Variable used before being initialized with an EnvironmentObject in SwiftUI

Question

I'am using an init to initialize my variable groupManager from the environmentObject objCOurse.

But Xcode tells me Variable 'self.groupeManager' used before being initialized

Where is the mistake ?

struct DepartsSimultanesView: View {
    @EnvironmentObject var objCourse : CourseActuelle
    @State var selectedParcoursIndexArray : [Int] = []
    @State var groupeManager : GroupeManager
    
    init(groupeManager : GroupeManager) {
        self.groupeManager = GroupeManager(courseId: objCourse.id!) // Variable 'self.groupeManager' used before being initialized
        for _ in (0 ..< groupeManager.groupeList.count) {
            self.selectedParcoursIndexArray.append(0)
        }
    }

Does this answer your question? [SwiftUI @State var initialization issue](https://stackoverflow.com/questions/56691630/swiftui-state-var-initialization-issue) — vadian, Feb 11 '23 at 11:08
supposedly Xcode 14 you can do this, but it doesn't work for me either (and can't find anyone else talking about it except sarunw) https://sarunw.com/posts/state-variable-initialization/ — Steven Stefanik, Feb 25 '23 at 21:43

score 0 · Answer 1 · answered Feb 11 '23 at 11:07

Thanks to @vadian comments, here what is working for me :

 init(groupeManager : GroupeManager, objCourse : CourseActuelle) {
        _groupeManager = State(initialValue: GroupeManager(courseId: objCourse.id!))
        var Varray : [Int] = []
        for _ in (0 ..< groupeManager.groupeList.count) {
            Varray.append(0)
        }
        _selectedParcoursIndexArray = State(initialValue: Varray)
        print(selectedParcoursIndexArray)
    }

Variable used before being initialized with an EnvironmentObject in SwiftUI

1 Answers1