ios - Swift 无法使用类型为 '(url: URL) 的参数列表调用类型为 'WebSocket' 的初始化程序

Question

我在 swift 中有以下代码用于 web-socket 通信，但是当我构建代码时出现错误。

代码：

import Foundation
import Starscream

class StarscreamWebSocket: WebSocketProvider {

    var delegate: WebSocketProviderDelegate?
    private let socket: WebSocket
    
    init(url: URL) {
        self.socket = WebSocket(url: url)
        self.socket.delegate = self
    }
    
    func connect() {
        self.socket.connect()
    }
    
    func send(data: Data) {
        self.socket.write(data: data)
    }
}

错误：

Cannot invoke initializer for type 'WebSocket' with an argument list of type '(url: URL)'

可能是什么问题呢。

Answer 1

该框架的WebSocket类没有采用单个URL参数的初始化程序。它有两个初始化器：

public init(request: URLRequest, engine: Engine)
public convenience init(request: URLRequest, certPinner: CertificatePinning? = FoundationSecurity(), compressionHandler: CompressionHandler? = nil, useCustomEngine: Bool = true)

您似乎想使用第二个。只需创建一个URLRequest与您的URL

let request = URLRequest(url: url)
self.socket = WebSocket(request: request )