ios - 应用程序启动时令人费解的崩溃

Question

我的许多用户在以下堆栈跟踪中获得了崩溃描述。
如您所见，如果我们不考虑第28行的标准主调用，它似乎是在应用程序启动时发生的，并且它不涉及我们的任何方法。
我不知道如何解决此错误，因为我无法重现它，并且下面的堆栈跟踪对我没有帮助。

该错误仅出现在iOS9(93％的iOS9.2、4％的iOS 9.1.0等)上。
也许有人知道在这种情况下该怎么办？

Thread : Crashed: com.apple.main-thread
0  libobjc.A.dylib                0x180911bd0 objc_msgSend + 16
1  Foundation                     0x181b7b5f4 -[NSObject(NSKeyValueObservingPrivate) _changeValueForKey:key:key:usingBlock:] + 372
2  Foundation                     0x181c2430c _NSSetPointValueAndNotify + 284
3  UIKit                          0x18608e798 -[UIView(Geometry) _applyISEngineLayoutValues] + 656
4  UIKit                          0x185f9b458 -[UIView(Geometry) _resizeWithOldSuperviewSize:] + 136
5  CoreFoundation                 0x181188370 __53-[__NSArrayM enumerateObjectsWithOptions:usingBlock:]_block_invoke + 132
6  CoreFoundation                 0x181188268 -[__NSArrayM enumerateObjectsWithOptions:usingBlock:] + 308
7  UIKit                          0x185f89f8c -[UIView(Geometry) resizeSubviewsWithOldSize:] + 148
8  UIKit                          0x18608e8e0 -[UIView(AdditionalLayoutSupport) _is_layout] + 128
9  UIKit                          0x1862931f0 -[UIView(Hierarchy) _updateConstraintsAsNecessaryAndApplyLayoutFromEngine] + 756
10 UIKit                          0x185f7f778 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 656
11 QuartzCore                     0x18398eb2c -[CALayer layoutSublayers] + 148
12 QuartzCore                     0x183989738 CA::Layer::layout_if_needed(CA::Transaction*) + 292
13 QuartzCore                     0x1839895f8 CA::Layer::layout_and_display_if_needed(CA::Transaction*) + 32
14 QuartzCore                     0x183988c94 CA::Context::commit_transaction(CA::Transaction*) + 252
15 QuartzCore                     0x1839889dc CA::Transaction::commit() + 512
16 QuartzCore                     0x1839820cc CA::Transaction::observer_callback(__CFRunLoopObserver*, unsigned long, void*) + 80
17 CoreFoundation                 0x181248588 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 32
18 CoreFoundation                 0x18124632c __CFRunLoopDoObservers + 372
19 CoreFoundation                 0x18124675c __CFRunLoopRun + 928
20 CoreFoundation                 0x181175680 CFRunLoopRunSpecific + 384
21 GraphicsServices               0x182684088 GSEventRunModal + 180
22 UIKit                          0x185fecd90 UIApplicationMain + 204
23 once                           0x1000f0f00 main (main.m:14)
24 libdispatch.dylib              0x180d168b8 (Missing)

作为附加信息，我正在使用AFNetworking。这是不会崩溃的AFNetworking线程堆栈跟踪:

Thread : AFNetworking
0  libsystem_kernel.dylib         0x180e194bc mach_msg_trap + 8
1  libsystem_kernel.dylib         0x180e19338 mach_msg + 72
2  CoreFoundation                 0x181248ac0 __CFRunLoopServiceMachPort + 196
3  CoreFoundation                 0x1812467c4 __CFRunLoopRun + 1032
4  CoreFoundation                 0x181175680 CFRunLoopRunSpecific + 384
5  Foundation                     0x181b6d21c -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 308
6  Foundation                     0x181bc2874 -[NSRunLoop(NSRunLoop) run] + 88
7  once                           0x1001ddf9c +[AFURLConnectionOperation networkRequestThreadEntryPoint:] (AFURLConnectionOperation.m:169)
8  Foundation                     0x181c53c40 __NSThread__start__ + 1000
9  libsystem_pthread.dylib        0x180efbb28 _pthread_body + 156

也许可以帮上忙。
感谢您的帮助!

Answer 1

我在SO中找到了另一个条目，该条目与您的堆栈非常相似。解决方案涉及在 subview 中删除setTranslatesAutoresizingMaskIntoConstraints:NO。

issue with reentering of view with [UIView(Geometry) _applyISEngineLayoutValues] in iOS8 but not iOS7

在应用程序启动时，如果您具有xib / storyboard，则只能是您的主 View Controller 或launchScreen。