Android Question How to modify Drawable properies of a command button?

' Define a color for Enabled state
Private cdwGreenColorEnabled As ColorDrawable
cdwGreenColorEnabled.Initialize(Colors.Green,10)

' Define a color for Pessed state
Private cdwGreenColorPressed As ColorDrawable
cdwGreenColorPressed.Initialize(Colors.RGB(255,182,18),10)

' Define a StateListDrawable
Private stdColor As StateListDrawable
stdColor.Initialize
stdColor.AddState(stdColor.State_Pressed, cdwGreenColorPressed)
stdColor.AddState(stdColor.State_Enabled, cdwGreenColorEnabled)
' Set StateListDrawable to button background

cmd1.Background = stdColor

#If B4A
    Private cdwGreenColorEnabled As ColorDrawable
    cdwGreenColorEnabled.Initialize(Colors.Green,10)

    ' Define a color for Pessed state
    Private cdwGreenColorPressed As ColorDrawable
    cdwGreenColorPressed.Initialize(Colors.RGB(255,182,18),10)

    ' Define a StateListDrawable
    Private stdColor As StateListDrawable
    stdColor.Initialize
    stdColor.AddState(stdColor.State_Pressed, cdwGreenColorPressed)
    stdColor.AddState(stdColor.State_Enabled, cdwGreenColorEnabled)
    cmd.As(Button).Background = stdColor
#End If