Gesture recognizer on button

I'd like to implement a gesture recognizer (swipe action) for a button. The problem is, the buttons are create programmatically and are or aren't existent based on a few conditions. So, I don't know if there are buttons, or how many.

I know I need something like:

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
    if (touch.view == aButtonView) {
        //get the button's tag
    }
}

Of course, the if-statement should return Yes when any button view is pressed...

Anyone ha开发者_JAVA技巧s any idea on what the word aButtonView should be? Or if it's even possible? Thanks in advance.

You should think about using UISwipeGestureRecognizer instances. Attach the gesture recognizer to the button objects -

UISwipeGestureRecognizer *swipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self
                                                                            action:@selector(handleSwipe:)];
swipe.direction = UISwipeGestureRecognizerDirectionUp;
[button addGestureRecognizer:swipe];
[swipe release];

and in handleSwipe:

- (void) handleSwipe:(UISwipeGestureRecognizer *)swipe {
    NSInteger tag = swipe.view.tag;
}