ios - How to change the swipe direction of UISwipegestureRecognizer using @IBAction -

for reason won't work, doing wrong here?

the second option is: creating

uiswipegesturerecognizer()

then setting using

.direction = .up

and adding using

addgesturerecognizer()

works. want using code below.

class faceviewcontroller : uiviewcontroller {    @iboutlet weak var labelvar: uilabel!      // mark: gestures   @ibaction func swiping(sender: uiswipegesturerecognizer) {         sender.direction = .up         self.test()      }        func test() {       labelvar!.text = "up"      }  }