title: How to Read Number of lines in UITextView
body: <p>I am using <code>UITextView</code> In my View , I have requirement to count number of line contained by textview am using following function to read <code>'\n'</code> . However this works only when return key is pressed from keyboard , but in case line warapper (when i type continuous characters i wont get new line char ) . How do i read new char when line is changed without hitting return key ?? Anybody has nay idea how to .. please share it ..
  I am follwing this link  <a href="http://iphonedevelopertips.com/cocoa/how-to-dismiss-the-keyboard-when-using-a-uitextview.html" rel="nofollow noreferrer">Link</a></p>
  
  <pre><code>- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range 
   replacementText:(NSString *)text
  {
      // Any new character added is passed in as the "text" parameter
      if ([text isEqualToString:@"\n"]) {
          // Be sure to test for equality using the "isEqualToString" message
          [textView resignFirstResponder];
  
          // Return NO so that the final '\n' character doesn't get added
          return NO;
      }
      // For any other character return YES so that the text gets added to the view
      return YES;
  }
  </code></pre>