iOS game center sending friend request and invite alerts

[ajay009ajay]

Hello,

I have written code to send friend request but whenever I am clicking on "send" button the exc_bad_access error is occurring. Here is the part of code which send the request to another player.

UIViewController* UVC=[[UIViewController alloc] init];    
    GKFriendRequestComposeViewController *friendRequestViewController = [[GKFriendRequestComposeViewController alloc] init];
    friendRequestViewController.composeViewDelegate = self;
 
    [[[CCDirector sharedDirector] openGLView] addSubview:tempInviteFriendView.view];
    [UVC presentModalViewController:friendRequestViewController animated: YES];
    [UVC release];

My question is how the other player knows the request came and what code I should modify to accept invite and start the game? And also how to know the friend request is accepted by other friend?

 

[dejo]

What is the purpose of UVC (a pretty poorly named variable, by the way) in the above code?