iOS 解决cell分割线左边短20px的问题

/**
 *  解决cell分割线左边短20px的问题
 */
- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (indexPath.section == 0) {
        
        if ([cell respondsToSelector:@selector(setLayoutMargins:)])
        {
            [cell setLayoutMargins:UIEdgeInsetsZero];
        }
        
        if ([cell respondsToSelector:@selector(setSeparatorInset:)])
        {
            [cell setSeparatorInset:UIEdgeInsetsZero];
        }
    }
}