How can I calculate polynomial coefficients for Tone Curve points: // • Red channel: (0, 0), (60, 39), (128, 128), (255, 255) // • Green channel: (0, 0), (63, 50), (128, 128), (255, 255) // • Blue channel: (0, 0), (60, 47), (119, 119), (255, 255) CIFilter: func colorCrossPolynomial(inputImage: CIImage) -> CIImage? { let colorCrossPolynomial = CIFilter.colorCrossPolynomial() let redfloatArr: [CGFloat] = [1, 1, 1, 1, 0, 0, 0, 0, 0, 0] let greenfloatArr: [CGFloat] = [0, 1, 1, 0, 0, 0, 0, 0, 0, 1] let bluefloatArr: [CGFloat] = [0, 0, 1, 0, 0, 0, 0, 1, 1, 0] colorCrossPolynomial.inputImage = inputImage colorCrossPolynomial.blueCoefficients = CIVector(values: bluefloatArr, count: bluefloatArr.count) colorCrossPolynomial.redCoefficients = CIVector(values: redfloatArr, count: redfloatArr.count) colorCrossPolynomial.greenCoefficients = CIVector(values: greenfloatArr, count: greenfloatArr.count) return colorCrossPolynomial.outputImage }

PLATFORM AND VERSION iOS Development environment: Xcode 26, macOS 26 Run-time configuration: iOS 18 and up DESCRIPTION OF PROBLEM I am on the beta version of os 26 for both Xcode and macOS. When I try to run my project, which has the Swift OpenAPI Generator from apple, it gives the error "unsupported configuration: the aggregate target 'OpenAPIGenerator' has package dependencies, but targets that build for different platforms depend on it" STEPS TO REPRODUCE Install macOS 26 and Xcode 26 and try running an iOS app built for iOS 18.0 and up wit the OpenAPIGenerator package on a physical iPhone running iOS 26

I have been trying to integrate a UIKit view into SwiftUI, specifically a WKWebView. However, I keep encountering a does not conform to protocol error. Here's my code: import SwiftUI import WebKit struct SimpleWebView: View { var body: some View { WebViewContainerRepresentable() .edgesIgnoringSafeArea(.all) } } struct WebViewContainerRepresentable: UIViewRepresentable { typealias UIViewType = WKWebView func makeUIView(context: Context) -> WKWebView { let webView = WKWebView() if let url = Bundle.main.url(forResource: "index", withExtension: "html") { webView.loadFileURL(url, allowingReadAccessTo: url.deletingLastPathComponent()) } return webView } func updateUIView(_ uiView: WKWebView, context: Context) { // Updates not required for this use case } } I tried this with other views as well, and it turns out this is not WKWebView-specific. The minimum deployment version is iOS 15. Any help would be much appreciated. Let me know if I need to add any more information.

We are migrating to swift 6 from swift 5 using Xcode 16.2. we are getting below errors in almost each of our source code files : Call to main actor-isolated initializer 'init(storyboard:bundle:)' in a synchronous non isolated context Main actor-isolated property 'delegate' can not be mutated from a nonisolated context Call to main actor-isolated instance method 'register(cell:)' in a synchronous nonisolated context Call to main actor-isolated instance method 'setup()' in a synchronous nonisolated context Few questions related to these compile errors. Some of our functions arguments have default value set but swift 6 does not allow to set any default values. This requires a lot of code changes throughout the project. This would be lot of source code re-write. Using annotations like @uncheck sendable , @Sendable on the class (Main actor) name, lot of functions within those classes , having inside some code which coming from other classes which also showing main thread issue even we using @uncheck sendable. There are so many compile errors, we are still seeing other than what we have listed here. Fixing these compile errors throughout our project, would be like a re-write of our whole application, which would take lot of time. In order for us to migrate efficiently, we have few questions where we need your help with. Below are the questions. Are there any ways we can bypass these errors using any keywords or any other way possible? Can Swift 5 and Swift 6 co-exist? so, we can slowly migrate over a period of time.

I'm encountering an issue where certain images are not displaying on some iOS devices, while the same code works perfectly on others. There’s no error or crash — just some images fail to load or display. I've confirmed the image URLs and formats are correct. Has anyone faced a similar issue or could suggest what might be causing this inconsistent behavior? Thanks in advance!

