iPhone restrict user from entering space in textfield

Question

i want to restrict user from entering space in a UITextField. for this i m using this code

- (BOOL)textField:(UITextField *)textField shouldChangeCharacters         


        

Answer 1

Below is what I am using for password and confirm password

In PrefixHeader.pch file add below

#define NONACCEPTABLE_PASSWORD_CHARACTERS @" "

And in code use below.

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


    if (textField==passwordTF || textField==confirmPasswordTF) {
        NSCharacterSet *cs = [NSCharacterSet characterSetWithCharactersInString:NONACCEPTABLE_PASSWORD_CHARACTERS];

        NSString *filtered = [[string componentsSeparatedByCharactersInSet:cs] componentsJoinedByString:@""];

        return [string isEqualToString:filtered];
    }

    return YES;
}