iOS iPhone GKSession discovery in background -

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i know system can close bonjour sockets while application suspended. ,will system allow me while application in background discover other devices not creating sockets them , perhaps store devices in list or ?

use uiapplication's method

- (uibackgroundtaskidentifier)beginbackgroundtaskwithexpirationhandler:(void (^)(void))handler

you can run code in background 600 seconds on ios 4.x , later versions.


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