private void PlayVoice(string voiceFileURL)
        {

            try
            {
                mediaPlayer = new MediaPlayer();

                mediaPlayer.MediaEnded += mediaPlayer_MediaEnded;

                mediaPlayer.Open(new Uri(voiceFileURL.Replace("https://","http://")));


                for (int i = 0; i < 3; i++)
                {
                    try
                    {
                        mediaPlayer.Play();
                        break;
                    }
                    catch (Exception)
                    {
                        System.Threading.Thread.Sleep(1000);
                    }
                }


            }

            catch (Exception Ex)
            {

            }
            finally
            {

            }
        }

void mediaPlayer_MediaEnded(object sender, EventArgs e)
        {
            mediaPlayer.Stop();
        }