// Our observable object class
class GameSettings: ObservableObject { @Published var score = 0
}
// A view that expects to find a GameSettings object
// in the environment, and shows its score.
struct ScoreView: View { @EnvironmentObject var settings: GameSettings var body: some View { Text("Score: \(settings.score)") }
}
// A view that creates the GameSettings object,
// and places it into the environment for the
// navigation view.
struct ContentView: View { @StateObject var settings = GameSettings() var body: some View { NavigationView { VStack { // A button that writes to the environment settings Button("Increase Score") { settings.score += 1 } NavigationLink(destination: ScoreView()) { Text("Show Detail View") } } .frame(height: 200) } .environmentObject(settings) }
}