title: SubView added to the contentView of UITableViewCell is removed after Scrolling?
body: <p>In my application I load a tableView with an array and I've added an UIButton to each row as subView for my need. I know that the reused cell will have the added button So keeping this fact in mind I've Implemented the  -cellForRowAtIndexPath method like below</p>
  
  <pre><code>- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
  {   
      UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:@"surgeon"];
          if (!cell) {
              cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"surgeon"];
          }
          [[cell.contentView subviews] 
                    makeObjectsPerformSelector:@selector(removeFromSuperview)];
                               //before adding button to the contentView I've removed allSubViews
          UIButton *btn=[UIButton buttonWithType:UIButtonTypeCustom];
          [btn setFrame:CGRectMake(142, 4, 28, 28)];
  
          [btn setImage:[UIImage imageNamed:[NSString stringWithFormat:@"infoicon.png"]] forState:UIControlStateSelected];
          [btn setSelected:YES];
          [btn addTarget:self action:@selector(checkbtnClicked:) forControlEvents:UIControlEventTouchUpInside];
          [btn setTag:indexPath.row];
  
          if (indexPath.row==1) {
              NSLog(@"CELL %@ CONTNTVEW %@",cell.subviews,cell.contentView.subviews);
          }
          [cell.contentView addSubview:btn];
          return cell;
  }
  </code></pre>
  
  <p>My problem is that the TableView is loaded well at first time But when I scroll the TableView the Button I have added is Removed even though the removing of subView is done before adding the Button as subView help me  to get This work</p>