Tutorial by Topics: nsurl

The NSURLSession class and related classes provide an API for downloading content. This API provides a rich set of delegate methods for supporting authentication and gives your app the ability to perform background downloads when your app is not running or, in iOS, while your app is suspended. A...
This section provides an overview of what nsurlsession is, and why a developer might want to use it. It should also mention any large subjects within nsurlsession, and link out to the related topics. Since the Documentation for nsurlsession is new, you may need to create initial versions of tho...

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