Ignore Tab character in UITextField… (iPad app)

Question

I have a TableView with TextFields in each cell and I want to those textfields ignore the character tab (\\t).

When the tab key is pressed, the t

Answer 1

This seems to be a problem with the tab (\t) character. This character is not handled like normal characters (e.g. a, b, c, 0, 1, 2, ...) and thus the

              - (BOOL)textField:(UITextField *)textField 
  shouldChangeCharactersInRange:(NSRange)range 
              replacementString:(NSString *)string;

delegate method won't ever be called.

The result of using a tab on e.g. an external keyboard or in the simulator is that a currently active textfield resigns it's first responder status and the result of

[textField nextResponder]

will become first responder instead.

What IMO currently is a bug (iOS SDK 4.3) is that the delegate method

- (BOOL)textFieldShouldEndEditing:(UITextField *)textField

is only called once (when you return yes) and when you reselect the same textfield and use the tab key again, the method won't be called again.