当我更改设备方向时，我正在使用我正在处理的应用程序异常终止（崩溃）。我经常无法重现它（当我旋转的时候不会发生这种情况，假设有机会在0.01％左右），但这是一个严重的问题。我附上了崩溃报告的重要部分。
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x6563616e
Crashed Thread: 0
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 libobjc.A.dylib 0x3233a5b0 objc_msgSend + 16
1 UIKit 0x36297b82 -[UISectionRowData refreshWithSection:tableView:tableViewRowData:] + 1546
2 UIKit 0x3628301e -[UITableViewRowData rectForFooterInSection:] + 310
3 UIKit 0x3628358c -[UITableViewRowData heightForTable] + 48
4 UIKit 0x36283400 -[UITableView(_UITableViewPrivate) _updateContentSize] + 324
5 UIKit 0x362cc8b4 -[UITableView _rectChangedWithNewSize:oldSize:] + 252
6 UIKit 0x362cc544 -[UITableView setFrame:] + 220
7 UIKit 0x362c59c4 -[UIView(Geometry) _applyAutoresizingMaskWithOldSuperviewSize:] + 644
8 UIKit 0x362c572e -[UIView(Geometry) _resizeWithOldSuperviewSize:] + 262
9 UIKit 0x3644eb2a -[UIScrollView _resizeWithOldSuperviewSize:] + 38
10 CoreFoundation 0x35b63aec __NSArrayChunkIterate + 360
11 CoreFoundation 0x35b5ca74 __NSArrayEnumerate + 608
12 CoreFoundation 0x35abeb66 -[NSArray enumerateObjectsWithOptions:usingBlock:] + 58
13 UIKit 0x3627e09e -[UIView(Geometry) resizeSubviewsWithOldSize:] + 114
14 UIKit 0x36263ba2 -[UIView(Geometry) setFrame:] + 414
15 UIKit 0x362c59c4 -[UIView(Geometry) _applyAutoresizingMaskWithOldSuperviewSize:] + 644
16 UIKit 0x362c572e -[UIView(Geometry) _resizeWithOldSuperviewSize:] + 262
17 CoreFoundation 0x35b63aec __NSArrayChunkIterate + 360
18 CoreFoundation 0x35b5ca74 __NSArrayEnumerate + 608
19 CoreFoundation 0x35abeb66 -[NSArray enumerateObjectsWithOptions:usingBlock:] + 58
20 UIKit 0x3627e09e -[UIView(Geometry) resizeSubviewsWithOldSize:] + 114
21 UIKit 0x36263ba2 -[UIView(Geometry) setFrame:] + 414
22 UIKit 0x362a6dc0 -[UIViewControllerWrapperView setFrame:] + 48
23 UIKit 0x362c59c4 -[UIView(Geometry) _applyAutoresizingMaskWithOldSuperviewSize:] + 644
24 UIKit 0x362c572e -[UIView(Geometry) _resizeWithOldSuperviewSize:] + 262
25 CoreFoundation 0x35b63aec __NSArrayChunkIterate + 360
26 CoreFoundation 0x35b5ca74 __NSArrayEnumerate + 608
27 CoreFoundation 0x35abeb66 -[NSArray enumerateObjectsWithOptions:usingBlock:] + 58
28 UIKit 0x3627e09e -[UIView(Geometry) resizeSubviewsWithOldSize:] + 114
29 UIKit 0x36263ba2 -[UIView(Geometry) setFrame:] + 414
30 UIKit 0x362c59c4 -[UIView(Geometry) _applyAutoresizingMaskWithOldSuperviewSize:] + 644
31 UIKit 0x362c572e -[UIView(Geometry) _resizeWithOldSuperviewSize:] + 262
32 CoreFoundation 0x35b63aec __NSArrayChunkIterate + 360
33 CoreFoundation 0x35b5ca74 __NSArrayEnumerate + 608
34 CoreFoundation 0x35abeb66 -[NSArray enumerateObjectsWithOptions:usingBlock:] + 58
35 UIKit 0x3627e09e -[UIView(Geometry) resizeSubviewsWithOldSize:] + 114
36 UIKit 0x362c64ae -[UIView(Geometry) setBounds:] + 430
37 UIKit 0x3634ff32 -[UILayoutContainerView setBounds:] + 58
38 UIKit 0x363edd88 -[UIViewController window:willAnimateRotationToInterfaceOrientation:duration:] + 460
39 UIKit 0x3630e2b0 -[UIWindow _setRotatableClient:toOrientation:updateStatusBar:duration:force:isRotating:] + 3616
40 UIKit 0x3630d482 -[UIWindow _setRotatableClient:toOrientation:updateStatusBar:duration:force:] + 42
41 UIKit 0x3630d40c -[UIWindow _setRotatableViewOrientation:duration:force:] + 64
42 UIKit 0x3644317c __57-[UIWindow _updateToInterfaceOrientation:duration:force:]_block_invoke_0 + 100
43 UIKit 0x362cb676 -[UIWindow _updateToInterfaceOrientation:duration:force:] + 214
44 UIKit 0x362d4d20 -[UIWindow _updateInterfaceOrientationFromDeviceOrientation:] + 176
45 CoreFoundation 0x35ab9034 _CFXNotificationPost + 1424
46 Foundation 0x3721bd8c -[NSNotificationCenter postNotificationName:object:userInfo:] + 68
47 UIKit 0x36268c60 -[UIDevice setOrientation:animated:] + 292
48 UIKit 0x362633d6 -[UIApplication handleEvent:withNewEvent:] + 2954
49 UIKit 0x362626c8 -[UIApplication sendEvent:] + 68
50 UIKit 0x36262116 _UIApplicationHandleEvent + 6150
51 GraphicsServices 0x318885a0 _PurpleEventCallback + 588
52 GraphicsServices 0x318881ce PurpleEventCallback + 30
53 CoreFoundation 0x35b3d170 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 32
54 CoreFoundation 0x35b3d112 __CFRunLoopDoSource1 + 134
55 CoreFoundation 0x35b3bf94 __CFRunLoopRun + 1380
56 CoreFoundation 0x35aaeeb8 CFRunLoopRunSpecific + 352
57 CoreFoundation 0x35aaed44 CFRunLoopRunInMode + 100
58 GraphicsServices 0x318872e6 GSEventRunModal + 70
59 UIKit 0x362b62f4 UIApplicationMain + 1116
既不涉及线程活动，也不定制ViewControllers。而且，我正在使用ARC。
我想知道理由的确切原因或在自动旋转发生时会导致崩溃的可能性。
提前致谢...
答案 0 :(得分：1)
我认为app会向解除分配的对象发送消息。是的，即使您使用ARC，有时也会发生这种情况。要调试它，您需要使用Instruments（Zombies）运行您的应用程序并尝试重现该错误。
答案 1 :(得分：0)
启用Zombies并使用Instruments（Zombies）调试App确实有助于找到错误。但要修复错误或避免将来出现同样的错误非常重要。
在我的代码中，我有一个像这样的实现......
- (void)someMethod {
[self.navigationController pushViewController:[DestinationViewController new] animated:YES];
}
我们没有直接持有DestinationViewController的强引用。但是改变......
@property (strong, nonatomic) DestinationViewController *dvc;
// ....
- (void)someMethod {
self.dvc = [DestinationViewController new];
[self.navigationController pushViewController:self.dvc animated:YES];
}
帮助避免了这个错误。我无法解释为什么...... ???但我希望更改设备方向可以解除DestinationViewController，但可以通过保持强引用来避免这种情况。