ios - 空的 UITableView

Question

我有一个可编辑的 tableView，但我无法删除最后一个对象，这是我的方法:

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
    [tableView beginUpdates];
    if (editingStyle == UITableViewCellEditingStyleDelete)
    {
        [self deletePermittedFriend:[friendsIDs objectAtIndex:indexPath.row]];
        [tableDataList removeObjectAtIndex:indexPath.row];
    }

    [tableView endUpdates];
}

如果 tableDataList MutableArray 只有最后一个对象，则会给我一个错误:

* Assertion failure in -[UITableView _endCellAnimationsWithContext:], /SourceCache/UIKit/UIKit-2380.17/UITableView.m:1070 2013-05-21 11:41:47.306 EzMall[3398:907] * Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Invalid update: invalid number of rows in section 0. The number of rows contained in an existing section after the update (0) must be equal to the number of rows contained in that section before the update (1), plus or minus the number of rows inserted or deleted from that section (0 inserted, 0 deleted) and plus or minus the number of rows moved into or out of that section (0 moved in, 0 moved out).'

Answer 1

看来您忘记调用这个 UITableView 方法了:

– deleteRowsAtIndexPaths:withRowAnimation:

顺便说一句:阅读错误消息始终是一个好习惯。