UITextFieldDelegate vs UITextField control events

Question

If I want to handle changes to a UITextField, such as the user typing in it; it seems like this can be done either by assigning a delegate to that text field, and then having th

Answer 1

I have found out that shouldChangeCharactersInRange passes the same NSRange for insertion and deletion of text. You append a space and then delete it, and the parameters from shouldChangeCharactersInRange are indistinguishable from duplication of the text.

So shouldChangeCharactersInRange actually cannot predict the resulting text.