I noticed that when I enter the fully immersive view and then click the X button below the window, the immersive space remains active, and the only way to dismiss it is to click the digital crown. On other apps (Disney+ for example), closing out of the main window while in immersive mode also closes out the immersive space. I tried applying an onDisappear modifier to the the Modules view with a dismissImmersiveSpace, but that doesn't appear to do anything. Any help would be appreciated.

Hello, I am a software engineer student and I have recently been getting problems on my Mac regarding the C/C++ libraries. I have used my macbook for uni work for months, but around 3 or 4 months ago my macbook could not compile my work since it couldnt find the basic libraries I was using. For example, iostream. I have been using VSCode, and what it exactly says is "cannot open source file "iostream". Please run the 'Select IntelliSense Configuration...' command to locate your system headers." I have tried researching, changing the include path, even using chatgpt, and nothing. Is anyone having this same problem, or is able to help me? If any other information is needed, please let me know!

Hey team I'm facing an issue where startDate is 1 January 2025 and endDate is 31 March 2025 between this 2 dates is 90 days, but on my code is being taken as 89 days I've seen the math of the code excludes the first partial day (from midnight to 06:00) on 2025-01-01, which results in 89 full days instead of 90 days. startDate: 2025-01-01 06:00:00 +0000 endDate: 2025-03-31 06:00:00 +0000 this is my function func daysBetweenDates() -> Int? { guard let selectedStartDate = selectedStartDate?.date else { return nil } guard let selectedEndDate = selectedEndDate?.date else { return 0 } let calendar = Calendar.current let dateComponents = calendar.dateComponents([.day], from: selectedStartDate, to: selectedEndDate) return dateComponents.day } what I've tried is reset the hours to 0 so it can take the full day and return 90 days like this func daysBetweenDates() -> Int? { guard let selectedStartDate = selectedStartDate?.date else { return nil } guard let selectedEndDate = selectedEndDate?.date else { return 0 } var calendar = Calendar(identifier: .gregorian) calendar.timeZone = TimeZone(secondsFromGMT: 0) ?? .current let cleanMidNightStartDate = calendar.startOfDay(for: selectedStartDate) let cleanMidNightEndDate = calendar.startOfDay(for: selectedEndDate.addingTimeInterval(24 * 60 * 60)) let dateComponents = calendar.dateComponents([.day], from: cleanMidNightStartDate, to: cleanMidNightEndDate) let daysCount = dateComponents.day ?? 0 return daysCount } this worked for that date specifically but when I tried to change the date for example startDate: 18 December 2024. endDate: 18 March 2025. between those dates we have 90 days but this function now reads 91. what I'm looking is a cleaver solution for this problem so I can have the best posible quality code, thanks in advance!

For my app I've created a Dictionary that I want to persist using AppStorage In order to be able to do this, I added RawRepresentable conformance for my specific type of Dictionary. (see code below) typealias ScriptPickers = [Language: Bool] extension ScriptPickers: @retroactive RawRepresentable where Key == Language, Value == Bool { public init?(rawValue: String) { guard let data = rawValue.data(using: .utf8), let result = try? JSONDecoder().decode(ScriptPickers.self, from: data) else { return nil } self = result } public var rawValue: String { guard let data = try? JSONEncoder().encode(self), // data is Data type let result = String(data: data, encoding: .utf8) // coerce NSData to String else { return "{}" // empty Dictionary represented as String } return result } } public enum Language: String, Codable, { case en = "en" case fr = "fr" case ja = "ja" case ko = "ko" case hr = "hr" case de = "de" } This all works fine in my app, however trying to run any tests, the build fails with the following: Conflicting conformance of 'Dictionary<Key, Value>' to protocol 'RawRepresentable'; there cannot be more than one conformance, even with different conditional bounds But then when I comment out my RawRepresentable implementation, I get the following error when attempting to run tests: Value of type 'ScriptPickers' (aka 'Dictionary<Language, Bool>') has no member 'rawValue' I hope Joseph Heller is out there somewhere chuckling at my predicament any/all ideas greatly appreciated

I’ve been struggling with this issue for a long time. When I try to archive my app to submit it to the App Store, I encounter two errors: Linker command failed with exit code 1 (use -v to see invocation) Linker command failed with exit code 1 (use -v to see invocation)

