Android Code Snippet [B4X] Programmatically open B4XComboBox

Private Sub OpenComboBox(x As B4XComboBox)
    #if B4A
    x.cmbBox.As(JavaObject).RunMethod("performClick", Null)
    #else if B4J
    x.cmbBox.As(JavaObject).RunMethod("show", Null)
    #else if B4i
    CallSub(x, "btn_click")
    #end if
End Sub