext) private var modelContext @Query private var counters: [Counter] // ... var body: some View { NavigationStack { List { ForEach(counters) { counter in CounterRowItem(counter: counter) } .onDelete(perform: deleteItems) } // ... } } struct IncrementCounterIntent: AppIntent { static var title: LocalizedStringResource = "Increment Counter" @Parameter(title: "Name", optionsProvider: CounterOptionsProvider()) var name: String func perform() async throws -> some IntentResult & ReturnsValue<Int> { let provider = try CounterProvider() guard let counter = try provider.fetchCounters().first(where: { $0.name == name }) else { print("Couldn't find counter with name '\(name)'") return .result(value: 0) } counter.count += 1 try provider.context.save() return .result(value: counter.count) } private final class CounterOptionsProvider: DynamicOptionsProvider { func results() async throws -> [String] { try CounterProvider().fetchCounters().map { $0.name } } } }

Was watching this latest WWDC 2023 video and had a question. I see about 17:20 in, they mention you can now put the shortcut provider in an app intent extension. https://developer.apple.com/videos/play/wwdc2023/10103/ This works fine by itself and I can see all my shortcuts and use siri, but as soon as I try to call into the extension from the main app in order to trigger updateAppShortcutParameters() or any other code, I get a linker error. Am I doing something obvious wrong? Note, I called it a framework, but it Is just an extension. Cant figure out how I am supposed to be calling this method. Any help is greatly appreciated! https://developer.apple.com/documentation/appintents/appshortcutsprovider/updateappshortcutparameters()?changes=_4_8 https://imgur.com/a/yDygSVJ

Hi, I want to develop a referral system for my subscribers. If someone suggests my app and his/her friend buy a subscription I want to give the referrer a one-month free subscription or extend the existing subscription to one month for free. Is it possible to do this with offer codes?

Problem The following code doesn't work: let predicate = #Predicate<Car> { car in car.size == size //This doesn't work } Console Error Query encountered an error: SwiftData.SwiftDataError(_error: SwiftData.SwiftDataError._Error.unsupportedPredicate) Root cause Size is an enum, #Predicate works with other type such as String however doesn't work with enum Enum value is saved however is not filtered by #Predicate Environment Xcode: 15.0 (15A240d) - App Store macOS: 14.0 (23A339) - Release Candidate Steps to reproduce Run the app on iOS 17 or macOS Sonoma Press the Add button Notice that the list remains empty Expected behaviour List should show the newly created small car Actual behaviour List remains empty inspite of successfully creating the small car. Feedback FB13194334 Code Size enum Size: String, Codable { case small case medium case large } Car import SwiftData @Model class Car { let id: UUID let name: String let size: Size init( id: UUID, name: String, size: Size ) { self.id = id self.name = name self.size = size } } ContentView struct ContentView: View { var body: some View { NavigationStack { CarList(size: .small) } } CarList import SwiftUI import SwiftData struct CarList: View { let size: Size @Environment(\.modelContext) private var modelContext @Query private var cars: [Car] init(size: Size) { self.size = size let predicate = #Predicate<Car> { car in car.size == size //This doesn't work } _cars = Query(filter: predicate, sort: \.name) } var body: some View { List(cars) { car in VStack(alignment: .leading) { Text(car.name) Text("\(car.size.rawValue)") Text(car.id.uuidString) .font(.footnote) } } .toolbar { Button("Add") { createCar() } } } private func createCar() { let name = "aaa" let car = Car( id: UUID(), name: name, size: size ) modelContext.insert(car) } }

is anyone facing the error, "The current model reference and the next model reference cannot be equal", when using SwiftData with migration and iCloud/CloudKit integration?

I don't see upload option for the App Store connect, can only export .ipa. Also having issues with Transporter, pasting error message here. Could not create a temporary .itmsp package for the app "Redacted.ipa". Unable to determine app platform for 'Undefined' software type. Is anyone else facing the same issue? I am using Xcode 15.