I have a class that I want to custom encode into JSON: class Declination: Decodable, Encodable { var asString: String var asDouble: Double init(_ asString: String) { self.asString = asString self.asDouble = raToDouble(asString) } required init(from decoder: Decoder) throws { let value = try decoder.singleValueContainer() self.asString = try value.decode(String.self) self.asDouble = declinationToDouble(asString) } } As you can see, I calculate the double form of the declination when I decode a JSON file containing the data. What I want to do now is ENCODE the class back out as a single string. Currently the standard JSON encode in Swift produces the following: "declination":{"asDouble":18.26388888888889,"asString":"+18:15:50.00"} what I want to produce is: declination:"+18:15:50.00" How can I easily do that? I've read up about custom encoders and such, and I get confused about the containers and what keys are being used. I think there might be a simple answer where I could just code: extension Coordinate: Encodable { func encode(to encoder: Encoder) throws { return encoder.encode(self.asString) } } But experienced Swift developers will immediately see that won't work. Should I do JSONSerialization instead? Can I just write a toString() extension and have JSON pick that up? Any help would be appreciated. Thanks, Robert

I have an old app that I just got a notice will be pulled form the App Store if I don't upgrade. I tried to open in Xcode but it says I need to use Xcode 10.1 to convert to Swift 4. Exact message - "Use Xcode 10.1 to migrate the code to Swift 4." I downloaded Xcode 10.1 , now the OS (Sequoia ) says can't do it, have to use the latest version of Xcode. Exact message - "The version of Xcode installed on this Mac is not compatible with macOS Sequoia. Download the latest version for free from the App Store." Any experience with this and suggestions would be greatly appreciated.

In scope of one of our project we've faced an issue with constant crashes when integrating C++ library in Swift code using Swift/C++ interoperability. Investigating the root causes of the issue we've discovered that with new version of Swift bug was introduced. Long story short: for strings bigger than 27 symbols memory is feed incorrectly that causes the crashes. By creating this post I wanted to draw community's attention to the problem and promote it to be solved quicker as for now it is not addressed.

I am porting an old app from ObjC. The app uses many defined constants such as: #define COM_OFFSET 12.5 and many variables that are read and/or written throughout the App, such as: PCDate* Dates[367]; @class PCMainView; PCMainView* MainView; in one file called "PCCommon.h" How do I duplicate this function in Swift? I have looked around and have found no help. Thanks in advance.

I just added a .systemLarge widget to my app, but I can't get Links to work. I want the user to be able to tap one of the four rows in my widget - like the EmojiRangers example - but I can't get it to work. I watched a Developer video from WWDC20: https://developer.apple.com/videos/play/wwdc2020/10036?time=223 The guy, Izzy, 'simply' embeds an HStack in a Link, and hey presto! It all works. But that doesn't happen for me. There's clearly some code in the background that runs. I already have .widgetURL working for .systemSmall and .systemMedium widgets, and I don't need to use Links on those two types. Those work by sending a URL to .onOpenURL { incomingURL in ... All good there, no issues. I've wrapped each row in the large widget in a Link with the URL of something like myappurlscheme://widgetTapped/widgetId (it's the same url as that used in the small and medium widgets). I build & run. I tap a row. It doesn't act as though a row is tappable (it doesn't go slightly transparent), and just opens the app without hitting .onOpenURL or anything else. Nothing in my scene delegate is triggered. Is there a specific delegate method that gets called? Do I need to set up some awful intents? I'm not using any sort of NavigationStack here; that model doesn't fit my app. Any ideas? Thanks.

I can't find the arm_neon.h header file in macOS 15.6.1 This header file defines NEON intrinsics.

Hi, I'm relatively new to iOS development and kindly ask for some feedback on a strategy to achieve this desired behavior in my app. My Question: What would be the best strategy for sound effect playback when an app is in the background with precise timing? Is this even possible? Context: I created a basic countdown timer app (targeting iOS 17 with Swift/SwiftUI.). Countdown sessions can last up to 30-60 mins. When the timer is started it progresses through a series of sub-intervals and plays a short sound for each one. I used AVAudioPlayer and everything works fine when the app is in the foreground. I'm considering switching to AVAudioEngine b/c precise timing is very important and the AIs tell me this would have better precision. I'm already setting "App plays audio or streams audio/video using AirPlay" in my Plist, and have configured: AVAudioSession.sharedInstance().setCategory(.playback, mode: .default, options: .mixWithOthers) Curiously, when testing on my iPhone 13 mini, sounds sometimes still play when the app is in the background, but not always. What I've considered: Background Tasks: Would they make any sense for this use-case? Seems like not if the allowed time is short &amp; limited by the system. Pre-scheduling all Sounds: Not sure this would even work and seems like a lot of memory would be needed (could be hundreds of intervals). ActivityKit Alerts: works but with a ~50ms delay which is too long for my purposes. Pre-Render all SFX to 1 large audio file: Seems like a lot of work and processing time and probably not worth it. I hope there's a better solution. I'd really appreciate any feedback.

