Develop Reference

Unable to load contacts

I have Tried number of available examples which helps to load contacts from phone. It works fine on emulator but when i try on real time mobile then it crashes. Can any one send me tested piece of code which is working flawless. then i can compare with my code.
one failed code example.
Cursor phones = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,null,null, null);
if (phones.getCount() > 0)
{
while (phones.moveToNext())
{
name=phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
phoneNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
}
phones.close();
Kindly help.

Be sure that phones is not null. If not null add this row to move pointer to 1st phone:
cursor.moveToFirst();
Here is snippets of code as example how it should work:
Uri contactData = data.getData();
//Cursor cursor = managedQuery(contactData, null, null, null, null);
Cursor cursor = cr.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));
if (Integer.parseInt(cursor.getString(
cursor.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 number = pCur.getString(pCur.getColumnIndexOrThrow(ContactsContract.CommonDataKinds.Phone.NUMBER));
break; // ? we want only 1 value
}
pCur.close();
}
cursor.close();
Suppose it will help you

First,add this in manifest file:
<uses-permission android:name="android.permission.READ_CONTACTS"/>
to your AndroidManifest.xml file, then you can loop through your phone contacts like this:
Cursor cursor = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI,null, null, null, null);
while (cursor.moveToNext()) {
String contactId = cursor.getString(cursor.getColumnIndex(
ContactsContract.Contacts._ID));
String hasPhone = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER));
if (Boolean.parseBoolean(hasPhone)) {
// You know it has a number so now query it like this
Cursor phones = getContentResolver().query( ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = "+ contactId, null, null);
while (phones.moveToNext()) {
String phoneNumber = phones.getString(phones.getColumnIndex( ContactsContract.CommonDataKinds.Phone.NUMBER));
}
phones.close();
}
Cursor emails = getContentResolver().query(ContactsContract.CommonDataKinds.Email.CONTENT_URI, null, ContactsContract.CommonDataKinds.Email.CONTACT_ID + " = " + contactId, null, null);
while (emails.moveToNext()) {
// This would allow you get several email addresses
String emailAddress = emails.getString(
emails.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA));
}
emails.close();
}
cursor.close();

context.getContentResolver().query(ContactsContract.Data.CONTENT_URI, null , null ,null, null);

Hi I am working in Android Contact search module.I am running below Query.
cur = context.getContentResolver().query(ContactsContract.Data.CONTENT_URI, null , null ,null, null);
from this query I am getting Result Multiple times.Is there any thing which I am doing wrong.I want DISTINCT Result Set.
please help me.

I think you mean you got duplicate record for some contacts. So you must add condition for your query
String selection = ContactsContract.Contacts.IN_VISIBLE_GROUP + " = '"
+ ("1") + "'";
String sortOrder = ContactsContract.Contacts.DISPLAY_NAME
+ " COLLATE LOCALIZED ASC";
cur = context.getContentResolver().query(
ContactsContract.Contacts.CONTENT_URI, projection, selection
+ " AND " + ContactsContract.Contacts.HAS_PHONE_NUMBER
+ "=1", null, sortOrder);// this query only return contacts which had phone number and not duplicated

Try this code will help you
public void getContact() {
Cursor cur = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
ContentResolver contect_resolver = getContentResolver();
int size = cur.getCount();
if (size > 0 && cur != null) {
for (int i = 0; i < size; i++) {
cur.moveToPosition(i);
String id = cur.getString(cur.getColumnIndexOrThrow(ContactsContract.Contacts._ID));
String name = "";
Cursor phoneCur = contect_resolver.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID
+ " = ?", new String[] { id }, null);
if (phoneCur.moveToFirst()) {
name = phoneCur.getString(phoneCur .getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
if (!name.equalsIgnoreCase("")) {
String id1 = phoneCur.getString(phoneCur
.getColumnIndex(ContactsContract.CommonDataKinds.Phone.CONTACT_ID));
Cursor emails = getContentResolver()
.query(ContactsContract.CommonDataKinds.Email.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Email.CONTACT_ID
+ " = " + Integer.parseInt(id1),
null, null);
emailAddress="";
if (emails!=null && emails.getCount() > 0) {
emails.moveToFirst();
emailAddress = emails
.getString(emails
.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DATA));
}
emails.close();
contact.setEmail(emailAddress);
id1 = "";
mcontact_arraylist.add(contact);
}
phoneCur.close();
}
}
cur.close();
}
}

Each record should contain a portion of the data for a contact (eg each phone number or address is a separate row) each row has a mimetype associated with it that is used to determine the data stored in each column. So for an address, the "data1" column holds the street data and data4 might hold the state.

Reading a specific contact from its ID on android database

I need to set the cursor to a specific contact that i have its id
Cursor cur = cr.query(ContactsContract.Contacts.CONTENT_URI,
null,null, null, null);
I have that code for all the database, how can I optimize it?
I need the cursor to return the name and the default number of the contact
thank you

You actually need two cursors. One for name & id and another one for phone number.
Cursor c = managedQuery(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
if (c.moveToFirst()) {
name = c.getString(c.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
fullName = c.getString(c.getColumnIndex("display_name_alt"));
id = c.getString(c.getColumnIndex(ContactsContract.Contacts._ID));
if (Integer.parseInt(c.getString(c.getColumnIndex
(ContactsContract.Contacts.HAS_PHONE_NUMBER))) > 0) {
//phone number
Cursor phones = getContentResolver().query(Phone.CONTENT_URI,
null,
Phone.CONTACT_ID + " = " + id,
null,
null);
while (phones.moveToNext()) {
String number_type = phones.getString(phones.getColumnIndex
(ContactsContract.CommonDataKinds.Phone.TYPE));
if(number_type.equalsIgnoreCase("1"))
number1 = phones.getString(phones.getColumnIndex
(ContactsContract.CommonDataKinds.Phone.NUMBER));
if(number_type.equalsIgnoreCase("2"))
number2 = phones.getString(phones.getColumnIndex
(ContactsContract.CommonDataKinds.Phone.NUMBER));
}
phones.close();
}
}
c.close();

cursor = getContentResolver().query(Phone.CONTENT_URI,
null, Phone.CONTACT_ID + "=?", new String[] { id },
Phone.DISPLAY_NAME + " ASC");

How can i know that a contact has number or not in android?

How to know a contact have phone no or not?
Below is my code which gives me all contact name but some name dotn't have numbers so iwant know how can solve this situation...
Cursor cursor = getContentResolver().query(
ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
while (cursor.moveToNext()) {
String contactId = cursor.getString(cursor
.getColumnIndex(ContactsContract.Contacts._ID));
contactName = cursor.getString(cursor
.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
System.out.println("Id= " + contactId);
System.out.println("NAme= " + contactName);
nameArray.add(contactName);
Cursor phones = getContentResolver().query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = "
+ contactId, null, null);
while (phones.moveToNext()) {
phoneNumber = phones
.getString(phones
.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
System.out.println("Phone no =" + phoneNumber);
contactsArray.add(phoneNumber);
}
phones.close();
}
cursor.close();

Have you considered filtering on ContactsColumns.HAS_PHONE_NUMBER - if the value of this column is "1" the aggregated contact should have one or more phone numbers.

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;
}