iOS 6 Game Center 在身份验证时崩溃 [英] iOS 6 Game Center Crash on Authentication

问题描述

我正在 Cocos2d-iPhone 中构建游戏，当我更新到 iOS 6 时，我注意到 Apple 改变了 Game Center 身份验证的方式，使用 authenticateHandler 而不是 authenticateWithCompletionHandler.

I am building a game in Cocos2d-iPhone, and while I was updating to iOS 6, I noticed that Apple changed the way Game Center authentication is done, using authenticateHandler instead of authenticateWithCompletionHandler.

我添加了新的身份验证方法，但如果玩家尚未登录 Game Center，游戏现在会崩溃.如果用户已经登录，则验证没有问题.

I added the new authentication method, but the game now crashes if a player is not already logged in to Game Center. There is no problem authenticating if a user is already logged in.

这是我的代码:

if(SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"6.0"))
{
    GKLocalPlayer *localPlayer = [GKLocalPlayer localPlayer];
    localPlayer.authenticateHandler = ^(UIViewController *viewController, NSError *error)
    {
        if (viewController != nil)
        {
            AppController *appDelegate = (AppController*)[UIApplication sharedApplication].delegate;

            [delegate.viewController presentViewController:viewController animated:YES completion:nil];
        }
        else if (localPlayer.isAuthenticated)
        {
            NSLog(@"Player authenticated");
        }
        else
        {
            NSLog(@"Player authentication failed");
        }
    };
}

尝试显示 Game Center viewController 时似乎崩溃了，即使我使用完全相同的代码来显示 GKTurnBasedMatchmakerViewController 没有任何问题.

It seems like it's crashing when trying to present the Game Center viewController, even though I use the exact same code to present the GKTurnBasedMatchmakerViewController with no issues.

任何帮助将不胜感激.

这是崩溃时抛出的异常:

Here is the exception getting thrown on crash:

未捕获的异常 UIApplicationInvalidInterfaceOrientation:支持的方向与应用程序没有共同的方向，并且 shouldAutorotate 正在返回 YES

推荐答案

在这里您可以找到有关崩溃的有用信息，我认为这是根本原因.https://developer.apple.com/library/ios/#releasenotes/General/RN-iOSSDK-6_0/_index.html

Here you can find useful information about your crash, I think it is the underlying reason. https://developer.apple.com/library/ios/#releasenotes/General/RN-iOSSDK-6_0/_index.html

应用应提供委托方法 application:supportedIntefaceOrientationsForWindow 并确保肖像是返回的掩码值之一.

Apps should provide the delegate method application:supportedIntefaceOrientationsForWindow and ensure that portrait is one of the returned mask values.

我添加了下面的代码来修复这个崩溃.

I added below code to fix this crash.

- (NSUInteger)application:(UIApplication*)application supportedInterfaceOrientationsForWindow:(UIWindow*)window
{
    return UIInterfaceOrientationMaskAllButUpsideDown;
}

这篇关于iOS 6 Game Center 在身份验证时崩溃的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！