Is there a way to be notified when the keyboard is about to show, or has shown? The following events would be great:
keyboardWillShow keyboardDidShow keyboardWillHi
As MatrixFrog mentioned you can use the Activity's onCofigurationChanged method. With that you have keyboardWillShow and keyboardWillHide.
onCofigurationChanged
To get the other two you can try using one of the InputMethodManager's methods but I don't think a callback like that exists.