B4J Question ListView in B4J

Sub FileSelect
'Brings up ListView to allow selection of files.
'Called by BtnFiles_click
    Dim temp As String

    ImportFileView.Initialize("ImportFileView")
     Activity.AddView(ImportFileView, 0, 10%y, 100%x, 90%y)

    'Set the parameters for displaying the Items of the ListView

    FileLabel = ImportFileView.SingleLineLayout.Label

'FileLabel.TextColor = Colors.White
FileLabel.Style = FileLabel.Styl&"-fx-text-fill: White;"

    FileLabel.TextSize = DispInput.TextSize            '14*btnscale

'FileLabel.Color = Colors.DarkGray    
FileLabel.Style = FileLabel.Styl&"-fx-background-color: DarkGray;"
        
    FileLabel.Height = 5%y                                         'Label height and Item Height should match to avoid gsps & overlaps
    ImportFileView.SingleLineLayout.ItemHeight = ImportFileView.SingleLineLayout.Label.Height

'ImportFileView.Color = Colors.DarkGray                        'ListView color matches Label color
ImportFileView.Style = ImportFileView.Styl&"-fx-background-color: DarkGray;"

    ImportFileView.Clear                                        'Clear Listview before populating
    For FileN = 0 To FileListing1.Size-1                        'Builds the viewable list ImportFileView from the List "FileListing"
        temp = FileListing1.Get(FileN)                            'Get the value from the List
        ImportFileView.AddSingleLine(temp)                        'Store the value in the ListView
    Next
    lblTitle.Text = "Select File"
    lblTitle.BringToFront
    lblTitle.Height = 10%y
    lblTitle.width = 100%x
    lblTitle.Top = 0
    ListBack.BringToFront
    ListBack.Height = 10%y
    ListBack.Top = 0
    ListFlag = 1
End Sub