我的应用中有一个崩溃的错误。
它发生在同一个地方，但不是所有时间。我没有发现问题。
以下是两个崩溃日志：
第二次碰撞日志//////////////// ///////////////////Incident Identifier: EB73AE61-00FB-4282-8F1D-B8ECEC19E02D CrashReporter Key: 6f005b28e796b18f3ab2687bb364b2be1eb137cd Hardware Model: iPhone5,2 Path: /var/mobile/Applications/BF2F1016-8C00-40A3-BB75-0933F53741F0/*******.app/****** Version: ??? (???) Code Type: ARM (Native) Parent Process: launchd [1] Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x0000000000000000, 0x0000000000000000 Crashed Thread: 0 Last Exception Backtrace: 0 CoreFoundation 0x312d13e2 __exceptionPreprocess + 158 1 libobjc.A.dylib 0x38fc295e objc_exception_throw + 26 2 CoreFoundation 0x312d1302 +[NSException raise:format:] + 102 3 QuartzCore 0x32e8e106 CA::Layer::set_position(CA::Vec2<double> const&, bool) + 206 4 QuartzCore 0x32e8e02e -[CALayer setPosition:] + 46 5 QuartzCore 0x32e8dfc2 -[CALayer setFrame:] + 554 6 UIKit 0x330e1bd2 -[UIView(Geometry) setFrame:] + 230 7 UIKit 0x330e18fc -[UIImageView _setViewGeometry:forMetric:] + 180 8 UIKit 0x330e183a -[UIImageView setFrame:] + 42 9 etapes 0x0006de1c 0x5c000 + 73244 10 UIKit 0x33203136 -[UIScrollView _endPanWithEvent:] + 3694 11 UIKit 0x3321c520 -[UIScrollView handlePan:] + 120 12 UIKit 0x331fdc5c _UIGestureRecognizerSendActions + 124 13 UIKit 0x331c539c -[UIGestureRecognizer _updateGestureWithEvent:] + 388 14 UIKit 0x333b215e ___UIGestureRecognizerUpdate_block_invoke_0543 + 42 15 UIKit 0x330e987e _UIGestureRecognizerRemoveObjectsFromArrayAndApplyBlocks + 214 16 UIKit 0x330e82c8 _UIGestureRecognizerUpdate + 1160 17 UIKit 0x330f31e2 -[UIWindow _sendGesturesForEvent:] + 762 18 UIKit 0x330f2dae -[UIWindow sendEvent:] + 86 19 UIKit 0x330e08dc -[UIApplication sendEvent:] + 376 20 UIKit 0x330e01ea _UIApplicationHandleEvent + 6194 21 GraphicsServices 0x34df75f2 _PurpleEventCallback + 586 22 GraphicsServices 0x34df7222 PurpleEventCallback + 30 23 CoreFoundation 0x312a63e2 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 30 24 CoreFoundation 0x312a6386 __CFRunLoopDoSource1 + 134 25 CoreFoundation 0x312a520a __CFRunLoopRun + 1378 26 CoreFoundation 0x31218238 CFRunLoopRunSpecific + 352 27 CoreFoundation 0x312180c4 CFRunLoopRunInMode + 100 28 GraphicsServices 0x34df6336 GSEventRunModal + 70 29 UIKit 0x331342b4 UIApplicationMain + 1116 30 etapes 0x0005e15e 0x5c000 + 8542 31 etapes 0x0005e114 0x5c000 + 8468
Incident Identifier: 4FE03135-D442-4CEA-B230-8322647262EE CrashReporter Key: 6f005b28e796b18f3ab2687bb364b2be1eb137cd Hardware Model: iPhone5,2 Process: etapes [2916] Path: /var/mobile/Applications/BF2F1016-8C00-40A3-BB75-0933F53741F0/******.app/**** Version: ??? (???) Code Type: ARM (Native) Parent Process: launchd [1] Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x00000064 Crashed Thread: 0 Thread 0 name: Dispatch queue: com.apple.main-thread Thread 0 Crashed: 0 UIKit 0x33df7b06 -[UIView(CALayerDelegate) actionForLayer:forKey:] + 138 1 QuartzCore 0x33ba7786 -[CALayer actionForKey:] + 70 2 QuartzCore 0x33ba7732 _ZL12actionForKeyP7CALayerPN2CA11TransactionEP8NSString + 54 3 QuartzCore 0x33ba7626 CA::Layer::begin_change(CA::Transaction*, unsigned int, objc_object*&) + 126 4 QuartzCore 0x33ba2322 CA::Layer::setter(unsigned int, _CAValueType, void const*) + 178 5 QuartzCore 0x33bce782 -[CALayer setBackgroundColor:] + 30 6 UIKit 0x33e0ef50 -[UIView(Internal) _setBackgroundCGColor:withSystemColorName:] + 1016 7 etapes 0x000fc8d2 0xdd000 + 129234 8 etapes 0x000f8c6a 0xdd000 + 113770 9 CoreFoundation 0x31fe9ad0 __invoking___ + 64 10 CoreFoundation 0x31f4128a -[NSInvocation invoke] + 286 11 Foundation 0x328eaf60 -[NSInvocationOperation main] + 108 12 Foundation 0x32874a84 -[__NSOperationInternal start] + 836 13 Foundation 0x328ecfe2 __block_global_6 + 98 14 libdispatch.dylib 0x3a0f1790 _dispatch_call_block_and_release + 8 15 libdispatch.dylib 0x3a0f15d8 _dispatch_client_callout + 20 16 libdispatch.dylib 0x3a0f4e40 _dispatch_main_queue_callback_4CF + 224 17 CoreFoundation 0x31fba1ac __CFRunLoopRun + 1284 18 CoreFoundation 0x31f2d238 CFRunLoopRunSpecific + 352 19 CoreFoundation 0x31f2d0c4 CFRunLoopRunInMode + 100 20 GraphicsServices 0x35b0b336 GSEventRunModal + 70 21 UIKit 0x33e492b4 UIApplicationMain + 1116 22 etapes 0x000df15e 0xdd000 + 8542 23 etapes 0x000df114 0xdd000 + 8468
如果您想了解更多细节，我可以使用！
经过研究，这是代码问题：
self.imageviewFondArticle.frame = CGRectMake((-((_imageviewFondArticle.frame.size.height*imageRatio)-320)/2),0, _imageviewFondArticle.frame.size.height*imageRatio, _imageviewFondArticle.frame.size.height);
答案 0 :(得分：1)
首先，CALayer的“框架”是根据Apple's docs的“计算属性”。您可能想要设置bounds，anchorPoint或position属性。 （相比之下，UIView的框架可以设置和动画。）
其次，我来到这个帖子'因为我遇到了这样的崩溃。它发生在我设置CALayer的位置属性时。原来，抛出的异常是无效位置 - 其中一个坐标是NaN。我通过在@ try- @ catch块中包装“layer.position = pos”找到了这个。修复无效位置的根本原因解决了我的问题。基于此，我猜你有一个无效的“imageRatio”值。