问题
What is the correct way to create singletone subclass of AFHTTPSessionManager with custom session configuration?
class DefaultSessionConfiguration: NSURLSessionConfiguration {
override init () {
super.init()
self.HTTPShouldSetCookies = true
HTTPCookieStorage?.cookieAcceptPolicy = NSHTTPCookieAcceptPolicy.Always
HTTPAdditionalHeaders = [ "Content-Type": "application/json"];
}
}
let baseUrl = "https://google.com"
class HTTPManager: AFHTTPSessionManager {
static let _sharedAPIManager = HTTPManager(baseURL: NSURL(string: baseUrl)!, sessionConfiguration:DefaultSessionConfiguration())
class var sharedInstance : HTTPManager {
return _sharedAPIManager
}
override init(baseURL url: NSURL!, sessionConfiguration session:NSURLSessionConfiguration? ) {
super.init(baseURL: url, sessionConfiguration: session)
self.responseSerializer = AFJSONResponseSerializer() as AFJSONResponseSerializer
self.requestSerializer = AFJSONRequestSerializer() as AFJSONRequestSerializer
}
}
While trying to use this code as self.sessionManager = HTTPManager.sharedInstance it is always crashed with message
[MyApp.DefaultSessionConfiguration setHTTPShouldSetCookies:]: unrecognized selector sent to instance 0x7f99f8f31b70
but MyApp.DefaultSessionConfiguration is subclass of NSURLSessionConfiguration and defenetly has this method.
So, how do we solve this problem?
回答1:
The issue is that you shouldn't be instantiating a NSURLSessionConfiguration directly. You should instantiate it by calling one of the following class methods: defaultSessionConfiguration, ephemeralSessionConfiguration or backgroundSessionConfigurationWithIdentifier. For example:
let configuration = NSURLSessionConfiguration.defaultSessionConfiguration()
configuration.HTTPShouldSetCookies = true
configuration.HTTPCookieStorage?.cookieAcceptPolicy = .Always
来源：https://stackoverflow.com/questions/33853319/afhttpsessionmanager-subclass-swift