我在基于导航的应用程序中有四个视图。MainView、AddView、ShowView 和 DetailView。MainView 有一个 NSMutableArray。当我单击按钮添加时,我转到 AddView,然后在 MainView 的 NSMutable 数组中添加一个对象。然后我回来并转到 ShowView,它是一个 tableView。从 MainView 我调用 ShowView 的 createList 函数,如下所示:
ShowView *show = [[ShowView alloc] init];
[show createList: self.savedObjectsList];
[self.navigationController pushViewController: show animated: YES];
[runListController release];
在 ShowView createList 中看起来像这样:
- (void) createRunsList: (NSMutableArray *) list{
objList = [list retain];
}
其中 objList 是 ShowView 中的 NSMutableArray。表格视图的每个单元格都会创建 NSMutbaleArray 对象的 DetailView。问题是有时我的应用程序停止工作并且我收到此错误:
2011-10-03 15:35:55.076 RunnoIPhoneApp[2750:707] *** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[NSMutableArray objectAtIndex:]: index 0 beyond bounds for empty array'
*** Call stack at first throw:
(
0 CoreFoundation 0x3399964f __exceptionPreprocess + 114
1 libobjc.A.dylib 0x30b16c5d objc_exception_throw + 24
2 CoreFoundation 0x33904069 -[__NSArrayM objectAtIndex:] + 184
3 RunnoIPhoneApp 0x0000b79f -[PostRunDetailViewController createRunDetail:] + 90
4 RunnoIPhoneApp 0x0000fd2f -[RunListViewController tableView:didSelectRowAtIndexPath:] + 182
5 UIKit 0x3203f51b -[UITableView _selectRowAtIndexPath:animated:scrollPosition:notifyDelegate:] + 662
6 UIKit 0x320a30eb -[UITableView _userSelectRowAtPendingSelectionIndexPath:] + 130
7 Foundation 0x32ba26d5 __NSFireDelayedPerform + 368
8 CoreFoundation 0x33970a47 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 14
9 CoreFoundation 0x33972ecb __CFRunLoopDoTimer + 850
10 CoreFoundation 0x33973845 __CFRunLoopRun + 1088
11 CoreFoundation 0x33903ec3 CFRunLoopRunSpecific + 230
12 CoreFoundation 0x33903dcb CFRunLoopRunInMode + 58
13 GraphicsServices 0x3162e41f GSEventRunModal + 114
14 GraphicsServices 0x3162e4cb GSEventRun + 62
15 UIKit 0x32019d69 -[UIApplication _run] + 404
16 UIKit 0x32017807 UIApplicationMain + 670
17 RunnoIPhoneApp 0x00002553 main + 70
18 RunnoIPhoneApp 0x00002508 start + 40
)
terminate called after throwing an instance of 'NSException'
Program received signal: “SIGABRT”.
warning: Unable to read symbols for /Developer/Platforms/iPhoneOS.platform/DeviceSupport/4.3.5 (8L1)/Symbols/Developer/usr/lib/libXcodeDebuggerSupport.dylib (file not found).
Program received signal: “SIGABRT”.
(gdb)
谁能告诉我为什么会这样?一些第一个对象的 DetailView 工作正常,但随后我收到此错误。提前致谢。