gistfile1.m

    Try to reduce the size of images

    If you cannot reduce the size for any reasons, try the below code (operationQueue is an ivar of the instance of NSOperationQueue)

    - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
    {
        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"identifier"];
        [operationQueue addOperationWithBlock:^{
            NSString *imagePath = [[NSBundle mainBundle] pathForResource:@"name" ofType:@"jpg"];
            UIImage *image = [[UIImage alloc] initWithContentsOfFile:imagePath];
            [[NSOperationQueue mainQueue] addOperationWithBlock:^{
                UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
                cell.imageView.image = image;
            }];
        }];
        return cell;
    }