ios – SwiftUI – Setting @State worth causes app to freeze

April 14, 2024

1

I’ve a problem the place the next code causes my app to hold. All of that is wrapped in a navigation stack on the high stage of my app.

struct ParentView: View {
    var physique: some View {
        Checklist {
           Part {
                ForEach(0...5, id: .self) { i in
                    NavigationLink {
                        ChildView()
                    } label: {
                        Textual content("Faucet right here")
                    }  
                }
            }
        }
    }
}

struct ChildView: View {
    @State var viewModel: ChildViewModel
    
    // MARK: - Lifecycle
    init() {
        _viewModel = State(initialValue: ChildViewModel())
    }
    
    var physique: some View {
        Textual content("Whats up, World!")
    }
}

@Observable class ChildViewModel {
    // Empty
}

I’ve remoted it right down to the initialiser of the ChildView class, however cannot work out precisely what’s inflicting it to lock up. If I alter the ChildView class to appear to be this it really works simply positive:

struct ChildView: View {
    // MARK: - Lifecycle
    init() { }
    
    var physique: some View {
        Textual content("Whats up, World!")
    }
}

I’ve tried utilizing State(wrappedValue: viewModel) as nicely, with no luck. I’ve additionally tried profiling the app however it does not appear to really have the ability to decide up the reason for the dangle both.

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