Question

我使用下面的代码将图像缩放到我的UIImageView。当表第一次加载时，一切都很好。但是当我滚动桌面视图时，所有图像方面都被打破了。

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

    [self configureCustomCell:(ProductsTableViewCell*)cell atIndexPath:indexPath];

    return cell;
}

- (void)configureCustomCell:(ProductsTableViewCell*)cell atIndexPath:(NSIndexPath *)indexPath {

    NSURL *url = [NSURL URLWithString:[[arr_products objectAtIndex:indexPath.section] productImage]];
    NSURLRequest *request = [NSURLRequest requestWithURL:url];

    __weak UITableViewCell *weakCell = cell;

    [cell.productPhotoImage setImageWithURLRequest:request placeholderImage:nil
          success:^(NSURLRequest *request, NSHTTPURLResponse *response, UIImage *image) {
                weakCell.imageView.image = image;
              weakCell.imageView.contentMode = UIViewContentModeScaleAspectFit;
              weakCell.imageView.clipsToBounds = YES;
              weakCell.imageView.frame = CGRectMake(5, 5, 60, 60);
          }
    failure:nil];
}

Answer 1

如果您想从服务器获取图像，然后将其加载到单元格上，则表格单元格无法正常升级，

您可以使用SDWebImage Library从服务器加载图片，请检查此链接SDWEbImage

如果您想添加活动指标，请查看此https://github.com/JJSaccolo/UIActivityIndicator-for-SDWebImage

#import <SDWebImage/UIImageView+WebCache.h>

in cellForRowAtIndexPath

[weakCell.myImage setImageWithURL:[NSURL URLWithString:imageUrl] placeholderImage:[UIImage imageNamed:@"mawgif-log.png"] options:SDWebImageRefreshCached usingActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];

当tableview滚动时，UIImageView Aspect to Fit不工作

1 个答案: