ios - iOS 8.0 升级后 UILabel 不显示

Question

今天早上刚刚更新到 iOS 8.0。我有一段代码创建了一些标签并将它们显示在一些图像旁边的屏幕上。更新之前一直运行良好。现在标签和图像不显示。有人可以帮忙吗，因为我已经尝试了我能想到的所有方法，但没有任何方法可以解决我的问题，并且找不到其他有类似问题的人。代码附在下面。

UIView *labelView = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 320, kCategoryLabelHieght)];
labelView.backgroundColor = [self colorWithHexString:@"2D2D2D"];

UILabel *categoryTitle = [[UILabel alloc] initWithFrame:CGRectMake(40, 0, 200, kCategoryLabelHieght)];
categoryTitle.textAlignment = NSTextAlignmentLeft;
categoryTitle.text = text;
categoryTitle.font = [UIFont fontWithName:@"HelveticaNeue" size:14];

codeAppDelegate *appDelegate = (codeAppDelegate *)[[UIApplication sharedApplication] delegate];
NSArray *fetchedCategory = [appDelegate getCategoryByName:text];

UIImageView *img=[[UIImageView alloc]initWithFrame:CGRectMake(10, 2, 20, 20)];

if(fetchedCategory.count)
{
    for (int t=0; t<fetchedCategory.count; t++) {
        Dealcategory_List *catList = [fetchedCategory objectAtIndex:t];
        NSString *titleImage = [self URLEncodeString:[NSString stringWithFormat:@"%@",catList.image]];
        NSURL *url = [NSURL URLWithString:titleImage];
        NSData *data = [NSData dataWithContentsOfURL:url];
        UIImage *imgTabs = [UIImage imageWithData:data];
        //        [header2 setImage:imgTabs forState:UIControlStateNormal];
        [imgTabs resizableImageWithCapInsets: UIEdgeInsetsMake(5, 10, 2, 0) resizingMode: UIImageResizingModeTile];

        img.image= imgTabs;
    }
}
else
{
    NSArray *fetchedNewsCategory = [appDelegate getNewsCategoryByName:text];

    if(fetchedNewsCategory.count > 0)
    {
        for (int t=0; t<fetchedNewsCategory.count; t++) {
            News_Categories *catList = [fetchedNewsCategory objectAtIndex:t];
            NSString *titleImage = [self URLEncodeString:[NSString stringWithFormat:@"%@",catList.category_image]];
            NSURL *url = [NSURL URLWithString:titleImage];
            NSData *data = [NSData dataWithContentsOfURL:url];
            UIImage *imgTabs = [UIImage imageWithData:data];
            //        [header2 setImage:imgTabs forState:UIControlStateNormal];
            [imgTabs resizableImageWithCapInsets: UIEdgeInsetsMake(10, 10, 2, 0) resizingMode: UIImageResizingModeTile];

            img.image= imgTabs;
        }
    }
    else
    {
        NSArray *fetchedCompetition = [appDelegate getCompetitionByName:text];

        if(fetchedCompetition.count > 0)
        {
            for (int t=0; t<fetchedCompetition.count; t++) {
                Competitions_List *catList = [fetchedCompetition objectAtIndex:t];
                NSString *titleImage = [self URLEncodeString:[NSString stringWithFormat:@"%@",catList.competition_tab_image]];
                NSURL *url = [NSURL URLWithString:titleImage];
                NSData *data = [NSData dataWithContentsOfURL:url];
                UIImage *imgTabs = [UIImage imageWithData:data];
                //        [header2 setImage:imgTabs forState:UIControlStateNormal];
                [imgTabs resizableImageWithCapInsets: UIEdgeInsetsMake(10, 10, 2, 0) resizingMode: UIImageResizingModeTile];

                img.image= imgTabs;

                break;
            }
        }
    }
}

categoryTitle.textColor = color;
[labelView addSubview:img];
[labelView addSubview:categoryTitle];

[self.contentView addSubview:labelView];

Answer 1

UIView *labelView = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 320, kCategoryLabelHieght)];

您正在定义一个 UIView 但分配一个 UILabel。 iOS 8 对此类错误的容忍度较低。尝试将其更改为

UIView *labelView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, kCategoryLabelHieght)];