If you wanna hack some native application like Music.apk – it’s really simple.

  1. Download and make android platform under linux
  2. Copy app (like packages\apps\Music) and create android eclipse project from it
  3. Add “out\target\common\obj\JAVA_LIBRARIES\framework_intermediates\classes.jar” library to the java build path (on top of android library)
  4. Rename package (you cannot replace system app) or create platform image without modified application
  5. Compile .apk in eclipse and enjoy