Develop Reference

how to fetch local phone contacts effeciently

I am using the below code to fetch the local phone contacts. It is working fine and also fetching the contacts very fast.
But the problem comes here, in my contact list there are few contacts that are having multiple Emails and multiple phone numbers.
In case of multiple phone or emails address it repeats the name of the same person multiple times.
And if i change
ContactsContract.CommonDataKinds.Email.CONTENT_URI
to ContactsContract.CommonDataKinds.Phone.CONTENT_URI then it will repeat name according to the number of phone number exists for a contact. Please help
private static final String[] PROJECTION = new String[]{
ContactsContract.CommonDataKinds.Email.CONTACT_ID,
ContactsContract.CommonDataKinds.Nickname.DISPLAY_NAME,
ContactsContract.CommonDataKinds.Email.DATA,
ContactsContract.CommonDataKinds.Phone.NUMBER,
};
ContentResolver cr = mContext.getContentResolver();
Cursor cursor = cr.query(ContactsContract.CommonDataKinds.Email.CONTENT_URI, PROJECTION, null, null, null);
if (cursor != null) {
try {
final int contactIdIndex = cursor.getColumnIndex(ContactsContract.CommonDataKinds.Email.CONTACT_ID);
final int displayNameIndex = cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME);
final int emailIndex = cursor.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA);
final int phoneIndex = cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER);
long contactId;
String displayName, email, phone, photo;
while (cursor.moveToNext()) {
mNK_UserModel = new NK_Contact();
contactId = cursor.getLong(contactIdIndex);
displayName = cursor.getString(displayNameIndex);
//Adding display name
mNK_UserModel.setFirstName(displayName);
Util.DEBUG_LOG(1, "contact", "contact id :" + contactId);
al_PhoneContacts.add(mNK_UserModel);
}
} finally {
cursor.close();
}
}

If i had to guess i would say you are missing a "break" in your while-loop. Since the cursor tries to fetch the next available column entry. But have a look at my solution which worked for me in the past.
It uses a seperate cursor for each row which gives you more control over the data.
Map<String, String> contactDataMap = new HashMap<String, String>();
Uri contactData = data.getData();
Cursor cursor = getContentResolver().query(contactData, null, null, null, null);
cursor.moveToFirst();
String name = cursor.getString(cursor.getColumnIndexOrThrow(ContactsContract.Contacts.DISPLAY_NAME));
String id = cursor.getString(cursor.getColumnIndexOrThrow(ContactsContract.Contacts._ID));
contactDataMap.put(NAME, (name != null)?name:"");
if (Integer.parseInt(cursor.getString(
cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER))) > 0) {
Cursor pCur = getContentResolver().query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?",
new String[]{id},
null);
while (pCur.moveToNext()) {
String number = pCur.getString(pCur.getColumnIndexOrThrow(ContactsContract.CommonDataKinds.Phone.NUMBER));
contactDataMap.put(PHONE, (number != null)?number:"");
break;
}
pCur.close();
}
Cursor emailCur = getContentResolver().query(
ContactsContract.CommonDataKinds.Email.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Email.CONTACT_ID + " = ?",
new String[]{id}, null);
while (emailCur.moveToNext()) {
String email = emailCur.getString(
emailCur.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA));
contactDataMap.put(MAIL, (email != null)?email:"");
break;
}
emailCur.close();
cursor.close();

How to get contacts with email or phone number

How can I get a list of contacts that either have a phone number or an email in Android.
I'm a bit confused with the contracts and how can I join the info.
Thank you

Here is how I fetched contacts with email and phone number. The Contact object is just a simple pojo that I created. This code is in an AsyncTask that I run after the user has provided permission to access Contacts.
ContentResolver cr = getContentResolver();
Cursor cursor = cr.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
if (cursor != null && cursor.moveToFirst()) {
do {
// get the contact's information
String id = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
String name = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
Integer hasPhone = cursor.getInt(cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER));
// get the user's email address
String email = null;
Cursor ce = cr.query(ContactsContract.CommonDataKinds.Email.CONTENT_URI, null,
ContactsContract.CommonDataKinds.Email.CONTACT_ID + " = ?", new String[]{id}, null);
if (ce != null && ce.moveToFirst()) {
email = ce.getString(ce.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA));
ce.close();
}
// get the user's phone number
String phone = null;
if (hasPhone > 0) {
Cursor cp = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?", new String[]{id}, null);
if (cp != null && cp.moveToFirst()) {
phone = cp.getString(cp.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
cp.close();
}
}
// if the user user has an email or phone then add it to contacts
if ((!TextUtils.isEmpty(email) && android.util.Patterns.EMAIL_ADDRESS.matcher(email).matches()
&& !email.equalsIgnoreCase(name)) || (!TextUtils.isEmpty(phone))) {
Contact contact = new Contact();
contact.name = name;
contact.email = email;
contact.phoneNumber = phone;
contacts.add(contact);
}
} while (cursor.moveToNext());
// clean up cursor
cursor.close();
}
For DISPLAY_NAME you can use the following:
private final String DISPLAY_NAME = Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB ?
ContactsContract.Contacts.DISPLAY_NAME_PRIMARY : ContactsContract.Contacts.DISPLAY_NAME;
Here is a link to an AsyncTask Example that I use with this.

