IllegalAccessError: Method is inaccessible to class

Question

I\'ve got very strange error, because it only happens after installing app from generated .apk. When I try to run the app through IDE, it works fine.

Answer 1

While I'm not sure why this results in IllegalAccessError, you should be defining those constants like this:

companion object {
    const val ANIMATION_DEFAULT = 0
    const val ANIMATION_SLIDE_FROM_RIGHT = 1
    const val ANIMATION_SLIDE_FROM_BOTTOM = 2
}

And that should solve your problem, otherwise using @JvmField instead of @JvmStatic would have been a better choice.