当我旋转手机时，我的应用似乎有时会崩溃。 ViewControllerA有一个UISearchDisplayController。 ViewControllerA将ViewControllerB推送到导航堆栈。
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x00000000, 0x00000000
Crashed Thread: 0
Thread 0 Crashed:
0 libSystem.B.dylib 0x000791d0 __kill + 8
1 libSystem.B.dylib 0x000791c0 kill + 4
2 libSystem.B.dylib 0x000791b2 raise + 10
3 libSystem.B.dylib 0x0008d6fa abort + 50
4 libstdc++.6.dylib 0x00044a20 __gnu_cxx::__verbose_terminate_handler() + 376
5 libobjc.A.dylib 0x000059ec _objc_terminate + 104
6 libstdc++.6.dylib 0x00042df2 __cxxabiv1::__terminate(void (*)()) + 46
7 libstdc++.6.dylib 0x00042e46 std::terminate() + 10
8 libstdc++.6.dylib 0x00042f16 __cxa_throw + 78
9 libobjc.A.dylib 0x000048cc objc_exception_throw + 64
10 CoreFoundation 0x0009fa70 -[NSObject(NSObject) doesNotRecognizeSelector:] + 96
11 CoreFoundation 0x0009ef0e ___forwarding___ + 502
12 CoreFoundation 0x00031678 _CF_forwarding_prep_0 + 40
13 UIKit 0x00148194 -[UISearchDisplayController windowWillAnimateRotation:] + 92
14 Foundation 0x00018fb0 _nsnote_callback + 136
15 CoreFoundation 0x00069e6c __CFXNotificationPost_old + 396
16 CoreFoundation 0x0001a374 _CFXNotificationPostNotification + 112
17 Foundation 0x000040bc -[NSNotificationCenter postNotificationName:object:userInfo:] + 64
18 UIKit 0x000ed5d0 -[UIWindow _setRotatableClient:toOrientation:duration:force:] + 3108
19 UIKit 0x000eee6c -[UIWindow _setRotatableViewOrientation:duration:force:] + 44
20 UIKit 0x0007763c -[UIWindow _updateToInterfaceOrientation:duration:force:] + 68
21 UIKit 0x000775b6 -[UIWindow _updateInterfaceOrientationFromDeviceOrientation:] + 106
22 UIKit 0x00077506 -[UIWindow _handleDeviceOrientationChange:] + 82
23 Foundation 0x00018fb0 _nsnote_callback + 136
24 CoreFoundation 0x00069e6c __CFXNotificationPost_old + 396
25 CoreFoundation 0x0001a374 _CFXNotificationPostNotification + 112
26 Foundation 0x000040bc -[NSNotificationCenter postNotificationName:object:userInfo:] + 64
27 UIKit 0x00040582 -[UIDevice setOrientation:animated:] + 138
28 UIKit 0x0005d670 -[UIApplication handleEvent:withNewEvent:] + 2732
29 UIKit 0x0005ca56 -[UIApplication sendEvent:] + 38
30 UIKit 0x0005c500 _UIApplicationHandleEvent + 5016
31 GraphicsServices 0x00004140 PurpleEventCallback + 660
32 CoreFoundation 0x00071aa4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 20
33 CoreFoundation 0x00073848 __CFRunLoopDoSource1 + 160
34 CoreFoundation 0x00074626 __CFRunLoopRun + 514
35 CoreFoundation 0x0001d8e4 CFRunLoopRunSpecific + 224
36 CoreFoundation 0x0001d7ec CFRunLoopRunInMode + 52
37 GraphicsServices 0x000036e8 GSEventRunModal + 108
38 GraphicsServices 0x00003794 GSEventRun + 56
39 UIKit 0x000062a0 -[UIApplication _run] + 396
40 UIKit 0x00004e10 UIApplicationMain + 664
41 StockTwits 0x00002d58 0x1000 + 7512
42 StockTwits 0x00002d28 0x1000 + 7464
Thread 1:
0 libSystem.B.dylib 0x0002dc4c kevent + 24
1 libSystem.B.dylib 0x000d6e44 _dispatch_mgr_invoke + 88
2 libSystem.B.dylib 0x000d6894 _dispatch_queue_invoke + 96
3 libSystem.B.dylib 0x000d6a34 _dispatch_worker_thread2 + 120
4 libSystem.B.dylib 0x0007ad82 _pthread_wqthread + 258
5 libSystem.B.dylib 0x00073fcc start_wqthread + 0
Thread 2:
0 libSystem.B.dylib 0x00001658 mach_msg_trap + 20
1 libSystem.B.dylib 0x00003724 mach_msg + 44
2 CoreFoundation 0x000722c8 __CFRunLoopServiceMachPort + 88
3 CoreFoundation 0x00074582 __CFRunLoopRun + 350
4 CoreFoundation 0x0001d8e4 CFRunLoopRunSpecific + 224
5 CoreFoundation 0x0001d7ec CFRunLoopRunInMode + 52
6 WebCore 0x00003056 RunWebThread(void*) + 362
7 libSystem.B.dylib 0x0007a986 _pthread_start + 242
8 libSystem.B.dylib 0x000700e4 thread_start + 0
Thread 3:
0 libSystem.B.dylib 0x00001658 mach_msg_trap + 20
1 libSystem.B.dylib 0x00003724 mach_msg + 44
2 CoreFoundation 0x000722c8 __CFRunLoopServiceMachPort + 88
3 CoreFoundation 0x00074582 __CFRunLoopRun + 350
4 CoreFoundation 0x0001d8e4 CFRunLoopRunSpecific + 224
5 CoreFoundation 0x0001d7ec CFRunLoopRunInMode + 52
6 Foundation 0x0003b71e +[NSURLConnection(NSURLConnectionReallyInternal) _resourceLoadLoop:] + 206
7 Foundation 0x0000bc96 -[NSThread main] + 38
8 Foundation 0x000909da __NSThread__main__ + 966
9 libSystem.B.dylib 0x0007a986 _pthread_start + 242
10 libSystem.B.dylib 0x000700e4 thread_start + 0
Thread 4:
0 libSystem.B.dylib 0x00025a20 select$DARWIN_EXTSN + 20
1 CoreFoundation 0x00077e70 __CFSocketManager + 540
2 libSystem.B.dylib 0x0007a986 _pthread_start + 242
3 libSystem.B.dylib 0x000700e4 thread_start + 0
Thread 5:
0 libSystem.B.dylib 0x0007b85c __workq_kernreturn + 8
1 libSystem.B.dylib 0x0007ae98 _pthread_wqthread + 536
2 libSystem.B.dylib 0x00073fcc start_wqthread + 0
Thread 0 crashed with ARM Thread State:
r0: 0x00000000 r1: 0x00000000 r2: 0x00000001 r3: 0x3e90724c
r4: 0x00000006 r5: 0x09ad4aec r6: 0x2fffda84 r7: 0x2fffda94
r8: 0x00000000 r9: 0x00000065 r10: 0x088ca2d0 r11: 0x00000000
ip: 0x00000025 sp: 0x2fffda94 lr: 0x352741c7 pc: 0x352741d0
cpsr: 0x080f0010
答案 0 :(得分：0)
您正在调用未实现的选择器。
最好的挖掘方法是切换到调试模式，实际运行时附带调试器。它应该立即停在正确的行，或者在控制台上提供信息。