TableViewでの値渡し　(CustomCell)

TableView (CustomCell)での値渡し

CustomCellでTableViewを作ったのですが、セルごとに各項目で違う値を表示したいため値渡しが必要なのですが、実行すると値が渡っておらず、対象のTableViewを表示できません。
独学でプログラミングを始めて1ヶ月ほどなのでわかりやすく解決方法を教えてくださると嬉しいです。

発生している問題・エラーメッセージ

Swift
1エラーメッセージなし

該当のソースコード

Swift
1//
2//  iPhoneMenu_ViewController.swift
3//  NewsReader
4//
5//  Created by LATA on 2021/02/07.
6//
7
8import UIKit
9
10class iPhoneMenu_ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
11    
12    var iPhoneName = ["iPhone（初代）","iPhone3G","iPhone3GS","iPhone4","iPhone4s","iPhone5","iPhone5c","iPhone5s","iPhone6","iPhone6 Plus","iPhone6s","iPhone6s Plus","iPhoneSE","iPhone7","iPhone7 Plus","iPhone8","iPhone8 Plus","iPhoneX","iPhoneXS","iPhoneXS Max","iPhoneXR","iPhone11","iPhone11Pro","iPhone11Pro Max","iPhoneSE(2nd)","iPhone12mini","iPhone12","iPhone12Pro","iPhone12Pro Max"]
13    var iPhoneDate = ["2007/06/29 (金)","2008/07/11 (金)","2009/06/26 (金)","2010/06/24 (木)","2011/10/14 (金)","2012/09/21 (金)","2013/09/20 (金)","2013/09/20 (金)","2014/09/19 (金)","2014/09/19 (金)","2015/09/25 (金)","2015/09/25 (金)","2016/03/31 (木)","2016/09/16 (金)","2016/09/16 (金)","2017/09/22 (金)","2017/09/22 (金)","2017/11/03 (金)","2018/09/21 (金)","2018/09/21 (金)","2018/10/26 (金)","2019/09/20 (金)","2019/09/20 (金)","2019/09/20 (金)","2020/04/24 (金)","2020/11/13 (金)","2020/10/23 (金)","2020/10/23 (金)","2020/11/13 (金)"]
14    var iPhoneImage = ["iPhone","iPhone3G","iPhone3GS","iPhone4","iPhone4s","iPhone5","iPhone5c","iPhone5s","iPhone6","iPhone6 Plus","iPhone6s","iPhone6s Plus","iPhoneSE (第一世代)","iPhone7","iPhone7 Plus","iPhone8","iPhone8 Plus","iPhoneX","iPhoneXS","iPhoneXS Max","iPhoneXR","iPhone11","iPhone11Pro","iPhone11Pro Max","iPhoneSE (第二世代)","iPhone12mini","iPhone12","iPhone12Pro","iPhone12Pro Max"]
15    
16    
17    @IBOutlet weak var tableView: UITableView!
18        
19    override func viewDidLoad() {
20        super.viewDidLoad()
21        tableView.dataSource = self
22        tableView.delegate = self
23
24        // Do any additional setup after loading the view.
25        
26        tableView.register(UINib(nibName: "iPhoneTableViewCell", bundle: nil), forCellReuseIdentifier: "iPhonecustomCell")
27    }
28    
29    func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
30            return 60
31        }
32    
33    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
34        return iPhoneName.count
35    }
36    
37    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
38        let cell = tableView.dequeueReusableCell(withIdentifier: "iPhonecustomCell", for: indexPath) as! iPhoneTableViewCell
39        cell.iPhoneName.text = iPhoneName[indexPath.row]
40        cell.iPhoneDate.text = iPhoneDate[indexPath.row]
41        cell.iPhoneImage.image = UIImage(named: iPhoneImage[indexPath.row])
42        return cell
43        }
44    
45    
46    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
47        //画面が表示された時にハイライトを消す（ハイライトが徐々に消える）
48        if let indexPathForSelectedRow = tableView.indexPathForSelectedRow {
49            tableView.deselectRow(at: indexPathForSelectedRow, animated: true)
50        }
51        
52        performSegue(withIdentifier: "toiPhone", sender: indexPath.row)
53            
54            // performSegue(withIdentifier: "toTestView", sender: nil)
55        
56    }
57    
58    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
59        if segue.identifier == "toiPhone" {
60            if let row = tableView.indexPathForSelectedRow?.row {
61                let vc = segue.destination as! iPhoneViewController
62                vc.Sendtext = "(iPhoneName[row])"
63                print(iPhoneName[row])
64            }
65        }
66                
67    }
68    
69    
70    var alertController: UIAlertController!
71    func alert(title:String, message:String) {
72            alertController = UIAlertController(title: title,
73                                       message: message,
