ios 4.2 - Close the keyboard on UITextField

Question

I'm a newbie developing for iOS devices. I inserted an UITextField on InterfaceBuilder, and I assigned with the code:

@interface ComposeViewController : UIViewController {
 id <ComposeViewControllerDelegate> delegate;
 IBOutlet UITextField *notificationTitle;
}

How I could allow to close the keyboard when the user press the "Return" key?

Answer 1

Set the Delegate of the UITextField to your ViewController, add a referencing outlet between the File's Owner and the UITextField, then implement this method:

- (BOOL)textFieldShouldReturn:(UITextField *)textField {
   if (textField == yourTextField) {
       [textField resignFirstResponder];
   }
   return NO;
}