I’m building a native app tha all its entities should commadate in sqlite database.
I was looking over to find a decent ORM tool for android that whould be similar to the
CoreData of the Iphone(which supports graphical design and code generation).
I would like to build my entities code according to the graphic design.
If it is just about creating and managing the database and you can use SQLite, then take a look at this page:
List of Management Tools for SQLite
There are a lot of tools listet, that work with SQLite and there should certainly be one that suits your need.
Also, I think you are using the wrong term with ORM. What you want is a management tool, where you can build your DB with a designer. An ORM system is basically a mapper between your database and your programming language. ORM would come in to play, when you want to represent your database in code.
See the description from wikipedia:
Wikipedia page on ORM