AFNetworking Background Task

Question

I'm currently working on replacing ASIHTTP code with AFNetworking. I have a scenario where I have multiple files to synchronize with the server. I want this task to continue in the background and I have noticed that the download is progressing when I'm in the background. I'm just curious and confused if I need to do any additional calls to support background downloading.

I found the following on a thread.

__block UIBackgroundTaskIdentifier backgroundTaskIdentifier = [application   beginBackgroundTaskWithExpirationHandler:^(void) {
    [application endBackgroundTask:backgroundTaskIdentifier];
    [[NordecaAFAPIClient sharedClientWithBaseURL:[ECUserDefaults getNordecaApiURL]].operationQueue cancelAllOperations] ;
}];

What do I really require to write in order to support background dowloading?

The other question I have is that what is meant by the shouldResume flag found in the AFDownloadRequestOperation?

this question is a duplication of http://stackoverflow.com/questions/7800614/does-afnetworking-have-backgrounding-support — tkanzakic, Dec 03 '12 at 10:47

score 4 · Answer 1 · edited May 23 '17 at 11:43

As in Does AFNetworking have backgrounding support? , AFURLConnectionOperation now already supports setShouldExecuteAsBackgroundTaskWithExpirationHandler:, which basically does the background download management for you, as its performance is just the same as the normal UIBackgroundTaskIdentifier code in applicationDidEnterBackground, like what you wrote in the question.

And with regards to the shouldResume in AFDownloadRequestOperation, it's a symbol indicating that when the file is temporarily downloaded into a "incomplete" folder, which is a temp path, so when computing the already downloaded data size so that to know from where to resume the download, it will return a correct range.

AFNetworking Background Task

1 Answers1