Swift - Erwartete Deklaration In der Deklaration von 'View Controller'

Question

HINWEIS: Ich unterrichte mich selbst. Ich habe die letzten Tage mit Swift gearbeitet. Ich habe eine App, die mir die Grundlagen beibringt.

Ok, also habe ich gelesen und ich habe 2 mögliche Gründe für diesen Fehler gefunden. 1. Ist, dass ich Code nicht in einer Methode/Funktion 2. Ist ich bin fehlt}

So hebt es nur das:

class ViewController: UIViewController, UIPickerViewDelegate 

Er stellt auch einen kleinen roten Pfeil unter das V in ViewController. Dann wird der Fehler lautet:

1. In der Erklärung von 'View Controller'

Ich bin nicht sicher, was sonst könnte eine Möglichkeit sein. Der einzige Code, der nicht Teil einer Funktion ist, sind die Array-Deklarationen. Ich setze diese direkt nach den @IBOutlets und direkt vor der Override-Funktion. Alles andere ist in der Override-Funktion oder einer Funktion.

import UIKit 

class ViewController: UIViewController, UIPickerViewDelegate 
{ 
    // connects the text fields 
    @IBOutlet var raceViewer: UITextField! 
    @IBOutlet var strStat: UITextField! 
    @IBOutlet var dexStat: UITextField! 
    @IBOutlet var conStat: UITextField! 
    @IBOutlet var intStat: UITextField! 
    @IBOutlet var wisStat: UITextField! 
    @IBOutlet var chrStat: UITextField! 

    // connects stats for human, half-elf, half-orc 
    @IBOutlet var singleStat: UITextField! 

    // connects the picker views 
    @IBOutlet var racePicker: UIPickerView! 
    @IBOutlet var statPicker: UIPickerView! 
    @IBOutlet var singleStatPicker: UIPickerView! 

    // connects the labels for the race modifications 
    @IBOutlet var raceStr: UILabel! 
    @IBOutlet var raceDex: UILabel! 
    @IBOutlet var raceCon: UILabel! 
    @IBOutlet var raceInt: UILabel! 
    @IBOutlet var raceWis: UILabel! 
    @IBOutlet var raceChr: UILabel! 

    // connects the labels for final modification 


    // connects the labels for mod 



    // defines the arrays 
    var races = ["","Dwarf","Elf","Gnome","Half-Elf","Half-Orc","Halfling","Human","Ifrit","Oread","Sylph","Tengu","Undine","Kitsune","Nagaji","Wayang"] 
    var abilStats = ["","7","8","9","10","11","12","13","14","15","16","17","18"] 
    var single = ["Strength","Dexterity","Constitution","Intelligence","Wisdom","Charisma"] 

    override func viewDidLoad() 
    { 
     super.viewDidLoad() 
     racePicker = UIPickerView() 
     statPicker = UIPickerView() 
     singleStatPicker = UIPickerView() 

     racePicker.delegate = self 
     statPicker.delegate = self 
     singleStatPicker.delegate = self 

     self.raceViewer.inputView = self.racePicker 
     self.singleStat.inputView = self.singleStatPicker 
     self.strStat.inputView = self.statPicker 
     self.dexStat.inputView = self.statPicker 
     self.conStat.inputView = self.statPicker 
     self.intStat.inputView = self.statPicker 
     self.wisStat.inputView = self.statPicker 
     self.chrStat.inputView = self.statPicker 

     // set the tags for the pickerview 
     racePicker.tag = 0 
     statPicker.tag = 1 
     singleStatPicker.tag = 2 

     // Do any additional setup after loading the view, typically from a nib. 
     //let racePickerView = UIPickerView() 
     //racePickerView.delegate = self 
     //raceViewer.inputView = racePicker 

     singleStat.isHidden = true 
    } 

    override func didReceiveMemoryWarning() 
    { 
     super.didReceiveMemoryWarning() 
     // Dispose of any resources that can be recreated. 
    } 


    func numberOfComponentsInPickerView(_ pickerView: UIPickerView) -> Int 
    { 
     return 1 
    } 

    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int 
    { 
     if pickerView.tag == 0 
     { 
      return races.count 
     } 
     else if pickerView.tag == 1 
     { 
      return abilStats.count 
     } 
     else if pickerView.tag == 2 
     { 
      return single.count 
     } 
     return 1 
    } 

    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? 
    { 
     if pickerView.tag == 0 
     { 
      return races[row] 
     } 
     else if pickerView.tag == 1 
     { 
      return abilStats[row] 
     } 
     else if pickerView.tag == 2 
     { 
      return single[row] 
     } 

     return "" 
    } 

    func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) 
    { 
     if pickerView.tag == 0 
     { 
      raceViewer.text = races[row] 

      // Dwarf 
      if raceViewer.text == races[1] 
      { 
       // values changed 
       raceCon.text = "2" 
       raceWis.text = "2" 
       raceChr.text = "-2" 

       // values reset 
       raceStr.text = "0" 
       raceDex.text = "0" 
       raceInt.text = "0" 

       // hides the singleStat text field 
       singleStat.isHidden = true 
      } 

      // Elf 
      else if raceViewer.text == races[2] 
      { 
       // values changed 
       raceDex.text = "2" 
       raceCon.text = "-2" 
       raceInt.text = "2" 

       // values reset 
       raceStr.text = "0" 
       raceWis.text = "0" 
       raceChr.text = "0" 

