center.AddObserver(UITextView.get_TextDidBeginEditingNotification(), didBegin);
center.AddObserver(UITextView.get_TextDidChangeNotification(), change);
center.AddObserver(UITextView.get_TextDidEndEditingNotification(), didEnd);
// slide the game view up when the keyboard is displayed
center.AddObserver(UIKeyboard.get_DidShowNotification(),
new cli.System.Action$$00601_$$$_Lcli__MonoTouch__Foundation__NSNotification_$$$$_(new cli.System.Action$$00601_$$$_Lcli__MonoTouch__Foundation__NSNotification_$$$$_.Method() {
@Override public void Invoke (NSNotification nf) {
if (_gameViewTransformed) {
// already transformed, bail with a warning
log.warning("Keyboard shown when already showing?", "viewTransform",