Ios Swift 3:UrlProtocol无法调用完成的错误委托
作为标题,我正在尝试构建一个自定义url协议。 我找到了,并且完全遵循了提供的代码 然而,这位代表Ios Swift 3:UrlProtocol无法调用完成的错误委托,ios,macos,nsurlprotocol,url-protocol,custom-url-protocol,Ios,Macos,Nsurlprotocol,Url Protocol,Custom Url Protocol,作为标题,我正在尝试构建一个自定义url协议。 我找到了,并且完全遵循了提供的代码 然而,这位代表 func urlSession(_ session: URLSession, task: URLSessionTask, didCompleteWithError error: Error?) 永远不会触发或调用 此外,编译器提示一条警告消息说,它几乎符合URLSessionTaskDelegate的可选要求,编译器提供的快速修复方法是将其私有化 那么,我如何调用didpleteWitherRo
func urlSession(_ session: URLSession, task: URLSessionTask, didCompleteWithError error: Error?)
永远不会触发或调用
此外,编译器提示一条警告消息说,它几乎符合URLSessionTaskDelegate的可选要求,编译器提供的快速修复方法是将其私有化
那么,我如何调用didpleteWitherRor委托,代码是否遗漏了某些部分?或者这是一个已知的问题?请让我知道是否有任何解决方案或更好的自定义UrlProtocol Swift 3示例。提前谢谢
编辑1:
class CustomURLProtocol: URLProtocol, URLSessionDataDelegate, URLSessionTaskDelegate {
private var dataTask: URLSessionDataTask?
private var urlResponse: URLResponse?
private var receivedData: NSMutableData?
class var CustomHeaderSet: String {
return "CustomHeaderSet"
}
// MARK: NSURLProtocol
override class func canInit(with request: URLRequest) -> Bool {
if (URLProtocol.property(forKey: CustomURLProtocol.CustomHeaderSet, in: request as URLRequest) != nil) {
return false
}
return true
}
override class func canonicalRequest(for request: URLRequest) -> URLRequest {
return request
}
override func startLoading() {
let mutableRequest = NSMutableURLRequest.init(url: self.request.url!, cachePolicy: NSURLRequest.CachePolicy.useProtocolCachePolicy, timeoutInterval: 240.0)//self.request as! NSMutableURLRequest
//Add User Agent
var userAgentValueString = "myApp"
mutableRequest.setValue(userAgentValueString, forHTTPHeaderField: "User-Agent")
print(mutableRequest.allHTTPHeaderFields ?? "")
URLProtocol.setProperty("true", forKey: CustomURLProtocol.CustomHeaderSet, in: mutableRequest)
let defaultConfigObj = URLSessionConfiguration.default
let defaultSession = URLSession(configuration: defaultConfigObj, delegate: self, delegateQueue: nil)
self.dataTask = defaultSession.dataTask(with: mutableRequest as URLRequest)
self.dataTask!.resume()
print("loaded")
}
override func stopLoading() {
self.dataTask?.cancel()
self.dataTask = nil
self.receivedData = nil
self.urlResponse = nil
}
// MARK: NSURLSessionDataDelegate
func urlSession(_ session: URLSession, dataTask: URLSessionDataTask,
didReceive response: URLResponse,
completionHandler: @escaping (URLSession.ResponseDisposition) -> Void) {
self.client?.urlProtocol(self, didReceive: response, cacheStoragePolicy: .notAllowed)
self.urlResponse = response
self.receivedData = NSMutableData()
completionHandler(.allow)
}
func urlSession(_ session: URLSession, dataTask: URLSessionDataTask, didReceive data: Data) {
self.client?.urlProtocol(self, didLoad: data as Data)
self.receivedData?.append(data as Data)
}
// MARK: NSURLSessionTaskDelegate
func urlSession(_ session: URLSession, task: URLSessionTask, didCompleteWithError error: Error?) {
print("completed")
if error != nil { //&& error.code != NSURLErrorCancelled {
self.client?.urlProtocol(self, didFailWithError: error! as! Swift.Error)
} else {
//saveCachedResponse()
self.client?.urlProtocolDidFinishLoading(self)
}
}
}
正如在那里发布的代码,这些是我所做的更改,调用了“loaded”,但从未调用“completed”
编辑2:
编译器提示的警告消息
您能否显示添加此委托方法的位置。你也为
URLSessionTaskDelegate
设置了委托吗?我在appdelegate的didfishLaunching中添加了它,作为URLProtocol.registerClass(CustomURLProtocol.self)
我编辑了帖子,并在我使用的代码中添加了尝试使用urlsessiondownloaddelegate我也面临着同样的问题!任何解决方案都将不胜感激。