Problems with EnvironmentObject in ModalView - swiftui

Question

I have created a simple List and want to add users to it. My project has CoreDate activated and I have add the following Code to the SceneDelegate:
let userStorage = UserStorage()
let contentView = ContentView().environment(\.managedObjectContext, context).environmentObject(userStorage)
The code of the ContentView is this:
import SwiftUI
struct User: Identifiable {
var id = UUID()
var firstName = ""
var lastName = ""
}
class UserStorage: ObservableObject {
#Published var users = [User]()
}
struct ContentView: View {
#State private var presentation = false
#EnvironmentObject var userStorage: UserStorage
var body: some View {
VStack {
Button(action: {
self.presentation = true
}) {
Text("New User")
}.sheet(isPresented: $presentation, onDismiss: {
self.presentation = false
}) {
newuserView(presentation: self.$presentation, newUser: User())
}
List(userStorage.users) { singleUser in
VStack {
Text(singleUser.firstName)
Text(singleUser.lastName)
}
}
}
}
}
struct newuserView : View {
#Binding var presentation: Bool
#State var newUser: User
#EnvironmentObject var userStarage: UserStorage
var body: some View {
VStack {
TextField("Put in first name please", text:$newUser.firstName)
TextField("Put in last name please", text:$newUser.lastName)
Button(action: {
self.userStarage.users.append(self.newUser)
self.presentation = false
}) {
Text("Add new User")
}disabled(newUser.lastName.isEmpty || newUser.firstName.isEmpty)
}.padding(.horizontal)
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
When I run my project and want to add a user, I get the following error:
Thread 1: Fatal error: No ObservableObject of type UserStorage found.
A View.environmentObject(_:) for UserStorage may be missing as an ancestor of this view.
I have tried to do this with .sheet, but it doesn't work

Answer 1

Sheet creates different view hierarchy so .environmentObject is not injected in view to be shown in sheet by default - you have to do it manually
}.sheet(isPresented: $presentation, onDismiss: {
self.presentation = false
}) {
newuserView(presentation: self.$presentation, newUser: User())
.environmentObject(self.userStorage)
}