ProGuard可以将访问修饰符更改为程序包专用吗？

Question

Is it possible, using ProGuard, to move all your obfuscated classes to a named package and change their public or protected methods or member variables to package protected?

I know you can use -repackageclasses to move the classes, but it seems -allowaccessmodification changes access modifiers to public. The goal is to prevent users of my library from being able to use anything but the exposed public API. Any help is appreciated.

Edit: I meant package-private not package-protected.

Answer 1

I don't think you can, and I don't think you should. When classes are compiled and code won't change, relaxing the object/method qualifiers won't alter access patterns; in other words, an object that successfully called a protected method/object would still have access to it if the qualifier is changed to public . The opposite is not true; a public object/method that turns protected could become invisible/inaccessible to the calling object all of a sudden - rendering badly compiled code. I have used ProGuard before, but my answer is based on logic rather than experimentation.