Limit number of charchters in uitextview !

Question

Hello All ,

I am giving a text view to tweet some string .

I am applying the following method to restrict the number of characters to 140 in length.

- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text{


    if([text isEqualToString:@"\b"]){
        DLog(@"Ohoooo");
        return YES;
    }else if([[textView text] length] > 140){

        return NO;
    }

    return YES;
}

The code is working nicely except the first condition that backspace is not working. suppose that I have reached the limit of 140 characters so that the method will give me false and the user can not insert more characters but after that when I try to delete some characters the text view behave as it is disabled .

So the question how do delete characters from textview.text or re-enable the text view .

Answer 1

You should be looking for an empty string instead, as the apple reference says

If the user presses the Delete key, the length of the range is 1 and an empty string object replaces that single character.