Hi, I've been working on the UISwipeGesuture and get a return value not within the 1, 2, 4, 8 range as shown below. It actually return 3. Does it mean a bit control like 1 & 2 = 3? Thanks for any help. UISwipeGestureRecognizerDirection(rawValue: 3) (lldb) p UISwipeGestureRecognizer.Direction.right.rawValue (UInt) $R2 = 1 (lldb) p UISwipeGestureRecognizer.Direction.up.rawValue (UInt) $R4 = 4 (lldb) p UISwipeGestureRecognizer.Direction.down.rawValue (UInt) $R6 = 8 (lldb) p UISwipeGestureRecognizer.Direction.left.rawValue (UInt) $R8 = 2