public void PlayAudioFile(string fileName)
{
var player = new MediaPlayer();
var fd = global::Android.App.Application.Context.Assets.OpenFd(fileName);
player.Prepared += (s, e) =>
{
player.Start();
};
player.Completion += (s, e) =>
{
};
player.SetDataSource(fd.FileDescriptor, fd.StartOffset, fd.Length);
player.Prepare();
}
}