Question

I have a class called MatchmakingServer has a method as following:

- (void)session:(GKSession *)session peer:(NSString *)peerID didChangeState:(GKPeerConnectionState)state

{

switch (state)
{
    case GKPeerStateAvailable:
        break;

    case GKPeerStateUnavailable:
        break;

        // A new client has connected to the server.
    case GKPeerStateConnected:
        if (_serverState == ServerStateAcceptingConnections)
        {
            if (![_connectedClients containsObject:peerID])
            {
                NSString *peerID2 =[self displayNameForPeerID:peerID];
                self.PeerId=peerID;
                UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Oops:("
                                                                message:[NSString stringWithFormat:@"%@:%@ %@",@"device",peerID2,@"want to join your session"]
                                                               delegate:self
                                                      cancelButtonTitle:@"NO"
                                                      otherButtonTitles:nil];


                [_connectedClients addObject:peerID];
                NSLog(@"the orginal peerID %@",peerID);
                [self.delegate matchmakingServer:self clientDidConnect:peerID];
            }
        }

also

@interface MatchmakingServer : NSObject <GKSessionDelegate,UIAlertViewDelegate>

Any Ideas why alertView dosn’t call the clickedButtonAtIndex

Answer 1

You’re not showing the alert view on the screen, you’re only initializing it. Insert

[alert show];

after the initialization code and you should be fine.