我向 App Store 提交的内容因崩溃而被拒绝。但是，我无法在多个硬件设备和模拟器上重现崩溃。我已经用符号表示了崩溃日志，问题似乎出现在应用程序从服务器获取一些数据并关闭通知用户“请稍候...”的 UIAlertController 的代码区域中日志。
Date/Time: 2017-05-06 00:27:06.7009 +0700
Launch Time: 2017-05-06 00:26:43.8793 +0700
OS Version: iPhone OS 10.3.1 (14E304)
Report Version: 104
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Triggered by Thread: 1
Application Specific Information:
abort() called
Filtered syslog:
None found
Last Exception Backtrace:
0 CoreFoundation 0x18c47efd8 __exceptionPreprocess + 124
1 libobjc.A.dylib 0x18aee0538 objc_exception_throw + 56
2 CoreFoundation 0x18c47eeac +[NSException raise:format:arguments:] + 104
3 Foundation 0x18cf16710 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 112
4 UIKit 0x192823454 -[UIApplication _cachedSystemAnimationFenceCreatingIfNecessary:] + 196
5 UIKit 0x192823514 -[UIApplication _systemAnimationFenceCreatingIfNecessary:] + 24
6 UIKit 0x19287c7a0 +[UIWindow _synchronizedDrawingFence] + 116
7 UIKit 0x192a3a150 +[_UIKeyboardChangedInformation informationForKeyboardUp:withIAV:] + 104
8 UIKit 0x192d338d4 -[_UIRemoteKeyboards prepareToMoveKeyboard:withIAV:showing:forScreen:] + 464
9 UIKit 0x19266bc04 -[UIPeripheralHost(UIKitInternal) setInputViews:animationStyle:] + 820
10 UIKit 0x192688cf4 -[UIPeripheralHost(UIKitInternal) _restoreInputViewsWithId:animated:] + 584
11 UIKit 0x19291bd64 -[UIViewController _restoreInputViewsForPresentation] + 280
12 UIKit 0x1928f6e3c -[UIPresentationController runTransitionForCurrentState] + 1560
13 UIKit 0x1928f50f8 -[UIPresentationController _dismissWithAnimationController:interactionController:target:didEndSelector:] + 764
14 UIKit 0x19291b8c0 -[UIViewController _dismissViewControllerWithAnimationController:interactionController:completion:] + 464
15 UIKit 0x1926d0cd4 -[UIViewController _dismissViewControllerWithTransition:from:completion:] + 600
16 UIKit 0x192678b6c -[UIViewController dismissViewControllerWithTransition:completion:] + 1144
17 UIKit 0x19267894c -[UIViewController dismissViewControllerWithTransition:completion:] + 600
18 UIKit 0x19291ab68 -[UIViewController _performCoordinatedPresentOrDismiss:animated:] + 524
19 UIKit 0x1926786c0 -[UIViewController dismissViewControllerAnimated:completion:] + 152
20 DinokEtp 0x1001014c4 specialized ViewController.(downloadCaseTypesFile(workFlowVersionMobileShouleBeOn : Double, validateUserResponse : ValidateUserResponse) -> ()).(closure #1) (ViewController.swift:360)
21 DinokEtp 0x1000fd84c ViewController.(downloadCaseTypesFile(workFlowVersionMobileShouleBeOn : Double, validateUserResponse : ValidateUserResponse) -> ()).(closure #1) (ViewController.swift:0)
22 DinokEtp 0x100101b38 partial apply for ViewController.(downloadCaseTypesFile(workFlowVersionMobileShouleBeOn : Double, validateUserResponse : ValidateUserResponse) -> ()).(closure #1) (ViewController.swift:0)
23 CFNetwork 0x18ca89358 __85-[__NSURLSessionLocal downloadTaskForRequest:downloadFilePath:resumeData:completion:]_block_invoke + 32
24 CFNetwork 0x18caeb18c __50-[__NSCFLocalDownloadTask _private_fileCompletion]_block_invoke.321 + 84
25 Foundation 0x18cf4d804 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 16
26 Foundation 0x18ce92760 -[NSBlockOperation main] + 96
27 Foundation 0x18ce82b18 -[__NSOperationInternal _start:] + 612
28 Foundation 0x18cf4fba0 __NSOQSchedule_f + 228
29 libdispatch.dylib 0x18b3369a0 _dispatch_client_callout + 16
30 libdispatch.dylib 0x18b344ad4 _dispatch_queue_serial_drain + 928
31 libdispatch.dylib 0x18b33a2cc _dispatch_queue_invoke + 884
32 libdispatch.dylib 0x18b346a50 _dispatch_root_queue_drain + 540
33 libdispatch.dylib 0x18b3467d0 _dispatch_worker_thread3 + 124
34 libsystem_pthread.dylib 0x18b53f1d0 _pthread_wqthread + 1096
35 libsystem_pthread.dylib 0x18b53ed7c start_wqthread + 4
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0:
0 libsystem_kernel.dylib 0x000000018b45b224 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x000000018b45b09c mach_msg + 72
2 CoreFoundation 0x000000018c42ce88 __CFRunLoopServiceMachPort + 192
3 CoreFoundation 0x000000018c42aadc __CFRunLoopRun + 1060
4 CoreFoundation 0x000000018c35ad94 CFRunLoopRunSpecific + 424
5 GraphicsServices 0x000000018ddc4074 GSEventRunModal + 100
6 UIKit 0x000000019260c130 UIApplicationMain + 208
