Ios UIAPRecognizer是否未以编程方式在UIView上工作？

我很难理解为什么当我的UIView被点击时，我没有调用我的函数。我的UIView在我的setUpNavBar（）中我做错了什么？我的viewDidLoad是一个tableView，但我在setUpNavbar中有一个子视图，其中包含我的标题和图像。我首先通过添加titleView.isUserInteractionEnabled=true来解决问题，但事实并非如此

import UIKit
import Firebase

class MessageController: UITableViewController {

    override func viewDidLoad() {
        super.viewDidLoad()



        var ref: DatabaseReference!
        ref = Database.database().reference()


        let userID = Auth.auth().currentUser?.uid
        ref.child("users/profile").child(userID!).observeSingleEvent(of: .value, with: { (snapshot) in

            print(snapshot)
            if let dictionary = snapshot.value as? [String: AnyObject] {
//            self.navigationItem.title = dictionary["username"] as? String

                let user = User()
                user.setValuesForKeys(dictionary)
                self.setUpNavBar(user: user)

            }
        }, withCancel: nil)

    }

    func setUpNavBar(user: User) {
        let titleView = UIView()

        titleView.frame = CGRect(x: 0, y: 0, width: 100, height: 40)
        titleView.backgroundColor = UIColor.red

        let containerView = UIView()
        containerView.translatesAutoresizingMaskIntoConstraints = false
        titleView.addSubview(containerView)

        let profileImageView = UIImageView()
        profileImageView.translatesAutoresizingMaskIntoConstraints = false
        profileImageView.contentMode = .scaleAspectFill
        profileImageView.layer.cornerRadius = 20
        profileImageView.clipsToBounds = true
        if let profileImageUrl = user.photoURL {
            profileImageView.loadImageUsingCacheWithURLString(urlString: profileImageUrl)
        }
        containerView.addSubview(profileImageView)

        profileImageView.leftAnchor.constraint(equalTo: containerView.leftAnchor).isActive = true
        profileImageView.centerYAnchor.constraint(equalTo: containerView.centerYAnchor).isActive = true
        profileImageView.widthAnchor.constraint(equalToConstant: 40).isActive = true
        profileImageView.heightAnchor.constraint(equalToConstant: 40).isActive = true


        let nameLabel = UILabel()

        containerView.addSubview(nameLabel)
        nameLabel.text = user.username
        nameLabel.translatesAutoresizingMaskIntoConstraints = false
        nameLabel.leftAnchor.constraint(equalTo: profileImageView.rightAnchor, constant: 8).isActive = true
        nameLabel.centerYAnchor.constraint(equalTo: profileImageView.centerYAnchor).isActive = true

        nameLabel.rightAnchor.constraint(equalTo: containerView.rightAnchor).isActive = true
        nameLabel.heightAnchor.constraint(equalTo: profileImageView.heightAnchor).isActive = true

        containerView.centerXAnchor.constraint(equalTo: titleView.centerXAnchor).isActive = true
        containerView.centerYAnchor.constraint(equalTo: titleView.centerYAnchor).isActive = true

        self.navigationItem.titleView = titleView

        titleView.isUserInteractionEnabled = true

        let mytapGestureRecognizer: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(showChatController))
        mytapGestureRecognizer.numberOfTapsRequired = 1
        titleView.addGestureRecognizer(mytapGestureRecognizer)
    }

    @objc func showChatController() {
        print("clicked")
//        let chatLogController = ChatLogController()
//        navigationController?.pushViewController(chatLogController, animated: true)

    }

---

您的

profileImageView

正在“吃掉”触摸。尝试禁用其用户交互。它应该允许触摸传递到其父级，

containerView

profileImageView.isUserInteractionEnabled = false

---

您的

profileImageView

正在“吃掉”触摸。尝试禁用其用户交互。它应该允许触摸传递到其父级，

containerView

profileImageView.isUserInteractionEnabled = false

---

看起来您缺少标题视图上的高度和宽度约束，因此其大小最终为（0，0），因此没有可触摸区域

尝试设置以下约束，而不是设置框架特性：

    titleView.heightAnchor.constraint(equalToConstant: 40).isActive = true
    titleView.widthAnchor.constraint(equalToConstant: 100).isActive = true

---

看起来您缺少标题视图上的高度和宽度约束，因此其大小最终为（0，0），因此没有可触摸区域

尝试设置以下约束，而不是设置框架特性：

    titleView.heightAnchor.constraint(equalToConstant: 40).isActive = true
    titleView.widthAnchor.constraint(equalToConstant: 100).isActive = true

---

您是否尝试过设置self.navigationItem.isUserInteractionEnabled=true？这将转到哪里？在

titleView.isUserInteractionEnabled=true

之前，我收到一个错误。类型为“UINavigation”的值没有成员“isUserInteractionEnabled”您是否尝试过设置

self.navigationItem.isUserInteractionEnabled=true

？这将转到哪里？在

titleView.isUserInteractionEnabled=true

之前，我收到一个错误。“UINavigation”类型的值没有成员“isUserInteractionEnabled”