Develop Reference

How to check if a number in my contacts is registered to Whatsapp?

But I need this with numbers with country codes (like starting with +123 456 78 90 -that's the way I add the number as a contact)
I need a function/class to check if this number has Whatsapp.
I need this for an .apk I made in Android Studio.

private void getAllWhatsappNumbers()
{
//This class provides applications access to the content model.
ContentResolver cr = context.getContentResolver();
//RowContacts for filter Account Types
Cursor contactCursor = cr.query(
ContactsContract.RawContacts.CONTENT_URI,
new String[]{ContactsContract.RawContacts._ID,
ContactsContract.RawContacts.CONTACT_ID},
ContactsContract.RawContacts.ACCOUNT_TYPE + "= ?",
new String[]{"com.whatsapp"},
null);
if (contactCursor != null) {
if (contactCursor.getCount() > 0) {
if (contactCursor.moveToFirst()) {
do {
//whatsappContactId for get Number,Name,Id ect... from ContactsContract.CommonDataKinds.Phone
String whatsappContactId = contactCursor.getString(contactCursor.getColumnIndex(ContactsContract.RawContacts.CONTACT_ID));
if (whatsappContactId != null) {
//Get Data from ContactsContract.CommonDataKinds.Phone of Specific CONTACT_ID
Cursor whatsAppContactCursor = cr.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
new String[]{ContactsContract.CommonDataKinds.Phone.CONTACT_ID,
ContactsContract.CommonDataKinds.Phone.NUMBER,
ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME},
ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?",
new String[]{whatsappContactId}, null);
if (whatsAppContactCursor != null) {
whatsAppContactCursor.moveToFirst();
String id = whatsAppContactCursor.getString(whatsAppContactCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.CONTACT_ID));
String name = whatsAppContactCursor.getString(whatsAppContactCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
String number = whatsAppContactCursor.getString(whatsAppContactCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
Log.d("log1","no:"+number+"name:"+name);
whatsAppContactCursor.close();
//Add Number to ArrayList
myWhatsappContactsNumbers.add(number);
}
}
} while (contactCursor.moveToNext());
contactCursor.close();
}
}
}
}
With this function provided, we can get contact list on "com.whatsapp"
We put this contact list in to the array list so we need a function to show us we the number we sent is in the list (true) or not (false). How can we achieve that?

for first thing you need to have contact name and also social media package name and package name mimetype (like whatsapp >> packagename: com.whatsapp, packageMimetype: com.whatsapp)
after that this code return you that this number have selected social media or not with a boolean. :)
fun hasSocialMedia(contactName: String, socialMediaPackage: String, socialMediaMimeType: String, normilizeNumber: String?) : Boolean {
var hasSelectedSocialMedia = false
val cursor1: Cursor = _context.contentResolver.query(
RawContacts.CONTENT_URI,
arrayOf(RawContacts._ID),
RawContacts.ACCOUNT_TYPE + "= ? AND " + ContactsContract.CommonDataKinds.StructuredName.DISPLAY_NAME_PRIMARY + " = ?",
arrayOf(socialMediaPackage, contactName),
null
)!!
while (cursor1.moveToNext()) {
val rawContactId = cursor1.getString(cursor1.getColumnIndex(RawContacts._ID))
val cursor2: Cursor = _context.contentResolver.query(
ContactsContract.Data.CONTENT_URI,
arrayOf(ContactsContract.Data.DATA3),
ContactsContract.Data.MIMETYPE + " = ? AND " + ContactsContract.Data.RAW_CONTACT_ID + " = ? ",
arrayOf("vnd.android.cursor.item/vnd.$socialMediaMimeType.profile", rawContactId),
null
)!!
while (cursor2.moveToNext()) {
var phoneNumber = cursor2.getString(0)
if (TextUtils.isEmpty(phoneNumber)) continue
phoneNumber = phoneNumber.replace(" ", "")
if (phoneNumber.contains(normilizeNumber.toString(), true)) hasSelectedSocialMedia = true
else continue
}
cursor2.close()
}
cursor1.close()
return hasSelectedSocialMedia;
}

