我正在调查Fabric中的崩溃报告，我不知道是什么导致了它。堆栈跟踪不是特别有用，但它看起来应用程序正准备在后台暂停。这是崩溃消息：
崩溃：com.apple.main-thread
EXC_BAD_ACCESS KERN_INVALID_ADDRESS 0x444444444444445
这是堆栈跟踪：
Crashed: com.apple.main-thread
0 QuartzCore 0x18680fdf0 CALayerGetLayer + 12
1 QuartzCore 0x186810540 CA::Context::invalidate() + 68
2 QuartzCore 0x1868104cc -[CAContextImpl dealloc] + 64
3 UIKit 0x188f04bc4 -[UIWindow _destroyContext] + 324
4 UIKit 0x188f049e4 +[UIWindow _prepareWindowsForAppSuspend] + 172
5 UIKit 0x188f0491c -[UIApplication _destroyContextsAndNotifySpringBoard] + 28
6 UIKit 0x189124244 __102-[UIApplication _handleApplicationDeactivationWithScene:shouldForceExit:transitionContext:completion:]_block_invoke_2 + 240
7 UIKit 0x1891280f0 __65-[UIApplication _performSnapshotsWithAction:forScene:completion:]_block_invoke2283 + 148
8 FrontBoardServices 0x1856c9fc0 -[FBSSceneSnapshotAction _finishAllRequests] + 80
9 FrontBoardServices 0x1856c9d38 -[FBSSceneSnapshotAction executeRequestsWithHandler:completionHandler:expirationHandler:] + 224
10 UIKit 0x189127ee0 __65-[UIApplication _performSnapshotsWithAction:forScene:completion:]_block_invoke + 272
11 UIKit 0x1891274e0 -[UIApplication _beginSnapshotSessionForScene:withSnapshotBlock:] + 900
12 UIKit 0x189127d7c -[UIApplication _performSnapshotsWithAction:forScene:completion:] + 560
13 UIKit 0x189127ad0 -[UIApplication _handleSnapshotAction:forScene:completion:] + 156
14 UIKit 0x1891243dc __102-[UIApplication _handleApplicationDeactivationWithScene:shouldForceExit:transitionContext:completion:]_block_invoke2031 + 272
15 UIKit 0x189123ffc __102-[UIApplication _handleApplicationDeactivationWithScene:shouldForceExit:transitionContext:completion:]_block_invoke2017 + 1040
16 UIKit 0x189126fd8 _runAfterCACommitDeferredBlocks + 292
17 UIKit 0x189134990 _cleanUpAfterCAFlushAndRunDeferredBlocks + 92
18 UIKit 0x188e664a4 _afterCACommitHandler + 96
19 CoreFoundation 0x183ce07b0 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 32
20 CoreFoundation 0x183cde554 __CFRunLoopDoObservers + 372
21 CoreFoundation 0x183cde984 __CFRunLoopRun + 928
22 CoreFoundation 0x183c08d10 CFRunLoopRunSpecific + 384
23 GraphicsServices 0x1854f0088 GSEventRunModal + 180
24 UIKit 0x188eddf70 UIApplicationMain + 204
25 HDWR 0x1000706dc main (AppDelegate.swift:37)
26 libdispatch.dylib 0x1837a68b8 (Missing)
知道如何才能深入了解这一点吗？
这看起来好像是UIKit或QuartzCore中的错误，还是更有可能成为我们自己代码中的错误？
答案 0 :(得分：0)
崩溃：com.apple.main-thread
EXC_BAD_ACCESS KERN_INVALID_ADDRESS 0x444444444444445
我认为你使用的是没有被侮辱的nil对象