I have a public swift function with the below declaration : public func InternalMain (_ pNumOfArgs : Int32, _ pCmdlineArgs : UnsafeMutablePointer<UnsafeMutablePointer<Int8>?>) -> Int32 {..} I need this function as public because I need to invoke in from a different library. But the above declaration produces an error in my generated swift header i.e '-swift.h' file because 'UnsafeMutablePointer<UnsafeMutablePointer?>' type cannot be represented in the swift generated header. Can someone help how do I get past this. This is a class independent function and I tried using the '@nonobj' to prevent this from getting in the generated header but it still gives an error.

When we pass some special words, NSString.getBytes does not crash even when we pass an invalid range. It seems a bug. The below code is an example. func testNSStringGetBytes() { let originalString: String = "􁜁あ" let bufferSize = 256 var buffer = [UInt8](repeating: 0, count: bufferSize) var usedLength = 0 // An invalid range is passed let range = NSRange(location: 0, length: originalString.count + 1) var remainingRange = NSRange() (originalString as NSString) .getBytes( &buffer, maxLength: bufferSize, usedLength: &usedLength, encoding: String.Encoding.utf8.rawValue, options: [], range: range, remaining: &remainingRange ) print("Used Length: \(usedLength)") print("Buffer: \(buffer[0..<usedLength])") if remainingRange.length > 0 { print("Did not convert the whole string. Remaining range: \(remainingRange)") } else { print("Entire string was converted successfully.") } }

In app delegate I'm trying to load an array with strings from a plist. I print the plist it prints fine... func loadTypesArray() { guard let path = Bundle.main.path(forResource: "Types", ofType: "plist") else {return} let url = URL(fileURLWithPath: path) let data = try! Data(contentsOf: url) guard let plist = try! PropertyListSerialization.propertyList(from: data, options: .mutableContainers, format: nil) as? [String] else {return} print(plist) typesArray = plist // print(typesArray) } But when I try and access it from a different part of the app using let typesArray = AppDelegate().typesArray the array I get is an empty array! any help?

I'm building a macOS target for my App (which also has some Obj-C code). Building and running the app is fine but when I archive the app in XCode, the process / build fails with the following error Type 'BOOL' (aka ;Int32') cannot be used as a boolean;test for '!=0' instead It happens in a couple of places, one of the places being private func getRootDirectory(createIfNotExists: Bool = true) throws -> URL { return try FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: true) } where it complains that create: true is not acceptable and throws the above error. If I comment out this line, the archive works successfully. When i Cmd + click the definition of Filemanager.default.url , i get this @available(macOS 10.6, *) open func url(for directory: FileManager.SearchPathDirectory, in domain: FileManager.SearchPathDomainMask, appropriateFor url: URL?, create shouldCreate: BOOL) throws -> URL This looks fishy since it it says create shouldCreate: BOOL whereas the documentation says it should be just Bool func url( for directory: FileManager.SearchPathDirectory, in domain: FileManager.SearchPathDomainMask, appropriateFor url: URL?, create shouldCreate: Bool ) throws -> URL My minimum deployment target is macOS 13.0 I'm quite stumped at this error - which happens only while archiving. Does anybody know why?

Is there possible to record audio during application in kill/terminate state? I am working with application where I have to record microphone voice for some process so I can it during application in foreground and background state, I have no idea about application kill state.

Compiler: XCode12/13/14 Tested On: iPhoneXS+iOS15.4 / iPhone11+iOS16.5 I tried to compile following code with arch=arm64e and run, it crashed with EXC_BAD_ACCESS at 'LDRAA', seems occur when trying to access c++ v-table. And this bug will not occur in following conditions. c++ I/O api is easy to trigger the bug. compile with arch=arm64 and run on arm64e device compile with arch=arm64e and run on arm64e device with iOS<=14 #include <fstream> #include <stringstream> int main(int argc, char** argv) { std::ifstream MyReadFile("/System/Library/CoreServices/SystemVersion.plist"); // crash1 std::stringstream stream; stream << std::hex << 0; // crash2 } I also tried c++11/14/17/20, it makes no difference.

