Ios 自定义视图按钮单击它'；它不工作了

这是我的密码

我通过在xib中定义视图来注册按钮操作。 btn已连接到dismissButtonClick，但当我单击该按钮时，它不起作用。 因此，我尝试了一种方法来覆盖触摸功能，但它不起作用

我的第三次尝试是手势注册。 它也不起作用

我再也没有办法了

请帮帮我，伙计们

@objc public class CustomView : UIView  {
    static let xibName = "xibName"

    @IBOutlet weak var mainView: UIView!
    @IBOutlet weak var viewTopAnchor: NSLayoutConstraint?
    @IBOutlet weak var btn: UIButton?
    var completion: (() -> Void)?

    var parentView : UIViewController!

    override init(frame: CGRect) {
        super.init(frame: frame)
    }

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
    }

    public static func getInstance(_ vc : UIViewController, _ completion : (() -> Void)? ) -> UIView {

        let view = Bundle.main.loadNibNamed(CustomView.xibName, owner: self, options: nil)?.first as! CustomView

        view.parentView = vc
        view.completion = completion

        view.initUI()

        return view
    }

    func initUI() {

        let tapGestureRecognizer = UITapGestureRecognizer(target: self, action:#selector(CustomView.dismiss))
        mainView.addGestureRecognizer(tapGestureRecognizer)

        btn?.addTarget(self, action: #selector(CustomView.dismiss), for: .touchUpInside)


        parentView.view.addSubview(self)

        self.translatesAutoresizingMaskIntoConstraints = false

        self.leadingAnchor.constraint(equalTo: parentView.view.leadingAnchor, constant: 0).isActive = true
        self.trailingAnchor.constraint(equalTo: parentView.view.trailingAnchor, constant: 0).isActive = true
        viewTopAnchor?.constant = -150
        viewTopAnchor?.isActive = true

        setNeedsDisplay()
        layoutIfNeeded()

        DispatchQueue.main.asyncAfter(deadline: .now() + 0.5 ) {
            self.mainView.isHidden = false
            self.showAnimation()
        }
}


    //top down anim
    private func showAnimation(){
        DispatchQueue.main.asyncAfter(deadline: .now() ) {
            self.viewTopAnchor?.constant = 0
            UIView.animate(withDuration: 0.5) {
                self.layoutIfNeeded()
                DispatchQueue.main.asyncAfter(deadline: .now() + 1) {
                    self.dismissAnimation(self.duration)
                }
            }
        }
    }


    private func dismissAnimation(_ duration : Double){
        DispatchQueue.main.asyncAfter(deadline: .now() + duration - 0.5) {

            self.viewTopAnchor?.constant = -150
            UIView.animate(withDuration: 1) {
                self.layoutIfNeeded()
                DispatchQueue.main.asyncAfter(deadline: .now() + 1) {
                    self.completion?()
                    self.removeFromSuperview()
                }
            }
        }
    }

    public override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
        print("touchBegan") // not called
        let touch = touches.first
    }

    public override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
        print("touchBegan") // not called
        self.completion?()
        self.btn?.removeTarget(self, action: #selector(dismissButtonClick), for: .touchUpInside)
        self.removeFromSuperview()
    }

    @objc
    func dismiss(){
        print("dismiss") // not called
        self.completion?()
        self.removeFromSuperview()
    }
    @IBAction func dismissButtonClick(_ sender: Any) {
        print("dismissButtonClick") // not called
        self.completion?()
        self.removeFromSuperview()
    }

