How do I correct this issue with reading an Environment Object? (SwiftUI and working without a SceneDelegate) - firebase

Question

I wanted to write a template for apps that logs into firebase so that I can use it in future projects. I followed a tutorial online found on YouTube :
https://www.youtube.com/watch?v=DotGrYBfCuQ&list=PLBn01m5Vbs4B79bOmI3FL_MFxjXVuDrma&index=2
So the issue I'm facing is that in the video the variable userInfo was instantiated in the SceneDelegate, allowing the coder on YouTube to reference userInfo in his code. I tried doing the same in the AppDelegate and the App Struct. with no avail.
Here is the code in the App Struct:
import SwiftUI
import Firebase
#main
struct WoobApp: App {
// Adapts AppDelegate to SwiftUI
#UIApplicationDelegateAdaptor(AppDelegate.self) var appDelegate
var userInfo = UserInfo()
var body: some Scene {
WindowGroup {
InitialView()
}
}
}
class AppDelegate : NSObject, UIApplicationDelegate {
// Configure Firebase When App Launches
func application(_ application : UIApplication, didFinishLaunchingWithOptions launchOptions : [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool {
FirebaseApp.configure()
return true
}
}
I think the issue is in here, however I will post the rest of my code in case Im wrong:
InitialView:
struct InitialView: View {
#EnvironmentObject var userInfo : UserInfo
var body: some View {
Group {
if userInfo.isUserAuthenticated == .undefined {
UndefinedView()
}
else if userInfo.isUserAuthenticated == .signedOut {
UndefinedView()
}
else if userInfo.isUserAuthenticated == .signedIn {
UndefinedView()
}
}
.onAppear{
self.userInfo.configureFirebaseStateDidChange()
}
}
And here is the User data :
class UserInfo : ObservableObject {
enum FBAuthState {
case undefined, signedIn, signedOut
}
#Published var isUserAuthenticated : FBAuthState = .undefined
func configureFirebaseStateDidChange() {
isUserAuthenticated = .signedIn
isUserAuthenticated = .signedOut
}
}
Thanks in advance for any help, Id really appreciate it so thank you!!!!

Answer 1

You have to actually pass that userInfo variable into your view hierarchy so that it's visible to InitialView and its children:
#ObservedObject var userInfo = UserInfo()
var body: some Scene {
WindowGroup {
InitialView()
.environmentObject(userInfo)
}
}
This principal of passing it via environmentObject is true whether you're using the SwiftUI lifecycle or a SceneDelegate. More reading on environmentObject: https://www.hackingwithswift.com/quick-start/swiftui/how-to-use-environmentobject-to-share-data-between-views
You have a choice of whether to declare userInfo as an ObservedObject or StateObject that may depend on your OS target version: What is the difference between ObservedObject and StateObject in SwiftUI