Android to get frequntly contacts

getFrequntlyContacts.java

/**
     *  자주거는(전화 횟수 기준) 4명을 기본으로 가져옴
     *  연락한 횟수 내림차순으로 상위 4개에 대해 View를 만듬
     **/
    private ArrayList<Contact> getFrequntlyContacts() {
        String selection = Contacts.HAS_PHONE_NUMBER + " == ?";
        String[] selectionArgs = new String[]{"1"};

        ContentResolver cr = context.getContentResolver();
        Cursor cur = cr.query(Contacts.CONTENT_URI, new String[]{Contacts._ID, Contacts.DISPLAY_NAME, Contacts.PHOTO_ID, Contacts.TIMES_CONTACTED, Contacts.HAS_PHONE_NUMBER}, selection, selectionArgs, Contacts.TIMES_CONTACTED + " DESC");

        ArrayList<Contact> contact_list = new ArrayList<Contact>();

        while (cur.moveToNext() && contact_list.size() < 4) {
            String id = cur.getString(cur.getColumnIndex(Contacts._ID));
            String name = cur.getString(cur.getColumnIndex(Contacts.DISPLAY_NAME));
            String phone_number = contactHelper.getPhoneNumberWithContactId(id);
            int photo_id = cur.getInt(cur.getColumnIndex(Contacts.PHOTO_ID));

            Contact contact = new Contact(id, name, phone_number, photo_id);
            contact_list.add(contact);
        }
        cur.close();

        return contact_list;
    }