Adding Observables class

DHBW-Service/Views/ContentView.swift

@@ -9,22 +9,36 @@ import SwiftUI
 import CoreData
 
 struct ContentView: View {
+    @EnvironmentObject var settings: LocalSettings
     @State private var selection = 0
     
     var body: some View {
-        TabView(selection: $selection) {
-            HomeView()
-                .tabItem {
-                    VStack {
-                        Image(systemName: "house.fill")
-                        Text("Home")
-                    }
+        Group {
+            if(!settings.isFirstOpening) {
+                TabView(selection: $selection) {
+                    HomeView()
+                        .tabItem {
+                            VStack {
+                                Image(systemName: "house.fill")
+                                Text("Home")
+                            }
+                        }
+                        .tag(0)
                 }
-                .tag(0)
+            } else {
+                Button(action: {
+                    self.settings.isFirstOpening = !self.settings.isFirstOpening
+                }){
+                    Text("First opening toggle")
+                }
+            }
         }
     }
 }
 
+extension ContentView{
+}
+
 struct ContentView_Previews: PreviewProvider {
     static var previews: some View {
         ContentView()

DHBW-Service/Views/Tabs/HomeView.swift

@@ -8,13 +8,23 @@
 import SwiftUI
 
 struct HomeView: View {
+    @EnvironmentObject var settings: LocalSettings
+    
     var body: some View {
-        Text(/*@START_MENU_TOKEN@*/"Hello, World!"/*@END_MENU_TOKEN@*/)
+        VStack {
+            Button(action: {
+                self.settings.isFirstOpening = !self.settings.isFirstOpening
+            }){
+                Text("First opening toggle")
+            }
+            Text("Test")
+        }
     }
 }
 
 struct HomeView_Previews: PreviewProvider {
     static var previews: some View {
         HomeView()
+            .preferredColorScheme(.dark)
     }
 }