AFNetworking + big download files + resume downloads

Question

I need to download files > 500 Mo with AFNetworking. Sometimes, the time to download them is > 10 minutes and if the app is in background, the download can\'t be complete.

Answer 1

I ended up using the old (non ARC) ASIHTTPRequest framework for a similar task. AllowResumeForFileDownloads does what you need. Note that you server needs to support resuming by reading the Range http header.

if (![[NSFileManager defaultManager] fileExistsAtPath:downloadPath]){
    ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
    [request setDelegate:self];
    [request setAllowResumeForFileDownloads:YES];
    [request setDownloadDestinationPath:downloadPath];
    [request setTemporaryFileDownloadPath:tmpPath];
    [request startAsynchronous];
}

Answer 2

Update:

As steipete may wont maintain AFDownloadRequestOperation any more (https://github.com/steipete/AFDownloadRequestOperation/pull/68). NSURLSessionDownloadTask may be a better choice.

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https://github.com/steipete/AFDownloadRequestOperation

Also, I write a lib base on AFDownloadRequestOperation: https://github.com/BB9z/RFDownloadManager