Default header for gruped table header view

GroupedTableViewHead.m

- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section{
        UIView *containerView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 40)];
        containerView.backgroundColor = [UIColor groupTableViewBackgroundColor];
        CGRect labelFrame = CGRectMake(20, 2, 320, 30);
        UILabel *label = [[UILabel alloc] initWithFrame:labelFrame];
        label.backgroundColor = [UIColor clearColor];
        label.font = [UIFont boldSystemFontOfSize:17];
        label.shadowColor = [UIColor colorWithWhite:1.0 alpha:1];
        label.shadowOffset = CGSizeMake(0, 1);
        label.textColor = [UIColor colorWithRed:0.265 green:0.294 blue:0.367 alpha:1.000];
        label.text = [self tableView:tableView titleForHeaderInSection:section];
        [containerView addSubview:label];
        return containerView;
}