Android Question Creating multi wrapper class in single file

the main class you can write the version and another class only write the name for calling later.

thanks westingrnirtia but when I want To create another class inherits from the base class and import the library in the main class and the second class message shown that the sub is already created in other class How Can I import same library in main class and the second class when I try to import second class in main class some functions not defined and must import the library

The simple option is to create a library with all the relevant classes.

If it is not possible then you will need to compile the first classes to a library. Add a reference to that library and compile the other classes that depend on the first classes.

thanks Erel but IF I inherit the library in my class all it functions will be visible in my library or only functions that I created because I want To wrapper the library that reference in my library through import keyword If I want To add it To my library I must inherit it or there another to do that