How to browse files in tree order to pick up the audio files available on sdcard and mobile memory in Android?

I need to browse a开发者_运维百科 file tree in order to pick up the audio files. How can i achieve this?

Check out the FileManager code from Open Intents:

http://code.google.com/p/openintents/source/browse/#svn%2Ftrunk%2Ffilemanager

That will do exactly what you want.