台风依赖注入和 Swift 3：Appdelegate 不是 AnyObject

Question

此代码适用于 Swift 2.3 中的 Typhoon 依赖注入库 (Obj-C)，但不适用于 Swift 3:

AppDelegate:

class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?
    var rootViewController: RootViewController?

    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        // Override point for customization after application launch.

        self.window = UIWindow(frame: UIScreen.main.bounds)
        self.window?.rootViewController = self.rootViewController
        self.window?.makeKeyAndVisible()

        return true
    }
    ...
}

应用程序集：

    public class ApplicationAssembly: TyphoonAssembly {

        public dynamic func config() -> AnyObject {
            return TyphoonDefinition.withConfigName("Configuration.plist")
        }

        public dynamic func appDelegate() -> AnyObject {
            return TyphoonDefinition.withClass(AppDelegate.self) {
                (definition) in

                definition!.injectProperty(#selector(ApplicationAssembly.rootViewController), with: self.rootViewController())
            }
        }
 ...
}

但是，对于预期 return 'AnyObject' 的任何 Swift 3 文件，ApplicationAssembly 中会显示以下错误： “没有 'withClass' 候选人产生预期的上下文结果类型 'AnyObject'

可能有人了解 Obj-c Typhoon 代码库与 Swift 3 的不兼容性吗？

Screen capture of error line

Answer 1

您可能希望将 return 类型从 AnyObject 切换为 Any。

withClass函数return是Objective-C中的一个id类型， see the source code:

+ (id)withClass:(Class)clazz block:(TyphoonBlockDefinitionInitializerBlock)block;

id 类型在 Swift 2 中被映射到 AnyObject，但在 Swift 3 中它被映射到 Any 以增加灵活性。 You can read more about this change here.

台风依赖注入和 Swift 3：Appdelegate 不是 AnyObject

Typhoon Dependency Injection and Swift 3: Appdelegate isn't AnyObject

migration

objective-c

ios

typhoon

swift