7 DinokEtp 0x00000001000654bc main (EMSCaseUpload.swift:14)
8 libdyld.dylib 0x000000018b36959c start + 4
Thread 1 name: Dispatch queue: NSOperationQueue 0x17003e2c0 :: NSOperation 0x17025e5d0 (QOS: DEFAULT)
Thread 1 Crashed:
0 libsystem_kernel.dylib 0x000000018b479014 __pthread_kill + 8
1 libsystem_pthread.dylib 0x000000018b543334 pthread_kill + 112
2 libsystem_c.dylib 0x000000018b3ed9c4 abort + 140
3 libc++abi.dylib 0x000000018aeb91b0 __cxa_bad_cast + 0
4 libc++abi.dylib 0x000000018aed2c04 default_unexpected_handler() + 0
5 libobjc.A.dylib 0x000000018aee0820 _objc_terminate() + 124
6 libc++abi.dylib 0x000000018aecf5d4 std::__terminate(void (*)()) + 16
7 libc++abi.dylib 0x000000018aecf640 std::terminate() + 60
8 libdispatch.dylib 0x000000018b3369b4 _dispatch_client_callout + 36
9 libdispatch.dylib 0x000000018b344ad4 _dispatch_queue_serial_drain + 928
10 libdispatch.dylib 0x000000018b33a2cc _dispatch_queue_invoke + 884
11 libdispatch.dylib 0x000000018b346a50 _dispatch_root_queue_drain + 540
12 libdispatch.dylib 0x000000018b3467d0 _dispatch_worker_thread3 + 124
13 libsystem_pthread.dylib 0x000000018b53f1d0 _pthread_wqthread + 1096
14 libsystem_pthread.dylib 0x000000018b53ed7c start_wqthread + 4
Thread 2:
0 libsystem_pthread.dylib 0x000000018b53ed78 start_wqthread + 0
Thread 3 name: com.apple.uikit.eventfetch-thread
Thread 3:
0 libsystem_kernel.dylib 0x000000018b45b224 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x000000018b45b09c mach_msg + 72
2 CoreFoundation 0x000000018c42ce88 __CFRunLoopServiceMachPort + 192
3 CoreFoundation 0x000000018c42aadc __CFRunLoopRun + 1060
4 CoreFoundation 0x000000018c35ad94 CFRunLoopRunSpecific + 424
5 Foundation 0x000000018ce74d64 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
6 Foundation 0x000000018ce95b34 -[NSRunLoop(NSRunLoop) runUntilDate:] + 96
7 UIKit 0x0000000192f965f8 -[UIEventFetcher threadMain] + 136
8 Foundation 0x000000018cf722c8 __NSThread__start__ + 996
9 libsystem_pthread.dylib 0x000000018b54175c _pthread_body + 240
10 libsystem_pthread.dylib 0x000000018b54166c _pthread_body + 0
11 libsystem_pthread.dylib 0x000000018b53ed84 thread_start + 4
Thread 4:
0 libsystem_kernel.dylib 0x000000018b479a88 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x000000018b53f274 _pthread_wqthread + 1260
2 libsystem_pthread.dylib 0x000000018b53ed7c start_wqthread + 4
Thread 5:
0 libsystem_pthread.dylib 0x000000018b53ed78 start_wqthread + 0
Thread 6 name: com.apple.NSURLConnectionLoader
Thread 6:
0 libsystem_kernel.dylib 0x000000018b45b224 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x000000018b45b09c mach_msg + 72
2 CoreFoundation 0x000000018c42ce88 __CFRunLoopServiceMachPort + 192
3 CoreFoundation 0x000000018c42aadc __CFRunLoopRun + 1060
4 CoreFoundation 0x000000018c35ad94 CFRunLoopRunSpecific + 424
5 CFNetwork 0x000000018cb66ca4 +[NSURLConnection(Loader) _resourceLoadLoop:] + 404
6 Foundation 0x000000018cf722c8 __NSThread__start__ + 996
7 libsystem_pthread.dylib 0x000000018b54175c _pthread_body + 240
8 libsystem_pthread.dylib 0x000000018b54166c _pthread_body + 0
9 libsystem_pthread.dylib 0x000000018b53ed84 thread_start + 4
Thread 1 crashed with ARM Thread State (64-bit):
x0: 0x0000000000000000 x1: 0x0000000000000000 x2: 0x0000000000000000 x3: 0x00000001700f8c37
x4: 0x000000018aed3b07 x5: 0x000000016de9a850 x6: 0x000000000000006e x7: 0xffffffffffffffec
x8: 0x000000000c000000 x9: 0x0000000004000000 x10: 0x000000000000000b x11: 0x000000000000000b
x12: 0x0000000000000010 x13: 0x000000018c6c9c0e x14: 0x0000030000000300 x15: 0x0000000000000000
x16: 0x0000000000000148 x17: 0x0000000000000000 x18: 0x0000000000000000 x19: 0x0000000000000006
x20: 0x000000016de9b000 x21: 0x000000016de9a850 x22: 0x00000001700ff380 x23: 0x0000000000000004
x24: 0x00000001b1ebd400 x25: 0x0000000000000000 x26: 0x00000001b1ebd400 x27: 0x000000016de9b0e0
x28: 0x0000000000000000 fp: 0x000000016de9a7b0 lr: 0x000000018b543334
sp: 0x000000016de9a790 pc: 0x000000018b479014 cpsr: 0x00000000
最佳答案
我建议仔细检查您没有与 UIAlertController(或任何其他 UIKit API)在主线程(又名 Thread 0 上面)。许多 UIKit API 被设计为仅在主线程中使用。
值得注意的是，崩溃发生在 线程 1 上……
如果您有疑问，请用以下内容结束调用:
DispatchQueue.main.async {
// Call UIAlertController code here...
}
关于ios - 解读iOS崩溃日志与-[UIApplication _cachedSystemAnimationFenceCreatingIfNecessary :]，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/43873503/