Question

我用我的数据库中的文件名填充我的iOS表视图。所有内容都按预期显示在tableView中。当我删除它时，问题就出现了，它删除了数据库中的条目，但条目在UITableView中没有消失。这是我的代码：

- (void)tableView:(UITableView *)tableView commitEditingStyle: (UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (editingStyle == UITableViewCellEditingStyleDelete)
    {

        DBHandler *handler;
        [handler ResumeID:[mydataList objectAtIndex:indexPath.row]]; //mydataList contains the array that contains name of all the entries in the DB and is displaying them on the tableview.
        [mydataList removeObjectAtIndex:indexPath.row];
         NSLog(@"%ld",indexPath.row);



        // Animate the deletion from the table.
        [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
    }
}

Answer 1

您实际上是将之前删除的值传递给DBHandler。检查代码，

if (editingStyle == UITableViewCellEditingStyleDelete)
{
    DBHandler *handler ;
    [handler ResumeID:[mydataList objectAtIndex:indexPath.row]]; // Pass the object from the dataSource before deleting the object from the dataSource.

     [mydataList removeObjectAtIndex:indexPath.row]; // Remove object after passing it to the DBHandler
    NSLog(@"%ld",indexPath.row);
    // Animate the deletion from the table.
    [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
}

试试这个。

Answer 2

它是ios7的一个bug ..桌面动画被破坏了！我的修复是在tableViewRowAnimation ..

之前fadeOut单元格

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
    // hide cell, because animations are broken on ios7
    if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0) {
        [tableView cellForRowAtIndexPath:indexPath].alpha = 0.0;
    }

    [tableView deleteRowsAtIndexPaths:@[indexPath]
                     withRowAnimation:UITableViewRowAnimationMiddle];
}

Answer 3

删除后刷新视图 [tableView reloadData];

删除时，UITableView中的行不会消失

3 个答案: