Question

我正在尝试仅在gameOverViewController上加载并保存我的高分。我已成功将得分从secondViewController转移到gameOverViewController。 gameOverViewController就像一个普通的屏幕游戏，显示你的分数，高分并重试和主菜单按钮。我试图将highScoreLabel设置为scoreGameOverLabel，它运行，但highScore int保持为0并且不等于gameOverScore。我想：

如果得分＆gt;高分，高分=得分

如果得分＆lt;高分，高分仍然相同

var addOne = 0
class SecondViewController: UIViewController
{

@IBOutlet weak var score: UITextField!

score.text = "\(addOne)"

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {

let gameOver = segue.destination as! GameOverViewController

gameOver.gameOverText = score.text!
gameOver.lastScore = addOne
}

gameOverViewController

class GameOverViewController: UIViewController {


@IBAction func retryButton(_ sender: Any) {   
addOne = 0
  highScoreLabel.text = NSString(format: "%i", highScore) as String
} 

@IBAction func mainMenuButton(_ sender: Any) { 
addOne = 0
  highScoreLabel.text = NSString(format: "%i", highScore) as String
}        

var lastScore = 0
var highScore = UserDefaults.standard.integer(forKey: "high_score")  

@IBOutlet weak var highScoreLabel: UILabel!

@IBOutlet weak var scoreGameOverLabel: UILabel!

var gameOver = ""

override func viewDidLoad() {
    super.viewDidLoad()

    if lastScore > highScore {
        highScore = lastScore
       highScoreLabel.text = NSString(format: "%i", highScore) as String
        UserDefaults.standard.set(highScore, forKey: "high_score")
    }                 
    scoreGameOverLabel.text = gameOver       
}

Answer 1

<强>首先，

highScoreLabel = scoreGameOverLabel

应该是

 highScoreLabel.text = scoreGameOverLabel.text

其次，根据您的代码段，在GameOverViewController中没有addOne，您如何设置它并在If条件下使用它进行比较？

Answer 2

在SecondViewController中，尝试设置您的最后得分。

gameOver.lastScore = addOne

在GameOverViewController中添加lastScore变量并跟踪您的高分。

var lastScore = 0
var highScore = UserDefaults.standard.integer(forKey: "high_score")

if lastScore > highScore {
    highScore = lastScore
    UserDefaults.standard.set(highScore, forKey: "high_score")
}

加载，在第二个视图控制器上保存高分

2 个答案: