ios - 使用 NSUserDefaults 保存高分

Question

我正在尝试使用 NSUserDefaults 快速加载我保存的高分但是它只是在加载，我已经浏览了尽可能多的教程但是这让我抓耳挠腮，因为我的 Highscore 不想加载。谁能找出原因？

以下所有代码都在 GameScene.Swift

override func didMoveToView(view: SKView) {

    highScoreLabelNode.fontName = "Helvetica-Bold"
    highScoreLabelNode.position = CGPoint(x: self.frame.size.width / 2.6, y: self.frame.size.height / 1.3 )
    highScoreLabelNode.fontSize = 20
    highScoreLabelNode.alpha = 0.2
    highScoreLabelNode.zPosition = -30
    highScoreLabelNode.text = "Highscore \(score)"

    var highScoreDefault = NSUserDefaults.standardUserDefaults()
        if (highScoreDefault.valueForKey("HighScore") != nil){
    highScore = highScoreDefault.valueForKey("Highscore") as! NSInteger!
    highScoreLabelNode.text = NSString(format: "Highscore : %i", highScore) as String
     }
        self.addChild(highScoreLabelNode)

}

override func update(currentTime: CFTimeInterval) {

    if (score > highScore) {
        highScore = score
        highScoreLabelNode.text = NSString(format: "Highscore : %i", highScore) as String

        var highscoreDefault = NSUserDefaults.standardUserDefaults()
        highscoreDefault.setValue(highScore, forKey: "Highscore")
        highscoreDefault.synchronize()
    }
}

Answer 1

在您提供的代码中，您在更新时设置了“Highscore”，但试图获取“HighScore”的值(注意大写 S)

这一行:

if (highScoreDefault.valueForKey("HighScore") != nil){

将其更改为:

if (highScoreDefault.valueForKey("Highscore") != nil){