SwiftUI 环境依赖注入 object

Question

I'm trying to create som kind of solution for injecting dependencies to SwiftUI view models and I have no idea whether I'm on to something or if I need to take this back to the drawing table.

struct MyAppName: App {

private static var serviceToInject = ServiceToInject()

@StateObject var viewModel1 = ViewModel1(service: serviceToInject)
@StateObject var viewModel2 = ViewModel2(service: serviceToInject)

var body: some Scene {
    WindowGroup {
        if authenticationViewModel.isLoggedIn {
            HomeView()
                .environmentObject(viewModel1)
                .environmentObject(viewModel2)
        } else {
            LoginView()
                .environmentObject(viewModel2)
        }
    }
}

Is this a possible to solution? I'm concerned about the use of static on the service. Is this maybee a better way to do it:

struct MyAppName: App {

@StateObject var viewModel1 = ViewModel1(service: ServiceToInject())
@StateObject var viewModel2 = ViewModel2(service: ServiceToInject())

var body: some Scene {
    WindowGroup {
        if authenticationViewModel.isLoggedIn {
            HomeView()
                .environmentObject(viewModel1)
                .environmentObject(viewModel2)
        } else {
            LoginView()
                .environmentObject(viewModel2)
        }
    }
}

Answer 1

If I understand right, you want to inject an object to multiple instances. You can make the ServiceToInject object an @EnvironmentObject, this way you can send it to multiple other classes: https://www.hackingwithswift.com/quick-start/swiftui/what-is-the-environmentobject-property-wrapper