Android Question reverse engineer .apk?

[nypaulie]

Several years back I developed an ebook collection program. I still have the .apk but seem to have "lost" the rest of the files. Is it possible to reverse engineer it to reproduce the .b4a file to work on it again?
[Added Later] - I did some prowling and found the answer. It's NO so I am closing this thread.

 

[rboeck]

An easy step to get your graphics files etc. is: copy your apk - rename it from .apk to .zip and you can now open this zip file. With several decompiler you can get an java file - but this is not your b4a source...