编程方式添加的UIButton不会消失切换场景

Question

我使用一个游戏程序模板斯威夫特3后，当我从我的转变从“开始”屏幕“开始”屏幕上我的“游戏”的场景，按钮不会消失。 我读过其他人的帖子，但没有任何帮助。我的按钮是一个编程添加的UIButton有uibezierpath圆角矩形按钮背后使它看起来不错。问题是，它（按钮，UIBezierpath）不会消失，当我改变场景 - 它在完全相同的斑点为“开始”屏幕。 我的按钮代码与UIBezierpath：

let playAgain = UIButton() 
     playAgain.frame = CGRect(x: 225, y: 247, width: 115, height: 36) 

     playAgain.backgroundColor = SKColor.lightGray 
     playAgain.setTitle("Play", for: .normal) 

    playAgain.setTitleColor(.black, for: .normal) 

     self.view?.addSubview(playAgain) 
     playAgain.addTarget(self, action: #selector(playAgainTapped(_:)), for: .touchUpInside) 
     //now for the bezierpath/ rounded rect 
     //let doYourPath = UIBezierPath(rect: CGRect(x: 20, y: 20, width: 100, height: 36)) 

     //this also works 
     let roundRect = UIBezierPath(roundedRect: CGRect(x: 218, y: 240, width: 130, height: 50), cornerRadius: 18) 
     let layer = CAShapeLayer() 
     layer.path = roundRect.cgPath 
     layer.strokeColor = UIColor.black.cgColor 
     layer.fillColor = UIColor.lightGray.cgColor 
     self.view?.layer.addSublayer(layer) 

func playAgainTapped(_ sender: Any?) -> Void { 
     print("***********") 

     backToGame() 
    } 

切换场景代码：

func backToGame(){ 
     removeAllChildren() 

     run(SKAction.sequence([ 
      SKAction.wait(forDuration: 3.0), 
      SKAction.run() { 
       // 5 
       let reveal = SKTransition.flipHorizontal(withDuration: 0.5) 
       let scene = GameScene(size: self.size) 
       self.view?.presentScene(scene, transition:reveal) 
      } 
      ])) 
    } 

任何想法？

Answer 1

您在同一视图按钮的上海华展示现场。

由于现场是独立于那些在现场的意见，你的按钮将保持不变，所以如果你想将它移走你应该明确地删除的按钮。

声明按钮和圆角矩形全局和从其上海华/ superlayer删除它们在backToGame。

let playAgain = UIButton() 
let layer = CAShapeLayer() 

func backToGame(){ 
    removeAllChildren() 

    playAgain.removeFromSuperview() 
    layer.removeFromSuperlayer() 

    run(SKAction.sequence([ 
     SKAction.wait(forDuration: 3.0), 
     SKAction.run() { 
      // 5 
      let reveal = SKTransition.flipHorizontal(withDuration: 0.5) 
      let scene = GameScene(size: self.size) 
      self.view?.presentScene(scene, transition:reveal) 
     } 
     ])) 
}