"화면 잠금"을 실행하면 ios 응용 프로그램이 충돌 함

Question

탭 표시 줄 응용 프로그램에 문제가 있습니다. 다 잘 작동하지만, 만약 내가 시뮬레이터 명령 "잠금 화면"디버거 콘솔에 보낼 응용 프로그램이 추락했다. 그것은 무엇 일 수 있는가?

디버거 메시지 : 어떤 이유

GNU gdb 6.3.50-20050815 (Apple version gdb-1518) (Sat Feb 12 02:52:12 UTC 2011) 
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This GDB was configured as "x86_64-apple-darwin".Attaching to process 407. 
2011-03-16 23:35:59.084 Smokie[407:207] -[OverviewController applicationWillResignActive:]: unrecognized selector sent to instance 0x4e20650 
2011-03-16 23:35:59.088 Smokie[407:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[OverviewController applicationWillResignActive:]: unrecognized selector sent to instance 0x4e20650' 
*** Call stack at first throw: 
(
• 0 CoreFoundation      0x00dcb5a9 __exceptionPreprocess + 185 
• 1 libobjc.A.dylib      0x00f1f313 objc_exception_throw + 44 
• 2 CoreFoundation      0x00dcd0bb -[NSObject(NSObject) doesNotRecognizeSelector:] + 187 
• 3 CoreFoundation      0x00d3c966 ___forwarding___ + 966 
• 4 CoreFoundation      0x00d3c522 _CF_forwarding_prep_0 + 50 
• 5 Foundation       0x00025669 _nsnote_callback + 145 
• 6 CoreFoundation      0x00da39f9 __CFXNotificationPost_old + 745 
• 7 CoreFoundation      0x00d2293a _CFXNotificationPostNotification + 186 
• 8 Foundation       0x0001b20e -[NSNotificationCenter postNotificationName:object:userInfo:] + 134 
• 9 UIKit        0x002bc0a8 -[UIApplication _setActivated:] + 334 
• 10 UIKit        0x002bf905 -[UIApplication _handleApplicationSuspend:eventInfo:] + 292 
• 11 UIKit        0x002c9039 -[UIApplication handleEvent:withNewEvent:] + 4127 
• 12 UIKit        0x002c0abf -[UIApplication sendEvent:] + 71 
• 13 UIKit        0x002c5f2e _UIApplicationHandleEvent + 7576 
• 14 GraphicsServices     0x01723992 PurpleEventCallback + 1550 
• 15 CoreFoundation      0x00dac944 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52 
• 16 CoreFoundation      0x00d0ccf7 __CFRunLoopDoSource1 + 215 
• 17 CoreFoundation      0x00d09f83 __CFRunLoopRun + 979 
• 18 CoreFoundation      0x00d09840 CFRunLoopRunSpecific + 208 
• 19 CoreFoundation      0x00d09761 CFRunLoopRunInMode + 97 
• 20 GraphicsServices     0x017221c4 GSEventRunModal + 217 
• 21 GraphicsServices     0x01722289 GSEventRun + 115 
• 22 UIKit        0x002c9c93 UIApplicationMain + 1160 
• 23 Smokie        0x00001c30 main + 102 
• 24 Smokie        0x00001bc1 start + 53 
) 
terminate called after throwing an instance of 'NSException' 
sharedlibrary apply-load-rules all 
Current language: auto; currently objective-c 
(gdb) 

Answer 1

질문에서 불분명는 OverviewController의 인스턴스는 UIApplicationDelegate이 있어야 할 자리에있다. MainWindow xib의 아울렛과 믹스 업할 수 있습니까? Main Windo xib에서 UIApplication 인스턴스의 "대리자"콘센트는 UIApplicationDelegate에 할당되어야합니다. 그럴까요?

이 오류는 OverviewController에서 호출되고 찾을 수없는 applicationWillResignActive : 메소드로 인해 발생합니다. applicationWillResignActive : 응용 프로그램이 잠금 전에 응용 프로그램 대리인에서 호출하는 메서드입니다.