Question

我有这样的事情：

class SocketManager {
    static let instance: SocketManager
    var socket = Socket()
}

extension SocketManager: SocketDelegate {
    func someFunc() {
    }
}

Socket是一个拥有protocol和delegate

的类

protocol SocketDelegate: class {
    func someFunc()
}

class Socket {
    weak var delegate: SocketDelegate?
}

如何将socket.delegate设为SocketManager.instance？

Answer 1

您设置另一个类以符合SocketDelegate协议并将委托设置为该类。执行此操作后，SocketDelegate可以调用委托方法，这些方法将传递给您将委托设置为的类。

你的课程将是这样的：

class SocketManager {
    static let instance: SocketManager
    var socket = Socket()
    weak var delegate: SocketDelegate?
}

extension SocketManager: SocketDelegate {
    func someFunc() {
    }
}

protocol SocketDelegate: class {
    func someFunc()
}

class Socket: SocketDelegate { // so it conforms to the delegate
    SocketManager.instance.delegate = self
}

Swift - 为singleton设置委托

1 个答案: