回答編集履歴

追記

2018/02/19 07:46

投稿

fromageblanc

スコア2724

test CHANGED Viewed

@@ -83,3 +83,451 @@
 何をやってるのかを理解したあとにデリゲートパタンにリファクタリングするのが良いと思います。
+## 追記：サンプルコード
+ViewController.swift
+```Swift
+import UIKit
+/*
+ PickerViewは乗ってないからUIPickerViewDelegate,UIPickerViewDataSourceはいらない
+ */
+class ViewController: UIViewController /*,UIPickerViewDelegate,UIPickerViewDataSource*/ {
+    var data:[String]  = []
+    @IBOutlet weak var mytableView: UITableView!
+//    var pickerView = UIPickerView()
+//    let number = ["回","lep"]
+//    let datalist2 = ["kg","lbs"]
+    @IBAction func customalertbtr(_ sender: Any) {
+        let customAlert = CustomAlert(frame: CGRect(x: 0.0, y: 0.0, width: 350 , height: 275))
+        customAlert.center = self.view.center
+        customAlert.backgroundColor = .orange
+        // ViewControllerの参照をセット
+        customAlert.delegate = self
+        //print(customAlert) //これ追加
+        self.view.addSubview(customAlert)
+    }
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view, typically from a nib.
+        mytableView.dataSource = self
+        mytableView.register(UITableViewCell.self, forCellReuseIdentifier: "Cell")
+    }
+    override func didReceiveMemoryWarning() {
+        super.didReceiveMemoryWarning()
+        // Dispose of any resources that can be recreated.
+    }
+}
+// データ・ソース
+extension ViewController: UITableViewDataSource {
+    // データ数
+    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        return data.count
+    }
+    // セクション数
+    func numberOfSections(in tableView: UITableView) -> Int {
+        return 1
+    }
+    // セルの高さ
+    func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
+        return 40
+    }
+    // セル生成
+    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
+        cell.textLabel?.text = data[indexPath.row]
+        return cell
+    }
+}
+extension ViewController: CustomAlertDelegate {
+    func appendData(str:String) {
+        // CustomAlertで作成した文字列をデータに追加
+        data.append(str)
+        // tableViewをリロード
+        mytableView.reloadData()
+    }
+}
+```
+CustomAlert.swift
+```Swift
+import UIKit
+// プロトコル
+protocol CustomAlertDelegate {
+    func appendData(str:String)
+}
+class CustomAlert: UIView ,UIPickerViewDataSource,UIPickerViewDelegate {
+    //lepsに関して
+    let item = ["-5","-4","-3","-2","-1","0","1","2","3","4","5",]
+    var lepsSelectedIndex = 0
+    let kgLbsArr = ["円","ドル"]
+    var kgLbsSelectedIndex = 0
+    let difficulityArr = ["安い","普通","高い"]
+    var difficulitySelectedIndex = 0
+    var delegate:CustomAlertDelegate? // 他クラス(今回はViewController)の参照を格納するための変数
+    @IBOutlet var myview: UIView!
+    @IBOutlet weak var titlelbl: UILabel!
+    @IBOutlet weak var exlbl: UILabel!
+    @IBOutlet weak var lepstxt: UITextField!
+    @IBOutlet weak var kgtxt: UITextField!
+    @IBOutlet weak var lepslbl: UILabel!
+    @IBOutlet weak var lepspicker: UIPickerView!
+    @IBAction func kglbs(_ sender: Any)
+    {
+        switch (sender as AnyObject).selectedSegmentIndex {
+        case 0:
+            //mytableView.text = "kg"
+            print("kg")
+        case 1:
+            //mytableView.text = "lbs"
+            print("lbs")
+        default: break
+        }
+        kgLbsSelectedIndex = (sender as! UISegmentedControl).selectedSegmentIndex
+    }
+    @IBAction func difficulty(_ sender: Any)
+    {
+        switch (sender as AnyObject).selectedSegmentIndex {
+        case 0:
+            kgtxt.textColor = UIColor.blue
+        case 1:
+            kgtxt.textColor = UIColor.red
+        case 2: //3:
+            kgtxt.textColor = UIColor.darkGray
+        default: break
+        }
+        difficulitySelectedIndex = (sender as! UISegmentedControl).selectedSegmentIndex
+    }
+    //コードから
+    override init(frame: CGRect) {
+        super.init(frame: frame)
+        self.commonInit()
+    }
+    //ストボーから
+    required init?(coder aDecoder: NSCoder) {
+        super.init(coder: aDecoder)
+        self.commonInit()
+    }
+    fileprivate func commonInit() {
+        guard let view = UINib(nibName: "CustomAlert", bundle: nil).instantiate(withOwner: self, options: nil).first as? UIView else {
+            return
+        }
+        //textfieldに関して
+        lepstxt.placeholder = "個数を入力してください。"
+        kgtxt.placeholder = "値段を入力してください。"
+        lepstxt.font = UIFont(name: "Hiragino Sans", size: 11)
+        kgtxt.font = UIFont(name: "Hiragino Sans", size: 11)
+        //デリゲート設定
+        lepspicker.delegate = self
+        lepspicker.dataSource = self
+        //lepspicker.selectedRow(inComponent: 6)
+        //lepspicker.backgroundColor = .gray
+        view.frame = self.bounds
+        self.addSubview(view)
+    }
+    @IBAction func cancel(_ sender: Any) {
+        self.removeFromSuperview()
+    }
+    @IBAction func ok(_ sender: Any) {
+        let lepsVal = lepstxt.text
+        let kgtVal = kgtxt.text
+        let lepsLbl = lepslbl.text
+        let num = item[lepsSelectedIndex]
+        //mytbleView.text = String(item,array)
+        let cellString = lepsVal! + "が" + num + "(" + lepsLbl! + ")" + " " + kgtVal! + "[" + kgLbsArr[kgLbsSelectedIndex] + "]" + " " + difficulityArr[difficulitySelectedIndex]
+        // ViewControllerのメソッドを実行
+        delegate?.appendData(str: cellString)
+        // アラート閉じる
+        self.removeFromSuperview()
+    }
+    // PickerViewの列数
+    func numberOfComponents(in pickerView: UIPickerView) -> Int {
+        return 1
+    }
+    // PickerViewの行数
+    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
+        return item.count
+    }
+    // PickerViewの項目
+    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
+        return item[row]
+    }
+    // PickerViewの項目選択時
+    func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
+        lepsSelectedIndex = row
+    }
+}
+```