Swiftui: @environmentObject - Cannot use instance member within property initializer; property initializers run before 'self' is available

Question

I try to pass data from an @environmentObject to a @State object in the TopLevel

struct ContentView: View {

    @EnvironmentObject var countRecognizer: themeCounter
    @State var theme: themeModel = themeData[countRecognizer.themeCount]

    @State var hideBar = true

    var body: some View {
        ZStack {
            videoCard(theme: theme)
                .statusBar(hidden: true)

            Text("\(self.countRecognizer.themeCount)")

            if hideBar == true {

            }
        }

But I am getting this error: "Cannot use instance member within property initializer; property initializers run before 'self' is available"

the themeData Array should get the Int from the environment Object.

How can I fix this problem?

There is no themeData declaration in provided code - would you show how you pass it in? Is it global variable? — Asperi
themeData is from an Array following the Class, called themeModel: — Ian
import SwiftUI let themeData: [themeModel] = [ themeModel(titleL1: "", titleL2: "", subHead: ""), — Ian

workingdog workingdog · Accepted Answer · 2020-04-20T10:02:59

1

votes

do your

theme: themeModel = themeData[countRecognizer.themeCount]

in

.onAppear(...)

Swiftui: @environmentObject - Cannot use instance member within property initializer; property initializers run before 'self' is available

2 Answers