Limit the number of characters in UITextView

#define MAX_LENGTH 50

// UITextView delegate

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

    

    NSLog(@"type %d char", myTextView.text.length);    

        

    if (myTextView.text.length >= MAX_LENGTH && range.length == 0)

    {

        NSLog(@"max length is reached");

       

        return NO; // return NO to not change text

    }

    

}