74                                       preferredStyle: .alert)
75            alertController.addAction(UIAlertAction(title: "OK",
76                                           style: .default,
77                                           handler: nil))
78            present(alertController, animated: true)
79        }
80    
81    func tableView(_ tableView: UITableView, trailingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration? {
82
83            // コピー1のアクションを設定する
84            let copy1Action = UIContextualAction(style: .normal  , title: "製品名\nコピー") { [self]
85                (ctxAction, view, completionHandler) in
86                UIPasteboard.general.string = iPhoneName[indexPath.row]
87                completionHandler(true)
88                alert(title: "製品名コピー",message: "製品名をコピーしました。")
89            }
90            // コピー1のデザインを設定する
91            let copy1Image = UIImage(contentsOfFile: "製品名\nコピー")?.withTintColor(UIColor.white, renderingMode: .alwaysTemplate)
92            copy1Action.image = copy1Image
93            copy1Action.backgroundColor = UIColor(red: 0/255, green: 125/255, blue: 255/255, alpha: 1)
94
95        
96            // コピー2のアクションを設定する
97            let copy2Action = UIContextualAction(style: .normal, title:"発売日\nコピー") { [self]
98                (ctxAction, view, completionHandler) in
99                UIPasteboard.general.string = iPhoneDate[indexPath.row]
100                completionHandler(true)
101                alert(title: "発表日コピー",message: "発表日をコピーしました。")
102
103            }
104            // コピー2のデザインを設定する
105        let copy2Image = UIImage(contentsOfFile:"発売日\nコピー")?.withTintColor(UIColor.white , renderingMode: .alwaysTemplate)
106            copy2Action.image = copy2Image
107            copy2Action.backgroundColor = UIColor(red: 255/255, green: 0/255, blue: 0/255, alpha: 1)
108        
109        
110            // コピー3のアクションを設定する
111            let copy3Action = UIContextualAction(style: .normal  , title: "全て\nコピー") { [self]
112                (ctxAction, view, completionHandler) in
113                UIPasteboard.general.string = "(iPhoneName[indexPath.row]) (iPhoneDate[indexPath.row])"
114                completionHandler(true)
115                alert(title: "製品名/発表日コピー",message: "製品名/発表日をコピーしました。")
116             }
117            // コピー3のデザインを設定する
118        let copy3Image = UIImage(contentsOfFile: "全て\nコピー")?.withTintColor(UIColor.white, renderingMode: .alwaysTemplate)
119            copy3Action.image = copy3Image
120            copy3Action.backgroundColor = UIColor(red: 0/255, green: 225/255, blue: 0/255, alpha: 1)
121
122            // スワイプでの削除を無効化して設定する
123            let swipeAction = UISwipeActionsConfiguration(actions:[copy3Action, copy2Action, copy1Action])
124            swipeAction.performsFirstActionWithFullSwipe = false
125            
126            
127            return swipeAction
128
129        }
130    
131
132    /*
133    // MARK: - Navigation
134
135    // In a storyboard-based application, you will often want to do a little preparation before navigation
136    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
137        // Get the new view controller using segue.destination.
138        // Pass the selected object to the new view controller.
139    }
140    */
141
142}
143

試したこと

検索してみましたが値を渡す最善の方法が見つからず、現在に至ります。

行動規範の内容に同意します

回答1件

ベストアンサー

Swift
1    tableView.deselectRow(at: indexPathForSelectedRow, animated: true)

これを実行すると、tableView.indexPathForSelectedRow?は nil になってしまします。

一方、

Swift
1    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
2    
3        performSegue(withIdentifier: "toiPhone", sender: indexPath.row)
4    }

このような感じで performSegue(withIdentifier:sender:)の第二引数で indexPath.row を渡すのであれば、

Swift
1    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
2        if segue.identifier == "toiPhone" {
3            if let row = sender as? Int {
4                print(iPhoneName[row])
5            }
6        }
7    }