Return UITextView

Question

I am running into an issue when trying to return the keyboard in my UITextView when the return button is selected.

Here is my code:

- (void)viewDidLoad { 

    self.captionArea.delegate = self 
} 

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

    NSUInteger newLength = [self.captionView.text length] + [text length] - range.length;
    return (newLength > 30) ? NO : YES;

    if([text isEqualToString:@"\n"])
        [textView resignFirstResponder];
    return YES;

}

Any ideas why this is giving me issues? The view is just going to a newline, not returning.

Why are you using a `UITextView` instead of a `UITextField` is the length can only be 30 or less and only on one line? — rmaddy, Jul 28 '14 at 17:33
Did you figure this out? If so, please accept my answer below and close this question as resolved. — Rinat Khanov, Jul 29 '14 at 13:33
You need to be using a UITextField for this not a UITextView. — Fogmeister, Jul 29 '14 at 13:42

score 5 · Accepted Answer · edited May 23 '17 at 12:20

Most likely, your code simply never reaches the point where you ask text view to resign first responder. Try putting your resignFirstResponder method call above all return statements.

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

    if ([text isEqualToString:@"\n"]) {
        [textView resignFirstResponder];
        return NO;
    }    

    NSUInteger newLength = [textView.text length] + [text length] - range.length;
    return (newLength > 30) ? NO : YES;
}

Also, you should think about switching to UITextField if all you're trying to make is a simple single line text field, because UITextView doesn't come with standard methods to hide the keyboard. As explained in this popular StackOverflow answer, "hitting the return and hiding the keyboard for a UITextView does not follow the interface guidelines".

The method described above is a simple hack and don't work properly if user enters the text which contains \n (newline) character.

You should also return `NO` if you resign first responder since you don't want to bother with the length check nor do you want the newline added to the text view. — rmaddy, Jul 28 '14 at 17:34
This code will fail is the user pastes in text that happens to include a newline. — rmaddy, Jul 28 '14 at 17:35
One other issue (from the OP's original code). Why does this code check `self.captionView.text` instead of`textView.text`? — rmaddy, Jul 28 '14 at 17:56

Return UITextView

1 Answers1