[swift]MVPモデルでSpotifyAPIを叩いてTableViewに表示する際、遷移ができない。

MVPを学習中です。

SpotifyAPIを叩いてTableViewに表示するサンプルを作成しています。

【実現したいこと】
アクセストークンをリクエストして、返ってきたアクセストークンキーをUserDefaultsで保存後
TableViewの画面に遷移させてプレイリストを取得、表示したいのですが
画面に遷移ができません。

【ソースコード】
遷移はRouterクラスに全て任せています。

Router.swift
1import UIKit
2
3final class Router {
4  static let shared = Router()
5  private init() {}
6
7  private var window: UIWindow?
8
9  func showRoot(window: UIWindow) {
10    guard let vc = UIStoryboard.init(name: "Login", bundle: nil).instantiateInitialViewController() as? LoginViewController else {
11      return
12    }
13    //presenterとvc同士を繋ぎ合う
14      let presenter = MVPLoginPresenter(output: vc)
15    vc.inject(presenter: presenter)
16
17    let nav = UINavigationController(rootViewController: vc)
18    window.rootViewController = nav
19    window.makeKeyAndVisible()
20    self.window = window
21  }
22
23  func showList(from: UIViewController) {
24    guard let list = UIStoryboard.init(name: "List", bundle: nil).instantiateInitialViewController() as? ListViewController else {
25      return
26    }
27    //presenterとvc同士を繋ぎ合う
28    let presenter = MVPListPresenter(output: list)
29    list.inject(presenter: presenter)
30   show(from: from, to: list)
31  }
32
33  private func show(from: UIViewController, to: UIViewController, completion:(() -> Void)? = nil){
34    if let nav = from.navigationController {
35      nav.pushViewController(to, animated: true)
36      completion?()
37    } else {
38      from.present(to, animated: true, completion: completion)
39    }
40  }
41}

AppDelegate.swift
1import UIKit
2
3@main
4class AppDelegate: UIResponder, UIApplicationDelegate {
5
6    var window: UIWindow?
7    private var mvpLoginPresenterinput: MVPLoginPresenterInput!
8
9     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
10　　　//初期画面立ち上げ
11         Router.shared.showRoot(window: UIWindow(frame: UIScreen.main.bounds))
12         return true
13}
14    
15    func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
16        
17        guard let vc = UIStoryboard.init(name: "Login", bundle: nil).instantiateInitialViewController() as? LoginViewController else {
18          return true
19        }
20        //presenterとvc同士を繋ぎ合う
21          let presenter = MVPLoginPresenter(output: vc)
22         vc.inject(presenter: presenter)
23         vc.openURL(url: url)
24    return true
25    }
26
27}

MVPLoginPresenter.swift
1import Foundation
2
3
4protocol MVPLoginPresenterInput {
5 func open(url: URL)
6}
7
8
9protocol MVPLoginPresenterOutput: AnyObject {
10    func showList()
11    func openURL(url: URL)
12}
13
14final class MVPLoginPresenter {
15
16  private weak var output: MVPLoginPresenterOutput!
17
18 
19  private var playListModel: [item]
20
21    init(output: MVPLoginPresenterOutput) {
22    self.output = output
23    self.playListModel = []
24  }
25}
26
27extension MVPLoginPresenter: MVPLoginPresenterInput {
28
29    func open(url: URL) {
30        guard let queryItems = URLComponents(string: url.absoluteString)?.queryItems,
31              let code = queryItems.first(where: {$0.name == "code"})?.value,
32              let getState = queryItems.first(where: {$0.name == "state"})?.value,
33              getState == API.shared.stateStr
34        else {
35            return
36        }
37        
38        // `code`を引数として渡して、トークンリクエストをする
39        API.shared.postAuthorizationCode(code: code) { [weak self] accessToken, error in
40            if let _error = error {
41                print(_error.localizedDescription)
42                return
43            }
44            guard let _accessToken = accessToken else {
45                return
46            }
47            // キーを保持
48            UserDefaults.standard.spotifyAccessToken = _accessToken.access_token
49　　　　//ここで画面遷移を呼びたいが呼ばれない
50            self?.output.showList()
51        }
52        
53    }
54    
55}
56

LoginViewController.swift
1import UIKit
2
3final class LoginViewController: UIViewController {
4    
5    @IBOutlet weak var loginButton: UIButton!{
6    didSet {
7        loginButton.addTarget(self, action: #selector(tapAuthButton), for: .touchUpInside)
8        }
9    }
10    
11    @objc private func tapAuthButton(){
12        UIApplication.shared.open(API.shared.oAuthURL,options: [:])
13    }
14    
15    override func viewDidLoad() {
16        super.viewDidLoad()
17    }
18    
19    private var presenter: MVPLoginPresenterInput!
20    func inject(presenter: MVPLoginPresenterInput) {
21      self.presenter = presenter
22    }
23}
24
25extension LoginViewController:MVPLoginPresenterOutput{
26    func openURL(url: URL) {
27        presenter.open(url: url)
28    }
29    
30    func showList() {
31　　//ここが呼ばれない
32     Router.shared.showList(from: self)
33    }
34    
35}