import SwiftUI extension Main { struct RootView: BaseView { @EnvironmentObject var viewModel: ViewModel var body: some View { viewModel.view(for: viewModel.scene.screen) .sheet(isPresented: $viewModel.isModalPresented) { NavigationView { self.viewModel.modal!.view } .navigationViewStyle(StackNavigationViewStyle()) } .alert(isPresented: $viewModel.isAlertPresented) { Alert( title: Text("Important message"), message: Text(viewModel.alertMessage), dismissButton: .default(Text("Dismiss")) ) } } } }