How to have a UISwipeGestureRecognizer AND UIPanGestureRecognizer work on the same view

Question

How would you setup the gesture recognizers so that you could have a UISwipeGestureRecognizer and a UIPanGestureRecognizer work at the same

Answer 1

Here is a full solution for detecting pan and swipe directions (utilizing 2cupsOfTech's swipeThreshold logic):

public enum PanSwipeDirection: Int {
    case up, down, left, right, upSwipe, downSwipe, leftSwipe, rightSwipe
    public var isSwipe: Bool { return [.upSwipe, .downSwipe, .leftSwipe, .rightSwipe].contains(self) }
    public var isVertical: Bool { return [.up, .down, .upSwipe, .downSwipe].contains(self) }
    public var isHorizontal: Bool { return !isVertical }
}

public extension UIPanGestureRecognizer {

   var direction: PanSwipeDirection? {
        let SwipeThreshold: CGFloat = 1000
        let velocity = self.velocity(in: view)
        let isVertical = abs(velocity.y) > abs(velocity.x)
        switch (isVertical, velocity.x, velocity.y) {
        case (true, _, let y) where y < 0: return y < -SwipeThreshold ? .upSwipe : .up
        case (true, _, let y) where y > 0: return y > SwipeThreshold ? .downSwipe : .down
        case (false, let x, _) where x > 0: return x > SwipeThreshold ? .rightSwipe : .right
        case (false, let x, _) where x < 0: return x < -SwipeThreshold ? .leftSwipe : .left
        default: return nil
        }
    }

}

Usage:

@IBAction func handlePanOrSwipe(recognizer: UIPanGestureRecognizer) {

    if let direction = recognizer.direction {
        if direction == .leftSwipe {
            //swiped left
        } else if direction == .up {
            //panned up
        } else if direction.isVertical && direction.isSwipe {
            //swiped vertically
        }
    }

}