Fix for heightForHeaderInSection as it is called before viewForHeaderInSection and the view size until I create it.

exampleTableView.m

- (CGSize)tableView:(UITableView *)tableView sizeForHeaderLabelInSection:(NSInteger)section
{
    NSString *text = [self tableView:tableView titleForHeaderInSection:section];

    CGSize constraint = CGSizeMake(self.view.frame.size.width - kSectionTitleLeftMargin - kSectionTitleRightMargin, kMaxSectionTitleHeight);
    return [text sizeWithFont:[self fontForSectionHeader] constrainedToSize:constraint lineBreakMode:UILineBreakModeWordWrap];
}

- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{    
    return [self tableView:tableView sizeForHeaderLabelInSection:section].height + kSectionTitleTopMargin + kSectionTitleBottomMargin;
}

- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
    CGSize size = [self tableView:tableView sizeForHeaderLabelInSection:section];

    UIView* headerView = [[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0, size.width + kSectionTitleLeftMargin + kSectionTitleRightMargin, size.height + kSectionTitleTopMargin + kSectionTitleBottomMargin)];
    //headerView.contentMode = UIViewContentModeScaleToFill;

    // Add the label
    UILabel *headerLabel = [[UILabel alloc] initWithFrame:CGRectMake(kSectionTitleLeftMargin, 
                                                                     kSectionTitleTopMargin, 
                                                                     size.width, 
                                                                     size.height)];
    // put stuff to set up my headerLabel here...

    [headerView addSubview:headerLabel];

    // Return the headerView
    return headerView;
}