NSUrlSession InitSession(UrlSessionDownloadDelegate sessionDownloadDelegate,
NSUrlSessionConfiguration configuration)
{
sessionDownloadDelegate.Controller = this;
using (configuration)
{
return(createSession(configuration, sessionDownloadDelegate));
}
}
/**
* We initialize the background session with the following options
* - nil as queue: The method, called on events could end up on any thread
* - Only one connection per host
*/
NSUrlSession InitBackgroundSession(UrlSessionDownloadDelegate sessionDownloadDelegate)
{
sessionDownloadDelegate.Controller = this;
NSUrlSessionConfiguration configuration;
if (UIDevice.CurrentDevice.CheckSystemVersion(8, 0))
{
configuration = NSUrlSessionConfiguration.CreateBackgroundSessionConfiguration(_identifier);
}
else
{
configuration = NSUrlSessionConfiguration.BackgroundSessionConfiguration(_identifier);
}
return(InitSession(sessionDownloadDelegate, configuration));
}
public DownloadManagerImplementation(UrlSessionDownloadDelegate sessionDownloadDelegate,
bool avoidDiscretionaryDownloadInBackground)
{
_avoidDiscretionaryDownloadInBackground = avoidDiscretionaryDownloadInBackground;
_queue = new List <IDownloadFile>();
if (avoidDiscretionaryDownloadInBackground)
{
_session = InitDefaultSession(sessionDownloadDelegate);
}
_backgroundSession = InitBackgroundSession(sessionDownloadDelegate);
// Reinitialize tasks that were started before the app was terminated or suspended
_backgroundSession.GetTasks2((dataTasks, uploadTasks, downloadTasks) => {
foreach (var task in downloadTasks)
{
AddFile(new DownloadFileImplementation(task));
}
});
}
private NSUrlSession createSession(NSUrlSessionConfiguration configuration, UrlSessionDownloadDelegate sessionDownloadDelegate)
{
configuration.HttpMaximumConnectionsPerHost = 1;
configuration.AllowsCellularAccess = true;
return(NSUrlSession.FromConfiguration(configuration, sessionDownloadDelegate, null));
}
NSUrlSession InitDefaultSession(UrlSessionDownloadDelegate sessionDownloadDelegate)
{
return(InitSession(sessionDownloadDelegate, NSUrlSessionConfiguration.DefaultSessionConfiguration));
}
