👀 Views: 0 💬 Answers: 1 📅 Created: 2025-06-14

swiftui observableobject list iOS13 iPhoneSimulator swift

I'm stuck trying to I'm stuck on something that should probably be simple..... I've searched everywhere and can't find a clear answer... I'm working with an scenario where a SwiftUI `List` does not update properly on the iPhone 13 simulator when I modify the data within an `ObservableObject`. I've set up my view model with `@Published` properties, but when I change the data, the UI doesn't reflect these changes as expected. Here's a simplified version of what I have: ```swift import SwiftUI import Combine class MyViewModel: ObservableObject { @Published var items: [String] = [] func addItem(_ item: String) { items.append(item) } } struct ContentView: View { @ObservedObject var viewModel = MyViewModel() var body: some View { VStack { List(viewModel.items, id: \.​self) { item in Text(item) } Button(action: { viewModel.addItem("Item \(viewModel.items.count + 1)") }) { Text("Add Item") } } } } @main struct MyApp: App { var body: some Scene { WindowGroup { ContentView() } } } ``` I expected the `List` to update and display the new items when I press the 'Add Item' button. However, after adding multiple items, the list seems to freeze and does not render any new rows beyond a certain point. I checked the console for any behavior messages but found nothing relevant. I've also tried using `@State` instead of `@ObservedObject`, but that doesn't seem to work either. Interestingly, I don’t see this behavior on older devices or simulators, making me think it might be specific to the iPhone 13 simulator. Has anyone encountered a similar scenario or does anyone know how to resolve this? Any insights would be greatly appreciated! What's the best practice here? I'm working on a application that needs to handle this. This is part of a larger desktop app I'm building. Thanks, I really appreciate it!