osx - NSPressGestureRecognizer called before minimumPressDuration -

i need nsbutton respond regular clicks, long presses. adding nspressgesturerecognizer so:

override func viewdidload() {     super.viewdidload()      let gr = nspressgesturerecognizer()     gr.minimumpressduration = 1     gr.action = #selector(handlelongpress)     button.addgesturerecognizer(gr)   }  func handlelongpress(gr: nspressgesturerecognizer) {      if gr.state == .began {         swift.print("long press")     }  } 

unfortunately, handlelongpress randomly fires @ short single clicks, or double clicks. happens if set minimumpressduration higher values.

i have tried playing shouldberequiredtofailbygesturerecognizer not solving problem.

is there missing code?

i have solved handling multiple gesture recognizers:

the class must implement nsgesturerecognizerdelegate

var singleclick:nsclickgesturerecognizer? var longclick:nspressgesturerecognizer?  override func viewdidload() {     super.viewdidload()      longclick = nspressgesturerecognizer()     longclick!.minimumpressduration = 1     longclick!.action = #selector(handlegesturelong)     longclick!.delegate = self      singleclick = nsclickgesturerecognizer()     singleclick?.numberofclicksrequired = 1     singleclick!.action = #selector(handlegesturesingle)     singleclick!.delegate = self      btn.addgesturerecognizer(longclick!)     btn.addgesturerecognizer(singleclick!)  }  func gesturerecognizer(gesturerecognizer: nsgesturerecognizer, shouldrequirefailureofgesturerecognizer othergesturerecognizer: nsgesturerecognizer) -> bool {     if gesturerecognizer == singleclick && othergesturerecognizer == longclick {         return false     }     return true }  func handlegesturesingle(gr: nsclickgesturerecognizer) {      switch gr.state {      case .ended:         print("single click")         break     default:         break      } }  func handlegesturelong(gr: nspressgesturerecognizer) {      switch gr.state {      case .began:         print("long click")         break     default:         break      } }