target '<Your App Target Name>' do
  pod 'RVCountryPicker', '~> 1.2.4'
end

import RVCountryPicker

let countryListManager = CountryListManager.shared
countryListManager.processCountriesList(countryListManager: countryListManager)

import UIKit
import RVCountryPicker

class ViewController: UIViewController {

    let tableViewController = CountryPickerTableViewController(style: .plain)
    
    override func viewDidLoad() {
	    super.viewDidLoad()
	
	    // CountryPickerTableViewDelegate
	    tableViewController.delegate = self
        
        // TextFieldDelegate
        countryTxtFld.delegate = self
        
        // fetch a list of countries
        let countryListManager = CountryListManager.shared
        let countriesArr = countryListManager.countries
        print("Countries: \(String(describing: countriesArr))")
    }
}

extension ViewController: UITextFieldDelegate {
    
    func textFieldDidBeginEditing(_ textField: UITextField) {
    	 // let's keep the keyboard hidden always for this demo's purpose
        textField.resignFirstResponder()
        
        // push our CountryPickerTableViewController
        self.navigationController?.pushViewController(tableViewController, animated: true)
        
        // Or, you can modally push the CountryPickerTableViewController (as it suites for your application), if so you have to change the presentationMethod to Modal as follows, so it knows how to dismiss it
        tableViewController.presentationMethod = .MODAL
        
        // Then present it
        self.present(tableViewController, animated: true, completion: nil)
    }
}

extension ViewController: CountryPickerTableViewControllerDelegate {
    
    func didSelectCountry(country: Country?) {
        if country != nil {
            self.countryTxtFld.text = country?.name
            self.countryFlagImgVw.image = country?.flagImage
            self.countryCodeLbl.text = "ISO Country Code: \(country!.isoCountryCode)"
        }
    }
}