Ios tableView:CommittedItingStyle:ForRowatineXpath:如何使用nil索引XPath调用？

我终于找到了一起奇怪的车祸。这是由使用

nil

indexath调用

tableView:committeeditingstyle:forRowAtIndexPath:

引起的。但这怎么可能呢

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
    if (editingStyle == UITableViewCellEditingStyleDelete) {
        // DEBUG
        if (indexPath == nil) {
            NSLog(@"Deleting row at nil indexPath in %@", self);
        }
        [self deleteItemAtIndexPath:indexPath fromTableView:tableView];
    }
}

以下是堆栈跟踪：

6    XXX     -[ListViewController tableView:commitEditingStyle:forRowAtIndexPath:] (ListViewController.m:427)
7    UIKit   -[UITableView(UITableViewInternal) animateDeletionOfRowWithCell:] + 85
8    UIKit   -[UIApplication sendAction:to:from:forEvent:] + 73
9    UIKit   -[UIApplication sendAction:toTarget:fromSender:forEvent:] + 31
10   UIKit   -[UIControl sendAction:to:forEvent:] + 45
11   UIKit   -[UIControl(Internal) _sendActionsForEvents:withEvent:] + 503
12   UIKit   -[UIApplication sendAction:to:from:forEvent:] + 73
13   UIKit   -[UIApplication sendAction:toTarget:fromSender:forEvent:] + 31
14   UIKit   -[UIControl sendAction:to:forEvent:] + 45
15   UIKit   -[UIControl(Internal) _sendActionsForEvents:withEvent:] + 503
16   UIKit   -[UIControl touchesEnded:withEvent:] + 489
17   UIKit   -[UIWindow _sendTouchesForEvent:] + 525
18   UIKit   -[UIApplication sendEvent:] + 381
19   UIKit   _UIApplicationHandleEvent + 6155
20   GraphicsServices    _PurpleEventCallback + 591
21   CoreFoundation  __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15
22   CoreFoundation  __CFRunLoopDoSources0 + 213
23   CoreFoundation  __CFRunLoopRun + 647
24   CoreFoundation  CFRunLoopRunSpecific + 357
25   CoreFoundation  CFRunLoopRunInMode + 105
26   GraphicsServices    GSEventRunModal + 75
27   UIKit   UIApplicationMain + 1121
28   XXX     main (main.m:16)
29   XXX     start + 40

---

异常是由于索引处存在数据，但indexPath已被删除。您需要删除索引处的数组对象

请尝试以下操作：

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath 
   {
      if (editingStyle == UITableViewCellEditingStyleDelete) 
      {
         [self deleteItemAtIndexPath:indexPath fromTableView:tableView];
         NSMutableArray * tempArray = [yourDataArray mutableCopy];
        [tempArray removeObjectAtIndex: indexPath.row];
         yourDataArray = tempArray;
        [tableView reloadData];
      }
   }

---

您是否有一个堆栈跟踪显示调用来自何处？我有相同的IndexPath错误，但有另一个堆栈跟踪。你解决了这个问题吗？我已经在代码中解决了这个问题。我在NSTimer的处理程序中调用了UITableView:reloadRowsAtIndexPaths:withRowAnimation:。有时这会导致tableView:CommittedItingStyle:ForRowatineXpath:崩溃。但是我不明白崩溃是怎么发生的，因为这两个方法都在同一个线程中执行。在deleteItemAtIndexPath中，您是否在该方法中执行了一些多线程处理？