I'm creating an App that can accepted PDFs from a shared context. I am using iOS, Swift, and UIKit with IOS 17.1+ The logic is: get the context see who is sending in (this is always unknown) see if I can open in place (in case I want to save later) send the URL off to open the (PDF) document and load it into PDFKit's pdfView.document I have no trouble loading PDF docs with the file picker. And everything works as expected for shares from apps like Messages, email, etc... (in which case URLContexts.first.options.openInPlace == False) The problem is with opening (sharing) a PDF that is sent from the Files App. (openInPlace == True) If the PDF is in the App's Document Folder, I need the Security scoped resource, to access the URL from the File's App so that I can copy the PDF's data to the PDFViewer.document. I get Security scoped resource access granted each time I get the File App's context URL. But, when I call fileCoordinator.coordinate and try to access a file outside of the App's document folder using the newUrl, I get an error. FYI - The newUrl (byAccessor) and context url (readingItemAt) paths are always same for the Files App URL share context. I can, however, copy the file to a new location in my apps directory and then open it from there and load in the data. But I really do not want to do that. . . . . . Questions: Am I missing something in my pList or are there other parameters specific to sharing a file from the Files App? I'd appreciate if someone shed some light on this? . . . . . Here are the parts of my code related to this with some print statements... . . . . . SceneDelegate func scene(_ scene: UIScene, openURLContexts URLContexts: Set<UIOpenURLContext>) { // nothing to see here, move along guard let urlContext = URLContexts.first else { print("No URLContext found") return } // let's get the URL (it will be a PDF) let url = urlContext.url let openInPlace = urlContext.options.openInPlace let bundleID = urlContext.options.sourceApplication print("Triggered with URL: \(url)") print("Can Open In Place?: \(openInPlace)") print("For Bundle ID: \(bundleID ?? "None")") // get my Root ViewController from window if let rootViewController = self.window?.rootViewController { // currently using just the view if let targetViewController = rootViewController as? ViewController { targetViewController.prepareToLoadSharedPDFDocument(at: url) } // I might use a UINavigationController in the future else if let navigationController = rootViewController as? UINavigationController, let targetViewController = navigationController.viewControllers.first as? ViewController { targetViewController.prepareToLoadSharedPDFDocument(at: url) } } } . . . . ViewController function I broke out the if statement for accessingScope just to make it easier for me the debug and play around with the code in accessingScope == True func loadPDF(fromUrl url: URL) { // If using the File Picker / don't use this // If going through a Share.... we pass the URL and have three outcomes (1, 2a, 2b) // 1. Security scoped resource access NOT needed if from a Share Like Messages or EMail // 2. Security scoped resource access granted/needed from 'Files' App // a. success if in the App's doc directory // b. fail if NOT in the App's doc directory // Set the securty scope variable var accessingScope = false // Log the URLs for debugging print("URL String: \(url.absoluteString)") print("URL Path: \(url.path())") // Check if the URL requires security scoped resource access if url.startAccessingSecurityScopedResource() { accessingScope = true print("Security scoped resource access granted.") } else { print("Security scoped resource access denied or not needed.") } // Stop accessing the scope once everything is compeleted defer { if accessingScope { url.stopAccessingSecurityScopedResource() print("Security scoped resource access stopped.") } } // Make sure the file is still there (it should be in this case) guard FileManager.default.fileExists(atPath: url.path) else { print("File does not exist at URL: \(url)") return } // Let's see if we can open it in place if accessingScope { let fileCoordinator = NSFileCoordinator() var error: NSError? fileCoordinator.coordinate(readingItemAt: url, options: [], error: &error) { (newUrl) in DispatchQueue.main.async { print(url.path()) print(newUrl.path()) if let document = PDFDocument(url: newUrl) { self.pdfView.document = document self.documentFileName = newUrl.deletingPathExtension().lastPathComponent self.fileLoadLocation = newUrl.path() self.updateGUI(pdfLoaded: true) self.setPDFScale(to: self.VM.pdfPageScale, asNewPDF: true) } else { print("Could not load PDF directly from url: \(newUrl)") } } } if let error = error { PRINT("File coordination error: \(error)") } } else { DispatchQueue.main.async { if let document = PDFDocument(url: url) { self.pdfView.document = document self.documentFileName = url.deletingPathExtension().lastPathComponent self.fileLoadLocation = url.path() self.updateGUI(pdfLoaded: true) self.setPDFScale(to: self.VM.pdfPageScale, asNewPDF: true) } else { PRINT("Could not load PDF from url: \(url)") } } } } . . . . Other relevant pList settings I've added are: Supports opening documents in place - YES Document types - PDFs (com.adobe.pdf) UIDocumentBrowserRecentDocumentContentTypes - com.adobe.pdf Application supports iTunes file sharing - YES And iCloud is one for Entitlements with iCloud Container Identifiers Ubiquity Container Identifiers . . . . Thank you in advance!. B