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) {
Cursor pCur = cr.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = ?",
new String[]{id}, null);
while (pCur.moveToNext()) {
String phoneNo = pCur.getString(pCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
Toast.makeText(NativeContentProvider.this, "Name: " + name + ", Phone No: " + phoneNo, Toast.LENGTH_SHORT).show();
}
pCur.close();
}
}
}

getting email from Android phone contacts

Please, I've been trying all day to get the email address of all the contact on a phone but somehow, i can't get it to work. Please can someone tell me where am going wrong.. all others work except getting the email. Thanks in advance
Cursor cursor = getContentResolver().query( ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null,null, null);
//now we have cusror with contacts and get diffrent value from cusror.
while (cursor.moveToNext()) {
String id = cursor.getString(cursor
.getColumnIndex(ContactsContract.Contacts._ID));
String name =cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
contactView.append("Name: ");
contactView.append(name);
contactView.append("\n");
if (Integer
.parseInt(cursor.getString(cursor
.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER))) > 0) {
String phoneNumber = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
contactView.append("Number: ");
contactView.append(phoneNumber);
contactView.append("\n");}
//get email cursor
Cursor ecursor = getContentResolver().query(ContactsContract.CommonDataKinds.Email.CONTENT_URI,null, ContactsContract.CommonDataKinds.Email.CONTACT_ID + " = "+id,
null, null);
while (ecursor.moveToNext()) {
String email = ecursor.getString(ecursor.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA));
if(email != null){
contactView.append("email: ");
contactView.append(email);
contactView.append("\n");
}
}
ecursor.close();
}
cursor.close();

Contact ListVew Working In Emulator But Not in Real Device

I have made an application in Android 2.2 that Displays only three things in listview. All Phone book, Contacts, and Number in ListView with CheckBox. When I Run The App in Emulator 2.2 then it is working properly, but when I use the real device to test an application then it will only display contacts Email ids and when CheckBoxes are used the app crashes.
I want clear that I don't call email ids from anywhere. I have used the code below to call fetch contact details from Phone book.
In BaseAdapter Class :
ContentResolver cr = getContentResolver();
cr = context.getContentResolver();
cursor = cr.query(
ContactsContract.Contacts.CONTENT_URI,
null,
null,
null,
null);
public View getView(final int position, View convertView, ViewGroup parentView)
{
if(cursor != null){
while(cursor.moveToNext()){
int nameFiledColumnIndex = cursor.getColumnIndex(
ContactsContract.Contacts.DISPLAY_NAME);
String id = cursor.getString(
cursor.getColumnIndex(ContactsContract.Contacts._ID));
Cursor pCur = cr.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = ?",
new String[]{id}, null);
while (pCur.moveToNext()) {
phoneNo = pCur.getString(pCur.getColumnIndex(
ContactsContract.CommonDataKinds.Phone.NUMBER));
}
Does anybody have any idea about what mistakes I have made ?

Try this one...
ContentResolver contentResolver = getContentResolver();
Cursor cur = contentResolver.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) {
// Query phone here. Covered next
Cursor phoneCur = contentResolver.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID
+ " = ?", new String[] { id }, null);
while (phoneCur.moveToNext()) {
// Do something with phones
String phoneNo = phoneCur.getString(pCur
.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
contactDataset = new ContactDataset(); //This is object of dataset class to add the contacts.
contactDataset.setName(name);
contactDataset.setPhoneNumber(phoneNo);
getContactList.add(contactDataset);
}
pCur.close();
}
}
}
Let me know is it works or not.......

How to get contact email id?

I have a listview of all the contact names in the phone. I want to get the email id (if contact have one) of the contact which I click on in the listview. How can I do this?

