应用程序在iOS的

TESTPRO_TEST[830] has active assertions beyond permitted time: 
     {(
      <BKProcessAssertion: 0x1fd48670> identifier: UIKitBackgroundCompletionTask process: TESTPRO_TEST[830] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:830 preventSuspend preventIdleSleep , 
      <BKProcessAssertion: 0x2083f190> identifier: UIKitBackgroundCompletionTask process: TESTPRO_TEST[830] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:830 preventSuspend preventIdleSleep 
     )} 
    <Warning>: Forcing crash report of DSC_TEST[830]... 
    <Warning>: Finished crash reporting. 
    [830] has active assertions beyond permitted time: 
     {(
      <BKProcessAssertion: 0x1fd48670> identifier: UIKitBackgroundCompletionTask process: [830] permittedBackgroundDuration: 600.000000 reason: finishTask owner pid:830 preventSuspend preventIdleSleep 
     )} 
    <Warning>: Forcing crash report of [830]... 
    <Error>: Multiple simulate crash requests for pid 830 
    <Warning>: Finished crash reporting. 
    <Warning>: pid_suspend failed for [830]: Unknown error: -1, Unknown error: -1 
    com.apple.launchd[1] (UIKitApplication:com.testPro.Test[0x4aff][830]) <Notice>: (UIKitApplication:com.testPro.Test[0x4aff]) Exited: Killed: 9 
    <Warning>: Application 'UIKitApplication:com.testPro.Test[0x4aff]' exited abnormally with signal 9: Killed: 9 
    �<Debug>: launchd[869] Builtin profile: container (sandbox) 
    <Debug>: launchd[869] Container: /private/var/mobile/Applications/3CF1EEC9-B6EF-45EA-999D-EBB9C02106EE (sandbox) 
    <Error>: Not saving crash log because we have reached the limit for logs to store on disk. Sync or otherwise clear logs from /var/mobile/Library/Logs/CrashReporter to save new logs. 
    <Error>: Could not save crash report to disk!

当应用程序进入后台进入后台崩溃，我添加的代码应用程序在iOS的

- (void) applicationDidEnterBackground:(UIApplication *) application 
{ 

    [UIApplication sharedApplication].applicationIconBadgeNumber = 0; 
    UIBackgroundTaskIdentifier bgTask = 0; 
    UIApplication *app = [UIApplication sharedApplication]; 
    bgTask = [app beginBackgroundTaskWithExpirationHandler: ^{ 
     [app endBackgroundTask:bgTask]; 
    }]; 

}

当应用程序进入background.Can任何人帮助我解决这个碰撞发生崩溃？

来源

2013-04-03 Aswathy Bose

原因很明显 - 它指向日志 - 您的时间已过期。 Applications running background tasks have a finite amount of time in which to run them. (You can find out how much time is available using the backgroundTimeRemaining property.) If you do not call endBackgroundTask: for each task before time expires, the system kills the application.

我不认为你应该在applicationDidEnterBackground:中尝试将此方法调用到适当的位置（开始工作的位置）。您可以使用它来包装长时间播放的流程，这些流程也可能以bkg工作。不要严格评判我的答案，这只是我的猜测，可能会成为现实。

P.S.这里有很好的解释What are beginBackgroundTaskWithExpirationHandler and endBackgroundTask methods

来源

2013-04-03 08:51:32 Stas

感谢您的回复。但是应用程序在后台运行的时间有限吗？ –

这是一些苹果常量，但事情是，你以一种错误的方式使用这种方法！你不应该在'applicationDidEnterBackground'中调用它，最好在开始某个任务之前调用它，并且不要忘记在最后调用'endBackgroundTask'。这里有很好的解释是什么实际上'beginBackgroundTaskWithExpirationHandler' http://stackoverflow.com/questions/12071726/how-to-use-beginbackgroundtaskwithexpirationhandler-for-already-running-task-in – Stas

在iOS7中，一个正常的应用程序有限的时间在背景中是3分钟，即180秒，在iOS7之前是10分钟，即600秒。 –

应用程序在iOS的

回答

相关问题