SwiftUI view is not updating to EnvironmentObject change

Question

I\'m creating a SwiftUI app that includes Firebase to enable logging into an account, extremely simple, just a ui form with password and email fields, then a button to submit. O

Answer 1

Try to make use of the @Published property. Try to implement something like this:

class SessionStore : ObservableObject {
    @Published var session: User
}

class User: ObservableObject {
    @Published var uid: String
    @Published var email: String?
    @Published var displayName: String?

    init(uid: String, displayName: String?, email: String?) {
        self.uid = uid
        self.email = email
        self.displayName = displayName
    }

}

This should update your view when a change was made in the User object, like the email or displayname because they're Published. Hope this will help, gl

UPDATED:

Because SwiftUI doesn't support nested Observables yet, you need to notify your main model by yourself.

See this snippet how to work with a nested ObservableObject inside a ObservableObject:

class Submodel1: ObservableObject {
  @Published var count = 0
}

class Submodel2: ObservableObject {
  @Published var count = 0
}

class Model: ObservableObject {
  @Published var submodel1: Submodel1 = Submodel1()
  @Published var submodel2: Submodel2 = Submodel2()

    var anyCancellable: AnyCancellable? = nil
    var anyCancellable2: AnyCancellable? = nil

    init() {

        anyCancellable = submodel1.objectWillChange.sink { (_) in
            self.objectWillChange.send()
        }

        anyCancellable2 = submodel2.objectWillChange.sink { (_) in
            self.objectWillChange.send()
        }
    }
}

When data inside a submodel changes, the main Model will notify itself. This will result in a update on the view.

Let me know if this helped you out.. Goodluck!