Swift聲音效果//爲什麼我的代碼不工作？

Question

我一直在試圖做一個遊戲來教自己很快，並且似乎無法讓這段代碼工作。我對此非常陌生，似乎無法找出爲什麼它不起作用...... XCode不會標記任何問題，構建sucseed和調試器甚至打印「第1階段&第2階段」。 ..什麼幫助？

我進口AVFoundation ..

class GAME { 

    class func SuperStartGame(playerwhowon1: SKSpriteNode) { 

      var player = AVAudioPlayer() 

     func PlaySound() { 
      guard let URL = Bundle.main.url(forResource: "PowerUp", withExtension: "mp3") 
       else { 
        print("Didn't Find URL") 
        return 
      } 

      do { 
       print("Got to Stage 1") 

       try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback) 
       try AVAudioSession.sharedInstance().setActive(true) 

       player = try AVAudioPlayer(contentsOf: URL, fileTypeHint: "mp3") 
       player.prepareToPlay() 
       player.play() 

       print("Got to Stage 2") 
      } catch let error as NSError { 
       print("error: \(error.localizedDescription)") 
      } 

     RoundNumber += 1 
     Round.text = "Round \(RoundNumber)" 

     if playerwhowon1 == Mine { 
      MyScore.run(addscoreM) { 
       PlaySound() 
        Round.run(NewRoundForRound) { 

... 

代碼不斷去..那是相關的聲音的唯一部分。我加入了聲音文件的Xcode，並確保它是添加到他的項目目標...它在我的主要捆綁

Answer 1

1. 請確保您的設備沒有靜音

2. MP3文件複製到捆綁

3. 例VC播放聲音：

   class ViewController: UIViewController { 
       var game = Game() 
   
       @IBAction func playAction(_ sender: UIButton) { 
        game.playSound() 
       } 
   
   } 
   
   class Game { 
   
       var player: AVAudioPlayer? 
   
       func playSound() { 
        guard let URL = Bundle.main.url(forResource: "SampleAudio", withExtension: "mp3") else { 
         print("Didn't Find URL") 
         return 
        } 
   
        do { 
         try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback) 
         try AVAudioSession.sharedInstance().setActive(true) 
   
         player = try AVAudioPlayer(contentsOf: URL, fileTypeHint: "mp3") 
         player?.prepareToPlay() 
         player?.play() 
   
        } catch let error as NSError { 
         print("\(error.localizedDescription)") 
        } 
   
       } 
   
   }