如何从Storyboard创建的UIButtons中随机定位？[swift Xcode]

Question

我通过情节提要创建了12个UIButton，在我的程序中，这些按钮代表卡片，我希望随机改变按钮的位置以洗牌。请帮我一个忙，给出实现该想法的方法或想法。

my buttons problem

导入UIKit

ViewController类：UIViewController {

lazy var game = Concentration(numberOfPairsOfCards: numberOfPairOfCards) //引入model Concentration
var numberOfPairOfCards : Int {
    return (cardButtons.count + 1) / 2  //read only computed properties可以省略get{}
}
var flipCount = 0 {
    didSet {
        flipsCountLabel.text = "Flips: \(flipCount)"
    }

}
@IBOutlet var cardButtons: [UIButton]!



@IBOutlet weak var flipsCountLabel: UILabel!

@IBAction func touchCard(_ sender: UIButton) {
    flipCount += 1

    if let cardNumber = cardButtons.index(of: sender) {
         game.chooseCard(at: cardNumber)
        updateViewFromModel()

    } else {
        print("somthing wrong")
    }


}

我已经完成了工作。

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
    var buttons = [UIButton]()
    for index in cardButtons.indices {
        buttons.append(cardButtons[index])
    }

    for index in cardButtons.indices {
        cardButtons[index] = buttons.remove(at: buttons.count.arc4random)
    }

}

Answer 1

您可以将按钮添加到数组中，将数组随机排列，然后遍历数组并放置按钮。更好的解决方案是创建一个UICollectionView。