代表式清洁VIP

Question

我是新来的清洁VIP架构，我正在努力与它的切入点。

(我只放了一点代码)

ViewController

protocol Delegate: class { 
   func execute()
}

class TitlesViewController:UIViewController {
   weak var delegate: Delegate?

   func viewDidLoad() {
         super.viewDidLoad()
         delegate.execute()
      }

}

配置器

class TitlesConfigurator {

static func configureModule(viewController: TitlesViewController) {
    let interactor = Interaction()
    
    viewController.delegate = interactor
    
   }
}

在AppDelegate中

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    
    let titlesViewController = TitlesViewController()
    let navigationController = UINavigationController(rootViewController: titlesViewController)
    TitlesConfigurator.configureModule(viewController: titlesViewController)
    
    window = UIWindow()
    window?.rootViewController = navigationController
    window?.makeKeyAndVisible()
    
    return true
}

现在，我面临的问题是，interactor在TilesConfigurator之外没有引用，delegate是weak，这意味着它的总arc是0。它导致了delegate = nil内部的viewDidLoad

如何在架构中改进或解决此问题。

P.S:我不认为在ViewController内部大力引用代表是不好的做法

Answer 1

这里的委托不应该是weak

var delegate: Delegate?

因为有一部分是weak，也就是let interactor = Interaction()，所以不会发生保留周期