There is no proper way to check whether the contact no is registered on WhatsApp or not. But you can do one thing to check whether no is registered on WhatsApp or not.
Just pass that number to WhatsApp application using explicit intent and after passing to WhatsApp, WhatsApp open one popup which says "The given no is registered on WhatsApp" by this you can get to know whether no is registered or not.
Intent sendIntent = new Intent("android.intent.action.MAIN");
sendIntent.putExtra("jid", whatsAppNumber + "#s.whatsapp.net");
sendIntent.putExtra(Intent.EXTRA_TEXT, "whatsAppMessage");
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
sendIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
sendIntent.setPackage("com.whatsapp.w4b");
sendIntent.setType("text/*");
startActivity(sendIntent);
Here "com.whatsapp.w4b" is used for the Business WhatsApp application if you want to use normal WhatsApp then you just need to change com.whatsapp.w4b to com.whatsapp
whatsAppNumber is a number to which you want to send the WhatsApp a message
Or Second way is to find a contact from internal contact data
ArrayList<String> whatsAppContact = new ArrayList();
Cursor c = getContentResolver().query(
RawContacts.CONTENT_URI,
new String[] { RawContacts.CONTACT_ID, RawContacts.DISPLAY_NAME_PRIMARY },
RawContacts.ACCOUNT_TYPE + "= ?",
new String[] { "com.whatsapp" },
null);
ArrayList<String> myWhatsappContacts = new ArrayList<String>();
int name =
c.getColumnIndex(RawContacts.DISPLAY_NAME_PRIMARY);
while (c.moveToNext())
{
whatsAppContact.add(c.getString(name));
}

Android: get all contacts by IM

I want to query to Contacts content provider such that if a contact has IM whose type is equal to "XYZ".
I tried below way but I am not getting any result:
Uri uri1 = ContactsContract.Contacts.CONTENT_URI;
String[] projection1 = null;
String selection1 = null;
String[] selectionArgs1 = null;
String sortOrder1 = ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME + " ASC";
Cursor cursor1 = context.getContentResolver().query(uri1, projection1, selection1, selectionArgs1, sortOrder1);
if (cursor1 != null && cursor1.getCount() > 0) {
while (cursor1.moveToNext()) {
int contactId = Integer.parseInt(cursor1.getString(cursor1.getColumnIndex(ContactsContract.Contacts._ID)));
Uri uri2 = ContactsContract.Data.CONTENT_URI;
String[] projection2 = null;
String selection2 = ContactsContract.CommonDataKinds.Im.PROTOCOL + " = ? AND " + ContactsContract.Contacts._ID + " = ? ";
String[] selectionArgs2 = new String[]{"XYZ", contactId + ""};
String sortOrder2 = null;
Cursor cursor2 = context.getContentResolver().query(uri2, projection2, selection2, selectionArgs2, sortOrder2);
if (cursor2 != null && cursor2.getCount() > 0) {
while (cursor2.moveToNext()) {
Log.i(TAG, "Name: " + cursor2.getString(cursor2.getColumnIndex(ContactsContract.Data.DISPLAY_NAME)));
}
DatabaseUtils.dumpCursor(cursor2);
}
}
cursor1.close();
}
I am not getting any log with above code.
PS: I am not using built in protocols like AIM, Windows Live, Yahoo or skype. Its my custom Protocol, say it "XYZ".

For this, you need to query the ContactsContract.Data.CONTENT_URI and with the mime type as IM and then the label or type field (not sure) holds that which type of IM like you said 'XYZ' and in the value column you will get the value like a username.
There is a foreign key in this table which is linked to raw contact id of raw_contacts table.
UPDATE
Cursor cursor = getActivity().getApplicationContext().getContentResolver().query(
ContactsContract.Data.CONTENT_URI, null, ContactsContract.Data.MIMETYPE + "=?", new String[]{ContactsContract.CommonDataKinds.Im.CONTENT_ITEM_TYPE}, null);
if(cursor!=null) {
cursor.moveToFirst();
do {
String value = cursor
.getString(cursor
.getColumnIndex(ContactsContract.CommonDataKinds.Im.DATA));
//Types are defined in CommonDataKinds.Im.*
int imppType = cursor
.getInt(cursor
.getColumnIndex(ContactsContract.CommonDataKinds.Im.TYPE));
//Protocols are defined in CommonDataKinds.Im.*
int imppProtocol = cursor
.getInt(cursor
.getColumnIndex(ContactsContract.CommonDataKinds.Im.PROTOCOL));
//and in this protocol you can check your custom value
}while (cursor.moveToNext());
cursor.close();
}
Thanks

I have stumbled upon the same problem. Turns out that the protocol should be an Int instead of a String. In case of being a custom one you should use ContactsContract.CommonDataKinds.Im.PROTOCOL_CUSTOM which is an alias for -1.

How to receive local contacts with emai addresses using the content resolver

I am developing an Android app and want to receive my local contacts. To be exact I want to display all contacts which have an email address. My current approach looks like this
import android.provider.ContactsContract.CommonDataKinds.Email;
import android.provider.ContactsContract.Contacts;
import android.provider.ContactsContract.Data;
private static final String[] CONTACT_PROJECTION = new String[] {
Email.CONTACT_ID,
Contacts.DISPLAY_NAME_PRIMARY,
Email.ADDRESS,
};
Cursor data = mResolver.query(Data.CONTENT_URI,
CONTACT_PROJECTION,
Data.MIMETYPE + "='" + Email.CONTENT_ITEM_TYPE + "'",
null, Contacts.DISPLAY_NAME_PRIMARY + " ASC");
The problem using this query is, that the result contains rows that doesn't match a contact in my local address book. Probably I used those email addresses before but didn't saved it to my address book.
I have already tried another approach where I made a query on Contacts.CONTENT_URI with Contacts._ID. This id is used as a foreign key to match the contacts in a second query against their emails. The solution was a nested cursor and the runtime was really slow. For a hundred contacts the query took more than two seconds to match. This is a reason for using the async CursorLoader but I want to avoid it if possible.
Any suggestions? Thanks in advance
#Edit 1:
Unfortunately both solutions don't archive the desired improvement.
For example, when I write a new email to a previous unknown address with my gmail app afterwards the address shows up in both querys with an contact id but not in my normal address book. This kind of "contacts" flood my query.
Could it be related to the value of ContactsContract.CommonDataKinds.Email.TYPE?
#Edit 2:
I found an interesting flag Contacts.IN_VISIBLE_GROUP + "=1". It seems to filter the unwanted addresses.
Has somebody any experience with it? I don't want to filter to much.

This is what I am using in my app:
public void readContacts(){
ContentResolver cr = getContentResolver();
Cursor cur = cr.query(ContactsContract.Contacts.CONTENT_URI,
null, null, null, null);
if (cur.getCount() > 0) {
while (cur.moveToNext()) {
String id = cur.getString(cur.getColumnIndex(ContactsContract.Contacts._ID));
String name = cur.getString(cur.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
if (Integer.parseInt(cur.getString(cur.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER))) > 0) {
System.out.println("name : " + name + ", ID : " + id);
// get the phone number
Cursor pCur = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = ?",
new String[]{id}, null);
while (pCur.moveToNext()) {
String phone = pCur.getString(
pCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
System.out.println("phone" + phone);
}
pCur.close();
// get email and type
Cursor emailCur = cr.query(
ContactsContract.CommonDataKinds.Email.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Email.CONTACT_ID + " = ?",
new String[]{id}, null);
while (emailCur.moveToNext()) {
// This would allow you get several email addresses
// if the email addresses were stored in an array
String email = emailCur.getString(
emailCur.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA));
String emailType = emailCur.getString(
emailCur.getColumnIndex(ContactsContract.CommonDataKinds.Email.TYPE));
System.out.println("Email " + email + " Email Type : " + emailType);
}
emailCur.close();
}
}
}
}

