The document contains code snippets related to the use of the GKPeerPickerController and GKSession classes in an iOS application. It outlines how to initialize a peer picker, manage peer connections, and handle application state transitions for peer connectivity. The code also includes methods for responding to connection requests and changing peer states.

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6. GKPeerPickerController* picker = [[GKPeerPickerController alloc] init];
picker.delegate = self;
picker.connectionTypesMask = GKPeerPickerConnectionTypeNearby;
[picker show];
- (void)peerPickerController:didConnectPeer:toSession:
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7. session = [[GKSession alloc] initWithSessionID:SESSION_ID
! ! ! ! ! ! ! ! ! ! ! ! displayName:nil
! ! ! ! ! ! ! ! ! ! ! sessionMode:GKSessionModePeer];
! ! [session setDataReceiveHandler:self withContext:nil];
! ! session.delegate = self;
! !
session.available = YES;
- (void) session: didReceiveConnectionRequestFromPeer:
- (void) session: peer: didChangeState:
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10. peersWithConnectionState:
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14. - (void)applicationDidEnterBackground:(UIApplication *)application {
[self.currentSession disconnectFromAllPeers];
self.currentSession.available = NO;
}
- (void)applicationWillEnterForeground:(UIApplication *)application {
! ! self.currentSession.available = YES;
}
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