How to make libs editable? Possible? (coding amateur)

Question

I use the achartengine libs and downloaded the achartengine-1.0.0.jar from google. I imported the library into my code and recognized that I can ONLY read it but I'd like to apply some patches. How can I make a library editable?

I use Android Studio.

Answer 1

In the jar-File are only the compiled .class-Files, no .java-Files.

If you want to edit or patch, you need the src-.java-Files. Here you can check out the SVN-Project:

https://code.google.com/p/achartengine/source/checkout

Here you can see the files, which you would need, if you want to edit the library:

https://code.google.com/p/achartengine/source/browse/#svn%2Ftrunk%2Fachartengine%2Fsrc%2Forg%2Fachartengine%253Fstate%253Dclosed