我在func createDetailView（）这个函数中有错误

Question

我在func createDetailView（）函数中有错误

 


func handleProductGesture(recognizer : UISwipeGestureRecognizer)
    {

    if(UISwipeGestureRecognizerDirection.Left == recognizer.direction)
    {
     self.rightScrollBtnPressed(nil)
    }
    if(UISwipeGestureRecognizerDirection.Right == recognizer.direction)
    {
      self.leftScrollBtnPressed(nil)
    }


}


func createDetailView()
    {
        scrollView.contentSize = CGSizeMake(CGFloat(320*(pageImages.count)), scrollView.frame.height)
        scrollView.showsHorizontalScrollIndicator = false
        scrollView.scrollEnabled = false
        scrollView.bounces = false

    let rightSwipe = UITapGestureRecognizer(target: self, action: Selector(handleProductGesture()))
    rightSwipe.direction = UISwipeGestureRecognizerDirection.Right
    rightSwipe.delegate = self

    view.addGestureRecognizer(rightSwipe)

    let leftSwipe = UITapGestureRecognizer(target: self, action: Selector(handleProductGesture()))
    leftSwipe.direction = UISwipeGestureRecognizerDirection.Left
    leftSwipe.delegate = self
    view.addGestureRecognizer(leftSwipe)

     next = indexNumber-1
    self.rightScrollBtnPressed(nil)

}

Answer 1

问题在于您的选择器传递代码。您需要在您尝试调用它的代码中将方法名称指定为字符串。

将这些更改为：

let rightSwipe = UITapGestureRecognizer(target: self, action: Selector("handleProductGesture:"))

let leftSwipe  = UITapGestureRecognizer(target: self, action: Selector("handleProductGesture:"))