Question

我有一个带自定义单元格的UITableView。当我点击编辑时，TableView会进入编辑模式。我可以移动单元格并删除它们，并将结果保存到核心数据实体。新的单元格顺序保留在Core Data中，一切正常。

但是我希望在移动之后或者在点击“完成”之后反映单元格的新位置。无论移动到何处，标签中的值始终为行+ 1。我如何重新补充

实现这一目标的最佳方法是什么？

提前致谢

-Paul

- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath
{
ProfileItems *profileItems = [ingredients objectAtIndex:fromIndexPath.row];
// NSLog(@"profileItems: %@", profileItems);

[ingredients removeObjectAtIndex:fromIndexPath.row];
[ingredients insertObject:profileItems atIndex:toIndexPath.row];

NSInteger start = fromIndexPath.row;
NSLog(@"start: %d", start);

NSInteger end = toIndexPath.row;
NSLog(@"end: %d", end);

// Update Core Data to reflect the cell's new position in the TableView
profileItems.profileItemsSongOrder = [NSNumber numberWithInteger:end + 1];

// This won't work becuase there is no cell referenced in here.  Do I have to point to it again? If so how?
cell.profileItemsSongNumberLabel.text   = [NSString stringWithFormat:@"%@",profileItems.profileItemsSongOrder]; 
}

Answer 1

我通过以下方式解决了这个...循环

    for (int i = 0; i < numberOfRows; i++) 
    {
        [[profileItemsNSMArray objectAtIndex:i] setValue:[NSNumber numberWithInt:i + 1] forKey:@"profileItemsSongOrder"];
    }

如何在UITableViewCell重新排序后更改标签的文本

1 个答案: