search box in table view

//
//  ViewController.swift
//  SearchTableView
//
//  Created by Andriy Aleksyeyev on 5/26/19.
//  Copyright © 2019 Andriy Aleksyeyev. All rights reserved.
//

import UIKit

class ViewController: UIViewController, UITableViewDelegate ,UITableViewDataSource, UISearchResultsUpdating {
    
    let myInfo = ["San Diego","Los Angeles","New-York","Paris"]
    var filteredInfo = [String]()
    var resultSearchController = UISearchController()
    
    
    
    
    
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        if  (resultSearchController.isActive) {
            return filteredInfo.count
        } else {
            return myInfo.count
        }
    }
    
    
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
        
        if (resultSearchController.isActive) {
            cell.textLabel?.text = filteredInfo[indexPath.row]
            
            return cell
        }
        else {
            cell.textLabel?.text = myInfo[indexPath.row]
            print(myInfo[indexPath.row])
            return cell
        }
    }
    
    
    
    func updateSearchResults(for searchController: UISearchController) {
        filteredInfo.removeAll(keepingCapacity: false)
        
        let searchPredicate = NSPredicate(format: "SELF CONTAINS[c] %@", searchController.searchBar.text!)
        let array = (myInfo as NSArray).filtered(using: searchPredicate)
        filteredInfo = array as! [String]
        
        self.tableView.reloadData()
    }
    
    
    
    
    @IBOutlet weak var tableView: UITableView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        resultSearchController = ({
            let seachController = UISearchController(searchResultsController: nil)
            seachController.searchResultsUpdater = self
            seachController.dimsBackgroundDuringPresentation = false
            seachController.searchBar.sizeToFit()
            
            tableView.tableHeaderView = seachController.searchBar
            
            return seachController
        })()
        
        tableView.reloadData()
    }
}