播放与plist中项目关联的音频文件

Question

我的应用程序中有几个地方有音频，大部分都是直接的，可以很好地工作，比如

func ayuh() {
        do {
            audioPlayer =  try AVAudioPlayer(contentsOfURL: NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("ayuhSound2", ofType: "mp3")!))
            audioPlayer!.play()
        } catch {
            print("Error")
        }
    }

现在，我正在尝试将音频文件附加到我的plist播放中的特定问题中。我试过这个：

 func nextQuestion() {
    let currentQuestion = mcArray![questionIdx]
    answers = currentQuestion["Answers"] as! [String]
    correctAnswer = currentQuestion["CorrectAnswer"] as? String
    question = currentQuestion["Question"] as? String
    cardButton.enabled = false
    titlesForButtons()
    self.bonusCoin.hidden = true
    //this code above works to bring up the question and various answers
    audio = currentQuestion["Audio"] as? String
    do {
        mcaudioPlayer =  try AVAudioPlayer(contentsOfURL: NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource(audio, ofType: "mp3")!))
        mcaudioPlayer!.play()
    } catch {
        print("Error")
    }
            mcaudioPlayer!.play()
        } catch {
            print("Error")
        }

但这只是针对每个问题反复播放列表中的第一个音频文件。这是到目前为止的音频文件

当这个问题从我的琐事应用中的数组中出现时，我想播放before_leage.mp3

有什么线索可以让它播放plist中关联的音频文件吗？

Answer 1

我（在朋友的帮助下；）

func nextQuestion() {
        let currentQuestion = mcArray![questionIdx]
        answers = currentQuestion["Answers"] as! [String]
        correctAnswer = currentQuestion["CorrectAnswer"] as? String
        question = currentQuestion["Question"] as? String
        cardButton.enabled = false
        titlesForButtons()
        self.bonusCoin.hidden = true
        audio = currentQuestion["Audio"] as? String
        createPlayerItem(audio!, ofType: "mp3")
        queuePlayer.play()
        //queuePlayer.removeAllItems()
    }

    func createPlayerItem(item: String, ofType type: String) {
        let path = NSBundle.mainBundle().pathForResource(item, ofType: type)
        let url = NSURL.fileURLWithPath(path!)
        let item = AVPlayerItem(URL: url)
        queuePlayer.insertItem(item, afterItem: nil)   
    }