Set UITextField Maximum Length [duplicate]

Answer 1

I think this code would do the trick:

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range 
                                                       replacementString:(NSString*)string
{
   if (range.location >= MAX_LENGTH)
      return NO;
    return YES;
}

With this delegate method you can prevent the user to add more characters than MAX_LENGTH to your text field and the user should be allowed to enter backspaces if needed.