我在iOS 8.4上运行iPhone 6 +（仅）时遇到了奇怪的崩溃。旋转设备时会发生崩溃。但我的定向方法看起来不错。崩溃非常不一致，没有具体的步骤来重现它。
以下是我的崩溃日志：
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Triggered by Thread: 12
Last Exception Backtrace:
0 CoreFoundation 0x1848ac2d8 __exceptionPreprocess + 132
1 libobjc.A.dylib 0x1965800e4 objc_exception_throw + 60
2 CoreFoundation 0x184792f70 -[__NSPlaceholderArray initWithObjects:count:] + 412
3 CoreFoundation 0x18479f200 +[NSArray arrayWithObjects:count:] + 60
4 UIKit 0x1895e9a84 _UIViewTopDownSubtreeTraversal + 148
5 UIKit 0x189645ab8 -[UIViewController _replaceViewControllerInPresentationHierarchy:] + 164
6 UIKit 0x1896459dc -[UIViewController _adaptedPresentationControllerForTraitCollection:withTransitionCoordinator:] + 564
7 UIKit 0x18963001c -[UIPresentationController _sharedParent:willTransitionToTraitCollection:withTransitionCoordinator:] + 312
8 UIKit 0x18962febc -[UIPresentationController _window:willTransitionToTraitCollection:withTransitionCoordinator:] + 44
9 UIKit 0x18963faf0 -[UIViewController _window:willTransitionToTraitCollection:withTransitionCoordinator:] + 316
10 UIKit 0x18963faf0 -[UIViewController _window:willTransitionToTraitCollection:withTransitionCoordinator:] + 316
11 UIKit 0x1895e23c4 -[UIWindow _rotateToBounds:withAnimator:transitionContext:] + 340
12 UIKit 0x1895e340c -[UIWindow _rotateWindowToOrientation:updateStatusBar:duration:skipCallbacks:] + 1260
13 UIKit 0x1895e3b0c -[UIWindow _setRotatableClient:toOrientation:applyTransformToWindow:updateStatusBar:duration:force:isRotating:] + 360
14 UIKit 0x1893a2c30 -[UIWindow _setRotatableViewOrientation:updateStatusBar:duration:force:] + 144
15 UIKit 0x189a19c0c -[_UIFullscreenPresentationController _placeCounterRotationViewWithView:inWindow:fromOrientation:toOrientation:force:] + 296
16 UIKit 0x189a19a70 -[_UIFullscreenPresentationController _adjustOrientationIfNecessaryInWindow:forViewController:preservingViewController:] + 600
17 UIKit 0x18962b3a8 -[UIPresentationController _dismissWithAnimationController:interactionController:target:didEndSelector:] + 444
18 UIKit 0x189332b00 +[UIView(Animation) performWithoutAnimation:] + 88
19 UIKit 0x18964983c -[UIViewController _dismissViewControllerWithAnimationController:interactionController:completion:] + 624
20 UIKit 0x189332b00 +[UIView(Animation) performWithoutAnimation:] + 88
21 UIKit 0x18944c34c -[UIViewController _dismissViewControllerWithTransition:from:completion:] + 936
22 UIKit 0x1893f4388 -[UIViewController dismissViewControllerWithTransition:completion:] + 1036
23 UIKit 0x182cac88c -[UIViewControllerAccessibility dismissViewControllerWithTransition:completion:] + 128
24 UIKit 0x1893f3f1c -[UIViewController dismissViewControllerAnimated:completion:] + 252
25 UIKit 0x182cac668 -[UIViewControllerAccessibility dismissViewControllerAnimated:completion:] + 128
:
:
Thread 12 Crashed:
0 libsystem_kernel.dylib 0x0000000196d43c78 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000196ddd2d8 _pthread_wqthread + 988
2 libsystem_pthread.dylib 0x0000000196ddceec start_wqthread + 0
非常感谢任何帮助。
谢谢！