}

---

我用一个按钮创建了一个自定义视图，并编写了一个在单击按钮时调用的方法。请检查一下，对你的情况可能会有帮助。
https://github.com/bhoomik/Custom_View_Demo 
自定义视图代码
//
//斯威夫特
//临时工
//
//Jaimin Modi于20年2月19日创建。
//版权所有©2020 Jaimin Modi。版权所有。
//
导入UIKit
//
//斯威夫特
//临时工
//
//
导入UIKit
类CustomView:UIView{
static name=“CustomView”
@IBOutlet弱var viewTopAnchor:NSLayoutConstraint？
@IBOUTLE弱var btn:UIButton？
var完成：（（）->无效）？
var parentView:UIViewController！
重写初始化（帧：CGRect）{
super.init（frame:frame）
}
必需的初始化？（编码器aDecoder:NSCoder）{
super.init（编码者：aDecoder）
}
公共静态函数getInstance（vc:UIViewController，UCompletion:（（）->Void）？）->UIView{
让view=Bundle.main.loadNibNamed（CustomView.name，所有者：self，选项：nil）？。首先是！CustomView
view.parentView=vc
view.completion=完成
//view.frame=CGRect（x:0，y:0，宽度：UIScreen.main.bounds.size.width，高度：120）
view.initUI（）
返回视图
}
func initUI（）{
//让tapGestureRecognizer=UITapGestureRecognizer（目标：自我，操作：#选择器（CustomView.Dislose））
//mainView.addGestureRecognizer（tapGestureRecognizer）
//btn？.addTarget（self，action:#选择器（CustomView.disclose），for:.touchUpInside）
parentView.view.addSubview（自）
self.translatesAutoResizengMaskintoConstraints=false
//self.leadingAnchor.constraint（equalTo:parentView.view.leadingAnchor，常量：0）。isActive=true
//self.trailingAnchor.constraint（equalTo:parentView.view.trailingAnchor，常量：0）。isActive=true
//viewTopAnchor？常数=-150
//viewTopAnchor？常数=300
//viewTopAnchor？.isActive=true
let guide=self.parentView.view.safeAreaLayoutGuide
NSLayoutConstraint.activate(
[self.leftAnchor.constraint（equalTo:self.parentView.view.leftAnchor），
自高度锚定约束（等恒量：50），
self.rightAnchor.constraint（等式：self.parentView.view.rightAnchor），
//segmentedControl！.topAnchor.constraint（等式：view.topAnchor，常量：80）]
self.topAnchor.constraint（等式：guide.topAnchor，常量：0）]
)
setNeedsDisplay（）
layoutIfNeeded（）
/*DispatchQueue.main.asyncAfter（截止日期：.now（）+0.5）{
self.mainView.ishiden=false
self.showAnimation（）
}*/
}
@iAction func dismissButtonClick（\发送方：任意）{
打印（“dismissButtonClick”）//未调用
//自我完成？（）
//self.removeFromSuperview（）
}
/*
//仅当执行自定义绘图时才重写绘图（）。
//空实现会对动画期间的性能产生不利影响。
重写函数绘图（rect:CGRect）{
//绘图代码
}
*/
}
UIView控制器代码
:
导入UIKit
扩展UIView{
类func fromNib（）->T{
返回捆绑包（用于：T.self）。loadNibNamed（字符串（描述：T.self），所有者：nil，选项：nil）！[0]为！T
}
}
类ViewController:UIViewController{
@IBVAR viewNav:CustomView！
var完成：（（）->无效）？
重写func viewDidLoad（）{
super.viewDidLoad（）
/*viewNav=UIView.fromNib（）
viewNav.frame=CGRect（x:0，y:0，宽度：self.view.frame.size.width，高度：viewNav.frame.size.height）
self.view.addSubview（视图导航）*/
getInstance（self，completion）
//加载视图后执行任何其他设置。
}
/*
//标记：-导航
//在基于故事板的应用程序中，您通常需要在导航之前做一些准备
覆盖功能准备（对于segue:UIStoryboardSegue，发送方：有吗？）{
//使用segue.destination获取新的视图控制器。
//将选定对象传递给新的视图控制器。
}
*/
}
[1]: https://github.com/bhoomik/Custom_View_Demo

请检查您在Xib中的视图层次结构，并确保您的按钮位于所有视图的顶部。@shraddha11“是”按钮位于所有视图的顶部…确定。您能否展示或解释一下您是如何将按钮连接到操作的？您使用哪个事件连接？@shraddha11谢谢您的帮助！我编辑了这篇文章。@Sean你使用NavigationBar吗？@Sean我试图根据我的代码修改我的代码。但我并没有得到任何意见，在家长根据您的约束，因为我并没有完整的代码。所以，我改变了约束条件。请检查可能对您有帮助

CustomView.getInstance(view, completion)

