deleteRowsAtIndexPaths原因SIGABRT

我读过很多帖子，但找不到答案。我在我的项目MGSwipeTableCell中添加了https://github.com/MortimerGoro/MGSwipeTableCell。deleteRowsAtIndexPaths原因SIGABRT

我添加了.h文件：#import "MGSwipeTableCell.h"和"MGSwipeButton.h"。

还增加了：

@interface BuyItemListViewController : UIViewController <NSFetchedResultsControllerDelegate, MGSwipeTableCellDelegate, UITableViewDelegate, UITableViewDataSource, UIActionSheetDelegate>

在故事板我MGSwipeTableCell类设置为我的手机。正如在这个自定义控件的帮助下编写的。

所以，当我尝试做删除行与我的自定义按钮，获取deleteRowsAtIndexPaths导致SIGABRT：

-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{ 

    return 1; 
} 

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{ 

    id<NSFetchedResultsSectionInfo> sectionInfo = [[self.fetchedResultsController sections]objectAtIndex:section]; 
    return [sectionInfo numberOfObjects]; 
    //return self.fetchedResultsController.fetchedObjects.count; 
} 

-(BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath{ 

    return YES; 
} 

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { 

    static NSString *cellIdentifier = @"itemCell"; 
    MGSwipeTableCell *cell = [self.itemTableView dequeueReusableCellWithIdentifier:cellIdentifier]; 

    cell.leftSwipeSettings.transition = MGSwipeTransitionBorder; 
    cell.rightSwipeSettings.transition = MGSwipeTransitionBorder; 

    cell.leftButtons = [self createLeftButtons:1]; 
    cell.rightButtons = [self createRightButtons:1]; 

    cell.delegate = self; 

    BuyItemEntity *item = [self.fetchedResultsController objectAtIndexPath:indexPath]; 

    [self applyCellValues:cell :item]; 

    return cell; 

}

的错误是在此代码：

-(BOOL) swipeTableCell:(MGSwipeTableCell*) cell tappedButtonAtIndex:(NSInteger) index direction:(MGSwipeDirection)direction fromExpansion:(BOOL) fromExpansion 
{ 

    NSLog(@"Delegate: button tapped, %@ position, index %d, from Expansion: %@", 
      direction == MGSwipeDirectionLeftToRight ? @"left" : @"right", (int)index, fromExpansion ? @"YES" : @"NO"); 

    if (direction == MGSwipeDirectionRightToLeft && index == 0) { 
     //delete button 
     NSIndexPath * path = [_itemTableView indexPathForCell:cell]; 
     NSLog(@"indexpath swipe: %i", path.row); 

     NSManagedObjectContext *context = [self managedObjectContext]; 
     BuyItemEntity *itemToDelete = [self.fetchedResultsController objectAtIndexPath:path]; 
     [context deleteObject:itemToDelete]; 

     NSError *error = nil; 
     if(![context save:&error]){NSLog(@"Eror TableView deleting! %@", error);} //---the object delete correctly 

     [_itemTableView deleteRowsAtIndexPaths:@[path] withRowAnimation:UITableViewRowAnimationLeft]; // here is SIGABRT 

     NSLog(@"Delete button pressed"); 

    }

但在演示这个类的应用没有问题，来自Demo的代码：

-(BOOL) swipeTableCell:(MGSwipeTableCell*) cell tappedButtonAtIndex:(NSInteger) index direction:(MGSwipeDirection)direction fromExpansion:(BOOL) fromExpansion 
{ 

    NSLog(@"Delegate: button tapped, %@ position, index %d, from Expansion: %@", 
      direction == MGSwipeDirectionLeftToRight ? @"left" : @"right", (int)index, fromExpansion ? @"YES" : @"NO"); 

    if (direction == MGSwipeDirectionRightToLeft && index == 0) { 
     //delete button 
     NSIndexPath * path = [_tableView indexPathForCell:cell]; 
     [tests removeObjectAtIndex:path.row]; 
     [_tableView deleteRowsAtIndexPaths:@[path] withRowAnimation:UITableViewRowAnimationLeft]; 
     NSLog(@"Delete button pressed"); 
    } 

    return YES; 

