iOS开发 UITableView分割线设置顶头显示

-(void)viewDidLayoutSubviews
{
    if ([self.listTableView respondsToSelector:@selector(setSeparatorInset:)]) {
        [self.listTableView setSeparatorInset:UIEdgeInsetsMake(0,0,0,0)];
    }
    
    if ([self.listTableView respondsToSelector:@selector(setLayoutMargins:)]) {
        [self.listTableView setLayoutMargins:UIEdgeInsetsMake(0,0,0,0)];
    }
}

-(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
    if ([cell respondsToSelector:@selector(setSeparatorInset:)]) {
        [cell setSeparatorInset:UIEdgeInsetsZero];
    }
    
    if ([cell respondsToSelector:@selector(setLayoutMargins:)]) {
        [cell setLayoutMargins:UIEdgeInsetsZero];
    }
}