#State var doesn't store value - swiftui

Question

My goal is to pass values between views, from Chooser to ThemeEditor. When the user presses an icon, I'm saving the object that I want to pass and later, using sheet and passing the newly created view with the content of the #State var.
The assignment is done successfully to the #State var themeToEdit, however it is nil when the ThemeEditor view is created in the sheet
What am I doing wrong?
struct Chooser: View {
#EnvironmentObject var store: Store
#State private var showThemeEditor = false
#State private var themeToEdit: ThemeContent?
#State private var editMode: EditMode = .inactive
#State private var isValid = false
var body: some View {
NavigationView {
List {
ForEach(self.store.games) { game in
NavigationLink(destination: gameView(game))
{
Image(systemName: "wrench.fill")
.imageScale(.large)
.opacity(editMode.isEditing ? 1 : 0)
.onTapGesture {
self.showThemeEditor = true
/* themeInfo is of type struct ThemeContent: Codable, Hashable, Identifiable */
self.themeToEdit = game.themeInfo
}
VStack (alignment: .leading) {
Text(self.store.name(for: something))
HStack{
/* some stuff */
Text(" of: ")
Text("Interesting info")
}
}
}
}
.sheet(isPresented: $showThemeEditor) {
if self.themeToEdit != nil { /* << themeToEdit is nil here - always */
ThemeEditor(forTheme: self.themeToEdit!, $isValid)
}
}
}
.environment(\.editMode, $editMode)
}
}
}
struct ThemeEditor: View {
#State private var newTheme: ThemeContent
#Binding var isValid: Bool
#State private var themeName = ""
init(forTheme theme: ThemeContent, isValid: Binding<Bool>) {
self._newTheme = State(wrappedValue: theme)
self._validThemeEdited = isValid
}
var body: some View {
....
}
}
struct ThemeContent: Codable, Hashable, Identifiable {
/* stores simple typed variables of information */
}

Answer 1

The .sheet content view is captured at the moment of creation, so if you want to check something inside, you need to use .sheet(item:) variant, like
.sheet(item: self.$themeToEdit) { item in
if item != nil {
ThemeEditor(forTheme: item!, $isValid)
}
}
Note: it is not clear what is ThemeContent, but it might be needed to conform it to additional protocols.

Answer 2

Use Binding. Change your ThemeEditor view with this.
struct ThemeEditor: View {
#Binding private var newTheme: ThemeContent?
#Binding var isValid: Bool
#State private var themeName = ""
init(forTheme theme: Binding<ThemeContent?>, isValid: Binding<Bool>) {
self._newTheme = theme
self._isValid = isValid
}
var body: some View {
....
}
}
And for sheet code
.sheet(isPresented: $showThemeEditor) {
ThemeEditor(forTheme: $themeToEdit, isValid: $isValid)
}
On Action
.onTapGesture {
/* themeInfo is of type struct ThemeContent: Codable, Hashable, Identifiable */
self.themeToEdit = game.themeInfo
self.showThemeEditor = true
}