Android :: How To Use Media Player In Library Class?

I have successfully implemented the Media Player for my apps, but when I tried to use some of the callback methods I ran into a problem.What I'm trying to do is use Media Player in a reusable (library) class.This MediaPlayer is created by passing the Activity Context to it's constructor.I then use getApplicationContext to avoid any potential memory leaks.This works well and I'm quite happy with it.My problem is trying to use callbacks.When I implement MediaPlayer.OnPreparedListener in my class.I believe this is due to the class itself not being an Activity.When I implemented the callbacks in a separate test project, the mp.prepare () works fine. I cannot use a passed context to my library class, as that would require the Activity to implement the listener and not my library class. How can I create a library class that creates/uses MediaPlayer and it's callbacks without making it extend Activity?Is this not possible?