onPause difference between screen lock and incoming call

I'm developing an audio application. It plays sounds in the background and I want it to turn off when an incoming call happens but not when the screen locks. My first chance was to call player.stop() on onPause as I thought it will do the trick 开发者_运维百科when incoming or other applications will run on top. But I found that screen lock calls also this onPause event.

Is there any chance to get the cause of that calling?

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I believe this article has what you are looking for: http://thinkandroid.wordpress.com/2010/01/24/handling-screen-off-and-screen-on-intents/

Has some snippets of code explaining how to handle if the screen turns off etc.

Hope that helps some!