ios - 具有动态 UILable 数量的 UITableViewCell

Question

我试图实现一个像这样的表格视图

请阅读评论以查看链接<1>

我的实现是：
1. 我用笔尖创建我的单元格！请阅读评论以查看链接<2>

出于测试目的，我对单元格的标题部分进行硬编码，然后在代码中创建其余部分，如下所示......

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:                (NSIndexPath *)indexPath
{
    UITableViewCell *myCell = (UITableViewCell*) 
    [self.tableView dequeueReusableCellWithIdentifier:@"CheckedOutOrderTableCell"];

    [[NSBundle mainBundle] loadNibNamed:@"CheckedOutOrderTableCell" owner:self options:NULL];
    myCell = nibLoadedTableCell;

    UILabel *orderConditionLabel = [[UILabel alloc] initWithFrame:CGRectMake(250, (85+([[bigDictionary objectAtIndex:indexPath.row]count]*35)), 64, 21)];
    [orderConditionLabel setText:@"Delivered"];
    [orderConditionLabel setFont:[UIFont systemFontOfSize:14]];
    orderConditionLabel.textColor = [UIColor darkGrayColor];
    orderConditionLabel.backgroundColor = [UIColor clearColor];

    for(NSInteger i=0; i<[[bigDictionary objectAtIndex:indexPath.row]count]; i++)
    {
        UILabel *quantityLabel = [[UILabel alloc] initWithFrame:CGRectMake(15, 85+(i*35), 42, 21)];  
        UILabel *foodLabel = [[UILabel alloc] initWithFrame:CGRectMake(85, 85+(i*35), 175, 21)];
        UILabel *priceLabel = [[UILabel alloc] initWithFrame:CGRectMake(220, 85+(i*35), 60, 21)];

        [quantityLabel setFont:[UIFont systemFontOfSize:15]];
        [foodLabel setFont:[UIFont systemFontOfSize:15]];
        [priceLabel setFont:[UIFont systemFontOfSize:15]];

        [quantityLabel setText:[NSString stringWithFormat:@"%@",[[[bigDictionary objectAtIndex:indexPath.row]objectAtIndex:i]valueForKey:@"quantity"]]];           
        [foodLabel setText:[NSString stringWithFormat:@"%@",[[[bigDictionary objectAtIndex:indexPath.row]objectAtIndex:i]valueForKey:@"item_name"]]];        
        [priceLabel setText:[NSString stringWithFormat:@"$ %@.00", [[[bigDictionary objectAtIndex:indexPath.row]objectAtIndex:i]valueForKey:@"price"]]];   

        [self.view addSubview:quantityLabel];
        [self.view addSubview:foodLabel];
        [self.view addSubview:priceLabel]; 
        quantityLabel = nil;
        foodLabel = nil;
        priceLabel = nil;
    }
    [self.view addSubview:orderConditionLabel];
    orderConditionLabel = nil;
    return myCell;
}

当然我也重写了 heightForRowAtIndexPath: 我终于得到了这个......

http://i.stack.imgur.com/cF7Y4.png

一切似乎都正常：D所有标签都是动态创建的，位置完美……然后我试图保存任何其他记录……然后崩溃了:'(

http://i.stack.imgur.com/RAXMF.png

我使用 NSLOG 检查输入这些单元格的数据，下面是我的“bigDictionary”的结构

2012-05-17 12:17:50.330 LazBuy[53187:11903] show structure (
        (
                {
            "item_name" = "\U8292\U679c\U9752\U8336";
            price = 30;
            quantity = 1;
        },
                {
            "item_name" = "\U6587\U5c71\U6e05\U8336";
            price = 20;
            quantity = 3;
        },
                {
            "item_name" = "\U8292\U679c\U9752\U8336";
            price = 30;
            quantity = 3;
        }
    ),
        (
                {
            "item_name" = "\U51cd\U9802\U70cf\U9f8d\U8336";
            price = 15;
            quantity = 3;
        }
    )
)

数据输入正确，我不知道出了什么问题！

为什么标签没有正确更新，我需要发布它们吗？但我不能发布，因为 ARC 不让我做发布线。

score 0 · Accepted Answer

您正在将标签添加到 self.view？论文应该在 tableviewcell 上。

[self.view addSubview:quantityLabel];
[self.view addSubview:foodLabel];
[self.view addSubview:priceLabel];

和

[self.view addSubview:orderConditionLabel];

此外，您的 tableviewcell 重用应该看起来更像这样

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{
 static NSString *MyIdentifier = @"MyIdentifier";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier];
    if (cell == nil) {
        [[NSBundle mainBundle] loadNibNamed:@"TVCell" owner:self options:nil];
        cell = tvCell;
        self.tvCell = nil;
    }

    // Set your labels text

    return cell;
}

ios - 具有动态 UILable 数量的 UITableViewCell

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