I have some custom binaries that I would like to include in a custom build of android and I was trying to figure out where I need to place it and what make file I should edit so that when I build it, the binaries will automatically be placed in the bin folder.
You should watch this video (the first and the second part). In these videos it's explained how to add different type of packages. Moreover, here is a link that will help you to build a native application for Android.