Question

Iam尝试创建此设计

来自以下json

 details =     (
                (
                        {
                subtitle = "One";
                title = 1;
            },
                        {
                subtitle = "two";
                title = "2";
            },
                        {
                subtitle = "three";
                title = "3";
            }
        ),
                (
                        {
                subtitle = "one_two";
                title = "1_2";
            },
                        {
                subtitle = "two_two";
                title = "2_2";
            }
        )
    );

我尝试过以下代码并且没有显示任何UILables

      - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell"];

    if (!cell) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"cell"] ;

        NSUInteger row = [indexPath row];
        int i = 0;
        NSUInteger nLabels = [[mainArray objectAtIndex:indexPath.row ] count];
        UILabel *label;
        float x =self.tableView.frame.size.width/nLabels;

        for (i = 0; i < nLabels; i++) {
            label = [[UILabel alloc] initWithFrame:CGRectMake(10 + (i * x), cell.frame.origin.y, 40, cell.frame.size.height)] ; //replace 40 with desired label width
            label.textColor = [UIColor grayColor];
            label.backgroundColor = [UIColor clearColor];
            // set the label text here
            label.text=@"treWT";
            [label setNumberOfLines:0];
            [label setAdjustsFontSizeToFitWidth:YES];
            [cell.contentView addSubview:label];

        }
    }

    return cell;
}

现在我可以通过这种方式看到模拟器

仍然没有对齐请帮助我

Answer 1

尝试以下代码进行标签对齐：

    NSUInteger row = [indexPath row];
    int i = 0;
    NSUInteger nLabels = [[mainArray objectAtIndex:indexPath.row ] count];
    UILabel *label;
    float w =self.tableView.frame.size.width/nLabels;
    float x = 0; 

    for (i = 0; i < nLabels; i++) {
        label = [[UILabel alloc] initWithFrame:CGRectMake(x, cell.frame.origin.y, w, cell.frame.size.height)] ; //replace 40 with desired label width
        label.textColor = [UIColor grayColor];
        label.backgroundColor = [UIColor clearColor];
        // set the label text here
        label.text=@"treWT";
        [label setNumberOfLines:0];
        [label setAdjustsFontSizeToFitWidth:YES];
        label.textAlignment = NSTextAlignmentCenter;
        [cell.contentView addSubview:label];
         x += w;
    }

Answer 2

删除if(!cell)，因为单元格不是nil。它不会执行条件。

 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell"];

   cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"cell"] ;

    int row = [indexPath row];
    int i = 0;
    int nLabels = [[rowData objectAtIndex:row] count];
    UILabel *label;


    for (i = 0; i < nLabels; i++) {
        label = [[UILabel alloc] initWithFrame:CGRectMake(cell.frame.origin.x + (i * 40), cell.frame.origin.y, 40, cell.frame.size.height)] ; //replace 40 with desired label width
        label.textColor = [UIColor grayColor];
        label.backgroundColor = [UIColor clearColor];
        // set the label text here
          label.text=@"treWT"; //temp text 
        [cell.contentView addSubview:label];

    }


return cell;
}

从iOS中的json动态创建UITableView中的UILabel？

2 个答案: