How to force a refresh of a SwiftUI View? Problem Description: I have a button with a .disabled() condition that’s a computed property of my ObservableObject model class. This means I can’t make it @Published. Something like this: class MyModel : ObservableObject { var isDisabled: Bool { if … { return true } else { … Read more
Only have one button active in dynamic list | SwiftUI Problem Description: I have a list generated from a ForEach loop: struct TrainingList: View { @EnvironmentObject var trainingVM: TrainingViewModel var body: some View { VStack(alignment: .leading) { Text("Your training sessions") .font(.system(size: 35, weight: .semibold, design: .default)) .padding(.all, 10) .foregroundColor(.white) Divider() ScrollView{ if(trainingVM.loading){ ProgressView("Loading training session").progressViewStyle(CircularProgressViewStyle(tint: … Read more
How does this function call this closure when each returns just a single Int? Problem Description: I find this code very confusing: let myClosure = { (number1: Int, number2: Int) -> Int in return number1 * number2 } func useClosure(closure: (Int, Int) -> Int) { let result = closure(2, 3) print(result) // prints 6 } … Read more
Creating an Observable around an async/await method using RxSwift Problem Description: I am using the AWS Amplify library https://github.com/aws-amplify/amplify-swift to communicate with the Cognito service. Most of the functions have been rewritten using the new async/await approach. Looking at the following method: func fetchAuthSession() async throws -> AuthSession { return try await Amplify.Auth.fetchAuthSession() } How … Read more
How do I conform to a protocol with an actor? Problem Description: When I try to define an actor that conforms to a protocol, Xcode gives me the error Actor-isolated instance method ‘foo()’ cannot be used to satisfy nonisolated protocol requirement. I can make the func nonisolated I don’t think I want to. Do I … Read more
How do I conform to a protocol with an actor? Problem Description: When I try to define an actor that conforms to a protocol, Xcode gives me the error Actor-isolated instance method ‘foo()’ cannot be used to satisfy nonisolated protocol requirement. I can make the func nonisolated I don’t think I want to. Do I … Read more
I expect the result to be a dictionary but it is accessed like a property… why? Problem Description: I have this JSON coming from a server… { "cars": [ { "name": "Ferrari", "price": "100" }, { "name": "Lamborghini", "price": "200" }, { "name": "Ford Pinto", "price": "1" } ] } This JSON is a dictionary … Read more
Error with lottie xcode 12 Thread 1: EXC_BAD_ACCESS (code=1, address=0x0 Problem Description: I’m starting with xcode and swift now. I have tu use xcode 12 and I’m trying to add a lottie animation but I always have the same error. I’ve create a short function with I call on viewDidLoad This is my Outet: @IBOutlet … Read more
Do we need to add new version to core data if we add new tables into it? Problem Description: I have an existing core data project now I want to add some more tables into it so my question is do we need to add change current version of CoreData and add new version to … Read more
Do we need to add new version to core data if we add new tables into it? Problem Description: I have an existing core data project now I want to add some more tables into it so my question is do we need to add change current version of CoreData and add new version to … Read more