I am having troubles placing a model inside a volumetric window. I have a model - just a simple cube created in Reality Composer Pro that is 0.2m on a side and centered at the origin - and I want to display it in a volumetric window that is 1.0m on a side while preserving the cube's origin 0.2m size. The small cube seems to be flush against the back and top of the larger volumetric window. Is it possible to initially position the model inside the volume? For example, can the model be placed flush against the bottom and front of the volumetric window? (note: the actual use case is wanting to place 3D terrain (which tends to be mostly flat like a pizza box) flush against the bottom of the volumetric window)

Hi, I have tried to add Eve energy plug but still pairing failed, it reported always same error. Error Domain=com.apple.MatterSupport Code=1 "(null)" Could anyone help? Regards

Hi there, This is my first time posting here. I'm working on small projects on Swift and SwiftUI now and then. I'm currently trying to develop an application that gets some bus arrival data using API and displaying them with live activities. The thing is that I'm not quite sure how frequently updates work yet. Still trying to figure out if I can update the live activity everytime the data coming right from the API changes or use push notification updates each minute passing by, but that is another thread that I'm going to focus with more details. Everytime i'm trying to deploy my app on my iphone or a simulator this error keeps popping up and I can't figure out why. Any ideas? Let me know if you need any snippet of my code. SendProcessControlEvent:toPid: encountered an error: Error Domain=com.apple.dt.deviceprocesscontrolservice Code=8 "Failed to show Widget 'com.gregorikouk.MapKitTut.BusWidgetKit' error: Error Domain=FBSOpenApplicationServiceErrorDomain Code=1 "The request to open "com.apple.springboard" failed." UserInfo={NSLocalizedFailureReason=The request was denied by service delegate (SBMainWorkspace)., BSErrorCodeDescription=RequestDenied, NSUnderlyingError=0xb1282dfe0 {Error Domain=SBAvocadoDebuggingControllerErrorDomain Code=1 "Failed to get descriptors for extensionBundleID (com.gregorikouk.MapKitTut.BusWidgetKit)" UserInfo={NSLocalizedDescription=Failed to get descriptors for extensionBundleID (com.gregorikouk.MapKitTut.BusWidgetKit)}}, FBSOpenApplicationRequestID=0xe5da, NSLocalizedDescription=The request to open "com.apple.springboard" failed.}." UserInfo={NSLocalizedDescription=Failed to show Widget 'com.gregorikouk.MapKitTut.BusWidgetKit' error: Error Domain=FBSOpenApplicationServiceErrorDomain Code=1 "The request to open "com.apple.springboard" failed." UserInfo={NSLocalizedFailureReason=The request was denied by service delegate (SBMainWorkspace)., BSErrorCodeDescription=RequestDenied, NSUnderlyingError=0xb1282dfe0 {Error Domain=SBAvocadoDebuggingControllerErrorDomain Code=1 "Failed to get descriptors for extensionBundleID (com.gregorikouk.MapKitTut.BusWidgetKit)" UserInfo={NSLocalizedDescription=Failed to get descriptors for extensionBundleID (com.gregorikouk.MapKitTut.BusWidgetKit)}}, FBSOpenApplicationRequestID=0xe5da, NSLocalizedDescription=The request to open "com.apple.springboard" failed.}., NSUnderlyingError=0xb1281d830 {Error Domain=FBSOpenApplicationServiceErrorDomain Code=1 "The request to open "com.apple.springboard" failed." UserInfo={NSLocalizedFailureReason=The request was denied by service delegate (SBMainWorkspace)., BSErrorCodeDescription=RequestDenied, NSUnderlyingError=0xb1282dfe0 {Error Domain=SBAvocadoDebuggingControllerErrorDomain Code=1 "Failed to get descriptors for extensionBundleID (com.gregorikouk.MapKitTut.BusWidgetKit)" UserInfo={NSLocalizedDescription=Failed to get descriptors for extensionBundleID (com.gregorikouk.MapKitTut.BusWidgetKit)}}, FBSOpenApplicationRequestID=0xe5da, NSLocalizedDescription=The request to open "com.apple.springboard" failed.}}} Domain: DTXMessage Code: 1 User Info: { DVTErrorCreationDateKey = "2023-10-02 21:06:04 +0000"; } -- System Information macOS Version 14.0 (Build 23A344) Xcode 15.0 (22265) (Build 15A240d) Timestamp: 2023-10-03T00:06:04+03:00

I'm trying to debug a problem that's affecting customers who have upgraded to WatchOS 10, and I'm unable to get any console output from the watch when I debug the watch app in Xcode, or from the console app connecting from my Mac. The other weird thing is that my watch shows up twice in the device list in the console app. Is this a known issue?

