Which way should I follow to set system ID - ios

Question

I have global array named newSystems which contains objects of following System class:
class System: NSObject, NSCoding {
var systemView: UIViewController?
private let _systemName: String!
private let _systemType: String!
let _systemImplForCustomerID: String!
init(name: String, type: String, systemID: String) {
_systemName = name
_systemType = type
_systemImplForCustomerID = systemID
systemView = System.setSystemView(_systemType: type)
}
private static func setSystemView(_systemType: String) -> UIViewController{
var sysView: UIViewController!
switch _systemType {
case "Room":
sysView = mainStoryboard.instantiateViewController(withIdentifier: "View1") as! UINavigationController
case "Kitchen":
sysView = mainStoryboard.instantiateViewController(withIdentifier: "View2") as! KitchenVC
default:
break;
}
return sysView
}
}
Now in TabBarController I am assigning the systemView property to viewControllers array:
for system in newSystems {
if let newView = system.systemView {
self.viewControllers?.insert(newView, at: 0)
}
}
So now TabBarController shows 2 items in tabBar, both are accessible and works fine.
But now in Room I would like to use _systemImplForCustomerID
Example of RoomVC:
class RoomVC: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate, UICollectionViewDelegateFlowLayout {
#IBOutlet weak var collectionView: UICollectionView!
override func viewDidLoad() {
super.viewDidLoad()
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
var cell = UICollectionViewCell()
*** Here I need the _systemImplForCustomerID ***
return cell
}
My question is how should I get _systemImplForCustomerID property? Or which way should I follow to have it there. As temporary solution I have created function which filtering global array newSystems and works fine, but is it correct solution?
func findCustomerSystemImplID(view: UIViewController) -> String? {
var id: String?
let currentSystem = newSystems { $0.systemView?.view.accessibilityIdentifier == view.view.accessibilityIdentifier }
if let sysID = currentSystem.first?.customerSystemImplID {
id = sysID
}
return id
}