PickerVIew.selectRow ne fonctionne pas

Question

J'écris une application iOS avec swift 3 et Xcode 8.3.3. Mon application est une machine à sous. Dans ma fonction autoWinBtn, quand je veux sélectionner une ligne spécifique (avec selectRow (_ ligne: Int, composant inComponent: Int, animé: Bool)) il ne fonctionne pas ...

Voici le résultat de «print»

component1 : [0, 3, 5, 0, 7, 3, 8, 8, 6, 5, 2] 
component2 : [6, 3, 1, 8, 5, 7, 3, 1, 7, 7, 0] 
component3 : [6, 5, 6, 2, 5, 7, 0, 5, 7, 7, 8] 
i : 0 -- 3/10/6 // there are 0 in position 3 for component1 
        //       10 for component2 
        //      6 for component3 
pos pickerView 1 : 3 
pos pickerView 2 : 1 
pos pickerView 3 : 6 

le pickerView 2 doit être en position 10

est ici tout mon code:

import UIKit 

class ViewController: UIViewController, UIPickerViewDataSource, UIPickerViewDelegate { 

@IBOutlet weak var lasVegasCasinoLabel: UILabel! 
@IBOutlet weak var casinoRouletttePickerView: UIPickerView! 

@IBOutlet weak var winLoseLabel: UILabel! 

@IBOutlet weak var moneyLabel: UILabel! 

var collectionFruit: [String] = [String]() 
var collectionMoney: [Int] = [Int]() 
var component1: [Int] = [Int]() 
var component2: [Int] = [Int]() 
var component3: [Int] = [Int]() 

var money: Int = 0 


@IBAction func autoWinBtn(_ sender: UIButton) { 
    var estAutoWin: Bool = false 
    print("component1 : \(component1)") 
    print("component2 : \(component2)") 
    print("component3 : \(component3)") 

    for i in 0...collectionFruit.count-1 { 
     let fruit1 = isPresent(component: component1, number: i) 
     let fruit2 = isPresent(component: component2, number: i) 
     let fruit3 = isPresent(component: component3, number: i) 

     if (fruit1 != -1 && fruit2 != -1 && fruit3 != -1 && estAutoWin == false){ 

      print("i : \(i) -- \(fruit1)/\(fruit2)/\(fruit3)") 

      casinoRouletttePickerView.selectRow(fruit1, inComponent: 0, animated: true) 
      casinoRouletttePickerView.selectRow(fruit2, inComponent: 1, animated: true) 
      casinoRouletttePickerView.selectRow(fruit3, inComponent: 2, animated: true) 

      print("pos pickerView 1 : \(casinoRouletttePickerView.selectedRow(inComponent: 0))") 
      print("pos pickerView 2 : \(casinoRouletttePickerView.selectedRow(inComponent: 1))") 
      print("pos pickerView 3 : \(casinoRouletttePickerView.selectedRow(inComponent: 2))") 

      estAutoWin = true 
     } 
    } 
    winLose() 

} 

func isPresent(component: [Int], number: Int) -> Int { 
    var present: Int = -1 
    for i in 0...component.count-1 { 
     if component[i] == number { 
      present = i 
     } 
    } 
    return present 
} 

@IBAction func playButtonAction(_ sender: UIButton) { 
    money -= 10 
    casinoRouletttePickerView.selectRow(randomNumber(num: collectionFruit.count-1), inComponent: 0, animated: true) 
    casinoRouletttePickerView.selectRow(randomNumber(num: collectionFruit.count-1), inComponent: 1, animated: true) 
    casinoRouletttePickerView.selectRow(randomNumber(num: collectionFruit.count-1), inComponent: 2, animated: true) 

    winLose() 
} 

func winLose(){ 
    if (component1[casinoRouletttePickerView.selectedRow(inComponent: 0)] == 
     component2[casinoRouletttePickerView.selectedRow(inComponent: 1)] && 
     component1[casinoRouletttePickerView.selectedRow(inComponent: 0)] == 
     component3[casinoRouletttePickerView.selectedRow(inComponent: 2)]){ 

     winLoseLabel.text = "Gagner" 
     winLoseLabel.textColor = UIColor.green 

     money += 20 
     moneyLabel.text = "\(money)" 
    } else { 
     winLoseLabel.text = "Perdu" 
     winLoseLabel.textColor = UIColor.red 
     moneyLabel.text = "\(money)" 
    } 
} 
func randomNumber(num: Int) -> Int{ 
     return Int(arc4random_uniform(UInt32(num))) 
} 
override func viewDidLoad() { 
    super.viewDidLoad() 
    // Do any additional setup after loading the view, typically from a nib. 

    money = 100 
    collectionFruit = ["", "", "", "", "", "", "", "", ""] 
    collectionMoney = [1, 3, 5, 10, 20, 50, 100, 200, 500] 

    for _ in 0...10 { 
     component1.append(randomNumber(num: collectionFruit.count)) 
     component2.append(randomNumber(num: collectionFruit.count)) 
     component3.append(randomNumber(num: collectionFruit.count)) 
    } 

    lasVegasCasinoLabel.text = "Las Vegas \n Casino" 

    casinoRouletttePickerView.delegate = self 
    casinoRouletttePickerView.dataSource = self 
} 


// returns the number of 'columns' to display. 
@available(iOS 2.0, *) 
public func numberOfComponents(in pickerView: UIPickerView) -> Int{ 
    return 3 
} 


// returns the # of rows in each component.. 
@available(iOS 2.0, *) 
public func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int{ 
    return collectionFruit.count 
} 

func pickerView(_ pickerView: UIPickerView, rowHeightForComponent component: Int) -> CGFloat { 
    return 100 
} 

func pickerView(_ pickerView: UIPickerView, widthForComponent component: Int) -> CGFloat { 
    return 100 
} 
@available(iOS 2.0, *) 
public func pickerView(_ pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusing view: UIView?) -> UIView { 

    let pickerLabel: UILabel = UILabel() 
    switch component { 
    case 0: 
     pickerLabel.text = collectionFruit[component1[row]] 

    case 1: 
     pickerLabel.text = collectionFruit[component2[row]] 

    case 2: 
     pickerLabel.text = collectionFruit[component3[row]] 

    default: 
     print("Erreur de component") 
    } 

    pickerLabel.font = UIFont(name: "Apple Color emoji", size: 100) 
    pickerLabel.textAlignment = NSTextAlignment.center 
    return pickerLabel 
} 


} 

Je l'ai fait beaucoup de recherches, mais aucun des résultats ont travaillé avec moi

Answer 1

Changez votre numberOfRowsInComponent méthode DataSource à ce qui suit:

// returns the # of rows in each component.. 
@available(iOS 2.0, *) 
public func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int{ 
    switch component { 
    case 0: return component1.count 
    case 1: return component2.count 
    case 2: return component3.count 
    default: return 0 
    } 
} 

Vous devez également ajouter une déclaration break après votre ligne estAutoWin = true puisque vous ne pas avoir à continuer à boucler lorsque vous avez trouvé un fruit correspondant.

estAutoWin = true 
break