I have attached one of the functions used in my project. Point of intrest would be selection and selection args.
Snippet
selection = ContactsContract.CommonDataKinds.Email.DATA + " != ?";
selectionArgs = new String[]{""};
This says selection is based on email data and it should not be null.
Similarly you can add any of the selection params as per your need.
Entire Function
public Cursor getInitCursorLoader() {
String[] PROJECTION = null;
String selection = null;
String[] selectionArgs = new String[0];
String order = null;
Uri contentURI = null;
switch (mFriendType) {
case EMAIL:
PROJECTION = new String[]{
ContactsContract.Contacts.DISPLAY_NAME,
ContactsContract.Contacts._ID,
ContactsContract.Contacts.PHOTO_ID,
ContactsContract.CommonDataKinds.Email.TIMES_CONTACTED,
ContactsContract.CommonDataKinds.Email.DATA};
selection = ContactsContract.CommonDataKinds.Email.DATA + " != ?";
selectionArgs = new String[]{""};
contentURI = ContactsContract.CommonDataKinds.Email.CONTENT_URI;
order = ContactsContract.CommonDataKinds.Email.TIMES_CONTACTED + " DESC";
break;
case SMS:
PROJECTION = new String[]{
ContactsContract.Contacts._ID,
ContactsContract.Contacts.PHOTO_ID,
ContactsContract.Contacts.DISPLAY_NAME,
ContactsContract.CommonDataKinds.Phone.TIMES_CONTACTED,
ContactsContract.CommonDataKinds.Phone.NUMBER,
ContactsContract.CommonDataKinds.Phone.TYPE};
selection = ContactsContract.CommonDataKinds.Phone.TYPE + " = ?";
selectionArgs = new String[]{String.valueOf(ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE)};
contentURI = ContactsContract.CommonDataKinds.Phone.CONTENT_URI;
order = ContactsContract.CommonDataKinds.Phone.TIMES_CONTACTED + " DESC";
break;
}
return mContext.getContentResolver().query(contentURI, PROJECTION, selection, selectionArgs, order);
}

How to get merged Contact's photo?

I am trying to figure out how to get the photo for a merged contact, to display in a QuickContactBadge. I've been searching and googling, and all the things I can find online say this is not possible if the contact's default image comes from a Facebook sync. However all the examples I find also reference Froyo or Gingerbread.
Is there still no way to do this in the ICS/JB age?
This answer seemed the most promising, but the comments seem to say it is hit or miss.
None of the things I've found online have worked for me.
Here is the code I currently have:
public static Uri getContactPhotoUri(long ContactId) {
Uri person = ContentUris.withAppendedId(Contacts.CONTENT_URI, ContactId);
Uri photo = Uri.withAppendedPath(person, Contacts.Photo.CONTENT_DIRECTORY);
Cursor cur = App.ContentResolver().query(
Data.CONTENT_URI,
new String[] { Data._ID },
ContactsContract.Data.CONTACT_ID
+ "="
+ ContactId
+ " AND "
+ Data.MIMETYPE
+ "='"
+ Photo.CONTENT_ITEM_TYPE
+ "'", null, Data.IS_PRIMARY + " DESC");
Uri rv = null;
rv = (cur == null || !cur.moveToFirst())? null: photo;
if (cur != null) cur.close();
return rv;
}
It shows the image properly for contacts where the image comes from the google contact.
The image does not show properly for contacts where the primary image comes from Facebook.
Is there REALLY, still, no reliable way to get the default image for a contact regardless of where the image comes from?
EDIT (01/18/2013): I've also tried querying the PHOTO_URI and PHOTO_THUMBNAIL_URI as follows, with the same results.
public static String[] GroupMembersProjection = new String[] {
Contacts._ID,
Contacts.LOOKUP_KEY,
Contacts.DISPLAY_NAME_PRIMARY,
Contacts.PHOTO_THUMBNAIL_URI
};
public static Cursor getGroupMembers(int groupid, String sort) {
String ord;
if (sort.equals("A")) { ord = Contacts.DISPLAY_NAME_PRIMARY; }
else { ord = Contacts.TIMES_CONTACTED + " DESC"; /* SORT = "U"; DEFAULT */ }
ContentResolver cr = App.ContentResolver();
Cursor contacts = cr.query(Data.CONTENT_URI,
GroupMembersProjection,
GroupMembership.GROUP_ROW_ID + "=" + groupid, null, ord);
return contacts;
}
Additionally, I tried querying PHOTO_ID instead of the PHOTO_URI fields, and then using the following code to get the URI manually and use that for the image, but this also yields the same results, showing google images, but not Facebook ones.
Uri puri = ContentUris.withAppendedId(ContactsContract.Data.CONTENT_URI, photoid);

