iOS Trigger an action tapping a textview

Is there a way to trigger an action when a user taps inside a textview area?
I know that I could put an invisible button on it, but that makes impossible to scroll the text.

Here what I've done, but with no luck:
int the nib file I've linked the UIView as delegate for the textview

I've declared my view conltroller in this way
@interface PickItemDetailViewController : UIViewController <UITextViewDelegate> {

then in the .m file I've put
- (void)textViewDidBeginEditingUITextView *)textView {
NSLog(@"textViewDidBeginEditing");
}

but nothing appears inside the console.

Do I miss anything?

Thanks, it works