I'm encountering an issue encoding/decoding a custom struct from SwiftData. As it's all happening behind the generated code of SwiftData and a decoder, I'm not really sure what's going on. I have a custom type defined kind of like this: public struct Group<Key: Hashable, Element: Hashable> { private var elementGroups: [Element: Key] private var groupedElements: [Key: [Element]] } In short, it allows multiple elements (usually a string), to be grouped, referenced by some key. I have Codable conformance to this object, so I can encode and decode it. For simplicity, the elementGroups is encoded/decoded, and the groupedElements is rebuilt when decoding. My implementation is similar to this: extension Group: Codable where Key: Codable, Element: Codable { private enum Keys: CodingKey { case groups } public init(from decoder: Decoder) throws { let container = try decoder.container(keyedBy: Keys.self) let decoded = try container.decode([Element: Key].self, forKey: .groups) // Enumerate over the element groups, and populate the list of elements. // var elements: [Key: [Element]] = [:] for group in decoded { elements[group.value] = (elements[group.value] ?? []) + [group.key] } elementGroups = decoded groupedElements = elements } public func encode(to encoder: Encoder) throws { var container = encoder.container(keyedBy: Keys.self) try container.encode(elementGroups, forKey: .groups) } } This works fine when encoding and decoding to JSON, but when I attempt to use this structure as a value within a SwiftData model, then decoding the type crashes my application. @Model final class MyModel { var id: UUID = UUID() var groups: Group<UUID, String> = Group<UUID, String>() init(id: UUID) { self.id = id } } When something attempts to decode the groups property on the MyModel object, it crashes with the following error: Could not cast value of type 'Swift.Optional<Any>' (0x1ed7d0290) to 'Swift.Dictionary<Swift.String, Foundation.UUID>' (0x121fa9448). I would guess that there is a nil value stored for groups in SwiftData, and attempting to decode it to a Group<UUID, String> type is failing. It's odd that it doesn't throw an exception though, and hard crashes. Also, I'm not sure why it's optional, as a value is being written out. Does anyone have any ideas?

Will UVC native support come for the Iphone as well? So, using external cameras with the ipad is greatly beneficial, but for the iphone, it can make it a production powerhouse! So, have there been discussions around bringing UVC support for the Iphone as well? and if so, what were your conclusions?

I am writing a SwiftUI-based app and have the following requirements: Use a file browser (such as UIDocumentPickerViewController) to find an arbitrary file (not one that the application knows how to open) which is external to the app bundle but local to the device the app is running on - either in local storage or on an iCloud drive. Save this location. At a later time, open this file. The file should open in an app that knows how to open it or in a browser. Do all of the above in a way that works with multiple devices (synced via CloudKit/SwiftData). For example, select a file on my iCloud drive on my Mac, then save it (using CloudKit/SwiftData) and open it on an iPad that has an app that can open it. I am addressing requirement #1 using UIDocumentPickerViewController wrapped with a UIViewControllerRepresentable. It returns a security-scoped URL. (Note: this worries me because of requirement #4). I use the Bookmark API to implement requirement #2. For requirement #3, I load the bookmark data, convert it back to a security-scoped URL and either Link("Open", destination: url) or @Environment(\.openURL) private var openURL if url.startAccessingSecurityScopedResource() { defer { url.stopAccessingSecurityScopedResource() } openURL(url) { accepted in // do something here } } Both of these implementations fail. The Link call responds with "invalid input parameters" (Error Domain=NSOSStatusErrorDomain, Code=-50), the openURL() call just returns false. So, my questions are: Since it appears the Link and openURL work for internet URLs, but not for security-scoped file URLs, how to I cause a document to be opened (using an application which knows how to open it or a browser). Since UIDocumentPickerViewController is returning a security-scoped URL, how can I make this work on a different device than the one on which the user selected the document? (Assuming, of course, that we are talking about a document that is on an iCloud drive that both devices have access to).