    I have created one custom view with one button and wrote method which is called on button click. Please check it out it might be helpful in your case.

https://github.com/bhoomik/Custom_View_Demo 

    Custom View Code


    //
    //  CustomView.swift
    //  Temp
    //
    //  Created by Jaimin Modi on 19/02/20.
    //  Copyright © 2020 Jaimin Modi. All rights reserved.
    //

        import UIKit

    //
//  CustomView.swift
//  Temp
//
//

import UIKit

class CustomView: UIView {


    static let xibName = "CustomView"

    @IBOutlet weak var viewTopAnchor: NSLayoutConstraint?
    @IBOutlet weak var btn: UIButton?
    var completion: (() -> Void)?

    var parentView : UIViewController!

    override init(frame: CGRect) {
        super.init(frame: frame)
    }

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
    }

    public static func getInstance(_ vc : UIViewController, _ completion : (() -> Void)? ) -> UIView {

        let view = Bundle.main.loadNibNamed(CustomView.xibName, owner: self, options: nil)?.first as! CustomView
        view.parentView = vc
        view.completion = completion
       // view.frame = CGRect(x: 0, y: 0, width: UIScreen.main.bounds.size.width, height: 120)
        view.initUI()

        return view
    }


    func initUI() {

      //  let tapGestureRecognizer = UITapGestureRecognizer(target: self, action:#selector(CustomView.dismiss))
       // mainView.addGestureRecognizer(tapGestureRecognizer)

        //btn?.addTarget(self, action: #selector(CustomView.dismiss), for: .touchUpInside)


        parentView.view.addSubview(self)

        self.translatesAutoresizingMaskIntoConstraints = false

       // self.leadingAnchor.constraint(equalTo: parentView.view.leadingAnchor, constant: 0).isActive = true
      //  self.trailingAnchor.constraint(equalTo: parentView.view.trailingAnchor, constant: 0).isActive = true
     //   viewTopAnchor?.constant = -150

     //   viewTopAnchor?.constant = 300
      //  viewTopAnchor?.isActive = true



        let guide = self.parentView.view.safeAreaLayoutGuide

        NSLayoutConstraint.activate(
            [self.leftAnchor.constraint(equalTo: self.parentView.view.leftAnchor),
             self.heightAnchor.constraint(equalToConstant: 50),
             self.rightAnchor.constraint(equalTo: self.parentView.view.rightAnchor),
             // segmentedControl!.topAnchor.constraint(equalTo: view.topAnchor, constant: 80)]
                self.topAnchor.constraint(equalTo: guide.topAnchor, constant: 0)]


        )

        setNeedsDisplay()
        layoutIfNeeded()

       /* DispatchQueue.main.asyncAfter(deadline: .now() + 0.5 ) {
            self.mainView.isHidden = false
            self.showAnimation()
        }*/

    }

    @IBAction func dismissButtonClick(_ sender: Any) {
        print("dismissButtonClick") // not called
       // self.completion?()
       // self.removeFromSuperview()
    }

    /*
    // Only override draw() if you perform custom drawing.
    // An empty implementation adversely affects performance during animation.
    override func draw(_ rect: CGRect) {
        // Drawing code
    }
    */

}

    UIView Controller code
    :


        import UIKit


        extension UIView {
            class func fromNib<T: UIView>() -> T {
                return Bundle(for: T.self).loadNibNamed(String(describing: T.self), owner: nil, options: nil)![0] as! T
            }
        }

class ViewController: UIViewController {


    @IBOutlet weak var viewNav :  CustomView!

    var completion: (() -> Void)?


    override func viewDidLoad() {
        super.viewDidLoad()


        /*viewNav  = UIView.fromNib()
        viewNav.frame = CGRect(x: 0, y: 0, width: self.view.frame.size.width, height: viewNav.frame.size.height)

        self.view.addSubview(viewNav)*/


        CustomView.getInstance(self, completion)


        // Do any additional setup after loading the view.
    }




    /*
    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        // Get the new view controller using segue.destination.
        // Pass the selected object to the new view controller.
    }
    */

}

  [1]: https://github.com/bhoomik/Custom_View_Demo