Swift - search table view with multiple selection - xcode

Question

I have followed a tutorial of Vea software (https://www.veasoftware.com/tutorials/2015/6/27/uisearchcontroller-in-swift-xcode-7-ios-9-tutorial) to create a table view with search bar on xcode 7, ios 9. Now I need to select multiple rows from the table view by adding a checkmark on each row when selected, the problem is that when I use the search bar the checkmarks don't match the rows anymore..
Here's my code:
class SportSearchTableViewController: UITableViewController, UISearchResultsUpdating {
let appleProducts = ["Mac","iPhone","Apple Watch","iPad"]
var filteredAppleProducts = [String]()
var resultSearchController = UISearchController()
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
tableView.deselectRowAtIndexPath(indexPath,animated: true)
let selectedRow = tableView.cellForRowAtIndexPath(indexPath)!
if selectedRow.accessoryType == UITableViewCellAccessoryType.None {
selectedRow.accessoryType = UITableViewCellAccessoryType.Checkmark
selectedRow.tintColor = UIColor.blueColor()
} else {
selectedRow.accessoryType = UITableViewCellAccessoryType.None
}
}
override func viewDidLoad() {
super.viewDidLoad()
self.resultSearchController = UISearchController(searchResultsController: nil)
self.resultSearchController.searchResultsUpdater = self
self.resultSearchController.dimsBackgroundDuringPresentation = false
self.resultSearchController.searchBar.sizeToFit()
self.tableView.tableHeaderView = self.resultSearchController.searchBar
self.tableView.reloadData()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// MARK: - Table view data source
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
// #warning Incomplete implementation, return the number of sections
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if (self.resultSearchController.active)
{
return self.filteredAppleProducts.count
}
else
{
return self.appleProducts.count
}
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as UITableViewCell?
if (self.resultSearchController.active)
{
cell!.textLabel?.text = self.filteredAppleProducts[indexPath.row]
return cell!
}
else
{
cell!.textLabel?.text = self.appleProducts[indexPath.row]
return cell!
}
}
func updateSearchResultsForSearchController(searchController: UISearchController)
{
self.filteredAppleProducts.removeAll(keepCapacity: false)
let searchPredicate = NSPredicate(format: "SELF CONTAINS[c] %#", searchController.searchBar.text!)
let array = (self.sportsList as NSArray).filteredArrayUsingPredicate(searchPredicate)
self.filteredAppleProducts = array as! [String]
self.tableView.reloadData()
}
Does anyone know how to fix that?