}

我在调试选项中启用了僵尸对象以获取更多信息。

http://s020.radikal.ru/i700/1410/3d/f63fbedbcff7.png

Convenience callback received (right). 
2014-10-27 12:11:22.576 NotesApp_1[4885:247508] Delegate: button tapped, right position, index 0, from Expansion: NO 
2014-10-27 12:11:22.576 NotesApp_1[4885:247508] indexpath swipe: 2 
2014-10-27 12:11:22.580 NotesApp_1[4885:247508] *** Assertion failure in -[UITableView _endCellAnimationsWithContext:], /SourceCache/UIKit_Sim/UIKit-3318.16.14/UITableView.m:1314 
2014-10-27 12:11:22.585 NotesApp_1[4885:247508] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'attempt to delete row 2 from section 0 which only contains 2 rows before the update' 
*** First throw call stack: 
(
    0 CoreFoundation      0x0206d946 __exceptionPreprocess + 182 
    1 libobjc.A.dylib      0x01cf6a97 objc_exception_throw + 44 
    2 CoreFoundation      0x0206d7da +[NSException raise:format:arguments:] + 138 
    3 Foundation       0x0196a810 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 118 
    4 UIKit        0x007c3f56 -[UITableView _endCellAnimationsWithContext:] + 4313 
    5 UIKit        0x007dc421 -[UITableView _updateRowsAtIndexPaths:updateAction:withRowAnimation:] + 337 
    6 UIKit        0x007dc49f -[UITableView deleteRowsAtIndexPaths:withRowAnimation:] + 56 
    7 NotesApp_1       0x000587dd -[BuyItemListViewController swipeTableCell:tappedButtonAtIndex:direction:fromExpansion:] + 749 
    8 NotesApp_1       0x0005f815 -[MGSwipeButtonsView handleClick:fromExpansion:] + 789 
    9 NotesApp_1       0x0005f9bc -[MGSwipeButtonsView buttonClicked:] + 108 
    10 libobjc.A.dylib      0x01d0c7cd -[NSObject performSelector:withObject:withObject:] + 84 
    11 UIKit        0x006cf23d -[UIApplication sendAction:to:from:forEvent:] + 99 
    12 UIKit        0x006cf1cf -[UIApplication sendAction:toTarget:fromSender:forEvent:] + 64 
    13 UIKit        0x00802e86 -[UIControl sendAction:to:forEvent:] + 69 
    14 UIKit        0x008032a3 -[UIControl _sendActionsForEvents:withEvent:] + 598 
    15 UIKit        0x0080250d -[UIControl touchesEnded:withEvent:] + 660 
    16 UIKit        0x0071f60a -[UIWindow _sendTouchesForEvent:] + 874 
    17 UIKit        0x007200e5 -[UIWindow sendEvent:] + 791 
    18 UIKit        0x006e5549 -[UIApplication sendEvent:] + 242 
    19 UIKit        0x006f537e _UIApplicationHandleEventFromQueueEvent + 20690 
    20 UIKit        0x006c9b19 _UIApplicationHandleEventQueue + 2206 
    21 CoreFoundation      0x01f911df __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15 
    22 CoreFoundation      0x01f86ced __CFRunLoopDoSources0 + 253 
    23 CoreFoundation      0x01f86248 __CFRunLoopRun + 952 
    24 CoreFoundation      0x01f85bcb CFRunLoopRunSpecific + 443 
    25 CoreFoundation      0x01f859fb CFRunLoopRunInMode + 123 
    26 GraphicsServices     0x0501424f GSEventRunModal + 192 
    27 GraphicsServices     0x0501408c GSEventRun + 104 
    28 UIKit        0x006cd8b6 UIApplicationMain + 1526 
    29 NotesApp_1       0x0006af2d main + 141 
    30 libdyld.dylib      0x02883ac9 start + 1 
) 
libc++abi.dylib: terminating with uncaught exception of type NSException 
(lldb)

在这段时间里我的老办法正常工作，而无需使用自定义单元格类：

-(void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath{ 


    if (editingStyle == UITableViewCellEditingStyleDelete) { 
     // Delete the row from the data source 
     //[tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade]; 
     NSManagedObjectContext *context = [self managedObjectContext]; 

     BuyItemEntity *itemToDelete = [self.fetchedResultsController objectAtIndexPath:indexPath]; 

     [context deleteObject:itemToDelete]; 

     NSError *error = nil; 

     if(![context save:&error]){ 
      NSLog(@"Eror TableView deleting! %@", error); 
     } 

    } 

}

来源

2014-10-27 Admin Admin

正确读取崩溃信息。原因：'试图从第0节删除第2行，其中只包含更新前的2行' 意味着您正在删除大小为2（索引从0开始）的数组索引2处的对象，该大小超出阵列。 – Yuvrajsinh 2014-10-27 11:09:10

NSIndexPath * path = [_ itemTableView indexPathForCell：cell]; NSLog（@“cliked row number：％i \ n”，path.row）; NSLog（@“删除之前获取的对象的数量：％i”，self.fetchedResultsController.fetchedObjects.count）; NSManagedObjectContext * context = [self managedObjectContext]; BuyItemEntity * itemToDelete = [self.fetchedResultsController objectAtIndexPath：path]; [context deleteObject：itemToDelete]; NSError * error = nil;如果（！[context save：＆error]）{NSLog（@“Eror TableView deletion！％@”，error）;} NSLog（@“删除后获取的对象数量：％i”，self.fetchedResultsController.fetchedObjects。计数）; – 2014-10-27 15:00:50

2014-10-27 17：55：42.559 NotesApp_1 [5678：345693]添加行数：2 2014-10-27 17：55：42.559 NotesApp_1 [5678：345693]删除前获取对象的数量：3 2014 -10-27 17：55：42.567 NotesApp_1 [5678：345693]删除后获取对象的数量：2 母猪，我尝试删除第2行的行，也有第1和第0行的行，而且我有我的数据库中有3个对象。错误在哪里，我不明白。我应该修改哪些代码？ – 2014-10-27 15:03:54

您是出于bounds。第一行的索引为0，因此2行以索引0开始并以索引1结束。

来源

2014-10-27 12:27:30

更高是新的日志，请帮助 – 2014-10-27 15:08:32

似乎你对你的存储对象和索引有点困惑。存储的数据有问题，您尝试删除不一致的数据。 – 2014-10-27 15:42:10

现在又出现了另外一个错误 – 2014-10-27 17:36:04

deleteRowsAtIndexPaths原因SIGABRT

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