SwiftUI_List_Segue

gistfile1. swift

import SwiftUI

final class TextModel: ObservableObject {
    @Published var roomIndex = Array<String>()
}

struct ContentView: View {

    @State private var tag : Int?
    @State private var view: AnyView?
    @State private var room = ""
    @State private var c: ContentView2?
    @ObservedObject var textModel = TextModel()

    var body: some View {
        NavigationView {
            VStack {
                TextField("Room", text: $room,
                          onCommit: {
                            textModel.roomIndex.append(room)
                            self.c = ContentView2(viewModel: textModel)
                            self.tag = 0
                          })
                    .textFieldStyle(RoundedBorderTextFieldStyle())
                    .padding()
                Spacer()

                NavigationLink(destination: AnyView(c), tag: self.tag ?? 0, selection: $tag) {
                    EmptyView()
                }
            }
            .navigationBarTitle("", displayMode: .inline)
            .onDisappear {
                room = ""
            }
        }
    }
}


struct ContentView2: View {

    @State private var tag : Int?
    @State private var view: AnyView?
    @State private var t: TextModel?
    @ObservedObject var viewModel: TextModel

    var body: some View {
        List(self.viewModel.roomIndex.indices, id: \.self) { index in
            NavigationLink(destination: Text (self.viewModel.roomIndex[index])) {  Text(self.viewModel.roomIndex[index]) }
        }
    }
}