Android Question StdActionBar Title & Subtitle Color

Sub Activity_Create(FirstTime As Boolean)
   Dim rs As RichString
   rs.Initialize("this is the title")
   rs.Color(Colors.Red, 0, rs.Length)
   SetTitle(rs)
   rs.Initialize("subtitle")
   rs.Color(Colors.Green, 0, rs.Length)
   SetSubtitle(rs)
End Sub

Sub SetTitle(rs As RichString)
   Dim jo As JavaObject
   jo.InitializeContext
   jo.RunMethodJO("getActionBar", Null).RunMethod("setTitle", Array(rs))
End Sub

Sub SetSubtitle(rs As RichString)
   Dim jo As JavaObject
   jo.InitializeContext
   jo.RunMethodJO("getActionBar", Null).RunMethod("setSubtitle", Array(rs))
End Sub