apktool is such a wonderful tool. As a side note, with newer versions of Android, it's no longer necessary to extract bytecode from odex/vdex files to disassemb

apktool is such a wonderful tool. As a side note, with newer versions of Android, it's no longer necessary to extract bytecode from odex/vdex files to disassemble systems apps or frameworks too. The apk/jar files all contain `classes<n>.dex` now (this was changed when A/B partitioning was introduced, I believe).