Assertion failure error when trying to delete a row from a UITableView

Question

Sometimes I get this error when trying to delelte a row from the UITableView:

Assertion failure in -[UITableView _endCellAnimationsWithContext:]

and other times it deletes the row with not problems.

Here is my code:

- (void) tableView:(UITableView *)tableView
commitEditingStyle:(UITableViewCellEditingStyle)editingStyle 
 forRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (editingStyle == UITableViewCellEditingStyleDelete)
    {
     [[self displayedObjects] removeObjectAtIndex:[indexPath row]];


     // Animate deletion
     NSArray *indexPaths = [NSArray arrayWithObject:indexPath];
     [[self tableView] deleteRowsAtIndexPaths:indexPaths withRowAnimation:UITableViewRowAnimationFade];

    }
}

Answer 1

Sounds like your numberOfRowsInSection is returning the wrong Integer sometimes when you enter the editing mode.

Answer 2

Not so sure.. but try this (worked for me once)

First Animate the UITableView deletion, then remove the object from array.

if (editingStyle == UITableViewCellEditingStyleDelete)
    {
     // Animate deletion
     NSArray *indexPaths = [NSArray arrayWithObject:indexPath];
     [[self tableView] deleteRowsAtIndexPaths:indexPaths withRowAnimation:UITableViewRowAnimationFade];

    [[self displayedObjects] removeObjectAtIndex:[indexPath row]];

    }