How to get Contact ID, Email, Phone number in one SQLite query ? Contacts Android Optimization

I want to fetch All Contacts atleast with one phone Number, also I want all Phone Numbers and All emails for every Contact.
Current code :
// To get All Contacts having atleast one phone number.
Uri uri = ContactsContract.Contacts.CONTENT_URI;
String selection = ContactsContract.Contacts.HAS_PHONE_NUMBER + " > ?";
String[] selectionArgs = new String[] {"0"};
Cursor cu = applicationContext.getContentResolver().query(uri,
null, selection, selectionArgs, null);
// For getting All Phone Numbers and Emails further queries :
while(cu.moveToNext()){
String id = cu.getString(cu.getColumnIndex(ContactsContract.Contacts._ID));
// To get Phone Numbers of Contact
Cursor pCur = context.getContentResolver().query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,ContactsContract.CommonDataKinds.Phone.CONTACT_ID + "=?",
new String[]{id}, null);
// To get Email ids of Contact
Cursor emailCur = context.getContentResolver().query(
ContactsContract.CommonDataKinds.Email.CONTENT_URI, null,
ContactsContract.CommonDataKinds.Email.CONTACT_ID + " = ?",
new String[]{id}, null);
// Iterate through these cursors to get Phone numbers and Emails
}
If there are more than 1000 contacts in my Device, it is taking too much time. How can I get All Data in single query, rather than doing two additional queries for each contact?
Or is there any other way to optimize?
Thank you in Advance.

