iOS Question NavigationBar disabled with TabBarController?

[Emme Developer]

Hi everybody! I don't know why, but i don't see the navigationbar, after putting a tabbarcontroller.
I've 3 pages. First page is like a splash screen, so i've a button and disabled navigationbarvisible.
When i click on button, i need to show tabbarcontroller, in which each page as title and 2 custom button (left and right). This is my code. Anyone can help me? Thanks

This is the first page

Spoiler: Application start

Private Sub Application_Start (Nav As NavigationController)
    Utils.loc.Initialize(File.DirAssets,"dgtran.db",False)
  
    NavControl = Nav
    MainPage.Initialize("Page1")
  
    MainPage.RootPanel.Color = Colors.White
    NavControl.ShowPage(MainPage)
  
    MainPage.RootPanel.LoadLayout("Main")
    NavControl.NavigationBarVisible = False
  
    tbc.Initialize("")
  
End Sub


Sub button1_Click
    Utils.CreateLayout
End Sub

Spoiler: Second page

Sub CreateLayout
    Dim create As Boolean = true
  
    If create Then
        Main.App.KeyController = Main.tbc
      
        Dim no As NativeObject = Main.tbc
        no.GetField("tabBar").SetField("tintColor", no.ColorToUIColor(0xFFED7B53)) 'active item

  
        Dim tbb As TabBarItem
        tbb.Initialize("Scala grafica",LoadBitmap(File.DirAssets,"ios_menu_0_off.png"),LoadBitmap(File.DirAssets,"ios_menu_0_on.png"))
        Dim scal As Scala
        scal.Initialize()
        scal.GetPage.TabBarItem = tbb


        Dim tbb As TabBarItem
        tbb.Initialize("Analisi",LoadBitmap(File.DirAssets,"ios_menu_1_off.png"),LoadBitmap(File.DirAssets,"ios_menu_1_on.png"))

        Dim an As analisi
        an.Initialize()
        an.GetPage.TabBarItem = tbb
      
        Main.tbc.Pages = Array(scal.GetPage,an.GetPage)
    Main.NavControl.NavigationBarVisible = True


    End If
End Sub

 

[Erel]

The navigation bar is part of the NavigationController. Once you set App.KeyController to be TabBarController then you will lose the navigation bar.

 

[Emme Developer]

Thanks for answer! So is not there any way to obtain this screen?

 

[Erel]

You can put a NavigationController inside each of the tabs: https://www.b4x.com/android/forum/threads/navigationbar-inside-tabbarcontroller.50653/