SQLiteDatabase - database file

I created android application which use DataBase. So I have such a method which fills up the database.

private  void Add(String Name,String Descrition)
    {
        try
        {
            SQLiteDatabase db = this.getWritableDatabase();
            db.execSQL("Insert into Tablename (Name,Description) "
                    + "values ('" + Name + "' ,'" + Description "));


        }
        catch (Exception ex)
        {
        }
    }

When my application is running on the device for the first time, application fill up database by calling this method many times. My application use many a lot of data, so first launch of the application takes a long time. So I have one questions.

Is the possible create database file and next attach to application?? As a result, application would have to be filling up the database for the first time. How do it ??