ICS: When you query from Data.CONTENT_URI you have all the rows from the associated Contact already joined - i.e. this would work:
ContentResolver resolver = getContentResolver();
Cursor c = resolver.query(
Data.CONTENT_URI,
null,
Data.HAS_PHONE_NUMBER + "!=0 AND (" + Data.MIMETYPE + "=? OR " + Data.MIMETYPE + "=?)",
new String[]{Email.CONTENT_ITEM_TYPE, Phone.CONTENT_ITEM_TYPE},
Data.CONTACT_ID);
while (c.moveToNext()) {
long id = c.getLong(c.getColumnIndex(Data.CONTACT_ID));
String name = c.getString(c.getColumnIndex(Data.DISPLAY_NAME));
String data1 = c.getString(c.getColumnIndex(Data.DATA1));
System.out.println(id + ", name=" + name + ", data1=" + data1);
}
If you are targeting 2.3 you need to account for the fact that HAS_PHONE_NUMBER is not available through the joins used when querying Data.
Fun.
This could, for instance, be solved either by skipping your requirement that the contact must have a phone number and instead settle for "any contact with at least a phone number or an e-mail address":
Cursor c = resolver.query(
Data.CONTENT_URI,
null,
Data.MIMETYPE + "=? OR " + Data.MIMETYPE + "=?",
new String[]{Email.CONTENT_ITEM_TYPE, Phone.CONTENT_ITEM_TYPE},
Data.CONTACT_ID);
If that is not an option you can always go for a horribly hacky sub-select:
Cursor c = resolver.query(
Data.CONTENT_URI,
null,
"(" + Data.MIMETYPE + "=? OR " + Data.MIMETYPE + "=?) AND " +
Data.CONTACT_ID + " IN (SELECT " + Contacts._ID + " FROM contacts WHERE " + Contacts.HAS_PHONE_NUMBER + "!=0)",
new String[]{Email.CONTENT_ITEM_TYPE, Phone.CONTENT_ITEM_TYPE}, Data.CONTACT_ID);
or solve it by using two Cursors:
Cursor contacts = resolver.query(Contacts.CONTENT_URI,
null, Contacts.HAS_PHONE_NUMBER + " != 0", null, Contacts._ID + " ASC");
Cursor data = resolver.query(Data.CONTENT_URI, null,
Data.MIMETYPE + "=? OR " + Data.MIMETYPE + "=?",
new String[]{Email.CONTENT_ITEM_TYPE, Phone.CONTENT_ITEM_TYPE},
Data.CONTACT_ID + " ASC");
int idIndex = contacts.getColumnIndexOrThrow(Contacts._ID);
int nameIndex = contacts.getColumnIndexOrThrow(Contacts.DISPLAY_NAME);
int cidIndex = data.getColumnIndexOrThrow(Data.CONTACT_ID);
int data1Index = data.getColumnIndexOrThrow(Data.DATA1);
boolean hasData = data.moveToNext();
while (contacts.moveToNext()) {
long id = contacts.getLong(idIndex);
System.out.println("Contact(" + id + "): " + contacts.getString(nameIndex));
if (hasData) {
long cid = data.getLong(cidIndex);
while (cid <= id && hasData) {
if (cid == id) {
System.out.println("\t(" + cid + "/" + id + ").data1:" +
data.getString(data1Index));
}
hasData = data.moveToNext();
if (hasData) {
cid = data.getLong(cidIndex);
}
}
}
}

