Chirp.Radio.MainPage.PlayButton_Click_1 C# (CSharp) Метод

        private void PlayButton_Click_1(object sender, EventArgs e)
        {
            var playButton = ApplicationBar.Buttons[0] as ApplicationBarIconButton;

            if (BackgroundAudioPlayer.Instance.PlayerState == PlayState.Playing)
            {
                playButton.Text = "Play";
                playButton.IconUri = new Uri("/Images/play.png", UriKind.Relative);
                BackgroundAudioPlayer.Instance.Stop();

            }
            else
            {
                _viewModel.Busy = true;
                playButton.Text = "Stop";
                playButton.IconUri = new Uri("/Images/pause.png", UriKind.Relative);
                BackgroundAudioPlayer.Instance.Play();
            }
        }