ios - 如何使用台风快速注入(inject)委托(delegate)？

Question

我试图使用台风在我的 View Controller 中注入(inject)“worker”类型。我的“ worker ”需要一个委托(delegate)，以便在工作完成后调用此方法。我需要将我的 View Controller 设置为注入(inject)的工作类的委托(delegate)。换句话说，循环依赖。

更新问题来源:

//my typhoon assembly class
import Typhoon
class Assembly : TyphoonAssembly {

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

            definition.injectProperty("worker", with: self.foo())
            definition.scope = TyphoonScope.Singleton
        }
    }


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

            definition.injectProperty("delegate", with: self.viewController())
        }
    }

}

Foo 是完成工作的地方，它实现了 WorkHandler 协议(protocol)并且有一个 SomeProtocol 类型的委托(delegate)在工作完成时调用:

import Foundation

@objc
protocol SomeProtocol: class {
    optional func hasFinishedWork(value: Bool)
}

protocol WorkHandler : class {
    func doSomething()
}



class Foo: WorkHandler{

    //how will this get set?
    var delegate:SomeProtocol?

    func doSomething(){
        print("doing the work")
        delegate?.hasFinishedWork!(true)
    }
}

我的 ViewController 像这样符合 SomeProtocol:

import UIKit

class ViewController: UIViewController, SomeProtocol{

    var worker:WorkHandler?

    override func viewDidLoad() {
        super.viewDidLoad()

        worker?.doSomething();
    }

    @objc func hasFinishedWork(value: Bool){
        print("The work was all done")
    }
}

上面的代码在运行时出现如下错误:

2016-02-29 20:25:43.250 TestApp[30604:5316415] *** 由于未捕获的异常“NSInvalidArgumentException”而终止应用程序，原因:“需要 NSProxy 或 NSObject 的子类。”

有人能帮忙吗？

Answer 1

原来我必须让我的协议(protocol)继承自 NSObject:

@objc
protocol SomeProtocol: class {
    optional func hasFinishedWork(value: Bool)
}

@objc
protocol WorkHandler : class {
    func doSomething()
}




class Foo: NSObject, WorkHandler{

    //how will this get set?
    var delegate:SomeProtocol?

    @objc func doSomething(){
        print("doing the work")
        delegate?.hasFinishedWork!(true)
    }
}

现在它按预期工作了。