If I try to compile the following, I get a compilation error: import Foundation func isolatedPrint<A : Actor>(on actor: isolated A) { print("hello") } Task{ @MainActor in isolatedPrint(on: MainActor.shared) } The error: toto.swift:9:2: error: expression is 'async' but is not marked with 'await' isolatedPrint(on: MainActor.shared) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ await toto.swift:9:2: note: calls to global function 'isolatedPrint(on:)' from outside of its actor context are implicitly asynchronous isolatedPrint(on: MainActor.shared) ^ I don’t understand why the compiler does not detect the function is called on the MainActor via the actor parameter.

So our back end manages tokens in a strange way. Whenever we try to request a new access token using our refresh token, it invalidates our old refresh token and returns us with a new access + refresh token. The problem with this is that multiple concurrent network requests can see that a user's access token has expired and try to get a new access token, potentially causing us to get a 401 unauthorized error. Is there any way with structured/unstructured concurrency to ensure that our method for grabbing the access token can only at max be run once at a time? Im assuming the only realistic way would be to do something like this: @MyGlobalActor private var tokenTask: Task<String, any Error>? @MyGlobalActor func getAccessToken() async await -> String { if let tokenTask { return try await tokenTask.value } self.tokenTask = Task<String, any Error> { // refresh access token } let token = try await self.tokenTask!.value self.tokenTask = nil return token }

We have QuickLook thumbnailing framework which is used to provide thumbnails for custom file types. However, how can we provide thumbnails for system defined file types for eg. image file types? Is there any way to achieve this?