I went through the exact same problem. Since then I build my own solution which is inspired from this post yet a bit different. Now I'd like to share it as my first StackOverFlow answer :-)
Its quite similar to the double cursor approach suggested by Jens. The idea is to
1- fetch relevant contact from the Contacts table
2- fetch relevant Contacts information (mail, phone, ...)
3- combine these results
The "relevant" is up to you of course but the important point is the performance !
Besides, I'm sure other solutions using well suited SQL query might as well do the job but here I only want to use the Android ContentProvider
Here is the code :
Some constants
public static String CONTACT_ID_URI = ContactsContract.Contacts._ID;
public static String DATA_CONTACT_ID_URI = ContactsContract.Data.CONTACT_ID;
public static String MIMETYPE_URI = ContactsContract.Data.MIMETYPE;
public static String EMAIL_URI = ContactsContract.CommonDataKinds.Email.DATA;
public static String PHONE_URI = ContactsContract.CommonDataKinds.Phone.DATA;
public static String NAME_URI = (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) ? ContactsContract.Data.DISPLAY_NAME_PRIMARY : ContactsContract.Data.DISPLAY_NAME;
public static String PICTURE_URI = (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) ? ContactsContract.Contacts.PHOTO_THUMBNAIL_URI : ContactsContract.Contacts.PHOTO_ID;
public static String MAIL_TYPE = ContactsContract.CommonDataKinds.Email.CONTENT_ITEM_TYPE;
public static String PHONE_TYPE = ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE;
1 Contact
Here I require that the Contacts must have DISPLAY_NAME free of "#" and that their informations match a given string (these requirement can of course be modified). The result of the following method is the first cursor :
public Cursor getContactCursor(String stringQuery, String sortOrder) {
Logger.i(TAG, "+++++++++++++++++++++++++++++++++++++++++++++++++++");
Logger.e(TAG, "ContactCursor search has started...");
Long t0 = System.currentTimeMillis();
Uri CONTENT_URI;
if (stringQuery == null)
CONTENT_URI = ContactsContract.Contacts.CONTENT_URI;
else
CONTENT_URI = Uri.withAppendedPath(ContactsContract.Contacts.CONTENT_FILTER_URI, Uri.encode(stringQuery));
String[] PROJECTION = new String[]{
CONTACT_ID_URI,
NAME_URI,
PICTURE_URI
};
String SELECTION = NAME_URI + " NOT LIKE ?";
String[] SELECTION_ARGS = new String[]{"%" + "#" + "%"};
Cursor cursor = sContext.getContentResolver().query(CONTENT_URI, PROJECTION, SELECTION, SELECTION_ARGS, sortOrder);
Long t1 = System.currentTimeMillis();
Logger.e(TAG, "ContactCursor finished in " + (t1 - t0) / 1000 + " secs");
Logger.e(TAG, "ContactCursor found " + cursor.getCount() + " contacts");
Logger.i(TAG, "+++++++++++++++++++++++++++++++++++++++++++++++++++");
return cursor;
}
This query is quite performant as you'll see !
2 Contact Details
Now let's fetch Contact informations. At this point, I dont make any link between the already fetched Contact and the retrieved information : I just fetch all informations form the Data table... Yet, to avoid useless info I still require DISPLAY_NAMES free of "#" and since I'm interested in email and phone I require that the data MIMETYPE to be either MAIL_TYPE or PHONE_TYPE (see Constants). Here is the code :
public Cursor getContactDetailsCursor() {
Logger.i(TAG, "+++++++++++++++++++++++++++++++++++++++++++++++++++");
Logger.e(TAG, "ContactDetailsCursor search has started...");
Long t0 = System.currentTimeMillis();
String[] PROJECTION = new String[]{
DATA_CONTACT_ID_URI,
MIMETYPE_URI,
EMAIL_URI,
PHONE_URI
};
String SELECTION = ContactManager.NAME_URI + " NOT LIKE ?" + " AND " + "(" + MIMETYPE_URI + "=? " + " OR " + MIMETYPE_URI + "=? " + ")";
String[] SELECTION_ARGS = new String[]{"%" + "#" + "%", ContactsContract.CommonDataKinds.Email.CONTENT_ITEM_TYPE, ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE};
Cursor cursor = sContext.getContentResolver().query(
ContactsContract.Data.CONTENT_URI,
PROJECTION,
SELECTION,
SELECTION_ARGS,
null);
Long t1 = System.currentTimeMillis();
Logger.e(TAG, "ContactDetailsCursor finished in " + (t1 - t0) / 1000 + " secs");
Logger.e(TAG, "ContactDetailsCursor found " + cursor.getCount() + " contacts");
Logger.i(TAG, "+++++++++++++++++++++++++++++++++++++++++++++++++++");
return cursor;
}
Once again you will see that this query is quite fast...
