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swiftsprite-kitswipe

UIGestureReconizer Crash - Unrecognized Gesture Error

Hi so my GestureReconizers crash my app when I use them. I get an error saying that it received an unrecognized gesture and I get a SIGABRT error too. I've tried looking at other posts and theres been no fix yet. [BTW, this is in my didMoveToView section]

var upSwipe = UISwipeGestureRecognizer(target: self, action: Selector("handleSwipes;"))
var downSwipe = UISwipeGestureRecognizer(target: self, action:     Selector("handleSwipes;"))
var rightSwipe = UISwipeGestureRecognizer(target: self, action: Selector("handleSwipes;"))
var leftSwipe = UISwipeGestureRecognizer(target: self, action: Selector("handleSwipes;"))

    upSwipe.direction = .Up
    downSwipe.direction = .Down
    rightSwipe.direction = .Right
    leftSwipe.direction = .Left

    view.addGestureRecognizer(upSwipe)
    view.addGestureRecognizer(downSwipe)
    view.addGestureRecognizer(leftSwipe)
    view.addGestureRecognizer(rightSwipe)

    func handleSwipes(sender: UISwipeGestureRecognizer) {
        if sender.direction == .Left {
            msgText("Left")
        }
        if sender.direction == .Right {
            msgText("Right")
        }
        if sender.direction == .Up {
            msgText("Up")
        }
        if sender.direction == .Down {
            msgText("Down")
        }

       }

I'm also trying to have the gestures only active when map.zPosition == 100. So if you know a good way to do that, that'd be awesome.

Solution

  • You should use colon ":" for handle Swipes not semi colon ";"

    That was the reason your code was crashing

    Here is your fixed code

    override func viewDidLoad() {
    super.viewDidLoad()

    var upSwipe = UISwipeGestureRecognizer(target: self, action: Selector("handleSwipes:"))
    var downSwipe = UISwipeGestureRecognizer(target: self, action: Selector("handleSwipes:"))
    var leftSwipe = UISwipeGestureRecognizer(target: self, action: Selector("handleSwipes:"))
    var rightSwipe = UISwipeGestureRecognizer(target: self, action: Selector("handleSwipes:"))

    leftSwipe.direction = .Left
    rightSwipe.direction = .Right
    upSwipe.direction = .Up
    downSwipe.direction = .Down

    view.addGestureRecognizer(leftSwipe)
    view.addGestureRecognizer(rightSwipe)
    view.addGestureRecognizer(upSwipe)
    view.addGestureRecognizer(downSwipe)

}
func handleSwipes(sender:UISwipeGestureRecognizer) {
    if (sender.direction == .Left) {
        print("Swipe Left")

    }

    if (sender.direction == .Right) {
        print("Swipe Right")
    }
    if (sender.direction == .Up) {
        print("Swipe Up")
    }
    if (sender.direction == .Down) {
        print("Swipe Down")
    }
}

    Output

    ouput