Question

我的标签栏应用程序有问题。一切运作良好，但如果我发送模拟器命令“锁屏”调试器控制台说应用程序崩溃。它能是什么？

调试器消息：

GNU gdb 6.3.50-20050815 (Apple version gdb-1518) (Sat Feb 12 02:52:12 UTC 2011)
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
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Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
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

出于某种原因，从问题中不清楚，概述了一个概念控件的实例应该是UIApplicationDelegate的实例。可能是MainWindow xib中的插座混音？在Main Windo xib中，应将UIApplication实例中的“delegate”插座分配给UIApplicationDelegate。是这样的吗？

我这样说是因为错误是由方法applicationWillResignActive引起的：在OverviewController上被调用而没有找到。 applicationWillResignActive：是应用程序在锁定之前在应用程序委托中调用的方法。

“锁定屏幕”时ios应用程序崩溃

1 个答案: