UITableView在同一行被选中两次时崩溃

当我运行应用程序并select一行时，它将一些信息传递给EmployeeInfoPage并正常工作。 当我回来，然后select相同的行。 它在行tableController.empInfo =员工;崩溃。 我得到一个EXC_BAD_ACCESS错误

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{ EmployeeInfoTableView *tableController = [[EmployeeInfoTableView alloc] init]; NSDictionary *employee = [[self.orderedSections valueForKey:[[[self.orderedSections allKeys] sortedArrayUsingSelector:@selector(localizedCaseInsensitiveCompare:)] objectAtIndex:indexPath.section]] objectAtIndex:indexPath.row]; tableController.empInfo = employee; [self.navigationController pushViewController:tableController animated:YES]; [tableController release]; } 

这是EmployeeInfoTableView.h文件

 @interface EmployeeInfoTableView : UITableViewController <UIActionSheetDelegate , MFMailComposeViewControllerDelegate, MFMessageComposeViewControllerDelegate>{ NSDictionary *empInfo; NSString *currentPhoneNumber; NSString *currentEmail; UIActionSheet *callConfirm; } 

然后我使用empInfo在tableview中设置某些字段。

这是我的dealloc方法

 - (void)dealloc{ [super dealloc]; [empInfo dealloc]; [currentEmail dealloc]; [currentPhoneNumber dealloc]; [callConfirm dealloc]; } 

是因为我的错误，因为我需要释放我的任何对象？

这是我从我的iPhone得到的错误，我真的不知道如何阅读这个。

  Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0xb001fb49 Crashed Thread: 0 Thread 0 name: Dispatch queue: com.apple.main-thread Thread 0 Crashed: 0 libobjc.A.dylib 0x31798c98 objc_msgSend + 16 1 libobjc.A.dylib 0x317a24d2 objc_setProperty_non_gc + 62 2 libobjc.A.dylib 0x3179a040 objc_setProperty + 20 3 CorporateDirectory 0x0000e5f0 0x1000 + 54768 4 CorporateDirectory 0x00003ac2 0x1000 + 10946 5 UIKit 0x32cc3514 -[UITableView _selectRowAtIndexPath:animated:scrollPosition:notifyDelegate:] + 656 6 UIKit 0x32d270e4 -[UITableView _userSelectRowAtPendingSelectionIndexPath:] + 124 7 Foundation 0x338266ce __NSFireDelayedPerform + 362 8 CoreFoundation 0x345f4a40 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 8 9 CoreFoundation 0x345f6ec4 __CFRunLoopDoTimer + 844 10 CoreFoundation 0x345f783e __CFRunLoopRun + 1082 11 CoreFoundation 0x34587ebc CFRunLoopRunSpecific + 224 12 CoreFoundation 0x34587dc4 CFRunLoopRunInMode + 52 13 GraphicsServices 0x322b2418 GSEventRunModal + 108 14 GraphicsServices 0x322b24c4 GSEventRun + 56 15 UIKit 0x32c9dd62 -[UIApplication _run] + 398 16 UIKit 0x32c9b800 UIApplicationMain + 664 17 CorporateDirectory 0x00002a52 0x1000 + 6738 18 CorporateDirectory 0x00002a10 0x1000 + 6672 Thread 1: 0 libsystem_kernel.dylib 0x339663ec __workq_kernreturn + 8 1 libsystem_c.dylib 0x3480f6d8 _pthread_wqthread + 592 2 libsystem_c.dylib 0x3480fbbc start_wqthread + 0 Thread 2 name: Dispatch queue: com.apple.libdispatch-manager Thread 2: 0 libsystem_kernel.dylib 0x33966fbc kevent + 24 1 libdispatch.dylib 0x322df032 _dispatch_mgr_invoke + 706 2 libdispatch.dylib 0x322e003a _dispatch_queue_invoke + 86 3 libdispatch.dylib 0x322df5ea _dispatch_worker_thread2 + 186 4 libsystem_c.dylib 0x3480f58a _pthread_wqthread + 258 5 libsystem_c.dylib 0x3480fbbc start_wqthread + 0 Thread 3 name: WebThread Thread 3: 0 libsystem_kernel.dylib 0x33963c00 mach_msg_trap + 20 1 libsystem_kernel.dylib 0x33963758 mach_msg + 44 2 CoreFoundation 0x345f52b8 __CFRunLoopServiceMachPort + 88 3 CoreFoundation 0x345f7562 __CFRunLoopRun + 350 4 CoreFoundation 0x34587ebc CFRunLoopRunSpecific + 224 5 CoreFoundation 0x34587dc4 CFRunLoopRunInMode + 52 6 WebCore 0x3666927e _ZL12RunWebThreadPv + 382 7 libsystem_c.dylib 0x3480e30a _pthread_start + 242 8 libsystem_c.dylib 0x3480fbb4 thread_start + 0 Thread 0 crashed with ARM Thread State: r0: 0x0016c020 r1: 0x32f63814 r2: 0x000000a8 r3: 0x0016c020 r4: 0xb001fb41 r5: 0x00000000 r6: 0x001eeca8 r7: 0x2fdfe8c4 r8: 0x00a1da00 r9: 0x0016c020 r10: 0x00000003 r11: 0x00161a50 ip: 0x00000000 sp: 0x2fdfe8a4 lr: 0x317a24d9 pc: 0x31798c98 

cpsr：0x00000030

Answer 1

尝试删除这一行

 [tableController release]; 

从你的didSelectRowAtIndexPath方法。 当我们尝试访问以前发布的variables时，会引发EXC_BAD_ACCESS错误。 你同时用tableController释放NSDictionary *employee对象。

编辑：为了防止你的字典被释放，你可以copy字典所需的内容作为tableController.empInfo = [employee copy]; 然后释放最适合这种情况的tableController 。

Answer 2

我没有看到你的didSelectRowAtIndexPath有什么问题，但你的dealloc方法肯定是不正确的。 不要在你的代码中调用dealloc（即，只有在你完成它们的时候才释放对象）。

你的dealloc方法应该如下所示：

 - (void)dealloc{ [empInfo release]; [currentEmail release]; [currentPhoneNumber release]; [callConfirm release]; [super dealloc]; }