我在 func createDetailView() 这个函数中有错误答案

【问题标题】：i have error in func createDetailView() this function我在 func createDetailView() 这个函数中有错误
【发布时间】：2015-03-16 10:11:42
【问题描述】：

我在 func createDetailView() 这个函数中有错误

func handleProductGesture(识别器：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)

}

【问题讨论】：

什么错误？哪条线？
错误：- 在调用中缺少参数 #1 的参数
行 :- 让 rightSwipe = UITapGestureRecognizer(target: self, action: Selector(handleProductGesture()))
stackoverflow.com/questions/24007650/selector-in-swift ?

标签： ios objective-c iphone swift

【解决方案1】：

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

将它们更改为：

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

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

【讨论】：