Adding a cancel button to UITextField keyboard

Question

Is there a way to add a cancel button to the keyboard displayed for UITextField? Looking over the UITextInputTraits Protocol Reference, I could not

Answer 1

I just dropped a UIToolbar into my view controller in Interface Builder, then:

@property IBOutlet UIToolbar *keyboardAccessory;

-(void) viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    // this is so I can edit it in Interface Builder, but it doesn't show in the view
    [keyboardAccessory removeFromSuperview];
}

-(BOOL) textFieldShouldBeginEditing:(UITextField*)textField {
    textField.inputAccessoryView = keyboardAccessory;
    return YES;
}

-(IBAction) pressedCancelButton {
    [self.view endEditing:YES];
}

Voila!