Question

我试图邀请附近的玩家参加比赛，但邀请函要么从未发送过，要么从未收到过。

GKMatchMaker startBrowsingForNearbyPlayersWithHandler工作并返回相同wifi上的附近玩家，但后来我使用findMatchForRequest并返回没有任何玩家的匹配，我尝试邀请的玩家从未收到邀请通知。这是我的代码。

我首先验证本地播放器：

GKLocalPlayer.localPlayer.authenticateHandler= ^(UIViewController *controller, NSError *error)
{
    if (error)
    {
        NSLog(@"%s:: Error authenticating: %@", __PRETTY_FUNCTION__, error.localizedDescription);
        return;
    }
    if(controller)
    {
        // User has not yet authenticated
        [pViewController presentViewController:controller animated:YES completion:^(void)
         {
             [self lookForNearbyPlayers];
         }];
        return;
    }
    [self lookForNearbyPlayers];
};

-(void)lookForNearbyPlayers
{
    if(!GKLocalPlayer.localPlayer.authenticated)
    {
        NSLog(@"%s:: User not authenticated", __PRETTY_FUNCTION__);
        return;
    }

我将视图控制器注册为GKLocalPlayerListener的代理：

    [GKLocalPlayer.localPlayer registerListener:self]; // self is a view controller.

    // This works. My test local player which is a second device and appleID I setup shows up when this handler is called.
    [GKMatchmaker.sharedMatchmaker startBrowsingForNearbyPlayersWithHandler:^(GKPlayer *player, BOOL reachable)
    {
         NSArray * paPlayers= [NSArray arrayWithObject:player];
         _pMatchRequest= [[GKMatchRequest alloc] init];
         _pMatchRequest.minPlayers= 2;
         _pMatchRequest.maxPlayers= 4;
         _pMatchRequest.recipients = paPlayers;
         _pMatchRequest.inviteMessage = @"Join our match!";
         _pMatchRequest.recipientResponseHandler = ^(GKPlayer *player, GKInviteeResponse response)
         {
             // This is never called.
             NSLog((response == GKInviteeResponseAccepted) ? @"Player %@ Accepted" : @"Player %@ Declined", player.alias);
         };

         // This returns with a match without any players.
         [GKMatchmaker.sharedMatchmaker findMatchForRequest:_pMatchRequest withCompletionHandler:^(GKMatch *match, NSError *error)
          {
              if(error)
              {
                  NSLog(@"%s:: %@", __PRETTY_FUNCTION__, error.localizedDescription);
                  return;
              }
              else if(match != nil)
              {
                  _pMatch= match;
                  match.delegate = self;
                  NSLog(@"players count= %lu", (unsigned long)_pMatch.players.count); // Always returns 0
              }
          }];
     }
}

我有GKLocalPlayerListener设置的委托方法，但从不调用它们：

- (void)player:(GKPlayer *)player didRequestMatchWithRecipients:(NSArray<GKPlayer *> *)recipientPlayers
{
    NSLog(@"%s", __PRETTY_FUNCTION__);
}

- (void)player:(GKPlayer *)player didAcceptInvite:(GKInvite *)invite
{
    NSLog(@"%s", __PRETTY_FUNCTION__);
}

有没有人知道如何让它工作没有 GKMatchmakerViewController和iOS9？我能找到的唯一例子有不推荐使用的-inviteHandler方法。

Answer 1

如果您知道如何将其转换为Objective-C并尝试使用此代码，则可以使用Swift。

GKMatchmaker.sharedMatchmaker().findMatchForRequest(
    request,
    withCompletionHandler: {(match : GKMatch!, error: NSError!) -> Void in
        NSLog("This works")
})

Answer 2

根据SO上的多个问题，Game Center似乎时不时会陷入困境。在最好的情况下，它返回＆＃34;游戏未被识别＆＃34;错误。在最糟糕的情况下，它只是愉快地将nil返回到GC调用。有时它会恢复自己的工作，有时它不会。但是，您似乎可以通过登录iTunesConnect再次启动它并执行以下任何操作：

添加排行榜
更改默认排行榜
添加成就

我已将此添加到我的调试例程中。如果GC的某些方面停止工作，或返回nil，我会尝试在继续之前在iTunesConnect中进行上述更改之一。在我的情况下，我得到了＃34;游戏无法识别＆＃34;每周几次，但其他几个人已经注意到了#n; nil返回值。＆＃34;

Answer 3

我知道这是一篇较旧的文章，但是在尝试通过Internet在多个应用程序实例之间建立连接时遇到了它。我相信您缺少的部分是注册了侦听器后，您需要使用来获取连接状态

    - (void)match:(GKMatch *)match
        player:(GKPlayer *)player
        didChangeConnectionState:(GKPlayerConnectionState)state
 {
     NSLog(@">>> did change state");

     if (state == GKPlayerStateConnected)
     {
         NSLog(@">>>> match:%@ did change to Connected for player %@ ",match, player.displayName);

     }
   else if (state == GKPlayerStateDisconnected)
   {
    NSLog(@">>>> match:%@ disconnected for player %@ ",match, player.displayName);
   }

当我从findMatchForRequest：调用complementHandler时，我发现比赛有0名球员，但是我可以成功地使用didChangeConnectionState中返回的GKMatch和GKPlayer：希望这对在OP之后阅读了这篇文章的人有所帮助。

GKMatchmaker findMatchForRequest邀请从未收到过

3 个答案: