xcode - 使用按钮时图像不显示

Question

当我点击运行应用程序时，当我点击指定按钮时应用程序不会放置图像。 (我对 Swift 和 Xcode 比较陌生，所以请耐心等待)

我将移除 UIImageViews 并改用按钮。如果我需要更多帮助，我会通知您。谢谢。

class ViewController: UIViewController {

@IBOutlet var TicTacImg1: UIImageView!
@IBOutlet var TicTacImg2: UIImageView!
@IBOutlet var TicTacImg3: UIImageView!
@IBOutlet var TicTacImg4: UIImageView!
@IBOutlet var TicTacImg5: UIImageView!
@IBOutlet var TicTacImg6: UIImageView!
@IBOutlet var TicTacImg7: UIImageView!
@IBOutlet var TicTacImg8: UIImageView!
@IBOutlet var TicTacImg9: UIImageView!

@IBOutlet var TicTacButton1: UIButton!
@IBOutlet var TicTacButton2: UIButton!
@IBOutlet var TicTacButton3: UIButton!
@IBOutlet var TicTacButton4: UIButton!
@IBOutlet var TicTacButton5: UIButton!
@IBOutlet var TicTacButton6: UIButton!
@IBOutlet var TicTacButton7: UIButton!
@IBOutlet var TicTacButton8: UIButton!
@IBOutlet var TicTacButton9: UIButton!

@IBOutlet var ResetButton: UIButton!

@IBOutlet var UserMessage: UILabel!

var plays = Dictionary <Int, Int> ()

@IBAction func UIButtonClicked(sender:UIButton) {
    UserMessage.hidden = true
    if plays[sender.tag] == nil && !aiDeciding && !done {
        setImageForSpot(sender.tag, player:1)
    }
}

func setImageForSpot (spot:Int, player:Int) {
    var playerMark = player == 1 ? "x" : "o"
    plays[spot] = player
    switch spot {
    case 1:
        TicTacImg1.image = UIImage(named: playerMark)
    case 2:
        TicTacImg2.image = UIImage(named: playerMark)
    case 3:
        TicTacImg3.image = UIImage(named: playerMark)
    case 4:
        TicTacImg4.image = UIImage(named: playerMark)
    case 5:
        TicTacImg5.image = UIImage(named: playerMark)
    case 6:
        TicTacImg6.image = UIImage(named: playerMark)
    case 7:
        TicTacImg7.image = UIImage(named: playerMark)
    case 8:
        TicTacImg8.image = UIImage(named: playerMark)
    case 9:
        TicTacImg9.image = UIImage(named: playerMark)
    default:
        TicTacImg5.image = UIImage(named: playerMark)
    }
}

Answer 1

您的 UIButtonClicked 函数需要如下所示...

    @IBAction func UIButtonClicked(sender:UIButton) {
            ticTacLabel.hidden = true
            if plays[sender.tag] == nil && !aiDeciding && !done {
                setImageForSpot(sender.tag, player:1)
    }

希望这对您有所帮助!