去除UITableViewCell分割线的左间隙

-(void)viewDidLayoutSubviews
{
if ([_tableView respondsToSelector:@selector(setSeparatorInset:)]) {
[_tableView setSeparatorInset:UIEdgeInsetsMake(0,0,0,0)];
}

if ([_tableView respondsToSelector:@selector(setLayoutMargins:)]) {
[_tableView 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];
}
}