Swift - error with results after using searchbar - swift

Question

I have little bit problem with my search bar. As you see on screens. When I dont filter anything and i click on first, it shows me first detail screen, when I click on second, it shows me second screen with detail, but when I filter something for example second (like in last screen) and click on result, it shows me first screen, which is wrong, I want to see second screen with detail. My code is here:
import UIKit
//array definiton
var names = [String]()
var namesDesc = [String]()
var namesDescWhereTo = [String]()
var imageArr = [UIImage(named: "Alobal")!,UIImage(named: "Akumulátory")!,UIImage(named: "Akvária")!,UIImage(named: "Autovrak")!,UIImage(named: "Autosklo")!]
var myIndex = 0
class mainTableViewController: UITableViewController, UISearchResultsUpdating {
//definition variables for VC
var namesTableView = names
var filteredNames = [String]()
var searchController : UISearchController!
var resultsController = UITableViewController()
override func viewDidLoad() {
super.viewDidLoad()
//load file with names - names.txt
do {
//definice názvu souboru + oddělovače
if let path = Bundle.main.path(forResource: "names", ofType: "txt"){
let data = try String(contentsOfFile:path, encoding: String.Encoding.utf8)
names = data.components(separatedBy: "\n")
}
} catch let err as NSError {
//pokud je nějaký error
print(err)
}
//load file with descriptions - namesDesc.txt
do {
//definice názvu souboru + oddělovače
if let path = Bundle.main.path(forResource: "namesDesc", ofType: "txt"){
let data = try String(contentsOfFile:path, encoding: String.Encoding.utf8)
namesDesc = data.components(separatedBy: "\n")
}
} catch let err as NSError {
//pokud je nějaký error
print(err)
}
//load file with information "where to" - namesDescWhereTo.txt
do {
//definice názvu souboru + oddělovače
if let path = Bundle.main.path(forResource: "namesDescWhereTo", ofType: "txt"){
let data = try String(contentsOfFile:path, encoding: String.Encoding.utf8)
namesDescWhereTo = data.components(separatedBy: "\n")
}
} catch let err as NSError {
//pokud je nějaký error
print(err)
}
namesTableView = names
//definiton main title + call method setupNavBar()
self.title = "Where to?"
setupNavBar()
self.resultsController.tableView.dataSource = self
self.resultsController.tableView.delegate = self
self.searchController = UISearchController(searchResultsController: self.resultsController)
self.tableView.tableHeaderView = self.searchController.searchBar
self.searchController.searchResultsUpdater = self
self.searchController.dimsBackgroundDuringPresentation = false
definesPresentationContext = true
}
//method where I define large titles
func setupNavBar() {
navigationController?.navigationBar.prefersLargeTitles = true
}
func updateSearchResults(for searchController: UISearchController) {
self.filteredNames = self.namesTableView.filter { (name:String) -> Bool in
if name.lowercased().contains(self.searchController.searchBar.text!.lowercased()) {
return true
} else {
return false
}
}
//reloading
self.resultsController.tableView.reloadData()
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if tableView == self.tableView {
return self.namesTableView.count
} else {
return self.filteredNames.count
}
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = UITableViewCell()
if tableView == self.tableView {
cell.textLabel?.text = self.namesTableView[indexPath.row]
} else {
cell.textLabel?.text = self.filteredNames[indexPath.row]
}
return cell
}
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
myIndex = indexPath.row
performSegue(withIdentifier: "segue", sender: self)
}
}
Thanks for help.

Answer 1

In all your other datasource methods (cellForRow, numberOfRows etc), you did this:
if tableView == self.tableView {
// use the normal data source array
} else {
// use the filtered data source array
}
So why not do this in prepareForSegue, where you pass the item corresponding to myIndex to the next controller?
You don't have an instance of the tableView so you can't check whether the user is searching, can you?
Other than checking whether the passed in table view is the original table view, you can check the isActive property of searchController:
if searchController.isActive && searchController.searchBar.text != "" {
// use the filtered data
} else {
// use the normal data
}

Answer 2

#Sweeper I added prepareForSegue, but problem is same :( in the destination VC after filtering i cant see right results. This i add to main VC.
override func prepare(
for segue: UIStoryboardSegue, sender: Any ? ) {
if segue.identifier == "segue" {
if let indexPath = tableView.indexPathForSelectedRow {
let resultName: String
if isFiltering() {
resultName = filteredNames[indexPath.row]
} else {
resultName = namesTableView[indexPath.row]
}
let controller = segue.destination as!ViewController
controller.test = resultName
}
}}
And this I have in destination VC in viewDidLoad():
title = test
recLabelDesc.text = test