问来自cellForRowAtIndexPath的UITableViewCell具有未更新的子视图

EN

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UIView *left;
    UIImageView *leftImage;
    UILabel *label;
    ArticleButton *btn;

    UITableViewCell* cell = [tableView dequeueReusableCellWithIdentifier:@"UITableViewCell"];
    if (!cell)
    {
        cell = [[[UITableViewCell alloc]
                 initWithStyle:UITableViewCellStyleSubtitle 
                 reuseIdentifier:@"UITableViewCell"] autorelease];

        left = [[[UIView alloc] initWithFrame:CGRectMake(0, 2, 155, 139)] autorelease];
        leftImage = [[[UIImageView alloc] initWithFrame:CGRectMake(7,9,141,77)] autorelease];
        label = [[[UILabel alloc] initWithFrame:CGRectMake(6,87,141,48)] autorelease];
        btn = [[[ArticleButton alloc] initWithFrame:CGRectMake(0,2,155,139)] autorelease];

        left.tag = 0;
        leftImage.tag = 1;
        label.tag = 2;
        btn.tag = 3;

        [btn addTarget:self action:@selector(selectArticle:) forControlEvents:UIControlEventTouchUpInside];

        [cell.contentView addSubview:left];
        [cell.contentView addSubview:leftImage];    
        [cell.contentView addSubview:label];
        [cell.contentView addSubview:btn];
    }
    else
    {
        left = (UIView*)[cell viewWithTag:0];
        leftImage = (UIImageView*)[cell viewWithTag:1];
        label = (UILabel*)[cell viewWithTag:2];
        btn = (ArticleButton*)[cell viewWithTag:3];
    }

...load *entry


    NSURL *url = [NSURL URLWithString:[entry imageUrl]];

    FeedEntry* selectedEntry = [detailViewController detailItem];
    NSString* selectedTitle = selectedEntry.title;



    if ([selectedTitle isEqualToString:entry.title])
    {       
        [left setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:@"cellbackground_sel.png"]]];  <-- PROBLEM IS THIS IMAGE NEVER CHANGES
        NSLog(@"selected row %@", selectedTitle);
    }
    else{
        [left setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:@"cellbackground2.png"]]];
    }           

    [left setNeedsDisplay];

    [leftImage setImageWithURL:url placeholderImage:[UIImage imageNamed:@"placeholder.gif"]];
    [leftImage setContentMode:UIViewContentModeScaleAspectFill];
    leftImage.clipsToBounds = YES;

       [label setBackgroundColor:[UIColor clearColor]];
    label.textColor = [UIColor whiteColor];
    label.text  = [entry.title stringByAppendingString:@"\n\n"];
    label.numberOfLines  = 3;
    label.lineBreakMode = UILineBreakModeClip;
    label.font = [UIFont fontWithName:@"Arial-BoldMT" size:12];

    cell.selectionStyle = UITableViewCellSelectionStyleNone;


    return cell;
}

if ([selectedTitle isEqualToString:entry.title])
    {       
        [left setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:@"cellbackground_sel.png"]]];
        NSLog(@"selected row %@", selectedTitle);
    }
    else{
        [left setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:@"cellbackground2.png"]]];
    }