I need to catch two different swipping gestures using UISwipeGestureRecognizer(for example, UISwipeGestureRecognizerDirectionRight and UISwip
I would suggest you read a little bit on the technique that the gesture recognizers use to recognize the gesture. I suppose, the first recognizer tries to recognize the gesture, but realizes that he does not has to respond to it and then somehow he does not pass it on.
It's very useful to read how they work in order to understand how to use them.
Hope this helps.