Use the following code to get all email ids. I checked the code. It is working.
public static void getContactEmails(Context context) {
String emailIdOfContact = null;
int emailType = Email.TYPE_WORK;
String contactName = null;
ContentResolver cr = context.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(BaseColumns._ID));
contactName = cur
.getString(cur
.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
// Log.i(TAG,"....contact name....." +
// contactName);
cr.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID
+ " = ?", new String[] { id }, null);
Cursor emails = cr.query(Email.CONTENT_URI, null,
Email.CONTACT_ID + " = " + id, null, null);
while (emails.moveToNext()) {
emailIdOfContact = emails.getString(emails
.getColumnIndex(Email.DATA));
// Log.i(TAG,"...COntact Name ...."
// + contactName + "...contact Number..."
// + emailIdOfContact);
emailType = emails.getInt(emails
.getColumnIndex(Phone.TYPE));
}
emails.close();
}
}// end of contact name cursor
cur.close();
}

Phone Numbers
Phone numbers are stored in their own table and need to be queried separately. To query the phone number table use the URI stored in the SDK variable ContactsContract.CommonDataKinds.Phone.CONTENT_URI. Use a WHERE conditional to get the phone numbers for the specified contact.
if (Integer.parseInt(cur.getString(
cur.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER))) > 0) {
Cursor pCur = cr.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = ?",
new String[]{id}, null);
while (pCur.moveToNext()) {
// Do something with phones
}
pCur.close();
}
Perform a second query against the Android contacts SQLite database. The phone numbers are queried against the URI stored in ContactsContract.CommonDataKinds.Phone.CONTENT_URI. The contact ID is stored in the phone table as ContactsContract.CommonDataKinds.Phone.CONTACT_ID and the WHERE clause is used to limit the data returned.
Email Addresses
Querying email addresses is similar to phone numbers. A query must be performed to get email addresses from the database. Query the URI stored in ContactsContract.CommonDataKinds.Email.CONTENT_URI to query the email address table
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));
}
emailCur.close();

Uri uri = Uri.withAppendedPath(ContactsContract.Contacts.CONTENT_FILTER_URI,Uri.encode(name.toString().trim()));
Cursor mapContact = getContext().getContentResolver().query(uri, new String[]{PhoneLookup._ID}, null, null, null);
if(mapContact.moveToNext())
{
String _id = mapContact.getString(mapContact.getColumnIndex(ContactsContract.Contacts._ID));
}

Xamarin Version of Sunil's answer. Took me a while, but I figured it out.
ContentResolver cr = ContentResolver;
string contactName = null;
var cur = cr.Query(ContactsContract.Contacts.ContentUri,null,null,null,null);
if (cur.MoveToFirst())
{
do
{
string id = cur.GetString(cur.GetColumnIndex(BaseColumns.Id));
contactName = cur.GetString(cur.GetColumnIndex(ContactsContract.Contacts.InterfaceConsts.DisplayName));
var emails = cr.Query(ContactsContract.CommonDataKinds.Email.ContentUri, null, ContactsContract.CommonDataKinds.Email.InterfaceConsts.ContactId + " = " + id, null, null);
if (emails.MoveToFirst()) {
do
{
// This is where it loops through if there are multiple Email addresses
var email = emails.GetString(emails.GetColumnIndex(ContactsContract.CommonDataKinds.Email.InterfaceConsts.Data));
} while (emails.MoveToNext());
}
} while (cur.MoveToNext());
}

I am using below code. it is working fine. checked it.
ArrayList<ContactInfo> listContactsData = new ArrayList<>();
// Retrieve Email address
Cursor emailCursor = cr.query(
ContactsContract.CommonDataKinds.Email.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Email.CONTACT_ID + " = ?",
new String[]{id}, null);
while (emailCursor.moveToNext()) {
// This would allow you get email addresses
String email = emailCursor.getString(emailCursor.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA)); String emailType = emailCursor.getString(emailCursor.getColumnIndex(ContactsContract.CommonDataKinds.Email.TYPE));
Log.e(“Email :“,” ”+email)
objContact.strEmail = email;
}
emailCur.close();
listContactsData.add(objContact);

Uri contactData = data.getData();
Cursor c = getContentResolver().query(contactData, null, null, null, null);
if (c.moveToFirst()) {
String contactId = c.getString(c.getColumnIndex(ContactsContract.Contacts._ID));
String hasNumber = c.getString(c.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER));
String email= "";
if (Integer.valueOf(hasNumber) == 1) {
Cursor numbers = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = " + contactId, null, null);
while (numbers.moveToNext()) {
email= numbers.getString(numbers.getColumnIndex(ContactsContract.CommonDataKinds.Phone.CONTACT_ID));
//Toast.makeText(getApplicationContext(), "Number=" + num, Toast.LENGTH_LONG).show();
//asdasdasdsa
if(getEmail(email).isEmpty()){
Toast.makeText(this, "Email Not Found In That Contact Try Another", Toast.LENGTH_SHORT).show();
}
else {
edt_email_contact.setText("" + getEmail(email));
} }
}
}
break;
}