       // hides the singleStat text field 
       singleStat.isHidden = true 
      } 

      // Gnome 
      else if raceViewer.text == races[3] 
      { 
       // values changed 
       raceStr.text = "-2" 
       raceCon.text = "2" 
       raceChr.text = "2" 

       // values reset 
       raceDex.text = "0" 
       raceInt.text = "0" 
       raceWis.text = "0" 

       // hides the singleStat text field 
       singleStat.isHidden = true 
      } 

      // Half-Elf 
      else if raceViewer.text == races[4] 
      { 
       // values reset 
       raceStr.text = "0" 
       raceDex.text = "0" 
       raceCon.text = "0" 
       raceInt.text = "0" 
       raceWis.text = "0" 
       raceChr.text = "0" 

       // shows the singleStat text field 
       singleStat.isHidden = false 
      } 

      // Half-Orc 
      else if raceViewer.text == races[5] 
      { 
       // values reset 
       raceStr.text = "0" 
       raceDex.text = "0" 
       raceCon.text = "0" 
       raceInt.text = "0" 
       raceWis.text = "0" 
       raceChr.text = "0" 

       // shows the singleStat text field 
       singleStat.isHidden = false 
      } 

      // Halfling 
      else if raceViewer.text == races[6] 
      { 
       // values changed 
       raceStr.text = "-2" 
       raceDex.text = "2" 
       raceChr.text = "2" 

       // values reset 
       raceCon.text = "0" 
       raceInt.text = "0" 
       raceWis.text = "0" 

       // hides the singleStat text field 
       singleStat.isHidden = true 
      } 

      // Human 
      else if raceViewer.text == races[7] 
      { 
       // values reset 
       raceStr.text = "0" 
       raceDex.text = "0" 
       raceCon.text = "0" 
       raceInt.text = "0" 
       raceWis.text = "0" 
       raceChr.text = "0" 

       // shows the singleStat text field 
       singleStat.isHidden = false 
      } 

      // Ifrit 
      else if raceViewer.text == races[8] 
      { 
       // values changed 
       raceDex.text = "2" 
       raceWis.text = "-2" 
       raceChr.text = "2" 

       // values reset 
       raceStr.text = "0" 
       raceCon.text = "0" 
       raceInt.text = "0" 

       // hides the singleStat text field 
       singleStat.isHidden = true 
      } 

      // Oread 
      else if raceViewer.text == races[9] 
      { 
       // values changed 
       raceStr.text = "2" 
       raceWis.text = "2" 
       raceChr.text = "-2" 

       // values reset 
       raceDex.text = "0" 
       raceCon.text = "0" 
       raceInt.text = "0" 

       // hides the singleStat text field 
       singleStat.isHidden = true 
      } 

      // Sylph 
      else if raceViewer.text == races[10] 
      { 
       // values changed 
       raceDex.text = "2" 
       raceCon.text = "-2" 
       raceInt.text = "2" 

       // values reset 
       raceStr.text = "0" 
       raceWis.text = "0" 
       raceChr.text = "0" 

       // hides the singleStat text field 
       singleStat.isHidden = true 
      } 

      // Tengu 
      else if raceViewer.text == races[11] 
      { 
       // values changed 
       raceStr.text = "-2" 
       raceDex.text = "2" 
       raceWis.text = "2" 

       // values reset 
       raceCon.text = "0" 
       raceInt.text = "0" 
       raceChr.text = "0" 

       // hides the singleStat text field 
       singleStat.isHidden = true 
      } 

      // Undine 
      else if raceViewer.text == races[12] 
      { 
       // values changed 
       raceStr.text = "-2" 
       raceDex.text = "2" 
       raceWis.text = "2" 

       // values reset 
       raceCon.text = "0" 
       raceInt.text = "0" 
       raceChr.text = "0" 

       // hides the singleStat text field 
       singleStat.isHidden = true 
      } 

      // Kitsune 
      else if raceViewer.text == races[13] 
      { 
       // values changed 
       raceStr.text = "-2" 
       raceDex.text = "2" 
       raceChr.text = "2" 

       // values reset 
       raceCon.text = "0" 
       raceInt.text = "0" 
       raceWis.text = "0" 

       // hides the singleStat text field 
       singleStat.isHidden = true 
      } 

      // Nagagi 
      else if raceViewer.text == races[14] 
      { 
       // values changed 
       raceStr.text = "2" 
       raceInt.text = "-2" 
       raceChr.text = "2" 

       // values reset 
       raceDex.text = "0" 
       raceCon.text = "0" 
       raceWis.text = "0" 

       // hides the singleStat text field 
       singleStat.isHidden = true 
      } 

      // Wayang 
      else if raceViewer.text == races[15] 
      { 
       // values changed 
       raceDex.text = "2" 
       raceInt.text = "2" 
       raceWis.text = "-2" 

       // values reset 
       raceStr.text = "0" 
       raceCon.text = "0" 
       raceChr.text = "0" 

       // hides the singleStat text field 
       singleStat.isHidden = true 
      } 
     } 
    } 
} 

Answer 1

Ich habe Ihren Code getestet, und für sich genommen ist es in Ordnung.

Wenn Sie jedoch zwei Dateien erstellen, die beide den ViewController-Klassennamen verwenden, erhalten Sie die Fehlermeldung, die Sie angeben.

In iOS, Sie sind nicht zu schaffen, zwei oder mehr Objekte mit dem gleichen Namen erlaubt (Klassen, Strukturen und Aufzählungen) Kollisionen Namensgebung zu vermeiden.

Bitte benennen Sie die Klasse, in der das Problem auftritt, um und prüfen Sie, ob das Problem behoben wurde.