Hi all, has anybody found the trick how to get SwiftData working with SpotLight Search? Setting the attribute "spotlight" in the Model definition seems to do nothing at all, as pointed out by Paul Hudson in his new book as well (https://www.hackingwithswift.com/quick-start/swiftdata/how-to-index-swiftdata-objects-in-spotlight) Thanks a lot!

Hello everyone, I have been working on a macOS app that utilizes push notifications for the past year. Up until recently, everything was functioning correctly. However, now I'm experiencing issues where push notifications are either not being delivered at all or are experiencing significant delays, sometimes up to 10 minutes. Setting the priority header to 10 hasn't made any difference. I am currently using development push notifications, but the issue persists when switching to the production environment. I'm curious if anyone else has encountered similar problems. When checking the push console, it frequently reports that the device is offline, even though it's actually online ("discarded as device was offline"). Occasionally, notifications are delivered promptly, but this is becoming increasingly infrequent. This issue has been consistently reported by our testers, particularly after they updated to macOS Sonoma. Any insights or assistance you can provide would be greatly appreciated.

Swift Concurrency Resources: DevForums tags: Concurrency The Swift Programming Language > Concurrency documentation Migrating to Swift 6 documentation WWDC 2022 Session 110351 Eliminate data races using Swift Concurrency — This ‘sailing on the sea of concurrency’ talk is a great introduction to the fundamentals. WWDC 2021 Session 10134 Explore structured concurrency in Swift — The table that starts rolling out at around 25:45 is really helpful. Swift Async Algorithms package Swift Concurrency Proposal Index DevForum post Why is flow control important? DevForums post Matt Massicotte’s blog Dispatch Resources: DevForums tags: Dispatch Dispatch documentation — Note that the Swift API and C API, while generally aligned, are different in many details. Make sure you select the right language at the top of the page. Dispatch man pages — While the standard Dispatch documentation is good, you can still find some great tidbits in the man pages. See Reading UNIX Manual Pages. Start by reading dispatch in section 3. WWDC 2015 Session 718 Building Responsive and Efficient Apps with GCD [1] WWDC 2017 Session 706 Modernizing Grand Central Dispatch Usage [1] Avoid Dispatch Global Concurrent Queues DevForums post Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = "eskimo" + "1" + "@" + "apple.com" [1] These videos may or may not be available from Apple. If not, the URL should help you locate other sources of this info.

We are currently utilizing VZ with Lima (details: Lima VM and VZ) for our development environment. However, we're encountering a critical issue with the com.apple.Virtualization.VirtualMachine process leading to open file handle exhaustion. When mounting our programming languages dependency cache folder (Which can have a lot of files) into the VZ VM, we encounter an operating system error related to open file limits: /gomodcache/github.com/go-git/go-git/v5@v5.4.2/plumbing/object/patch.go:14:2: open /gomodcache/github.com/go-git/go-git/v5@v5.4.2/plumbing/format/diff/unified_encoder.go: too many open files in system Further investigation revealed an abnormally high number of open files associated with the com.apple.Virtualization.VirtualMachine process. A significant portion of these files are not actively used but remain open. Example Case: A file (/Users/rcurrah/test.txt) created on the Mac host and listed (ls) in the VM remains open even 20 minutes later, as evidenced by the following command output: ❯ lsof | grep 11208 | grep test.txt COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME com.apple 11208 rcurrah 4823r REG 1,13 0 46200882 /Users/rcurrah/test.txt Steps to Reproduce the Issue: To reproduce the file handle exhaustion follow the below steps. This process will create a large number of files on the Mac host, listing them on the VZ VM, and then verifying their open status using lsof. Setup the VZ Environment with Sharing: Create a VZ VM with your home directory shared to the VM. Create a Test Directory on the Mac Host: Create a new directory on your Mac host, e.g., mkdir ~/test-file-exhaustion. Generate a Large Number of Files: Navigate to the created directory: cd ~/test-file-exhaustion. Use a loop to create a large number of files, e.g., for i in {1..10000}; do touch "file_${i}.txt"; done. This will create 10,000 files named file_1.txt, file_2.txt, etc. List Files in the VM: Access the VZ VM shell. Navigate to the mounted directory and list the files using the ls command, e.g., ls /path/to/mounted/test-file-exhaustion. Check Open Files on Mac Host: Exit the VM and return to your Mac host terminal. Use the lsof command to check for open files related to the com.apple.Virtualization.VirtualMachine process: lsof | grep "$(pgrep com.apple.Virtualization.VirtualMachine)" | grep 'test-file-exhaustion' | wc -l. Document the Output: Record the output of the lsof command. Note the number of open files. Verify File Closure (or Lack Thereof): After a certain period, e.g., 20 minutes, repeat the lsof command to see if the files are still open, indicating that they haven’t been closed properly by the process. Given these observations, we have a couple of questions: Is this behavior of com.apple.Virtualization.VirtualMachine retaining open file handles a known issue or a bug? Should VZ be managing the closure of these file handles more efficiently, especially when they are no longer in use? This issue is impacting our development workflow significantly. Any guidance or insights on resolving this would be highly appreciated. Thank you for your attention to this matter. Best regards, Ryan

