ios - 主线程阻塞导致应用程序在iOS 8中崩溃

我的应用在启动时崩溃，因为例外＆＃39;无法及时更新场景＆＃39;

这是因为可达性不能按时返回这是堆栈跟踪

com.tjango.Plus3 failed to scene-update in time

Elapsed total CPU time (seconds): 2.590 (user 2.590, system 0.000), 12% CPU 
Elapsed application CPU time (seconds): 0.302, 1% CPU


Thread 0 name:  Dispatch queue: com.apple.main-thread
Thread 0:
_semaphore_wait_trap + 8
__dispatch_semaphore_wait_slow + 252
_xpc_connection_send_message_with_reply_sync + 184
___SCNetworkReachabilityServer_targetStatus + 192
___SCNetworkReachabilityGetFlags + 440
_SCNetworkReachabilityGetFlags + 232
-[Reachability currentReachabilityStatus] Reachability.m:295

仅在iOS 8上发生。

它卡住的功能是Apple的Reachability库：我无法弄清楚为什么这个功能会阻止它。

- (NetworkStatus)currentReachabilityStatus

{

    NSAssert(_reachabilityRef != NULL, @"currentNetworkStatus called with NULL SCNetworkReachabilityRef");

    NetworkStatus returnValue = NotReachable;

    SCNetworkReachabilityFlags flags;



    if (SCNetworkReachabilityGetFlags(_reachabilityRef, &flags))

    {

        if (_alwaysReturnLocalWiFiStatus)

        {

            returnValue = [self localWiFiStatusForFlags:flags];

        }

        else

        {

            returnValue = [self networkStatusForFlags:flags];

        }

    }



    return returnValue;

}

主线程阻塞导致应用程序在iOS 8中崩溃

1 个答案: