something.swift

func configureHeader() {
        
        var offersHeaderView = UIView()
        

        // control
        offersHeaderView = UIView.loadNib("AdvertisersDisclosureHeaderView")
        
        // variation
        offersHeaderView = UIView.loadNib("ContentHeaderView")
        var messageLabel = offersHeaderView.labelWithTag(12)
        messageLabel?.font = UIFont.lato(16)
        messageLabel?.textColor = UIColor.creditSesameDarkTextColor
        switch offerPage {
        case .bestCardsBT:
            messageLabel?.text = NSLocalizedString("BalanceTransfer", comment: "BT Cards Header")
        case .bestCardsZeroPercent:
            messageLabel?.text = NSLocalizedString("IntroPurchase", comment: "0% Intro Purchase APR Header")
        case .bestCardsRewards:
            messageLabel?.text = NSLocalizedString("RewardsOffer", comment: "Rewards Cards Header")
        default:
            messageLabel = nil
        }
        offersHeaderView.layoutIfNeeded()
        //end
        
        offersHeaderView.backgroundColor = UIColor.clear
        let height = offersHeaderView.systemLayoutSizeFitting(UIView.layoutFittingCompressedSize).height
        let headerView = UITableViewHeaderFooterView(frame: CGRect(x: 0, y: 0, width: 0, height: height))
        headerView.backgroundColor = UIColor.clear
        headerView.addSubview(offersHeaderView)
        offersHeaderView.clipsToBounds = true
        offersHeaderView.snp.makeConstraints { (make) in
            make.edges.equalToSuperview()
        }
        
        let button = offersHeaderView.buttonWithTag(10)
        button?.setThemeAdvertiserDisclosure()
        button?.backgroundColor = UIColor.clear
        button?.addTarget(self, action: #selector(showAdvertisersDisclosureTooltip), for: .touchUpInside)
        disclosureButton = button
        tableView.tableHeaderView = headerView
    }