tableview internal inconsistency when deleting

感情迁移 提交于 2020-01-17 03:54:31

问题


I have an array (datasource) with a set of addresses, my tableview is set to have double the amount of cells from the datasource so I can style the odd cells to be small and clear (to make the tableview look like the cells are separated by a small space). My problem comes when deleting a row, I do the following:

-(void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath{
[tableView beginUpdates];
if (editingStyle==UITableViewCellEditingStyleDelete) {
        [self DeleteAddress:[ListAddress objectAtIndex:indexPath.row/2]];

        [ListAddress removeObjectAtIndex: indexPath.row/2];
        NSIndexPath *nextIndexPath = [[NSIndexPath alloc] initWithIndex:indexPath.row+1];

        [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObjects:indexPath,nextIndexPath,nil] withRowAnimation:UITableViewRowAnimationRight];
    }else if (editingStyle == UITableViewCellEditingStyleInsert){
         [self tableView:tableView didSelectRowAtIndexPath:indexPath];

    }
[tableView endUpdates];
}

The DeleteAddress method deletes the address from the database. When the debugger reaches the [tableview endUpdate] function a get the following error:

*** Assertion failure in -[UITableView _endCellAnimationsWithContext:], /SourceCache/UIKit_Sim/UIKit-2380.17/UITableView.m:1070
NSInternalInconsistencyException

回答1:


Just follow the sample code.Delete one row from your data source.Hope its useful for you.This code works for my app.Try it

//  Swipe to delete has been used.  Remove the table item

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (editingStyle == UITableViewCellEditingStyleDelete)
    {
        //  Get a reference to the table item in our data array
        Pictures *itemToDelete = [self.pictureListData objectAtIndex:indexPath.row];

        //  Delete the item in Core Data
        [self.managedObjectContext deleteObject:itemToDelete];

        //  Remove the item from our array
        [pictureListData removeObjectAtIndex:indexPath.row];

        //  Commit the deletion in core data
        NSError *error;
        if (![self.managedObjectContext save:&error])
            NSLog(@"Failed to delete picture item with error: %@", [error domain]);

        // Delete the row from the data source
        [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
    }   
}



回答2:


My problem was that I was creating my nextIndexPath variable the wrong way. It should have been like this:

NSIndexPath *nextIndexPath = [NSIndexPath indexPathForRow:indexPath.row+1 inSection:indexPath.section];

Also I couldn't delete both rows at the same time, I needed to delete them separately from bottom:

[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:nextIndexPath] withRowAnimation:UITableViewRowAnimationRight];
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationRight];


来源:https://stackoverflow.com/questions/15510928/tableview-internal-inconsistency-when-deleting

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