It seems that whenever I scan the contents of ~/Library/Containers with my app, I get the warning [App] would like to access data from other apps, regardless of how often I have already allowed it. When the warning appears, the last scanned file is ~/Library/Containers/com.apple.CloudPhotosConfiguration/Data. My sample code: let openPanel = NSOpenPanel() openPanel.canChooseDirectories = true openPanel.runModal() let url = openPanel.urls[0] let enumerator = FileManager.default.enumerator(at: url, includingPropertiesForKeys: nil) while let url = enumerator?.nextObject() as? URL { print(url.path) } Is it expected that one has to allow this warning every time the app is run?

I am trying to implement a third party passkey credential provider and I have been able to successfully setup the project for that. Below is a sample code which I am using - let passkeyRegistrationCredential = ASPasskeyRegistrationCredential(relyingParty: self.request?.credentialIdentity.serviceIdentifier.identifier ?? "", clientDataHash: self.request?.clientDataHash ?? Data(), credentialID: Data(credentialId), attestationObject: Data(attestationBytes) self.extensionContext.completeRegistrationRequest(using: passkeyRegistrationCredential) The attestationBytes object that I am generating and sending back to RP seems to work only if I set the "fmt" to "none", which basically requires "attStmt" to be sent as an empty value as per WebAuthn spec - https://www.w3.org/TR/webauthn-2/#sctn-none-attestation When trying to set the "fmt" to "packed" in attestation object and creating a self signed "attStmt" consisting of "alg" and "sig" key-values referring - https://www.w3.org/TR/webauthn-2/#sctn-packed-attestation, it does not seem to work. The RP throws an error. I do not have "x5c" object as that supposedly is not mandatory in case of self attestation. I have "authData" also as part of the response properly setup. Is it not possible to use packed attestation or am I missing something in creating the attestation object? Also, does Apple modify the response being sent in the background before sending to RP if packed fmt is used?

Hi, I'm looking for feedback regarding SCNetworkReachability under macOS Sonoma. It seems that since beta 3 the notifications behaviour changed. In a LaunchAgent I'm using SCNetworkReachabilityCreateWithName + SCNetworkReachabilitySetCallback + SCNetworkReachabilityScheduleWithRunLoop and wait for callbacks looking at the kSCNetworkReachabilityFlagsReachable flag. This is running fine under macOS 12.x, 13.x and 14.0 for more than a year. If I log all callback entries I observe unexpected notifications as if the looked host became unreachable for very small amount of time (ms). The host is flagged as unreachable then few ms later reachable again then unreachable again. Fast switching is fine, I can accept that the service is unreachable even for 1s but the probleme is the latest status do not reflect actual reachability of the service. This is in a corporate network with the complexity of using a proxy.pac. Does anybody noticed something similar ? I filled a Feedback FB13442134 in case it could be a regression of 14.2