Ios 我能'；t与我的CollectionView单元格交互

我正在尝试与CollectionView中的细胞进行交互，但我无法让任何东西正常工作

起初，我只是想通过点击单元格将一些内容打印到日志中。那没用。为此，我声明了一个“didSelectItemAt”函数

接下来，我在单元格中添加了一个按钮，并添加了一个iAction以将某些内容打印到日志中，但这也不起作用

我尝试将

collectionview.isUserInteractionEnabled=true

添加到viewDidLoad（）方法中，但没有成功。我还检查了故事板

我通过执行以下操作添加数据源和委托

collectionview.delegate = self
collectionview.dataSource = self

我还尝试在viewDidLoad中添加UITapGestureRecognitor，但这只会使我的应用程序在加载视图时崩溃

我可以与其他CollectionView交互，但无法与此CollectionView交互。我不确定滚动是否有效，因为到目前为止，我在这个集合视图中只加载了一个单元格

有人对我能做什么或如何正确实现UITapGestureRecognitor有什么想法吗

以下是CollectionView的完整代码：

import UIKit
import Firebase
import SwiftKeychainWrapper
import SwiftUI
import FirebaseUI


class UserViewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource {


    @IBOutlet weak var collectionview: UICollectionView!

    var user = [User]()
    var following = [String]()

    var userStorage: StorageReference!
    var ref : DatabaseReference!

    override func viewDidLoad() {
        super.viewDidLoad()
        collectionview.delegate = self
        collectionview.dataSource = self

        collectionview.isUserInteractionEnabled = true
//        self.collectionView.register(UICollectionViewCell.self, forCellWithReuseIdentifier: "UserCell")

        retrieveUsers()
//        let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(UIInputViewController.dismissKeyboard))
//        tap.cancelsTouchesInView = false
//        collectionview.addGestureRecognizer(tap)
    }

    @IBAction func buttonPress(_sender: Any){
        print("fuck you")
    }


    func retrieveUsers() {
        let uid = Auth.auth().currentUser!.uid
        let ref = Database.database().reference().child("posts")
        let uids = Database.database().reference().child("users")
        uids.observeSingleEvent(of:.value, with:{
            (snapshot) in
                    let users = snapshot.value as! [String : NSDictionary]
                        //self.user.removeAll()
                        for (_, value) in users {

                            if let uid = value["uid"] as? String {
                                if uid != Auth.auth().currentUser!.uid {
                                    let userToShow = User()
                                    if let username = value["username"] as? String, let imagePath = value["urlToImage"] as? String{

                                        userToShow.username = username
                                        userToShow.imagePath = imagePath
                                        userToShow.userID = uid
                                        self.user.append(userToShow)
                                        print(userToShow)
                                    }
                                }
                            }
                        }
                        self.collectionview.reloadData()
                    })
                    //ref.removeAllObservers()
    }

    func numberOfSections(in collectionView: UICollectionView) -> Int {
        return 1
    }
    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
           return user.count
    }
    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {


        let cell = collectionview.dequeueReusableCell(withReuseIdentifier: "userCell", for: indexPath) as! UserCell



          cell.userImage.sd_setImage(with: URL(string: self.user[indexPath.row].imagePath))

           cell.nameLabel.text = self.user[indexPath.row].username
           cell.userID = self.user[indexPath.row].userID
//        let destinationVC = ProfileViewController()
//        destinationVC.sentUserID = user[indexPath.row].userID!

        // Let's assume that the segue name is called playerSegue
        // This will perform the segue and pre-load the variable for you to use
        //destinationVC.performSegue(withIdentifier: "toProfileFromSearch", sender: self)


//        cell.addButtonTapAction = {
//            // implement your logic here, e.g. call preformSegue()
//            self.performSegue(withIdentifier: "toProfileFromSearch", sender: self)
//        }
        //cell.userImage.downloadImage(from: self.user[indexPath.row].imagePath!)
        //checkFollowing(indexPath: indexPath)


        return cell
    }

    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {

        print("hello world")
//        let VC1 = self.storyboard!.instantiateViewController(withIdentifier: "ProfileViewController") as! ProfileViewController
//        VC1.sentUserID = user[indexPath.row].userID
//        self.navigationController?.pushViewController(VC1, animated: true)
    }












    func checkFollowing(indexPath: IndexPath) {
        let uid = Auth.auth().currentUser!.uid
        let ref = Database.database().reference()

        ref.child("users").child(uid).child("following").queryOrderedByKey().observeSingleEvent(of: .value, with: { snapshot in

            if let following = snapshot.value as? [String : AnyObject] {
                for (_, value) in following {
                    if value as! String == self.user[indexPath.row].userID {
//                        self.tableview.cellForRow(at: indexPath)?.accessoryType = .checkmark
                    }
                }
            }
        })
        ref.removeAllObservers()

    }

    @IBAction func logOutPressed(_ sender: Any) {
        KeychainWrapper.standard.removeObject(forKey:"uid")

        do{
            try Auth.auth().signOut()
        } catch let signOutError as NSError{
            print("Error signing out: %@", signOutError)
        }
        dismiss(animated: true, completion: nil)
    }

}


extension UIImageView {

    func downloadImage(from imgURL: String!) {
        let url = URLRequest(url: URL(string: imgURL)!)

        let task = URLSession.shared.dataTask(with: url) {
            (data, response, error) in

            if error != nil {
                print(error!)
                return
            }

            DispatchQueue.main.async {
                self.image = UIImage(data: data!)
            }

        }

        task.resume()
    }
}

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什么是流程布局？我需要添加什么才能符合UICollectionViewDelegateFlowLayout？是否检查了集合视图选择？如果选择了单个选项，请检查您的内容（单元格）UI任意按钮，Uiview不与它们重叠。@Sukhwindsingh导航栏与单元格稍微重叠。这会有问题吗？@SukhwinderSingh我添加了第二个用户，该用户与搜索栏完全不重叠，并且didSelectItemAt函数不起作用。如何在像许多流行应用一样的单元中获得用户交互？collectionView.AllowSelection=true