AFHTTPSessionManager子类swift [英] AFHTTPSessionManager subclass swift
问题描述
使用自定义会话配置创建AFHTTPSessionManager的单调子类的正确方法是什么?
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
}
}
同时尝试将此代码用作 self.sessionManager = HTTPManager.sharedInstance
它总是崩溃并显示消息
While trying to use this code as self.sessionManager = HTTPManager.sharedInstance
it is always crashed with message
[MyApp.DefaultSessio nConfiguration setHTTPShouldSetCookies:]:
无法识别的选择器发送到实例0x7f99f8f31b70
[MyApp.DefaultSessionConfiguration setHTTPShouldSetCookies:]: unrecognized selector sent to instance 0x7f99f8f31b70
但MyApp.DefaultSessionConfiguration是NSURLSessionConfiguration的子类,因此毫无保留地拥有此属性
but MyApp.DefaultSessionConfiguration is subclass of NSURLSessionConfiguration and defenetly has this method.
那么,我们如何解决这个问题?
So, how do we solve this problem?
推荐答案
问题在于您不应该直接实例化 NSURLSessionConfiguration
。您应该通过调用以下类方法之一来实例化它: defaultSessionConfiguration
, ephemeralSessionConfiguration
或 backgroundSessionConfigurationWithIdentifier
。例如:
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
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