Question

这是我的代码示例...对于少数音频文件（mp4扩展名），它失败，异常“操作无法完成。（OSStatus error 2003334207.）” 我从iPhone下载了容器并确认文件存在于路径

do {  

    audioPlayer = try AVAudioPlayer(contentsOf: url)

     //guard let player = player else { return }
     audioPlayer.delegate = self
     audioPlayer.prepareToPlay()
     audioPlayer.play()
     audioPlayer.volume = 1.0

     if timer != nil && timer.isValid {
         timer.invalidate()
         timer = nil
     }

     timer = Timer.scheduledTimer(timeInterval: 1, target: self, selector: #selector(LynkAudioPlayer.checkPlayTime), userInfo: nil, repeats: true)

} catch let error as NSError {
     print(error.description)
}

Answer 1

您的代码看起来很好。发生此错误的原因是您要么访问不在指定url的文件，要么在返回后返回值nil。确保您使用AVAudioPlayer(contentsOf: url)访问的资源具有正确形成的URL。音频数据也必须采用Core Audio支持的格式。设置后，您可能需要检查audioPlayer是否为nil：

audioPlayer = try AVAudioPlayer(contentsOf: url)

if audioPlayer != nil { 
    audioPlayer.delegate = self
    audioPlayer.prepareToPlay()
    audioPlayer.play()
    audioPlayer.volume = 1.0
} else {
    //try to load a different resource?
}

AVAudioPlayer失败并显示错误“操作无法完成。（OSStatus错误2003334207.）”

1 个答案: