Difficulties installing Xcode make us developer irritated, but one thing important is being patient and wait. I have experienced several times it took 3 hours to install recent Xcode and some report more than 6 hours. You may need to keep untouched for such a period. If you have ever tried waiting for more than 6 hours, you may try to install it by downloading .xip file. Visit the More Downloads page and download the latest Xcode.xip .This would also take as much time as App Store, but the installing process is a little more visible.

Are you trying to open an App project of Swift Playgrounds 4 on iPad? Then you need to use Xcode (13.2 or later), not Swift Playgrounds 4 on Mac as for now.

Every distribution method which Apple does not guarantee would cause any sort of troubles and you should not rely on them. If you are a member of paid Developer Program, you can add your friends as external testers on TestFlight.

.background(Color) changes all the background's color Can you clarify what is all the background's color and what is the text background color?

Can you show us a complete code to reproduce the issue?

You need to define an area to output something, maybe a Text somewhere in the View.

The most important part of the error message is this: CodingKeys(stringValue: "date", intValue: nil)], debugDescription: "Expected to decode Double but found a string/data instead." In your JSON text, the value for "date" is string, but in your struct, you are trying to pass the value to Date not String. What you may need is not a Numberformatter, but setting dateDecodingStrategy: final class ModelDataDepot: ObservableObject { @Published var depots = [Depot]() private let dateFormatter: DateFormatter = { let df = DateFormatter() df.dateFormat = "yyyy-MM-dd" df.locale = Locale(identifier: "en_US_POSIX") return df }() init() { let url = URL(string: "https://api.webcoders.ch/index.php")! URLSession.shared.dataTask(with: url) { (data, response, error) in if let error = error { print(error) return } guard let data = data else { print("No Data!") return } do { let decoder = JSONDecoder() decoder.dateDecodingStrategy = .formatted(self.dateFormatter) let decodedData = try decoder.decode([Depot].self, from: data) DispatchQueue.main.async { self.depots = decodedData } } catch { print("JSON-Error: \(error)") } }.resume() } }

I've created a text and I would like that the text will change on the press of the button. For example: there's a Text() witch now has written on it "text" and when I press the blue button (you can see it in my code), I want "text" to change to number "5" Thanks for showing your code. You just need to declare an @State variable to hold the content of the Text. (Defining a struct NumberView makes your code too complex, better remove it.) import SwiftUI //<- import PlaygroundSupport let columns: [GridItem] = [GridItem(.flexible()), GridItem(.flexible()), GridItem(.flexible())] struct ContentView: View { @State var outputText: String = "text" //<- var body: some View { GeometryReader { geometry in VStack { Spacer(minLength: 290) Text(outputText) //<- .font(.largeTitle) ZStack { LazyVGrid(columns: columns) { Group { Button { outputText = "\(5)" //<- } label: { ZStack { Circle() .frame(width: 90, height: 90) .foregroundColor(Color(.systemBlue)) .opacity(0.5) //.position(x: geometry.size.width/2, y: -100) Text("5") .font(.largeTitle) .bold() .foregroundColor(.black) } .frame(width: 90, height: 90) } } } } } } } } PlaygroundPage.current.setLiveView(ContentView())

All the lines were drawn in the proper place in my View. Please show the whole definition of the View to confirm that.

Visit Feedback Assistant to send a bug report to Apple.

Depends on many things. How many files are there? How large is each file? How the data is organized as a text?

To utilize Combine well, you may need to know what are (or should be or can be) publisher. @State variables cannot be publishers without some additional code. To make publishers easily, you can work with ObservableObject with @Published variables: import SwiftUI import Combine class ValidateLogin { let user: String let pass: String init(user: String, pass: String) { self.user = user self.pass = pass } func validateMe() -> Bool { return user.count > 3 && pass.count > 3 } } class MyContent: ObservableObject { @Published var userText: String = "" @Published var passText: String = "" } struct ContentView: View { @StateObject var content = MyContent() @State var canSave: Bool = false @State var contentSubscriber: AnyCancellable? var body: some View { ZStack { VStack { TextField("Username", text: $content.userText) { } SecureField("Password", text: $content.passText) { } }.padding(.horizontal, 20.0) }.onAppear { self.contentSubscriber = self.content.$userText .combineLatest(content.$passText) .sink {userText, passText in let validateLogin = ValidateLogin(user: userText, pass: passText) self.canSave = validateLogin.validateMe() } } } }

Have you checked this thread? https://developer.apple.com/forums/thread/693841?answerId=693782022#693782022 Make sure you are an Account Holder, and visit the App Store Connect. (Not Apple Developer site.)

No explanation is given as to why the context pointer was removed. One possible reason may be that the block can capture the context pointer, so you have no need to get it from a parameter of callback function.

Is it possible to add iPhone simulator there? As far as I know, the answer is NO. Swift Playgrounds 4 does not have a tool to explicitly test how your app looks like in each size of devices, nor it does not have an ability to run the app on actual iPhones.