应用程序无法及时启动

Question

我该如何诊断此错误？

Application Specific Information:
    MyApp failed to launch in time

    Elapsed total CPU time (seconds): 4913.443 (user 3868.270, system 1045.173), 56% CPU 
    Elapsed application CPU time (seconds): 0.010, 0% CPU

    Backtrace not available

    Unknown thread crashed with unknown flavor: 5, state_count: 1

    Binary Images:
    0x2fe00000 - 0x2fe26fff  dyld armv7  <a11905c8ef7906bf4b8910fc551f9dbb> /usr/lib/dyld

这是我的didFinishLaunching方法:

#pragma mark -
#pragma mark Application lifecycle

    - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    

        if(getenv("NSZombieEnabled") || getenv("NSAutoreleaseFreedObjectCheckEnabled")) 
        {
            NSLog(@"NSZombieEnabled/NSAutoreleaseFreedObjectCheckEnabled enabled!");
        }

        // Override point for customization after application launch.
        [[NSNotificationCenter defaultCenter] addObserver: self selector: @selector(reachabilityChanged:) name: kReachabilityChangedNotification object: nil];

        //Check for connectivity
        internetReach = [[Reachability reachabilityForInternetConnection] retain];
        [internetReach startNotifer];
        [self updateInterfaceWithReachability: internetReach];

        [window addSubview:navigationController.view];
        [window makeKeyAndVisible];

        return YES;
    }

Answer 1

您可能在AppDelegate的应用程序中进行了大量的设置工作:didFinishLaunching方法.

您应该确保此功能尽快退出.任何需要时间的设置工作(例如网络访问)都应该在应用程序中异步完成.在这种情况下,您可以显示一个微调器来向用户指示应用程序正在加载.

Answer 2

为了向Philippe Leybaert的回复添加这样的信息.
如果应用程序需要花费很多时间来启动主线程将被杀死,因此应用程序将崩溃.

• 当您使用模拟器时,它不会崩溃.
  
• 当您使用连接到xcode的iphone时,它不会崩溃.
• 当您将其发送到App Store时,如果Apple测试仪使用的是快速iPhone,则可能会被接受
• 当您的用户像iPhone 3S一样缓慢崩溃时

在提交之前测试此issu的方法是部署到testflight或使用adhoc并将其安装在您要支持的较慢设备上.