lvPhone = (ListView)findViewById(R.id.listPhone);

        List<PhoneBook> listPhoneBook = new ArrayList<PhoneBook>();
        listPhoneBook.add(new PhoneBook("Pete Houston", "010-9817-6331", "pete.houston.17187@gmail.com"));
        listPhoneBook.add(new PhoneBook(
                "Lina Cheng", "046-7764-1142", "lina.cheng011@sunny.com"));
        listPhoneBook.add(new PhoneBook(
                "Jenny Nguyen", "0913-223-498", "jenny_in_love98@yahoo.com"));
        PhoneBookAdapter adapter = new PhoneBookAdapter(this, listPhoneBook);
        lvPhone.setAdapter(adapter);
    }
}