AVAudioPlayer。initWithData引发异常

直接从URL播放音频即可

do
{
  try Manager.player = AVAudioPlayer.init(contentsOf: returnPathAtSelectedIndex(fileName: fileName))
  //Set required delegates and Values

  Manager.player?.delegate = self
  Manager.player?.volume = 1.0
  Manager.player?.prepareToPlay()
  Manager.player?.play()
}
catch
{
  print("Error while playing music: \(error.localizedDescription)")
}

我的播放器

struct Manager 
{
   ///AVAudio Player
    static var player: AVAudioPlayer?
}

我的函数func returnPathAtSelectedIndex(fileName:String) -> URL 返回a URL 。

编辑

当AVAudioPlayer播放保存到本地的文件时。您需要将文件保存到本地,然后

AVAudioPlayer。init(内容:localFileUrl)

将有助于播放文件,不会产生崩溃。

我按下面的代码进行了尝试,效果很好

  let audioData = try! Data.init(contentsOf: url)
    do
    {
        let audioPlayer = try AVAudioPlayer.init(data: audioData) //Throwing error sometimes
        audioPlayer.delegate = self as? AVAudioPlayerDelegate
        audioPlayer.prepareToPlay()
        audioPlayer.play()

    } catch {
        print("An error occurred while trying to extract audio file")
    }

请将您的代码更改为此,以便您可以了解发生的错误类型:

let audioData = try! Data.init(contentsOf: URL)
do {
   self.audioPlayer = try AVAudioPlayer.init(data: data) //Throwing error sometimes
   self.audioPlayer?.delegate = self
   self.audioPlayer?.prepareToPlay()     
   self.audioPlayer?.play()

}
catch let error {
   print(error.localizedDescription)
   showErrorMessage(error.localizedDescription)

}

调试本地化描述后,我发现了错误

The operation couldn’t be completed. (OSStatus error 1954115647.)

下面的链接帮助我解决了我的问题。

https://stackoverflow.com/a/5252724/5227570

而不是使用NSData对象初始化音频播放器, 将文件保存到Documents文件夹,然后初始化 具有文件URL的播放器