3 Combining
Now let's combine both Contact and their respective informations. The idea is to use HashMap(Key, String) where Key is the Contact id and String is whatever you like (name, email, ...).
First, I run through the Contact cursor (which is alphabetically ordered) and store names and picture uri in two different HashMap. Note also that I store all Contact id's in a List in the very same order that Contacts appear in the cursor. Lets call this list contactListId
I do the same for the Contact informations (mail and email). But now I take care of the correlation between the two cursor : if the CONTACT_ID of an email or phone does not appear in contactListId it is put aside. I check also if the email has already been encountered. Notice that this further selection can introduce asymmetries between the Name/Picture content and the Email/Phone HashMap content but don't worry.
Eventually, I run over the contactListId list and build a list of Contact object taking care of the fact that : a contact must have information (keySet condition) and that the contact must have at least a mail or an email (the case where mail == null && phone == null may appear if the contact is a Skype contact for instance).
And here is the code :
public List<Contact> getDetailedContactList(String queryString) {
/**
* First we fetch the contacts name and picture uri in alphabetical order for
* display purpose and store these data in HashMap.
*/
Cursor contactCursor = getContactCursor(queryString, NAME_URI);
List<Integer> contactIds = new ArrayList<>();
if (contactCursor.moveToFirst()) {
do {
contactIds.add(contactCursor.getInt(contactCursor.getColumnIndex(CONTACT_ID_URI)));
} while (contactCursor.moveToNext());
}
HashMap<Integer, String> nameMap = new HashMap<>();
HashMap<Integer, String> pictureMap = new HashMap<>();
int idIdx = contactCursor.getColumnIndex(CONTACT_ID_URI);
int nameIdx = contactCursor.getColumnIndex(NAME_URI);
int pictureIdx = contactCursor.getColumnIndex(PICTURE_URI);
if (contactCursor.moveToFirst()) {
do {
nameMap.put(contactCursor.getInt(idIdx), contactCursor.getString(nameIdx));
pictureMap.put(contactCursor.getInt(idIdx), contactCursor.getString(pictureIdx));
} while (contactCursor.moveToNext());
}
/**
* Then we get the remaining contact information. Here email and phone
*/
Cursor detailsCursor = getContactDetailsCursor();
HashMap<Integer, String> emailMap = new HashMap<>();
HashMap<Integer, String> phoneMap = new HashMap<>();
idIdx = detailsCursor.getColumnIndex(DATA_CONTACT_ID_URI);
int mimeIdx = detailsCursor.getColumnIndex(MIMETYPE_URI);
int mailIdx = detailsCursor.getColumnIndex(EMAIL_URI);
int phoneIdx = detailsCursor.getColumnIndex(PHONE_URI);
String mailString;
String phoneString;
if (detailsCursor.moveToFirst()) {
do {
/**
* We forget all details which are not correlated with the contact list
*/
if (!contactIds.contains(detailsCursor.getInt(idIdx))) {
continue;
}
if(detailsCursor.getString(mimeIdx).equals(MAIL_TYPE)){
mailString = detailsCursor.getString(mailIdx);
/**
* We remove all double contact having the same email address
*/
if(!emailMap.containsValue(mailString.toLowerCase()))
emailMap.put(detailsCursor.getInt(idIdx), mailString.toLowerCase());
} else {
phoneString = detailsCursor.getString(phoneIdx);
phoneMap.put(detailsCursor.getInt(idIdx), phoneString);
}
} while (detailsCursor.moveToNext());
}
contactCursor.close();
detailsCursor.close();
/**
* Finally the contact list is build up
*/
List<Contact> contacts = new ArrayList<>();
Set<Integer> detailsKeySet = emailMap.keySet();
for (Integer key : contactIds) {
if(!detailsKeySet.contains(key) || (emailMap.get(key) == null && phoneMap.get(key) == null))
continue;
contacts.add(new Contact(String.valueOf(key), pictureMap.get(key), nameMap.get(key), emailMap.get(key), phoneMap.get(key)));
}
return contacts;
}
The Contact object definition is up to you.
Hope this will help and thanks for the previous post.
Correction/Improvement
I forgot to check the phone key set : it should rather looks like
!mailKeySet.contains(key)
replaced by
(!mailKeySet.contains(key) && !phoneKeySet.contains(key))
with the phone keySet
Set<Integer> phoneKeySet = phoneMap.keySet();
I why not add an empty contact cursor check like :
if(contactCursor.getCount() == 0){
contactCursor.close();
return new ArrayList<>();
}
right after the getContactCursor call