TableView cellForRowAtIndexPath无法正确定位？

Question

我在显示视图时更改方向。但是当我将方向从纵向更改为横向时，cellForRowAtIndexPath内容不会更改。但是当我滚动表格时，方向会发生变化。意味着它无法正常工作。我不知道为什么？对于肖像模式也是如此。任何人都可以帮助我解决这个问题。我的cellForRowAtIndexPath代码显示在enter code here

下面

-(UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
   static NSString *cellIdentifier = @"CellIdentifier";
    UITableViewCell *cell = [deliveryCases dequeueReusableCellWithIdentifier:cellIdentifier];

    //    Showing data in table view

    d = [deliveryCaseArray objectAtIndex:indexPath.row];

    if (cell == nil)
    {
        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
    }

    NSArray *subviewArray = cell.contentView.subviews;
    for (UIView *view in subviewArray)
    {
        [view removeFromSuperview];
    }
   UILabel *randomNumLbl =[[UILabel alloc]initWithFrame:CGRectMake(20, 5, 100 ,50)];
    randomNumLbl.text = [NSString stringWithFormat:@"%ld",indexPath.row+1];
    randomNumLbl.textColor=[UIColor colorWithRed:74.0/255.0 green:144.0/255.0 blue:226.0/255.0 alpha:1];
     randomNumLbl.font =[UIFont systemFontOfSize:15];    randomNumLbl.backgroundColor =[UIColor clearColor];
    [cell.contentView addSubview:randomNumLbl];
     if (UIInterfaceOrientationIsPortrait(self.interfaceOrientation))
    {
       caseNameLbl =[[UILabel alloc]initWithFrame:CGRectMake(50, -5, 85 ,70)];
    }
     else
    {
        if (IS_IPHONE5)
        {
            caseNameLbl =[[UILabel alloc]initWithFrame:CGRectMake(160, -5, 85 ,70)];
        }
        else
        {
            caseNameLbl =[[UILabel alloc]initWithFrame:CGRectMake(140, -5, 85 ,70)];
        }

    }
       caseNameLbl.text = [NSString stringWithFormat:@"%@",d.caseName];
    caseNameLbl.textColor=[UIColor colorWithRed:74.0/255.0 green:144.0/255.0 blue:226.0/255.0 alpha:1];
    caseNameLbl.font =[UIFont systemFontOfSize:15];
    caseNameLbl.numberOfLines = 3;
    caseNameLbl.backgroundColor =[UIColor clearColor];
    [cell.contentView addSubview:caseNameLbl];
    if (UIInterfaceOrientationIsPortrait(self.interfaceOrientation))
    {
        caseDateLbl =[[UILabel alloc]initWithFrame:CGRectMake(140, 5, 100 ,50)];
    }
     else
      {
        if (IS_IPHONE5)
        {
            caseDateLbl =[[UILabel alloc]initWithFrame:CGRectMake(320, 5, 100 ,50)];
        }
        else{
            caseDateLbl =[[UILabel alloc]initWithFrame:CGRectMake(270, 5, 100 ,50)];
        }

    }
     NSString *dateStr =d.date;
    NSString *dateCode = [dateStr substringToIndex:[dateStr length] - 8];
    caseDateLbl.text=[NSString stringWithFormat:@"%@",dateCode];
    caseDateLbl.textColor=[UIColor colorWithRed:74.0/255.0 green:144.0/255.0 blue:226.0/255.0 alpha:1];
    caseDateLbl.font =[UIFont systemFontOfSize:15];
    caseDateLbl.backgroundColor =[UIColor clearColor];
    [cell.contentView addSubview:caseDateLbl];
  if (UIInterfaceOrientationIsPortrait(self.interfaceOrientation))
    {
        caseStatusLbl = [[UILabel alloc]initWithFrame:CGRectMake(230, -5,85 ,70)];
    }
   else
     {
        if (IS_IPHONE5)
        {
            caseStatusLbl = [[UILabel alloc]initWithFrame:CGRectMake(480, -5,85 ,70)];
        }
        else
        {
            caseStatusLbl = [[UILabel alloc]initWithFrame:CGRectMake(410, -5,85 ,70)];
        }
    }
   caseStatusLbl.text = [NSString stringWithFormat:@"%@",d.status];
    caseStatusLbl.textColor=[UIColor colorWithRed:74.0/255.0 green:144.0/255.0 blue:226.0/255.0 alpha:1];
    caseStatusLbl.font =[UIFont systemFontOfSize:15];
    caseStatusLbl.numberOfLines = 3;
    caseStatusLbl.backgroundColor =[UIColor clearColor];
    [cell.contentView addSubview:caseStatusLbl];
    [cell setUserInteractionEnabled:YES];
    tableView.allowsSelection=YES;
    deliveryCases.bounces=YES;
     return cell;

}