ios - 在自定义 View 中定义点击手势时出现无法识别的选择器错误 [Swift]

Question

我正在从 xib 创建自定义 View 。我想在触摸内部时关闭 View ，但无法识别选择器。我用它作为；

1. 关闭 View
2. self.closeView
3. ToolTipView.closeView

它们都不起作用。你知道我做错了什么吗？

<小时/>

class ToolTipView: UIView {

    @IBOutlet private var contentView:UIView?

    override init(frame: CGRect) { // for using CustomView in code
        super.init(frame: frame)
        self.commonInit()
    }

    required init?(coder aDecoder: NSCoder) { // for using CustomView in IB
        super.init(coder: aDecoder)
        self.commonInit()
    }

    private func commonInit() {
        NSBundle.mainBundle().loadNibNamed("ToolTipView", owner: self, options: nil)
        guard let content = contentView else { return }
        content.frame = self.bounds
        content.autoresizingMask = [.FlexibleHeight, .FlexibleWidth]
        self.addSubview(content)
    }

    func showTip(viewToAlign: UIView){

        //some unrelated code

        UIApplication.sharedApplication().keyWindow!.addSubview(contentView!)

        contentView!.userInteractionEnabled = true           
        let tapGesture = UITapGestureRecognizer.init(target: contentView, action: #selector(self.closeView))
        contentView!.addGestureRecognizer(tapGesture)

    }

    func closeView() {
        self.removeFromSuperview()
    }
}

Answer 1

事实证明，它与我所说的不相关代码的部分代码有关。

我正在更改自定义 View 的相对位置的计算。我正在更改 contentView 的框架，这是错误的部分。相反，我操纵了self。现在一切都按我想要的方式进行。

我的功能的工作版本:

func showTip(viewToAlign: UIView, viewToAdd: UIView){

    self.userInteractionEnabled = true

    let relativeFrame = viewToAlign.convertRect(viewToAlign.bounds, toView: nil)
    let relativeCenter = viewToAlign.convertPoint(viewToAlign.bounds.origin, toView: nil)

    self.frame = CGRectMake(relativeFrame.minX - (self.frame.size.width + 5), relativeCenter.y - self.frame.size.height/2 , self.frame.size.width, self.frame.size.height)

    self.layer.masksToBounds = false
    self.layer.shadowOffset = CGSizeMake(0, 0)
    self.layer.shadowRadius = 5
    self.layer.shadowOpacity = 0.5

    viewToAdd.addSubview(self)

    tapGesture = UITapGestureRecognizer.init(target: self, action: #selector(closeView))
    viewToAdd.addGestureRecognizer(tapGesture!)
}