how to set UIScreenEdgePanGestureRecognizer with two edges

user_3793165 0
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I'd like to set a EdgePanGesture to change my ViewController when the user swipe from left or from right direction. With only one direction it works perfect:

func addingEdgePanDetection() {
    let edgePan = UIScreenEdgePanGestureRecognizer(target: self, action: #selector(screenEdgeSwiped))
    edgePan.edges = .left
    view.addGestureRecognizer(edgePan)
}

but, as you can read in Apple' documentation edges is UIRectEdge type and it conforms de OptionSet Protocol so

You can add these constants together to specify multiple edges at the same time.

I've tried three different ideas with no success:

1.- edgePan.edges = [UIRectEdge.left, UIRectEdge.right]
2.- edgePan.edges = UIRectEdge.left | UIRectEdge.right
3.- edgePan.edges = UIRectEdge(rawValue: UIRectEdge.left.rawValue | UIRectEdge.right.rawValue)

any idea? I'm looking for an answer with only one gestureRecognizer. Thanks!

edges swipe gesture swift ios
1 Answers

Use two different UIScreenEdgePanGestureRecognizers to allow user to swipe from left and right directions.

var screenLeftEdgeRecognizer: UIScreenEdgePanGestureRecognizer!
var screenRightEdgeRecognizer: UIScreenEdgePanGestureRecognizer!

In ViewDidLoad:

screenLeftEdgeRecognizer = UIScreenEdgePanGestureRecognizer(target: self, action: #selector(rotateBall(_:)))
screenLeftEdgeRecognizer.edges = .left
view.addGestureRecognizer(screenLeftEdgeRecognizer)

screenRightEdgeRecognizer = UIScreenEdgePanGestureRecognizer(target: self, action: #selector(rotateBall(_:)))
screenRightEdgeRecognizer.edges = .right
view.addGestureRecognizer(screenRightEdgeRecognizer)

Practice:

I've tried what you had tried before in left, right, top, bottom, all cases like screenRightEdgeRecognizer.edgePan.edges = .all etc. But didn't get any success even the target action method is not getting called.

user_55193290
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