swift - 使用未解析的标识符 "Singleton."

Question

我正在编写一个涉及单例的应用程序，我正在尝试从我的应用程序中的其他文件访问单例文件。这是我的代码:

单例.swift

class Singleton {
static let sharedInstance = Singleton()

private init() {
    // Private initialization to ensure just one instance is created.
}

}

OutofQuestionsVC.swift

class OutofQuestionsVC: UIViewController {
let mysingleton = Singleton.sharedInstance


override func viewDidLoad() {
    super.viewDidLoad()
   mysingleton.resetQuestions()

    // Do any additional setup after loading the view.
}

}

Answer 1

github上的Design-Patterns-In-Swift项目有一个例子

https://github.com/ochococo/Design-Patterns-In-Swift/blob/master/source/creational/singleton.swift

例子:

class DeathStarSuperlaser {
    static let sharedInstance = DeathStarSuperlaser()

    private init() {
        // Private initialization to ensure just one instance is created.
    }
}

用法:

 let laser = DeathStarSuperlaser.sharedInstance