How to unzip, edit and zip an android apk

Question

I have an android apk and I deleted my source code and dont have the project again, I want to change the version code of the old apk. my question is how do I unzip and repac

Answer 1

To give a complete answer for unpacking, editing and packing on Mac:

Unpacking / Unzipping

As Liu Tao stated, the easiest way to unpack a *.apk file on mac is to use the following command:

unzip xxx.apk -d xxx

This is because an *.apk file is nothing else than a zip file. Again, as Liu Tao stated, this can be found out with the file command.

file xxx.apk

Which will show an output that looks something like this:

xxx.apk: Zip archive data, at least v2.0 to extract

Editing

I think this is self-explanatory. Go into the folder to which you exported the *.apk contents and edit them as you would usually do.

Packing / Zipping

On Mac, this is also quite straight-forward. You can use the zip command to pack all the files back into an *.apk file.

zip -r xxx.apk xxx/