Question

Is there a way to detect when a user pluggs or unpluggs the headphones on wp7?

The problem is that when a song is playing on a background AudioPlayerAgent and the user plugs on unplugs the phones, the protected override void OnUserAction method of the AudioPlayerAgent receives a pause UserAction and pauses the music.

I need to detect the plug/unplug on the UI thread so I can update the GUI to reflect a paused state.

Answer 1

You need to subscribe to the PlayStateChanged event of the BackgroundAudioPlayer within your page:

    public void MainPage()
    {
        InitializeComponent();
        BackgroundAudioPlayer.Instance.PlayStateChanged += InstanceOnPlayStateChanged;
    }

    private void InstanceOnPlayStateChanged(object sender, EventArgs eventArgs)
    {
        // Update UI
    }