Before anyone rants and raves about checking documentation - I have spent the last 4 hours trying to solve this issue on my own before asking for help. Coding in Swift is VERY new for me and I'm banging my head against the wall trying to teach myself. I am very humbly asking for help. If you refer me to documentation, that's fine but I need examples or it's going to go right over my head. Teaching myself is hard, please don't make it more difficult. I have ONE swift file with everything in it. import Foundation import Cocoa import Observation class GlobalString: ObservableObject { @Published var apiKey = "" @Published var link = "" } struct ContentView: View { @EnvironmentObject var globalString: GlobalString var body: some View { Form { Section(header: Text("WallTaker for macOS").font(.title)) { TextField( "Link ID:", text: $globalString.link ) .disableAutocorrection(true) TextField( "API Key:", text: $globalString.apiKey ) .disableAutocorrection(true) Button("Take My Wallpaper!") { } } .padding() } .task { await Wallpaper().fetchLink() } } } @main struct WallTaker_for_macOSApp: App { @AppStorage("showMenuBarExtra") private var showMenuBarExtra = true @EnvironmentObject var globalString: GlobalString var body: some Scene { WindowGroup { ContentView() .environmentObject(GlobalString()) } // MenuBarExtra("WallTaker for macOS", systemImage: "WarrenHead.png", isInserted: $showMenuBarExtra) { // Button("Refresh") { //// currentNumber = "1" // } // Button("Love It!") { //// currentNumber = "2" // } // Button("Hate It!") { //// currentNumber = "3" // } // Button("EXPLOSION!") { // // currentNumber = "3" // } //// // } } } class Wallpaper { var url: URL? = nil var lastPostUrl: URL? = nil let mainMonitor: NSScreen init() { mainMonitor = NSScreen.main! } struct LinkResponse: Codable { var post_url: String? var set_by: String? var updated_at: String } struct Link { var postUrl: URL? var setBy: String var updatedAt: Date } func parseIsoDate(timestamp: String) -> Date? { let formatter = DateFormatter() formatter.locale = Locale(identifier: "en_US_POSIX") formatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ssZ" return formatter.date(from: timestamp) } func fetchLink() async { do { url = URL(string: GlobalString().link) let (data, _) = try await URLSession.shared.data(from: url!) let decoder = JSONDecoder() let linkResponse = try decoder.decode(LinkResponse.self, from: data) let postUrl: URL? = linkResponse.post_url != nil ? URL(string: linkResponse.post_url!) : nil let date = parseIsoDate(timestamp: linkResponse.updated_at) let link = Link( postUrl: postUrl, setBy: linkResponse.set_by ?? "anon", updatedAt: date ?? Date() ) try update(link: link) } catch { } } func update(link: Link) throws { guard let newPostUrl = link.postUrl else { return } if (newPostUrl != lastPostUrl) { lastPostUrl = newPostUrl let tempFilePath = try getTempFilePath() try downloadImageTo(sourceURL: newPostUrl, destinationURL: tempFilePath) try applyWallpaper(url: tempFilePath) } else { } } private func applyWallpaper(url: URL) throws { try NSWorkspace.shared.setDesktopImageURL(url, for: mainMonitor, options: [:]) } private func getTempFilePath() throws -> URL { let directory = NSTemporaryDirectory() let fileName = NSUUID().uuidString let fullURL = NSURL.fileURL(withPathComponents: [directory, fileName])! return fullURL } private func downloadImageTo(sourceURL: URL, destinationURL: URL) throws { let data = try Data(contentsOf: sourceURL) try data.write(to: destinationURL) } } The 'fetchLink' function is where things explode, specifically when setting the URL. I do not know what I'm doing wrong.

Hello! I'm trying to generate a protocol dependent for another one using Swift macros. The implementation looks like the following: @attached (peer, names: suffixed (Dependent),prefixed (svc)) public macro dependableService() = #externalMacro (module: "Macros", type: "DependableServiceMacro") public struct DependableServiceMacro: PeerMacro { public static func expansion (of node: AttributeSyntax, providingPeersOf declaration: some DeclSyntaxProtocol, in context: some MacroExpansionContext) throws -> [DeclSyntax] { guard let baseProto = declaration.as (ExtensionDeclSyntax.self) else { return [] } let nm = baseProto.extendedType.trimmedDescription let protoNm = nm + "Dependent" let varNm = "svc" + nm let protoDecl: DeclSyntax = """ protocol \(raw: protoNm) : ServiceDependent { var \(raw: varNm) : \(raw: nm) { get set } } """ return [protoDecl] } } When I try using it in my code like this @dependableService extension MyService {} the macro correctly expands to the following text: protocol MyServiceDependent : ServiceDependent { var svcMyService : MyService { get set } } However, the compiler gives me the error: error: declaration name 'MyServiceDependent' is not covered by macro 'dependableService' protocol MyServiceDependent : ServiceDependent { ^ Do I understand correctly, that for some reason the compiler cannot deduce the name of the generated protocol based on the name of the extensible protocol, despite the presence of the names: suffixed(Dependent) attribute in the macro declaration? Could anybody please tell me what I'm doing wrong here? Thanks in advance

