There are many facets to theming and development. Whether it’s changing out the dreaded NinePatch files to make a theme complete, adding init.d scripts to make things work better, or compiling and decompiling .apk files to make modifications, the end product is a big thing made up of little processes. The last example, compiling and decompiling .apk files is definitely among the top skills needed for good ROM development, and any aspiring developer should know how to do so. Aspiring Samsung Galaxy S I9000 developers now have a tutorial that walks readers through editing odexed framework files in a simple and unintimidating manner.
XDA Recognized Developer M_J_Nazari, with the help of a few others, has written up the tutorial for users who need to edit the odex files on a ROM on the fly, as the whole process takes place on an SD card. The process, which includes a .bat script and some ADB commands, walks the user through manually editing an odex file. The examples mainly consist of framework files and the tutorial is intended for such, so users looking to edit some framework files on the fly, including the services.jar, need only to follow the instructions. While the guide was originally intended for Samsung Galaxy S I9000 users, a few edits to the .bat file along with the universal ABD commands can help anyone on any device as well.
For more info, the full method, the download link for the script and more, check out the original thread! As usual, don’t forget to make a backup if you make edits to any framework file on a ROM you’re running, in case you mess up and need to restore._________