从Facebook 4.0.x开始，使用[PFFacebookUtils initializeFacebookWithApplicationLaunchOptions:launchOptions](semaphore_wait_slow陷阱)来解析登录挂起 [英] Parse login hang since Facebook 4.0.x with [PFFacebookUtils initializeFacebookWithApplicationLaunchOptions:launchOptions] (semaphore_wait_slow trap)

问题描述

自从将Facebook更新到v4.0.x和最新的Parse库以来，我的应用程序正在挂起，似乎是在尝试登录用户时.

Since updating Facebook to v4.0.x and the latest Parse libraries, my app is hanging, seemingly when trying to log in the user.

我的堆栈跟踪如下:

我以前有一个非常类似的问题，在这里回答:调用[PFFacebookUtils initializeFacebook]-semaphore_wait_trap

I had a very similar problem previously, answered here: Parse crash when calling [PFFacebookUtils initializeFacebook] - semaphore_wait_trap

但是该解决方案不再起作用，因为看来[PFUser currentUser]已被卡在其中的[PFUser(Private) _getCurrentUserWithOptions:]和[BFTask(Private) waitForResult:withMainThreadWarning:]取代.

However that solution no longer works, since it seems [PFUser currentUser] has been replaced with [PFUser(Private) _getCurrentUserWithOptions:] and [BFTask(Private) waitForResult:withMainThreadWarning:] where it gets stuck.

在我的应用程序中，我将PFUser子类化为名为MPLUser的类，并覆盖了用户方法.不确定这是否与问题有关?

In my app, I've subclassed PFUser to a class called MPLUser, and overridden the user method. Not sure if this might be something to do with the issue?

+ (MPLUser *)user
{
    return (MPLUser *)[PFUser user];
}

一旦开始发生，就无法启动该应用程序.但是，我通常会在锁定开始发生之前设法启动应用程序几次.通常是在车祸后发生的...

Once this starts occurring, it becomes impossible to launch the app. However, I usually manage to launch the app a few times before the lock starts happening. It usually happens after a crash...

我正在使用pod'ParseFacebookUtilsV4'，并将所有库更新为最新版本.

I'm using pod 'ParseFacebookUtilsV4' and have updates all libraries to latest versions.

更新:

这里是来自另一个线程的更多堆栈跟踪信息，这似乎是在尝试登录:

Here's more stack trace from another thread, that is seemingly trying to log on:

我按以下顺序初始化Parse和Facebook.如果我拨回电话，则会崩溃:

I initialise Parse and Facebook in the following order. If I reverse the calls, it crashes:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    [self initDefaults];
    [self initialiseApplicationSpecifics];
    [self setupParseWithOptions:launchOptions];
    [self enableCrashReporting];
    [self setupIAPs]; 
//etc... 
}


- (void)initialiseApplicationSpecifics
{
    [Flurry setCrashReportingEnabled:YES];
    [self registerParseSubclasses];
    [ParseCrashReporting enable];
    [Parse enableLocalDatastore];
#ifdef MPL
    [Parse setApplicationId:@"xxxyyy"
                  clientKey:@"xxxyyy"];
    [Flurry startSession:@"xxxyyy"];
#elif MGM
    [Parse setApplicationId:@"yyyxxx"
                  clientKey:@"yyyxxx"];
    [Flurry startSession:@"yyyxxx"];
#endif
}

- (void)setupParseWithOptions:(NSDictionary *)launchOptions
{
    [PFFacebookUtils initializeFacebookWithApplicationLaunchOptions:launchOptions];
    [PFTwitterUtils initializeWithConsumerKey:@"aaaabbbb"
                               consumerSecret:@"bbbbaaaa"];
    [PFAnalytics trackAppOpenedWithLaunchOptions:launchOptions];
}

推荐答案

似乎要通过解析1.7.2修复

Seems to be fixed with parse 1.7.2

根据v1.7.2-2015年4月27日

According to v1.7.2 — April 27, 2015

新功能:扩展和WatchKit的本地数据共享. 改进了ParseFacebookUtils的可空性注释.
修复:在主线程上未调用带块回调的logOutInBackground. 修复:对于PFSubclassing.h使用导入，可能会导致编译错误.
修复:如果通过saveEventually保存自动用户，则不是持久的currentUser.
已修复:使用ParseFacebookUtils和currentUser的罕见死锁方案.
已修复:将多个对象连续固定到同一针脚的问题很少.
固定:用户无法与Facebook链接时的罕见情况.
提高了本地数据存储的性能和可靠性. 性能改进.
其他小错误修复.

New: Local Data Sharing for Extensions and WatchKit. Improved nullability annotations for ParseFacebookUtils.
Fixed: logOutInBackground with block callback not called on main thread. Fixed: Potential compilation error with using imports for PFSubclassing.h.
Fixed: Not persistent currentUser if saving automatic user via saveEventually.
Fixed: Rare deadlock scenario with using ParseFacebookUtils and currentUser.
Fixed: Rare issue with pinning multiple objects in a row to the same pin.
Fixed: Rare scenario when user could be not linked with Facebook.
Improved performance and reliability of Local Datastore. Performance improvements.
Other small bug fixes.

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