Here is my models: import SwiftData @Model final public class FirstModel { let name: String @Relationship(deleteRule: .cascade, inverse: \SecondModel.parent) var children = [SecondModel]() init(name: String) { self.name = name } } @Model final public class SecondModel { let parent: FirstModel let name: String @Relationship(deleteRule: .cascade, inverse: \ThirdModel.parent) var children = [ThirdModel]() init(name: String, parent: FirstModel) { self.name = name self.parent = parent } } @Model final public class ThirdModel { let parent: SecondModel let name: String init(name: String, parent: SecondModel) { self.name = name self.parent = parent } } Then I create my model entries: let schema = Schema([ FirstModel.self, SecondModel.self, ThirdModel.self ]) let container = try ModelContainer(for: schema) let context = ModelContext(container) let firstModel = FirstModel(name: "my first model") let secondModel = SecondModel(name: "my second model", parent: firstModel) let thirdModel = ThirdModel(name: "my third model", parent: secondModel) context.insert(firstModel) context.insert(secondModel) context.insert(thirdModel) try context.save() I want to retrieve the children from my models: print("-- Fetch Third Model") let thirdFetchDescriptor: FetchDescriptor<ThirdModel> = FetchDescriptor<ThirdModel>(predicate: #Predicate { $0.name == "my third model" }) let thirdModels = try context.fetch(thirdFetchDescriptor) for entry in thirdModels { print(">>> \(entry) - \(entry.parent) - \(entry.parent.parent)") } print("-- Fetch First Model") let firstFetchDescriptor: FetchDescriptor<FirstModel> = FetchDescriptor<FirstModel>(predicate: #Predicate { $0.name == "my first model" }) let firstModels = try context.fetch(firstFetchDescriptor) for entry in firstModels { print(">>> \(entry) - \(entry.children)") for child in entry.children { print("\t>>> \(child) - \(child.children)") } } ... But it does not seem to work: -- Fetch Third Model >>> cardapart_sdk_app_ui.ThirdModel - cardapart_sdk_app_ui.SecondModel - cardapart_sdk_app_ui.FirstModel -- Fetch First Model >>> cardapart_sdk_app_ui.FirstModel - [] What I would expect to see: -- Fetch First Model >>> cardapart_sdk_app_ui.FirstModel - [cardapart_sdk_app_ui.SecondModel] >>> cardapart_sdk_app_ui.SecondModel - [cardapart_sdk_app_ui.ThirdModel] I am not sure what I am doing wrong or missing...

I'm trying to create an app that uses artificial intelligence technology. One of the models provided on this website(https://developer.apple.com/machine-learning/models/) will be used. Are there any copyright or legal issues if I create an app using the model provided by this website and distribute it to the App Store?

I have implemented the Game Center for authentication and saving player's game data. Both authentication and saving player's data works correctly all the time, but there is a problem with fetching and loading the data. The game works like this: At the startup, I start the authentication After the player successfully logs in, I start loading the player's data by calling fetchSavedGames method If a game data exists for the player, I receive a list of SavedGame object containing the player's data The problem is that after I uninstall the game and install it again, sometimes the SavedGame list is empty(step 3). But if I don't uninstall the game and reopen the game, this process works fine. Here's the complete code of Game Center implementation: class GameCenterHandler { public func signIn() { GKLocalPlayer.local.authenticateHandler = { viewController, error in if let viewController = viewController { viewController.present(viewController, animated: false) return } if error != nil { // Player could not be authenticated. // Disable Game Center in the game. return } // Auth successfull self.load(filename: "TestFileName") } } public func save(filename: String, data: String) { if GKLocalPlayer.local.isAuthenticated { GKLocalPlayer.local.saveGameData(Data(data.utf8), withName: filename) { savedGame, error in if savedGame != nil { // Data saved successfully } if error != nil { // Error in saving game data! } } } else { // Error in saving game data! User is not authenticated" } } public func load(filename: String) { if GKLocalPlayer.local.isAuthenticated { GKLocalPlayer.local.fetchSavedGames { games, error in if let game = games?.first(where: {$0.name == filename}){ game.loadData { data, error in if data != nil { // Data loaded successfully } if error != nil { // Error in loading game data! } } } else { // Error in loading game data! Filename not found } } } else { // Error in loading game data! User is not authenticated } } } I have also added Game Center and iCloud capabilities in xcode. Also in the iCloud section, I selected the iCloud Documents and added a container. I found a simillar question here but it doesn't make things clearer.

