Android Question Draw a Polygon on a Map

Sub MapFragment1_LongClick (mPoint As LatLng)
   ...
    gmap.AddMarker3(mPoint.Latitude,mPoint.Longitude, "MicroArea " &  Starter.numero_microarea,LoadBitmap(File.DirAssets,"flag50.png") ).InfoWindowShown = True
  ....

    lista_punta.Add(mPoint)
    If lista_punta.Size = 6 Then
        DrawPolygon(lista_punta)
    End If
End Sub

Sub MapFragment1_Click (Point As LatLng)
    .....
    Log(Point.Latitude)
    Log(Point.Longitude)
    .....
End Sub


Sub DrawPolygon (PointList As List)
    Dim GoogleMapsExtras1 As GoogleMapsExtras
    Dim polygonoptions1 As PolygonOptions
    polygonoptions1.Initialize
    polygonoptions1.FillColor=Colors.ARGB(150,255,255,0)
    polygonoptions1.AddPoints(PointList)
    polygonoptions1.StrokeColor=Colors.DarkGray
    polygonoptions1.StrokeWidth=3
    Dim pg As Polygon = GoogleMapsExtras1.AddPolygon(gmap, polygonoptions1)
End Sub

Dim lista_punta as List