cell separator line 不能到头

//Setup your cell margins:
-(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath {
    // Remove seperator inset
    if ([cell respondsToSelector:@selector(setSeparatorInset:)]) {
        [cell setSeparatorInset:UIEdgeInsetsZero];
    }
    // Prevent the cell from inheriting the Table View's margin settings
    if ([cell respondsToSelector:@selector(setPreservesSuperviewLayoutMargins:)]) {
        [cell setPreservesSuperviewLayoutMargins:NO];
    }
    // Explictly set your cell's layout margins
    if ([cell respondsToSelector:@selector(setLayoutMargins:)]) {
        [cell setLayoutMargins:UIEdgeInsetsZero];
    }
    if([tableView respondsToSelector:@selector(setCellLayoutMarginsFollowReadableWidth:)])
    {
        tableView.cellLayoutMarginsFollowReadableWidth = NO;
    }
}

#pragma //correct iOS9 the cell separator line not to left
-(void)viewDidLayoutSubviews
{
    [super viewDidLayoutSubviews];
    
    // Force your tableview margins (this may be a bad idea)
    if ([self.tableView respondsToSelector:@selector(setSeparatorInset:)]) {
        [self.tableView setSeparatorInset:UIEdgeInsetsZero];
    }
    
    if ([self.tableView respondsToSelector:@selector(setLayoutMargins:)]) {
        [self.tableView setLayoutMargins:UIEdgeInsetsZero];
    }
    if([self.tableView respondsToSelector:@selector(setCellLayoutMarginsFollowReadableWidth:)])
    {
        self.tableView.cellLayoutMarginsFollowReadableWidth = NO;
    }
}