ID and State

IDState.swift

struct ParentView: View {
    @State var id = UUID().uuidString
    var body: some View {
        VStack(spacing: 20) {
            VStack {
                Text("Parent View")
                Text(id).font(.footnote)
            }
            ChildView(name: "Child Maintains State On Update")
            ChildView(name: "Child Loses State On Update")
                .id(id)
            Button("Update") {
                id = UUID().uuidString
            }
        }
    }
}

struct ChildView: View {
    let name: String
    @State var id = UUID().uuidString
    var body: some View {
        VStack {
            Text(name)
            Text(id).font(.footnote)
        }
    }
}