amélioration navbar

NavigationExemple/ContentView.swift

@@ -10,28 +10,18 @@ import SwiftUI
 
 
 struct ContentView: View {
-    @State private var score = 0
+    @State private var fullScreen = false
     
     var body: some View {
         NavigationView{
             
-            Text("Score: \(score)")
-                .navigationTitle("Menu principal")
-                .navigationBarItems(
-                    
-                    trailing:
-                        HStack{
-                            Button("Add"){
-                                self.score += 1
-                            }
-                            
-                            Button("Sub"){
-                                self.score -= 1
-                            }
-                        }                    
-                    
-                )
+            Button("Toogle full screen"){
+                self.fullScreen.toggle()
+            }
+            .navigationBarTitle("Full Screen")
+            .navigationBarHidden(fullScreen)
         }
+        .statusBar(hidden: fullScreen)
         
     }
 }