Efficient way to download all contacts and all phone numbers (Android 2.0)

Question

Is there a way to get all the phone numbers for all contacts without a separate request for each contact? (using Android 2.0+). This is very slow, if you have more than 100 contacts (unsuitable for use on low-end phones), I wondered if I could make a more efficient request.

Currently, I get a cursor with all valid ContactsContract.Contacts.IN_VISIBLE_GROUP contacts, and then a separate request for each contact to get all its numbers.

A snippet from the Contacts list just enter a name and search key:

Uri uri = ContactsContract.Contacts.CONTENT_URI; String[] projection = new String[] { ContactsContract.Contacts.DISPLAY_NAME, ContactsContract.Contacts.LOOKUP_KEY}; 

Then each contact uses a search key.

 Uri lookupUri = Uri.withAppendedPath(ContactsContract.Contacts.CONTENT_LOOKUP_URI, lookupKey); Uri res = ContactsContract.Contacts.lookupContact(contentResolver, lookupUri); String[] projection = new String[]{ContactsContract.Contacts._ID, ContactsContract.Contacts.DISPLAY_NAME, ContactsContract.Contacts.HAS_PHONE_NUMBER}; 

...

 Cursor phones = contentResolver.query( ContactsContract.CommonDataKinds.Phone.CONTENT_URI, phoneProjection, selection, selectionArgs, sortOrder); 

Answer 1

Check if the code below helps

  public ArrayList<PhoneContactInfo> getAllPhoneContacts() { Log.d("START","Getting all Contacts"); ArrayList<PhoneContactInfo> arrContacts = new ArrayList<PhoneContactInfo>(); PhoneContactInfo phoneContactInfo=null; Uri uri = ContactsContract.CommonDataKinds.Phone.CONTENT_URI; Cursor cursor = context.getContentResolver().query(uri, new String[] {ContactsContract.CommonDataKinds.Phone.NUMBER,ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME,ContactsContract.CommonDataKinds.Phone._ID}, null, null, ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME + " ASC"); cursor.moveToFirst(); while (cursor.isAfterLast() == false) { String contactNumber= cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)); String contactName = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME)); int phoneContactID = cursor.getInt(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone._ID)); phoneContactInfo = new PhoneContactInfo(); phoneContactInfo.setPhoneContactID(phoneContactID); phoneContactInfo.setContactName(contactName); phoneContactInfo.setContactNumber(contactNumber); if (phoneContactInfo != null) { arrContacts.add(phoneContactInfo); } phoneContactInfo = null; cursor.moveToNext(); } cursor.close(); cursor = null; Log.d("END","Got all Contacts"); return arrContacts; } 

Answer 2

Why are you using?

Contract.Contacts.IN_VISIBLE_GROUP

All contacts in android are assigned in Contract.Contacts.IN_VISIBLE_GROUP