Can I decompile a Android APK or program who creat with java or kotlin code?

Answer 1

You can easily write a program to convert the binary to assembly. Figuring out the higher level language from there is difficult. It use to be easier before optimization, as the code for each statement was together. Now, the optimization moves things around to save instructions leaving you unable to guess what was originally there.

Answer 2

Yes you are right. A few day ago I Decompile my simple APK to java code.but a see many code that I not write them😐.and I couldn't find my original main activity code.