如何在背景iOS Swift中播放直播中的音频

Question

Hai我正在使用MPMoviePlayerController通过直播播放mp3，但当应用在后台运行时，它不会播放。当手机锁定时它会停止播放。请告诉我如何在后台播放实时流媒体音频和手机锁定。请尽快建议我。

我使用MPMoviePlayerController代替AvAudioPlayer。因为AvAudioPlayer不支持网络流reference.

注意：

语言 - Swift 2.0

更新1

最后用AVPlayer编码。但它没有从网址This mp3 need to play in my app.播放我的音频我的代码是

override func viewDidLoad() {
    audioUrl = NSURL(string: "http://www.raagam.co/4256s5f46ht4he4r6/2016/Achcham%20Enbathu%20Madamaiyada/Thalli%20Pogathey.mp3")!
    let avAsset = AVURLAsset(URL: audioUrl)
    let avPlayerItem = AVPlayerItem(asset: avAsset)

    avPlayer = AVPlayer(playerItem: avPlayerItem)
    NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(ViewController.playerItemDidReachEnd), name: AVPlayerItemDidPlayToEndTimeNotification, object: avPlayer.currentItem)
    avPlayer.addObserver(self, forKeyPath: "status", options: NSKeyValueObservingOptions.New, context: nil)
    super.viewDidLoad()
}

override func observeValueForKeyPath(keyPath: String?, ofObject object: AnyObject?, change: [String : AnyObject]?, context: UnsafeMutablePointer<Void>) {

    if (object!.isEqual(avPlayer) && keyPath=="status"){
        print("Observer")
        if avPlayer.status == AVPlayerStatus.ReadyToPlay{
            print("ReadyToPlay")
            avPlayer.play();
        }else if avPlayer.status == AVPlayerStatus.Failed{
            print("Failed")
        }else if avPlayer.status == AVPlayerStatus.Unknown{
            print("Unknown")
        }
    }
}

func playerItemDidReachEnd(){
        print("Finished")
}

我使用here

中的代码

当我运行此代码时。它打印 ReadyToPlay 。但是mp3没有播放。

Answer 1

您可以通过在项目中启用背景音频来执行此操作＆gt;功能窗格：

然后打比赛。

但请使用MPMoviePlayerController。

，而不是AVAudioPlayer或AVPlayer