Java Question Add permissions in code

Hi all.
i m working on a simple lib, i will use compile to library function to make this lib.

some functions of this lib need permissions, like set Wallpaper
this function need
to works.

my question is..
how can i automatic add this permission on the lib? for now i need add manualy on manifest.

how can i check if the user is using this function and automatic add this permission? and if the user dont use the set wallpaper function, how can i remove this automatic?

thx

Permissions are tied to objects (types). You need to add this method to a different class.

You add permissions with the @Permissions annotation.