由于运行应用程序时未捕获的异常而终止应用程序

Posted 2023-03-16

【中文标题】由于运行应用程序时未捕获的异常而终止应用程序

【英文标题】：Terminating app due to uncaught exception while running app

【发布时间】：2016-06-24 16:57:43

【问题描述】：

我正在制作一个游戏，如果我按下按钮，玩家 (circuloPrincipal) 会将颜色更改为按钮确定的颜色。 当我运行我的游戏时，有时会因以下错误而崩溃。我没有找到错误，因为我不知道如何解释

由于未捕获的异常“NSInvalidArgumentException”而终止应用程序，原因：“尝试添加已具有父级的 SKNode：名称：'button4' 纹理：['circuloBoton' (100 x 100)] 位置：407, 39 比例：1.00, 1.00 大小：60, 60 锚点：0.5, 0.5 旋转：0.00'

    circuloPrincipal.size = CGSize(width: 225, height: 225)
    circuloPrincipal.position = CGPoint(x: frame.width / 2, y: frame.height / 2)
    circuloPrincipal.color = colorAzul
    circuloPrincipal.colorBlendFactor = 1.0
    circuloPrincipal.physicsBody = SKPhysicsBody(circleOfRadius: circuloPrincipal.size.height / 2)
    circuloPrincipal.physicsBody?.contactTestBitMask = physicsCategory.circuloPrincipal
    circuloPrincipal.physicsBody?.collisionBitMask = physicsCategory.enemigo
    circuloPrincipal.physicsBody?.contactTestBitMask = physicsCategory.enemigo
    circuloPrincipal.physicsBody?.affectedByGravity = false
    circuloPrincipal.physicsBody?.dynamic = false
    circuloPrincipal.name = "circuloPrincipal"
    circuloPrincipal.zPosition = 5.0
    circuloBlanco.size = CGSize(width: 60, height: 60)
    circuloBlanco.position = CGPoint(x: frame.width / 2 - 105 ,  y: frame.height / 2 - 345)
    circuloBlanco.color = colorBlanco
    circuloBlanco.colorBlendFactor = 1.0
    circuloBlanco.zPosition = 4.0

override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) 

    /* Called when a touch begins */

    if gameStarted == false 

        circuloVerde.removeFromParent()
        circuloMorado.removeFromParent()
        circuloRojo.removeFromParent()
        circuloBlanco.removeFromParent()


        circuloPrincipal.color = colorAzul

        enemigoTimer = NSTimer.scheduledTimerWithTimeInterval(0.7, target: self, selector: Selector("enemigos"), userInfo: nil, repeats: true)

        gameStarted = true
        circuloPrincipal.runAction(SKAction.scaleTo(0.44, duration: 0.4))
        score = 0
        scoreLabel.text = "\(score)"
        hits = 0
        highscoreLabel.runAction(SKAction.fadeOutWithDuration(0.5))    
    

    circuloVerde.name = "button"

    let touch = touches.first
    let positionInScene = touch!.locationInNode(self)
    let touchedNode = self.nodeAtPoint(positionInScene)

    if let name = touchedNode.name 
        if name == "button"      
            circuloPrincipal.color = colorVerde
          
    

    circuloAmarillo.name = "button2"

    let touch2 = touches.first
    let positionInScene2 = touch2!.locationInNode(self)
    let touchedNode2 = self.nodeAtPoint(positionInScene2)

    if let name = touchedNode2.name 
        if name == "button2"  
            circuloPrincipal.color = colorAmarillo    
        
    

    circuloAzul.name = "button3"

    let touch3 = touches.first
    let positionInScene3 = touch3!.locationInNode(self)
    let touchedNode3 = self.nodeAtPoint(positionInScene3)

    if let name = touchedNode3.name 
        if name == "button3" 
            //do my stuff
            circuloPrincipal.color = colorAzul  
        
    

    circuloBlanco.name = "button4"

    let touch4 = touches.first
    let positionInScene4 = touch4!.locationInNode(self)
    let touchedNode4 = self.nodeAtPoint(positionInScene4)

    if let name = touchedNode4.name 
        if name == "button4" 
            circuloPrincipal.color = colorBlanco
        
    

    circuloRojo.name = "button5"

    let touch5 = touches.first
    let positionInScene5 = touch5!.locationInNode(self)
    let touchedNode5 = self.nodeAtPoint(positionInScene5)

    if let name = touchedNode5.name    
        if name == "button5" 
            circuloPrincipal.color = colorRojo  
        
    

    circuloMorado.name = "button6"

    let touch6 = touches.first
    let positionInScene6 = touch6!.locationInNode(self)

    let touchedNode6 = self.nodeAtPoint(positionInScene6)

    if let name = touchedNode6.name 
        if name == "button6" 
            circuloPrincipal.color = colorMorado 
        
    

【问题讨论】：

没有冒犯，但你的代码是一团糟。在要求人们阅读之前，您应该考虑清理所有额外的空白并对其进行格式化。

我正在尽我所能运行您的代码，并且运行良好。但是缺少大量代码（我只是注释掉了受影响的行）。你能把 enemigos 函数贴出来，让我看看里面发生了什么吗？

当然，罗恩有时会发生这种情况

这就是为什么我认为问题出在 enemigos 函数上，因为通过注释掉该调用，我可以敲击按钮并永远更改颜色而不会出错

我添加到我的问题罗恩

【参考方案1】：

您正在尝试添加一个节点，但它已经有一个父节点。它就在错误消息中。

你可以检查它是否已经有这样的父母

let childNode = SKNode()
let parentNode = SKNode()

if childNode.parent == nil 
    parentNode.addChild(childNode)

【讨论】：

这是一个很好的故障保险，但它并没有解决他为什么要尝试添加对象两次的问题。

是的，他不需要这样做，但如果他不想解决这个问题，他可以使用秋季保险箱

非常感谢罗恩的宝贵时间