We have an iOS App built in .NET MAUI (Multi-platform App UI). This is a web view App. We wish to integrate APP Clips into this App. But we are unable to do it, due to less available resources online on such implementation. We do not wish to share code between .NET MAUI App and App clips We understand it is not possible to add APP Clips without a parent swift/Xcode app. As an alternative solution we were thinking to Create a new APP in APP Store Connect using XCode/swift and integrate app clips to it. This parent app when downloaded by users will only redirect users to our MAIN .NET MAUI app to app store connect. We need to know if such apps will be approved by APPSTORE Connect? Please guide us on this Also please do let us know if you have any other solution to integrate App clips to a .NET MAUI App

Hello, I am getting an error message "Cannot convert value of type 'URLSessionDataTask' to expected argument type 'Data'" for the last line of this code. Please can you tell me what the problem is? Thank you struct Item : Codable { var id: String var name: String var country: String var type: String var overallrecsit: String var dlastupd: String var doverallrecsit: String } let url = URL(string:"https://www.TEST_URL.com/api_ios.php") let json = try? JSONDecoder().decode(Item.self, from: URLSession.shared.dataTask(with: url!))

import Foundation import FirebaseAuth import GoogleSignIn import FBSDKLoginKit class AuthController { // Assuming these variables exist in your class var showCustomAlertLoading = false var signUpResultText = "" var isSignUpSucces = false var navigateHome = false // Google Sign-In func googleSign() { guard let presentingVC = (UIApplication.shared.connectedScenes.first as? UIWindowScene)?.windows.first?.rootViewController else { print("No root view controller found.") return } GIDSignIn.sharedInstance.signIn(withPresenting: presentingVC) { authentication, error in if let error = error { print("Error: \(error.localizedDescription)") return } guard let authentication = authentication else { print("Authentication is nil") return } guard let idToken = authentication.idToken else { print("ID Token is missing") return } guard let accessToken = authentication.accessToken else { print("Access Token is missing") return } let credential = GoogleAuthProvider.credential(withIDToken: idToken.tokenString, accessToken: accessToken.tokenString) self.showCustomAlertLoading = true Auth.auth().signIn(with: credential) { authResult, error in guard let user = authResult?.user, error == nil else { self.signUpResultText = error?.localizedDescription ?? "Error occurred" DispatchQueue.main.asyncAfter(deadline: .now() + 2) { self.showCustomAlertLoading = false } return } self.signUpResultText = "\(user.email ?? "No email")\nSigned in successfully" self.isSignUpSucces = true DispatchQueue.main.asyncAfter(deadline: .now() + 3) { self.showCustomAlertLoading = false DispatchQueue.main.asyncAfter(deadline: .now() + 1) { self.navigateHome = true } } print("\(user.email ?? "No email") signed in successfully") } } } // Facebook Sign-In func signInWithFacebook(presentingViewController: UIViewController, completion: @escaping (Bool, Error?) -> Void) { let manager = LoginManager() manager.logIn(permissions: ["public_profile", "email"], from: presentingViewController) { result, error in if let error = error { completion(false, error) return } guard let result = result, !result.isCancelled else { completion(false, NSError(domain: "Facebook Login Error", code: 400, userInfo: nil)) return } if let token = result.token { let credential = FacebookAuthProvider.credential(withAccessToken: token.tokenString) Auth.auth().signIn(with: credential) { (authResult, error) in if let error = error { completion(false, error) return } completion(true, nil) } } } } // Email Sign-In func signInWithEmail(email: String, password: String, completion: @escaping (Bool, Error?) -> Void) { Auth.auth().signIn(withEmail: email, password: password) { (authResult, error) in if let error = error { completion(false, error) return } completion(true, nil) } } }