大佬教程收集整理的这篇文章主要介绍了iOS 9上的自动布局崩溃,禁用了自动布局，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。
我在仅限iPad的应用程序中仅在iOS 9上发生崩溃.它说NSInternalInconsistencyException.
它出现在纵向和横向模式以及许多iPad代(iPad 2,iPad Pro,iPad 4,……)上.
我没有在项目中的任何位置启用自动布局,但它看起来像是自动布局问题.
它很难复制,所以我无法在Xcode上调试它,但我看到有关崩溃分析服务“Crashlytics”的报告.这是来自Crashlytics的堆栈跟踪：
Auto layout internal error. CAnnot find an outgoing row head for incoming head <unkNown var (bug!) with ENGIne as delegate[...] Thread : Fatal Exception: NSInternalInconsistencyException 0 CoreFoundation 0x23d4568b __exceptionPreprocess 1 libobjc.A.dylib 0x356c2e17 objc_exception_throw 2 CoreFoundation 0x23d455d1 -[NSException initWithCoder:] 3 Foundation 0x24a873b3 -[NSISENGIne minimizeConstanTinObjectiveRowWithHead:] 4 Foundation 0x24a86e4d -[NSISENGIne optimize] 5 Foundation 0x24a82a53 -[NSISENGIne withBehaviors:performModifications:] 6 UIKit 0x27e040bb -[UIView(Hierarchy) _postMovedFromSuperview:] 7 UIKit 0x280fb227 __UIViewWasRemovedFromSuperview 8 UIKit 0x27e02ddb -[UIView(Hierarchy) removeFromSuperview] 9 UIKit 0x282e5fa9 -[UIKeyboardPreDictionView setPreDictionViewState:animate:notify:] 10 UIKit 0x281e3787 -[UIKeyboardImpl updatePreDictionView] 11 UIKit 0x27f155e3 -[UIKeyboardImpl finishLayoutChangeWithArguments:] 12 UIKit 0x27e31437 -[UIKeyboardImpl updateLayout] 13 UIKit 0x27e36077 -[UIKeyboardImpl setDelegate:force:] 14 UIKit 0x27e2f6e1 -[UIPeripheralHost(UIKiTinternal) _reloadInputViewsForResponder:] 15 UIKit 0x27e2f20d -[UIResponder(UIResponderInputViewAdditions) reloadInputViews] 16 UIKit 0x27e8d853 -[UIResponder becomeFirstResponder] 17 UIKit 0x27e8db6d -[UIView(Hierarchy) becomeFirstResponder] 18 UIKit 0x27f12289 -[UITextField becomeFirstResponder] 19 UIKit 0x27fbe69f -[UITexTinteractionAssistant(UITexTinteractionAssistant_Internal) setFirstResponderIfNecessary] 20 UIKit 0x27fbdc75 -[UITexTinteractionAssistant(UITexTinteractionAssistant_Internal) oneFingerTap:] 21 UIKit 0x28334e27 _UIGestureRecognizerSendTargetActions 22 UIKit 0x27fa2303 _UIGestureRecognizerSendActions 23 UIKit 0x27e3a7af -[UIGestureRecognizer _updateGestureWithEvent:buttonEvent:] 24 UIKit 0x28335f2f ___UIGestureRecognizerupdate_block_invoke809 25 UIKit 0x27dfc287 _UIGestureRecognizerRemoveObjectsFromArrayAndApplyBlocks 26 UIKit 0x27df9e77 _UIGestureRecognizerupdate 27 UIKit 0x27e386f9 -[UIWindow _sendGesturesForEvent:] 28 UIKit 0x27e37e43 -[UIWindow sendEvent:] 29 UIKit 0x27e097e5 -[UIApplication sendEvent:] 30 UIKit 0x27e07fdf _UIApplicationHandleEventQueue 31 CoreFoundation 0x23d08c3f __CFRUNLOOP_IS_CALLING_OUT_TO_A_sourcE0_PERFORM_FUNCTION__ 32 CoreFoundation 0x23d0882d __CFRunLoopDosources0 33 CoreFoundation 0x23d06b9b __CFRunLoopRun 34 CoreFoundation 0x23c5a249 CFRunLoopRunSpecific 35 CoreFoundation 0x23c5a035 CFRunLoopRunInMode 36 Graphicsservices 0x2cd24ad1 GSEventRunModal 37 UIKit 0x27e6f899 UIApplicationMain 38 Mr Appliance 0xcda7b main (main.m:16) 39 libdyld.dylib 0x35e0e873 start
问题是我不知道代码在哪里发生了.堆栈跟踪不会显示代码中发生崩溃的位置.它只说main.m第16行返回UIApplicationMain(argc,argv,nil,NSStringFromClass([AppDelegate class]));.
在从超级视图中删除一些视图之后会出现异常,并且它确实显示NSISENGIne错误,表明可能已为某些XIB或Storyboard打开了AutoLayout – 否则iOS会在内部使用AutoLayout来处理新布局的排列.
This answer具有几乎相同的堆栈跟踪&指出使用不正确的手势方法处理firstResponder更改和解除键盘的问题.如果你正在做类似的事情(忽略一些视图,编辑UITableView？),可能是错误的方法指向一个不存在的委托？
https://stackoverflow.com/questions/33800918/uitextfield-becomefirstresponder-crashes-the-ios-app-randomly
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