ViewController 간에 데이터 전송

딜리게이트 프로토콜로 한다.!!

1. 호출하는놈

딜리게이트 연결

let destView: BYearTableViewController = segue.destination as! BYearTableViewController

destView.mDelegate = self

extension MembJoinTableViewController: BYearSelectedDelegate {

    func sendBYear(data: String) {

        uiByear.text = data

    }

}

2. 받아서 리턴 해주는놈

protocol BYearSelectedDelegate {

    func sendBYear(data: String)

}

class BYearTableViewController: UITableViewController {

    var mDelegate: BYearSelectedDelegate?

override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {

        let selectedYear: String = String(mYear[indexPath.row])

        print("####didSelectRowAt \(selectedYear)")

        

        mDelegate?.sendBYear(data: selectedYear)

        //dismiss(animated: true, completion: nil)

        self.navigationController?.popViewController(animated: true)

    }