Android get all contacts telephone number in ArrayList

Question

I am trying to save all contacts telephone numbers in an ArrayList but I cant find a way how. Is there a way to get them instead of picking them one by one with ContactsCont

Answer 1

This code will work much faster than code in the answer, because you don't make additional query for each contact.

private static final String CONTACT_ID = ContactsContract.Contacts._ID;
private static final String HAS_PHONE_NUMBER = ContactsContract.Contacts.HAS_PHONE_NUMBER;

private static final String PHONE_NUMBER = ContactsContract.CommonDataKinds.Phone.NUMBER;
private static final String PHONE_CONTACT_ID = ContactsContract.CommonDataKinds.Phone.CONTACT_ID;

public static ArrayList getAll(Context context) {
    ContentResolver cr = context.getContentResolver();

    Cursor pCur = cr.query(
            ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
            new String[]{PHONE_NUMBER, PHONE_CONTACT_ID},
            null,
            null,
            null
    );
    if(pCur != null){
        if(pCur.getCount() > 0) {
            HashMap> phones = new HashMap<>();
            while (pCur.moveToNext()) {
                Integer contactId = pCur.getInt(pCur.getColumnIndex(PHONE_CONTACT_ID));
                ArrayList curPhones = new ArrayList<>();
                if (phones.containsKey(contactId)) {
                    curPhones = phones.get(contactId);
                }
                curPhones.add(pCur.getString(pCur.getColumnIndex(PHONE_NUMBER)));
                phones.put(contactId, curPhones);
            }
            Cursor cur = cr.query(
                    ContactsContract.Contacts.CONTENT_URI,
                    new String[]{CONTACT_ID, HAS_PHONE_NUMBER},
                    HAS_PHONE_NUMBER + " > 0",
                    null,null);
            if (cur != null) {
                if (cur.getCount() > 0) {
                    ArrayList contacts = new ArrayList<>();
                    while (cur.moveToNext()) {
                        int id = cur.getInt(cur.getColumnIndex(CONTACT_ID));
                        if(phones.containsKey(id)) {
                            contacts.addAll(phones.get(id));
                        }
                    }
                    return contacts;
                }
                cur.close();
            }
        }
        pCur.close();
    }
    return null;
}