iOS Question Cannot see my actionsheet

'Code module
#Region  Project Attributes 
    #ApplicationLabel: ATCNotes
    #Version: 1.0.0 
    'Orientation possible values: Portrait, LandscapeLeft, LandscapeRight and PortraitUpsideDown
    #iPhoneOrientations: Portrait
    #iPadOrientations: Portrait
    #Target: iPhone, iPad
    #ATSEnabled: True
    #MinVersion: 7
#End Region

Sub Process_Globals
    'These global variables will be declared once when the application starts.
    'Public variables can be accessed from all modules.
    Public App As Application
    Public NavControl As NavigationController
    Private Page1 As Page

    Private pScreenHeight = 0 As Int
    Private pScreenWidth = 0 As Int

    Private penColorSheet As ActionSheet

End Sub

Private Sub Application_Start (Nav As NavigationController)
    'SetDebugAutoFlushLogs(True) 'Uncomment if program crashes before all logs are printed.
    NavControl = Nav
    Page1.Initialize("Page1")
    Page1.Title = "ATCNotes"
    Page1.RootPanel.Color = Colors.White
    NavControl.ShowPage(Page1)

    pScreenHeight = GetDeviceLayoutValues.Height
    pScreenWidth = GetDeviceLayoutValues.Width

    penColorSheet.Initialize("clickPenColorSheet", "", "", "", Array As String("1111", "2222", "3333", "4444"))
    penColorSheet.Show(Page1.RootPanel)
   
End Sub

Private Sub clickPenColorSheet_Click(Item As String)
    Dim value As Int
    Select Item
        Case "1111"
            value = 1
        Case "2222"
            value = 2
        Case "333"
            value = 3
        Case "4444"
            value = 4
    End Select
End Sub

Private Sub Page1_Resize(Width As Int, Height As Int)
   
End Sub

Private Sub Application_Background
   
End Sub