IOS游戏中心GKLocalPlayerListener

Question

我试图在回合制游戏中实现一个事件监听器,这样玩家可以在轮到他或者被朋友邀请时接收.在IOS 7中不推荐使用GKTurnBasedEventHandler,我在文档中读到了我应该使用的GKLocalPlayerListener; 但这是它的延伸.是否有人使用过它,因为任何地方都没有信息.

这是我以前尝试过的,它不起作用.

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    GKLocalPlayer *localPlayer = [GKLocalPlayer localPlayer];
    [localPlayer authenticateWithCompletionHandler:^(NSError *error)
     {
         if (localPlayer.isAuthenticated)
         { 
             GKLocalPlayer *localPlayer = [GKLocalPlayer localPlayer];
             [localPlayer registerListener:self];
         }
     }];

    return YES;
}

-(void)handleInviteFromGameCenter:(NSArray *)playersToInvite
{
    NSLog(@"test");
}

- (void)player:(GKPlayer *)player receivedTurnEventForMatch:(GKTurnBasedMatch *)match didBecomeActive:(BOOL)didBecomeActive
{
    NSLog(@"test");
}

Answer 1

这是我用来注册 GKLocalPlayerListener 的一些代码

__weak GKLocalPlayer *localPlayer = [GKLocalPlayer localPlayer];
localPlayer.authenticateHandler = ^(UIViewController *viewController, NSError *error) {
   if (viewController) {
         [authenticateFromViewController presentViewController:viewController animated:YES completion:^{
          [localPlayer registerListener:self];
          NSLog(@"Authenticated. Registering Turn Based Events listener");
        }];
  } else if (localPlayer.authenticated) {
         [localPlayer registerListener:self];
         NSLog(@"User Already Authenticated. Registering Turn Based Events listener");
  } else {
         NSLog(@"Unable to Authenticate with Game Center: %@", [error localizedDescription]);
  }
};

该文档指出，您应该只注册一次 GKLocalPlayerEventListener，这样您就可以通过检查您是否已经注册来改进此代码。

请注意，这authenticateWithCompletionHandler在 iOS 6 中已被弃用，他们建议像我上面那样设置authenticateHandler 属性。