Swift3:类型“NSObject”不符合协议“URLAuthenticationChallengeSender”
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【中文标题】Swift3:类型“NSObject”不符合协议“URLAuthenticationChallengeSender”【英文标题】:Swift3: Type 'NSObject' does not conform to protocol 'URLAuthenticationChallengeSender' 【发布时间】:2016-09-22 10:24:12 【问题描述】:在 Swift3 中 'NSURLAuthenticationChallengeSender' 更改为 'URLAuthenticationChallengeSender' 所以在委托方法中也从 NSURlAuthentication 更改为 URLAuthentication(Auto Xcode 编辑)
我很困惑我是否仍然缺少任何委托方法,但包括所有委托方法以下仍然显示错误如上。
如果有人遇到同样的问题,请帮忙!!!
Swift3
class GeneralFunctions: NSObject,NSURLConnectionDataDelegate,URLAuthenticationChallengeSender
委托方法
func connection(connection: NSURLConnection, willSendRequestForAuthenticationChallenge challenge: URLAuthenticationChallenge)
func connection(connection: NSURLConnection, didReceiveResponse:URLResponse)
func connection(connection: NSURLConnection, didReceiveData data: NSData)
func connection(connection: NSURLConnection, didFailWithError error: NSError)
print("Connection Failed")
func connection(connection: NSURLConnection, didReceiveAuthenticationChallenge challenge: URLAuthenticationChallenge)
//sanju swift3 160922-- re verify
// let myCredential = URLCredential(forTrust: challenge.protectionSpace.serverTrust!)
// challenge.sender!.useCredential(myCredential, forAuthenticationChallenge: challenge)
func connection(connection: NSURLConnection, canAuthenticateAgainstProtectionSpace protectionSpace: URLProtectionSpace) -> Bool
return true
func URLSession(session: URLSession, didReceiveChallenge challenge: URLAuthenticationChallenge, completionHandler: (URLSession.AuthChallengeDisposition, URLCredential) -> Void)
let protectionSpace = challenge.protectionSpace
let theSender = challenge.sender
if protectionSpace.authenticationMethod == NSURLAuthenticationMethodServerTrust
if let theTrust = protectionSpace.serverTrust
let theCredential = URLCredential(trust: theTrust)
theSender?.use(theCredential, for: challenge)
return
theSender?.performDefaultHandling!(for: challenge)
return
【问题讨论】:
确保你已经为你的委托方法实现了正确的参数。有些可能会从 error:NSError 变为例如错误:错误? 是的,在 swift3 中有很多这样的变化!!!!再次检查@JVS 它现在是否有可能使用URLConnection
,而不是NSURLConnection
?
【参考方案1】:
所以在 Swift 3 中,一些方法的签名略有改变。我也遇到过这个问题。对于您所需的所有委托方法,只需开始输入方法的前几个字母,然后按 ctrl + 空格,它应该会自动完成您的方法的正确签名
【讨论】:
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