SpickerView Swift

import UIKit

class TimePopupVC: UIViewController, UIPickerViewDelegate, UIPickerViewDataSource {

    

    @IBOutlet weak var viewContent: UIView!

    @IBOutlet weak var pickerTime: UIPickerView!

    

    var delegate: AddCalendarVCProtocol?

    var listTime: [TimeSlotDTO] = []

    var listTimeValue: [String] = []

    var selectedIndex: Int = 0

    override func viewDidLoad() {

        super.viewDidLoad()

        // Do any additional setup after loading the view.

        for item in listTime {

            listTimeValue.append(item.getValue())

        }

        self.pickerTime.delegate = self

        self.pickerTime.dataSource = self

    }

    

    @IBAction func btnOKTapped(_ sender: Any) {

        delegate?.setTime(selectedIndex)

        self.dismiss(animated: true, completion: nil)

    }

    

    

    // Number of columns of data

    func numberOfComponents(in pickerView: UIPickerView) -> Int {

        return 1

    }

    

    // The number of rows of data

    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {

        return listTimeValue.count

    }

    

    // The data to return fopr the row and component (column) that's being passed in

    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {

        return listTimeValue[row]

    }

    

    func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {

        selectedIndex = row

    }

}