[英]Unrecognized selector error when defining tap gesture in custom view [Swift]
I'm creating a custom view from xib. 我正在从xib创建一个自定义视图。 I want to close the view when touched inside but selector is not recognized.
我想在内部触摸时关闭视图,但无法识别选择器。 I used it as;
我用它作为;
none of them worked. 他们都没有工作。 Do you have any idea what am I doing wrong?
你知道我在做什么错吗?
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()
}
}
It turns out that it was related to part of my code where I said unrelated code. 原来,这与我所说的无关代码有关。
I was changing calculating relative position of my custom view. 我正在更改计算自定义视图的相对位置。 I was changing frame of
contentView
, which was the wrong part. 我正在更改
contentView
框架,这是错误的部分。 Instead I manipulated self
. 相反,我操纵
self
。 Now everything work as I want. 现在一切都按我的意愿进行。
Working version my function: 工作版本我的功能:
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!)
}
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