sample-view-model-init.swift

import SwiftUI

@main
struct WindowPresentationFunApp: App {
    @State var appState = AppState()
    
    var body: some Scene {
        WindowGroup {
            RootView(appState: appState)
                .onAppear {
                    DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(1)) {
                        appState.show = true
                    }
                }
        }
    }
}

struct RootView: View {
    var appState: AppState
    
    var body: some View {
        ZStack {
            SpecialView()
            
            if appState.show {
                Text("Some cool text")
            }
        }
    }
}

struct SpecialView: View {
    @State var viewModel = ViewModel()
    
    var body: some View {
        Text("Special stuff")
    }
}

@Observable class AppState {
    var show: Bool = false
}

@Observable class ViewModel {
    init() {
        print("✅ View model was inited")
    }
    
    deinit {
        print("❌ View model was deinited")
    }
}