nsurlsession

I am trying to implement a long-polling solution in Swift using iOS 8+. While the solution undoubtedly works and leaves the main thread free for UI interactions, the memory usage climbs continuously so I am obviously doing something wrong. The class I have written is as follows: enum LongPollError:ErrorType{ case IncorrectlyFormattedUrl case HttpError } public class LongPollingRequest: NSObject { var GlobalUserInitiatedQueue: dispatch_queue_t { return dispatch_get_global_queue(Int(QOS_CLASS_USER_INITIATED.rawValue), 0) } var GlobalBackgroundQueue: dispatch_queue_t { return dispatch_get_global

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have created a very simple app to download a text file from my web server. I have this working perfectly with NSURLConnection, but am trying to migrate over to NSURLSession instead. The issue I am having is that none of the delegate methods are being called. My server is password protected so I need to use the basic http authentication to access the file, but when the didReceiveChallenge method is never called. The line of code [getFileTask resume] seems to have no effect on anything. My setup is as follows: @interface ViewController :

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: When trying to create my own session object NSURLSession() and request an url I get an unrecognized selector exception but when I use the shared session NSURLSession.sharedSession() everything works fine. How come? var url = NSURL(string: "http:/www.google.com") if url != nil { //throws unrecognized selector when dataTaskWithURL is called let session=NSURLSession() session.dataTaskWithURL(url!) //works let sharedSession=NSURLSession.sharedSession() sharedSession.dataTaskWithURL(url!) } 回答1: You have to init URLSession with a configuration:

I have a situation in which when the device receives a push notification, I would send a NSURLSession combined with a NSURLConnection . I have a couple of questions regarding NSURLSession . Does NSURLSession's Data Task automatically resume in the background, if internet connection is lost? Does NSURLSession automatically attempt to complete the task if there is no internet initially, or does the session just return with an error? Looks like it's down to you to handle the retry. When any task completes, the NSURLSession object calls the delegate’s URLSession:task:didCompleteWithError: method

I'm currently developing an iOS 8 App Extension, and am having difficulty with this one last piece. In the rest of my app, I use an AFHTTPSessionManager subclass that I instantiate like this: + (MYAPIClient *)sharedClient { static MYAPIClient *_sharedClient = nil; static dispatch_once_t onceToken; dispatch_once(&onceToken, ^{ _sharedClient = [[MYAPIClient alloc] initWithBaseURL:[NSURL URLWithString:kMYBaseURL]]; _sharedClient.requestSerializer = [[MYAPIRequestSerializer alloc] init]; _sharedClient.responseSerializer = [[MYAPIResponseSerializer alloc] init]; }); return _sharedClient; } When I

I am trying to create a webview (as an exercise) that does not track or store any browsing history locally. I have made it so that when the webview is closed, it calls the following [[NSURLSession sharedSession]resetWithCompletionHandler:^{}]; but I am finding that things like google search history persists some how between sessions. I have also tried clearing cookies separately through NSHTTPCookieStorage *storage = [NSHTTPCookieStorage sharedHTTPCookieStorage]; for (NSHTTPCookie *cookie in [storage cookies]) { [storage deleteCookie:cookie]; } [[NSUserDefaults standardUserDefaults]