Answers

• Yelinzh Member, Xamarin Team Xamurai

  December 2019

  If you want to play continue playing media, start a Service and control the MediaPlayer instance from there. You need to embed the MediaPlayer in a MediaBrowserServiceCompat service and have it interact with a MediaBrowserCompat in another activity.

  MediaPlayer player = new MediaPlayer();
  player.SetAudioStreamType(Stream.Music);
  
  player.Prepared += (sender, args) => player.Start();
  await player.SetDataSourceAsync(ApplicationContext, Android.Net.Uri.Parse(Mp3));
  player.PrepareAsync();
  

  Tutorials:
  https://developer.android.com/guide/topics/media/mediaplayer#mpandservices
  https://devblogs.microsoft.com/xamarin/background-audio-streaming-with-xamarin-android/

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• mtsABC Member ✭✭

  December 2019

  But this is to play music in background, I get a System.IO.Stream from another device and would like to play it directly into the setDataSource. Something like this

  System.IO.Stream mmInStream;
  player.SetDataSource(mmInStream);
  

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• mtsABC Member ✭✭

  December 2019

  I tried reading with MediaDataSource class like this

  byte[] myReadBuffer = new byte[10000];
  player.Prepared += (sender, e) =>
  {
      player.Start();
  };
  player.SetDataSource(new StreamMediaDataSource(new System.IO.MemoryStream(mmInStream.Read(myReadBuffer, 0, myReadBuffer.Length))));
  player.Prepare();
  

  But this returns the

  12-20 15:55:51.429 W/dalvikvm(32750): Unable to resolve superclass of Lmd5c539bdc79f76d0c80e6cd44011eba829/StreamMediaDataSource; (388)
  12-20 15:55:51.429 W/dalvikvm(32750): Link of class 'Lmd5c539bdc79f76d0c80e6cd44011eba829/StreamMediaDataSource;' failed
  

  0