In these methods, I get corresponding phases:
touchesBegan:withEvent: UITouchPhaseBegan,
touchesMoved:withEvent: UITouchPhaseMoved,
touchesEnded:withEvent: UITouchPhaseEnded,
touchesCancelled:withEvent: UITouchPhaseCancelled.
Where can I get a touch event with this phase: UITouchPhaseStationary?