ios - UITableViewCell ios 的错误

Question

我正在处理一个 iOS 项目。我创建了一个 UITableView 来显示无人机列表。一切正常，但我注意到当我单击单元格以显示无人机的详细信息时出现错误。如下图所示。

当 tableView 被加载时

点击单元格时

这是我选择单元格时的代码:

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSString *_storyboardName = @"Main";
    UIStoryboard *_storyboard = [UIStoryboard storyboardWithName:_storyboardName bundle: nil];
    DroneDetailsViewController *detailsVC = [_storyboard instantiateViewControllerWithIdentifier:@"DroneDetailsViewController"];
    detailsVC.droneObj = [drones objectAtIndex:indexPath.row];
    [self.navigationController pushViewController:detailsVC animated:YES];
    [detailsVC.navigationController setNavigationBarHidden:NO animated:YES];
}

这是我的 cellForRowAtIndexPath 代码:

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"drone";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
    }
    DroneObject *droneObjDisplay = nil;
    droneObjDisplay = [drones objectAtIndex:indexPath.row];
    NSData *data = [[NSData alloc]initWithBase64EncodedString:droneObjDisplay.modelMSide options:NSDataBase64DecodingIgnoreUnknownCharacters];
    [self initCellWithComponents:cell :data :droneObjDisplay.modelName :droneObjDisplay.modelNumber];
    return cell;
}

这是 initCelWithComponents :

- (void)initCellWithComponents :(UITableViewCell *)cell :(NSData *)dataImage :(NSString *)title :(NSString *)subTitle {

    UIView *viewCell = [[UIView alloc] initWithFrame:CGRectMake(VIEW_MARGIN, VIEW_MARGIN, widthtScreen-20, VIEW_IMAGE_HEIGHT)];
    viewCell.layer.borderColor = [UIColor colorWithHexString:NSLocalizedString(@"border_color", nil)].CGColor;
    viewCell.backgroundColor = [UIColor whiteColor];
    viewCell.layer.borderWidth = 0.5f;

    UIImageView *image = [[UIImageView alloc]initWithFrame:CGRectMake(VIEW_MARGIN,VIEW_MARGIN, VIEW_IMAGE_HEIGHT-(2*VIEW_MARGIN),VIEW_IMAGE_HEIGHT-(2*VIEW_MARGIN))];
    image.image=[UIImage imageWithData:dataImage];
    [viewCell addSubview:image];

    UILabel *titleLabel = [[UILabel alloc]initWithFrame:CGRectMake(image.frame.size.width+2*VIEW_MARGIN, VIEW_MARGIN, viewCell.frame.size.width-(VIEW_IMAGE_HEIGHT-(4*VIEW_MARGIN)), 21)];
    titleLabel.text = title;
    titleLabel.textColor = [UIColor blackColor];
    [titleLabel setFont:[UIFont systemFontOfSize:15]];
    [viewCell addSubview:titleLabel];

    UILabel *subTitleLabel = [[UILabel alloc]initWithFrame:CGRectMake(image.frame.size.width+2*VIEW_MARGIN, 3*VIEW_MARGIN, viewCell.frame.size.width-(VIEW_IMAGE_HEIGHT-(4*VIEW_MARGIN)), 21)];
    subTitleLabel.text = subTitle;
    subTitleLabel.textColor = [UIColor blackColor];
    [subTitleLabel setFont:[UIFont systemFontOfSize:13]];
    [viewCell addSubview:subTitleLabel];

    cell.contentView.backgroundColor = [UIColor colorWithHexString:NSLocalizedString(@"gray_background", nil)];
    [cell.contentView addSubview:viewCell];
}

有什么解决办法吗？!

Answer 1

您的单元格样式是 UITableViewCellStyleSubtitle 并且您还手动添加了标题和副标题标签。

如果你使用单元格的样式作为 UITableViewCellStyleSubtitle 那么你可以直接使用

 cell.textLabel.text = @"your title label's text";
cell.detailTextLabel.text = @"your detail label's text";

如果您要添加另一个标签，那么它会创建重复的!!!!