質問編集履歴

見やすくしました。

2018/08/29 11:57

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@@ -144,69 +144,11 @@
 ```
-```thirdviewcotroller
- var Datalist:Int = 0
-    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
-        let nextView = segue.destination as! ViewController
-        nextView.image = self.imageView.image
-        guard let ViewController = segue.destination as? ViewController else {
-            fatalError()
-        }
-        ViewController.image = self.imageView.image
-        ViewController.Datalist = self.Datalist
-    }
- func goToViewController () {
-        self.performSegue(withIdentifier: "ViewController", sender: nil)
-    }
-```
 ```viewcntoroller
- var Datalist:Int = 2
-    override func viewDidLoad() {
-        super.viewDidLoad()
-            print(Datalist)
-        if Datalist == 2 {
-            self.view.backgroundColor = UIColor(patternImage: UIImage(named: "sakura.jpg")!)
-        }
-        else{self.view.backgroundColor = UIColor (patternImage: UIImage(named: "vacation")!)
-        }
-        // Do any additional setup after loading the view, typically from a nib.
-        yourlavel.text = ""
-        self.imageView.image = image
-    }
 var image: UIImage?

追加しました

2018/08/29 11:57

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@@ -208,4 +208,28 @@
     }
+var image: UIImage?
+    var arigatou = "ありがとう"
+    var douitasimasite = "どういたしまして"
+ @IBAction func display(_ sender: Any)
+    {
+        self.yourlavel.text = self.textfield.text
+        if arigatou == self.textfield.text{
+            yourlavel.text = String("どういたしまして")
+        } else if douitasimasite == self.textfield.text {
+            yourlavel.text = String("いえいえ")
+        }
 ```

コードを追加しました。

2018/08/29 09:23

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@@ -1,35 +1,211 @@
 pickerの操作によって二つ先のlavelに打ち込んだ時のtextfieldに出てくる文字を変えたいのですがうまくいきません。施工した策としましては一つある画面遷移のコードにもう一つ画面遷移をさせてif文で文字を変化させようとしましたがエラーが発生しました。画面遷移に関しては全く理解してないのでどうすれば良いか教えていただきますようよろしくお願いします。
-```second view controller
+```secondviewcotroller
+import UIKit
+class secondViewController: UIViewController,UIPickerViewDelegate,UIPickerViewDataSource {
+    @IBOutlet weak var seibetupicker: UIPickerView!
+    @IBOutlet weak var agepicker: UIPickerView!
+var selectedSeibetu: String?
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        seibetupicker.delegate = self
+        seibetupicker.dataSource = self
+        agepicker.delegate = self
+        agepicker.dataSource = self
+ override func didReceiveMemoryWarning() {
+        super.didReceiveMemoryWarning()
+        agepicker.numberOfRows(inComponent: 0)
+        // Dispose of any resources that can be recreated.
+    }
+    func numberOfComponents(in pickerView: UIPickerView) -> Int {
+        // 表示する列数
+        return 1
+    }
+    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
+        switch pickerView {
+        case agepicker:
+            return agedataList.count
+        case seibetupicker:
+            return seibetudataList.count
+        default:
+            fatalError()
+        }
+    }
-let agedataList = ["指定なし","10代","20代","30代","40代","50代","60代","70代","80代","90代"]
+func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
+        switch pickerView {
+        case agepicker:
+            return agedataList[row]
+        case seibetupicker:
+            return seibetudataList[row]
+       default:
+            fatalError()
+        }
+    }
+ func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
+        if pickerView == seibetupicker {
+            selectedSeibetu = seibetudataList[row]
+        }
+    }
+    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
+        if segue.identifier == "ThirdViewController" {
+            guard let thirdVC = segue.destination as? ThirdViewController else {
+                fatalError()
+            }
+            let seibetu = seibetupicker.selectedRow(inComponent:0)
+            if (seibetu == 2){
+                thirdVC.Datalist = 2
+            }else{
+                thirdVC.Datalist = 0
+            }
+        }
+    }
+}
 ```
-年齢によって返答するのを変化させたいのです。
-遷移先はこのようになっています。　返答の仕組みはこうなっています。
-```View controller
+```thirdviewcotroller
-var arigatou = "ありがとう"
+ var Datalist:Int = 0
+    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
-var konnitiha = "こんにちは"
+        let nextView = segue.destination as! ViewController
-if arigatou == self.textfield.text{
+        nextView.image = self.imageView.image
-            yourlavel.text = String("どういたしまして")
+        guard let ViewController = segue.destination as? ViewController else {
+            fatalError()
-        }
+        }
- else if konnitiha == self.textfield.text {
+        ViewController.image = self.imageView.image
-            yourlavel.text = String("こんにちは")
+        ViewController.Datalist = self.Datalist
-        }
+    }
+ func goToViewController () {
+        self.performSegue(withIdentifier: "ViewController", sender: nil)
+    }
 ```
+```viewcntoroller
+ var Datalist:Int = 2
+    override func viewDidLoad() {
+        super.viewDidLoad()
+            print(Datalist)
+        if Datalist == 2 {
+            self.view.backgroundColor = UIColor(patternImage: UIImage(named: "sakura.jpg")!)
+        }
+        else{self.view.backgroundColor = UIColor (patternImage: UIImage(named: "vacation")!)
+        }
+        // Do any additional setup after loading the view, typically from a nib.
+        yourlavel.text = ""
+        self.imageView.image = image
+    }
+```