ios - 从使用 MessageKit 创建的 ChatViewController 推送其他 ViewController

Question

我使用 MessageKit 在我的 App 中创建 Chat。

在我以编程方式创建的ChatViewController中，我添加了rightBarButtonItem和用户图片。我想添加 func ，如果其他用户点击 rightBarButtonItem，它将在 UserProfileViewController 上重定向。

现在看起来像这样。用户图片专用蓝色带箭头。

现在我有这个代码:

class ChatsViewController: MessagesViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        maintainPositionOnKeyboardFrameChanged = true
        messageInputBar.sendButton.setImage(#imageLiteral(resourceName: "send"), for: .normal)
        messageInputBar.sendButton.title = nil

        messageInputBar.inputTextView.placeholder = NSLocalizedString("New message", comment: "Новое сообщение")

        messageInputBar.delegate = self
        messagesCollectionView.messagesDataSource = self
        messagesCollectionView.messagesLayoutDelegate = self
        messagesCollectionView.messagesDisplayDelegate = self
        messagesCollectionView.messageCellDelegate = self
    }

    private func loadChat(channel: Channel) {
        guard let id = channel.id else {
            navigationController?.popViewController(animated: true)
            return
        }

        reference = db.collection([FSCollections.chats, id, "thread"].joined(separator: "/"))

        messageListener = reference?.addSnapshotListener { querySnapshot, error in
            guard let snapshot = querySnapshot else {
                print("Error listening for channel updates: \(error?.localizedDescription ?? "No error")")
                return
            }

            if UserDefaults.standard.bool(forKey: UserDefaultsKeys.switcherIsClick) == true {
                self.navigationItem.title = self.channel?.recipientName ?? ""
            } else {
                self.navigationItem.title = self.channel?.name ?? ""
            }
            self.configurePhotoProfile()

            snapshot.documentChanges.forEach { change in
                self.handleDocumentChange(change)
            }
        }
    }

    func configurePhotoProfile() {
        let imageView = UIImageView()
        let widthConstraint = imageView.widthAnchor.constraint(equalToConstant: 34)
        let heightConstraint = imageView.heightAnchor.constraint(equalToConstant: 34)
        let tap = UITapGestureRecognizer(target: self, action: #selector(ChatsViewController.didTapImageButton(_:)))
        tap.numberOfTouchesRequired = 1
        heightConstraint.isActive = true
        widthConstraint.isActive = true
        imageView.kf.setImage(with: URL(string: channel?.recipientUrlImage ?? ""))
        imageView.backgroundColor = .clear
        imageView.layer.masksToBounds = true
        imageView.layer.cornerRadius = 17
        imageView.isUserInteractionEnabled = true
        imageView.addGestureRecognizer(tap)
        if UserDefaults.standard.integer(forKey: UserDefaultsKeys.selectedSegmentedControl) == 0 {
            self.navigationItem.rightBarButtonItem = UIBarButtonItem(customView: imageView)
        } else {
            self.navigationItem.rightBarButtonItem = nil
        }
    }

    @objc func didTapImageButton(_ sender: UIBarButtonItem) {

        if let detailPhotographerVC = storyboard?.instantiateViewController(withIdentifier: "detailPhotographerVC") as? DetailPhotographerViewController {
            detailPhotographerVC.id = channel?.recipientID ?? ""
            let backItem = UIBarButtonItem()
            backItem.title = ""
            self.navigationItem.backBarButtonItem = backItem
            self.navigationController?.pushViewController(detailPhotographerVC, animated: true)
        } else {
            print("error")
        }
    }
}

因此，如果用户点击用户图片，我会在func didTapImageButton的控制台中收到错误。

我不明白为什么会收到错误...在 detailPhotographerVC 上，我重定向了正确的 id 并且 detailPhotographerVC 不得接受任何数据除了 id 之外。

UPD。

我尝试在以下位置更新 func didTapImageButton 中的代码:

@objc func didTapImageButton(_ sender: UIBarButtonItem) {
    let detailPhotographerVC = storyboard!.instantiateViewController(withIdentifier: "detailPhotographerVC") as! DetailPhotographerViewController
    detailPhotographerVC.id = channel?.recipientID ?? ""
    let backItem = UIBarButtonItem()
    backItem.title = ""
    self.navigationItem.backBarButtonItem = backItem
    self.navigationController?.pushViewController(detailPhotographerVC, animated: true)
}

但再次出现错误，请检查屏幕截图。

Answer 1

以编程方式加载 vc

let detailPhotographerVC =  DetailPhotographerViewController()

来自 Storyboard

let detailPhotographerVC = storyboard!.instantiateViewController(withIdentifier: "detailPhotographerVC") as! DetailPhotographerViewController