确切的答案是什么playersToInvite是(Definitive answer to what

游戏中心资料表明，

playersToInvite参数是当你的应用程序直接从游戏中心申办比赛推出非空。

有几个人问这是如何工作究竟，即似乎没有成为一个方式来选择从游戏中心应用的朋友，邀请他们从游戏中心玩; 当你在游戏中邀请它才会起作用。在本文档日期或有开始从游戏中心游戏专用比赛以秘密的方式？我想测试我的inviteHandler但我一直无法确定这个参数是如何传递给应用程序。

[GKMatchmaker sharedMatchmaker].inviteHandler = ^(GKInvite *acceptedInvite, NSArray *playersToInvite)
{
    // clean up games in progress here
    if (acceptedInvite)
    {
        NSLog(@"acceptedInvite %@", acceptedInvite);
        // The acceptedInvite parameter is non-nil when the application receives an 
        // invitation directly from another player.
        GKMatchmakerViewController *mmvc = [[[GKMatchmakerViewController alloc] initWithInvite:acceptedInvite] autorelease];
        mmvc.matchmakerDelegate = self;
        [self disableHomeUI];
        [self presentModalViewController:mmvc animated:YES];
    }
    else if (playersToInvite)
    {
        NSLog(@"playersToInvite %@", playersToInvite);
        // playersToInvite parameter is non-nil when your application is launched 
        // directly from the Game Center application to host a match
        [self disableHomeUI];
        [self doPresentMatchMakerUIWithPlayersToInvite:playersToInvite];
    }
};