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我有这个 TatodexController 来处理我的 Collection View 代码。它从 API 调用中获取数据并将其保存在 pokemon var 中。这个 var 使用 Pokemon 结构体进行解码，该结构体包含每个 pokemon 的所有属性（名称、身高、能力等）。

在我的 CollectionView 上，我可以显示与戳相关的图像、名称和更多信息，但我添加了一个以这种方式工作的功能：

  • 当我长按任何口袋妖怪单元格时，它会显示一个信息视图，它应该显示一大块口袋妖怪信息，但它没有从我的 TatodexController 获取更新的数据。

我的 TatodexController 的相关代码如下所示：

class TatodexController: UICollectionViewController, InfoViewDelegate {

var pokemon: Pokemon?
var pokemons = [Pokemon]()
let service = Service()
    . . .

let infoView: InfoView = {
    let view = InfoView()
    view.layer.cornerRadius = 5
    return view
}()

override func viewDidLoad() {
    super.viewDidLoad()
    fetchPokemons()
}

. . .

@objc func handleDismissal() {
    dismissInfoView(pokemon: nil)
}
}

我处理解析和一些 InfoView 配置的扩展是这个：

extension TatodexController {

. . .

func dismissInfoView(pokemon: Pokemon?) {
    UIView.animate(withDuration: 0.5, animations: {
        self.visualEffectView.alpha = 0
        self.infoView.alpha = 0
        self.infoView.transform = CGAffineTransform(scaleX: 1.3, y: 1.3)
    }) { (_) in
        self.infoView.removeFromSuperview()
        self.navigationItem.rightBarButtonItem?.isEnabled = true
        guard let pokemon = pokemon else { return }
        self.showInfoController(withPoke: pokemon)
    }
}

func fetchPokemons() {
    service.fetchPokes { (result) in
        DispatchQueue.main.async {
            
            switch result {
            case .success(let poke):
                self.pokemon = poke
                self.pokemons.append(poke)
                self.collectionView.reloadData()
                
                self.pokemons.sort { (poke1, poke2) -> Bool in
                    return poke1.name! < poke2.name!
                    
                }
            case .failure(let error):
                
                let alert = UIAlertController(title: "Error", message: error.localizedDescription, preferredStyle: .alert)
                 alert.addAction(UIAlertAction(title: "Dismiss", style: .default, handler: nil))
                 self.show(alert, sender: nil)
            }
            
        }
    }
}
}

配置我的 InfoViewDelegate 的扩展是：

    extension TatodexController: TatodexCellDelegate {
    
    func presentInfoView(withPokemon pokemon: Pokemon) {

        configureSearchBar(showSearch: false)
        navigationItem.rightBarButtonItem?.isEnabled = false

        view.addSubview(infoView)
        infoView.configureViewComponents()
        infoView.delegate = self
        infoView.pokemon = self.pokemon
        configureInfoView()
    }
    
    func configureInfoView() {
        
        infoView.anchor(top: nil, left: nil, bottom: nil, right: nil, paddingTop: 0, paddingLeft: 0, paddingBottom: 0, paddingRight: 0, width: view.frame.width - 64, height: 480)
        infoView.layer.cornerRadius = view.frame.width / 6
        infoView.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
        infoView.centerYAnchor.constraint(equalTo: view.centerYAnchor, constant: -40).isActive = true
        
        infoView.transform = CGAffineTransform(scaleX: 1.3, y: 1.3)
        infoView.alpha = 0
        
        UIView.animate(withDuration: 0.3) {
            self.visualEffectView.alpha = 1
            self.infoView.alpha = 1
            self.infoView.transform = .identity
        }
        
    }
}

我的 InfoView 类的相关代码是这样的：

    protocol InfoViewDelegate {
    func dismissInfoView(pokemon: Pokemon?)
}

class InfoView: UIView {
    
    var delegate: InfoViewDelegate?
    var pokemon: Pokemon? {
        didSet {
                guard let pokemon   = self.pokemon,
                      let type      = pokemon.types,
                      let typeName  = type[0].type?.name,
                      let defense   = pokemon.defense,
                      let attack    = pokemon.attack,
                      let id        = pokemon.id,
                      let height    = pokemon.height,
                      let weight    = pokemon.weight,
                      let imageUrl  = pokemon.sprites?.front else { return }
                    
                if id == pokemon.id {
                    imageView.kf.setImage(with: URL(string: imageUrl))
                }

                nameLabel.text = pokemon.name?.capitalized
                
                configureLabel(label: typeLabel,      title: "Type",        details: "\(typeName)")
                configureLabel(label: defenseLabel,   title: "Defense",     details: "\(defense)")
                configureLabel(label: attackLabel,    title: "Base Attack", details: "\(attack)")
                configureLabel(label: heightLabel,    title: "Height",      details: "\(height)")
                configureLabel(label: weightLabel,    title: "Weight",      details: "\(weight)")
                configureLabel(label: pokedexIdLabel, title: "Pokedex Id",  details: "\(id)")
        }
    }
    
    let skillLabel: UILabel = {
        let label = UILabel()
        return label
    }()
    
    let imageView: UIImageView = {
        let iv = UIImageView()
        iv.contentMode = .scaleAspectFill
        return iv
    }()
    
    lazy var nameContainerView: UIView = {
        let view = UIView()
        view.backgroundColor = Colors.softRed
        view.addSubview(nameLabel)
        view.layer.cornerRadius = 5
        nameLabel.center(inView: view)
        return view
    }()
    
    let nameLabel: UILabel = {
        let label = UILabel()
        label.textColor = .white
        label.font = UIFont.systemFont(ofSize: 24, weight: .thin)
        label.text = "Lucario"
        return label
    }()
    
    . . .

    override init(frame: CGRect) {
        super.init(frame: frame)
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    @objc func handleViewMoreInfo() {
        guard let pokemon = self.pokemon else { return }
        delegate?.dismissInfoView(pokemon: pokemon)
    }

    . . .
}

当然，在最后一段代码中，我没有获取数据。我认为这是因为我没有将我的 TatodexController 的口袋妖怪信息与我的 InfoView 连接起来，但我不知道该怎么做。例如，当我长按任何 pokemon 单元格并显示 InfoView 时，它会显示“Lucario”（这是我的默认值），而不是实际的 pokemon 名称。

我将非常感谢任何帮助或建议。如果有人需要查看另一块代码，我很乐意更新这篇文章。

编辑 1：TatodexCell 的 handleLongPress 函数

    @objc func handleLongPress(sender: UILongPressGestureRecognizer) {
    if sender.state == .began {
        guard let poke = self.pokemon else { return }
        delegate?.presentInfoView(withPokemon: poke)
    }
}
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