windows phone background player share

I'm developing a windows phone app with a background player based on the windows phone 7.1 project template(so i have 2 projects). My question is how i dynamically set the list of tracks for the background player to play? I tried static fields but didn't work and my guess is that i have to define a resource in the app.xaml but how it is done exactly? I need to shar开发者_运维问答e a List and an integer.

Thanks for the help!

The audio agent won't be able to read any resources in the App object (app.xaml).

As far as I can see the only way to communicate between your app and the background audio is via the BackgroundAudioPlayer.Instance object, the AudioTrack (see especially the Tag property) and using files stored in Isolated Storage.

This is described on MSDN here.

Also check out the Background Audio player in the MSDN code samples.