Iphone uitableviewcell的子视图存在问题

我向uitableviewcells添加了一个子视图，它工作正常，但当我向上或向下滚动时，子视图会添加多次。我不知道我错在哪里

这是我的密码：

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

 static NSString *CellIdentifier = @"MainPageCellView";
 MainPageTableCellView *cell = (MainPageTableCellView *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];

 if (cell == nil) {  
  [[NSBundle mainBundle] loadNibNamed:@"MainPageTableCellView" owner:self options:nil];  
  cell = mainPageTableCell;
 } 



 [cell setNameText:[namesArray objectAtIndex:indexPath.row]];
 [cell setPositionText:[positionArray objectAtIndex:indexPath.row]];
 [cell setCompanyNameText:[companyNameArray objectAtIndex:indexPath.row]];
 [cell setDistanceText:[distArray objectAtIndex:indexPath.row]];
 [cell setImageViewImage:[imagesArray objectAtIndex:indexPath.row]];


 UIImage *halo = [UIImage imageNamed:@"h1.png"]; 
 UIImageView *haloV = [[UIImageView alloc] initWithImage:halo];

 if(indexPath.row == 0)
 [cell addSubview: haloV];
 else if(indexPath.row ==2)
 [cell addSubview: haloV];
 else if(indexPath.row ==3)
 [cell addSubview: haloV];


 return cell;

}

---

您正在将子视图添加到单元中，无论它们是否刚刚创建或正在重用。当您上下滚动时，它们会被重用，因此子视图会被重复添加

在if（cell==nil）块中移动对addSubview的调用，这应该可以解决问题

 if (cell == nil) {  
   [[NSBundle mainBundle] loadNibNamed:@"MainPageTableCellView" owner:self options:nil];  
   cell = mainPageTableCell;

   UIImage *halo = [UIImage imageNamed:@"h1.png"]; 
   UIImageView *haloV = [[UIImageView alloc] initWithImage:halo];

   if(indexPath.row == 0)
     [cell addSubview: haloV];
   else if(indexPath.row ==2)
     [cell addSubview: haloV];
   else if(indexPath.row ==3)
     [cell addSubview: haloV];
 }