无法在iOS中获取声音文件

Question

@IBAction func cowButton(_ sender: UIButton) {
    let soundFileSeleced : String = soundArray[0]
    print(soundFileSeleced)
    playSound()
}
func playSound() {
    let soundURL = Bundle.main.url(forResource: "cowSound", withExtension: ".wav")

    do {
        audioPlayer = try AVAudioPlayer(contentsOf: soundURL!)
    }
    catch {
        print(error)
    }
    audioPlayer.play()
}

我无法发挥我的声音。我的代码出了什么问题？我收到了消息：

  

“主题1：致命错误：在解包可选值时意外发现nil”

Answer 1

检查let soundURL行的语法。非常确定withExtension不应该包含.。

试试这个？

let soundURL = Bundle.main.url(forResource: "cowSound", withExtension: "wav")