I don't even use Swift. I use Flutter. I am getting this odd always_embed_swift library warning that seems to be overriding my runner target on xcode. I'll just attach the image down below of what I'm dealing with. Please an apple engineer or someone just help me because this has been a struggle lol. I need to change this but can't find the setting to do so.

Hello Everyone, I'm working on an app that utilizes the new C++ - Swift interop feature. I have a module called ModuleA that contains multiple Swift classes, and I need to store instances of these classes in a C++ class as a class member(to ensure ARC until the class object is deallocated). However, I want to retain the Swift class objects on the stack without directly allocating heap memory from C++. Sample Swift Code: public class SwiftClassA { public init() {} public func FuncA() -&gt; Void { // Perform operations specific to SwiftClassA } } public class SwiftClassB { public init() {} public func FuncA() -&gt; Void { // Perform operations specific to SwiftClassB } } // Additional Swift classes (SwiftClassC to SwiftClassN) follow a similar structure. Sample Cpp Code: CppClass.hpp #include "ModuleA-Swift.h" // Include generated Swift headerclass CppClass { public: // Functions and declarationsprivate: XYZ vClassObject; // Placeholder for Any Swift class object }; CppClass.cpp #include "ModuleA-Swift.h" // Include generated Swift headervoid CppClass::SomeFuncA() noexcept { ModuleA::SwiftClassA obj = ModuleA::SwiftClassA::init(); // Initialize SwiftClassA object vClassObject = obj; // Assign SwiftClassA object to vClassObject } void CppClass::SomeFuncB() noexcept { ModuleA::SwiftClassB obj = ModuleA::SwiftClassB::init(); // Initialize SwiftClassB object vClassObject = obj; // How do I Assign SwiftClassB object to vClassObject? } I'm looking for suggestions on how to efficiently store different types of Swift class objects in my C++ class while maintaining stack-based object retention and proper memory management. Any help or insights would be greatly appreciated. Thanks, Harshal

I'm making a Swift Program. I got a .a file that builded from some c++ scripts,and I can see some fuctions in it by commed "nm *.a", and a .h file like this My question is how to call the fuctions in .a like "testDebug",I can call from c# like [DllImport("__Internal")] private static extern void testDebug(); Google's answer always with a right .h file，Maybe I should make .h file correct first. Any reply would be greatly appreciated.

I'm debugging some Regex Builder code in my Playground. I run the following piece code: let timeMatchWithout = possibleTime.firstMatch(of: timeWithoutSec) and I get this error message: Regex.Match optional storedCapture contains no some What could this possibly mean? contains no some??? Here is a more complete snippet, if this helps: let hourRef = Reference&lt;Substring&gt;() let minuteRef = Reference&lt;Substring&gt;() let hourReg = Regex { ChoiceOf { Capture(as: hourRef) { One(.digit) One(.digit) } Capture(as: hourRef) { One(.digit) } } } let minuteReg = Regex { ChoiceOf { Capture(as: minuteRef) { One(.digit) One(.digit) } Capture(as: minuteRef) { One(.digit) } } } let ampmRef = Reference&lt;Substring&gt;() let ampmReg = Regex { Capture(as: ampmRef) { ZeroOrMore { ChoiceOf { One("am") One("pm") One("a.m.") One("p.m.") } } } /* transform: { $0.lowercase } */ }.ignoresCase() let timeWithoutSec = Regex { hourReg One(":") minuteReg ZeroOrMore(.whitespace) ampmReg }.ignoresCase() let possibleTime = "10:20 AM" let timeMatchWithout = possibleTime.firstMatch(of: timeWithoutSec) The last line produces the error message. Thanks for the help. Note the removed transform: on the ampmReg definition. If that is included the compiler times out as noted in my previous post, yesterday.

I have a virtual machine using apple's sample code on their developer page but i have no audio. How do i create and setup an audio device for the vm?