ContactUtils.java

import android.app.Activity;
import android.content.ContentResolver;
import android.database.Cursor;
import android.net.Uri;
import android.provider.ContactsContract;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;



import java.util.ArrayList;

public class ContactUtils {
    private static ContactUtils instance;

    public static ContactUtils getInstance() {
        if (instance == null)
            instance = new ContactUtils();

        return instance;
    }

    public ArrayList<ContactModel> getWhatsappContacts(Activity activity) {
        ArrayList<ContactModel> contactList = new ArrayList<>();

        //This class provides applications access to the content model.
        ContentResolver cr = activity.getContentResolver();

        Uri uriRawContacts = ContactsContract.RawContacts.CONTENT_URI;
        String[] projectionRawContacts = new String[]{ContactsContract.RawContacts._ID, ContactsContract.RawContacts.CONTACT_ID};
        String selectionRawContacts = ContactsContract.RawContacts.ACCOUNT_TYPE + "= ?";
        String[] selectionArgsRawContacts = new String[]{"com.whatsapp"};
        //RowContacts for filter Account Types
        Cursor contactCursor = cr.query(
                uriRawContacts,
                projectionRawContacts,
                selectionRawContacts,
                selectionArgsRawContacts,
                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

                            Uri uriPhone = ContactsContract.CommonDataKinds.Phone.CONTENT_URI;
                            String[] projectionPhone = new String[]{ContactsContract.CommonDataKinds.Phone.CONTACT_ID, ContactsContract.CommonDataKinds.Phone.NUMBER, ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME};
                            String selectionPhone = ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?";
                            String[] selectionArgsPhone = new String[]{whatsappContactId};
                            Cursor whatsAppContactCursor = cr.query(
                                    uriPhone,
                                    projectionPhone,
                                    selectionPhone,
                                    selectionArgsPhone,
                                    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));

                                whatsAppContactCursor.close();

                                //Add Number to ArrayList
                                //initialize contact model
                                ContactModel model = new ContactModel();

                                model.setName(name);
                                model.setPhone(number);
                                //add model to array
                                contactList.add(model);
                            }
                        }
                    } while (contactCursor.moveToNext());

                    contactCursor.close();
                }
            }
        }

        return contactList;
    }

    public ArrayList<ContactModel> getAllContacts(Activity activity) {
        ArrayList<ContactModel> contactList = new ArrayList<>();

        Uri uriContacts = ContactsContract.Contacts.CONTENT_URI;
        String sort = ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME + " ASC";

        Cursor cursor = activity.getContentResolver().query(uriContacts,
                null,
                null,
                null,
                sort);

        if (cursor.getCount() > 0) {
            while (cursor.moveToNext()) {
                //get contact id
                String id = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
                //get contact name
                String name = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
                //initialize phone uri
                Uri uriPhone = ContactsContract.CommonDataKinds.Phone.CONTENT_URI;
                //initialize selection
                String selection = ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " =?";
                //initialize phone cursor
                Cursor phoneCursor = activity.getContentResolver().query(
                        uriPhone,
                        null,
                        selection,
                        new String[]{id},
                        null);

                //check
                if (phoneCursor.moveToNext()) {
                    String number = phoneCursor.getString(phoneCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
                    String accountType = phoneCursor.getString(phoneCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.ACCOUNT_TYPE_AND_DATA_SET));

                    //initialize contact model
                    ContactModel model = new ContactModel();

                    model.setName(name);
                    model.setPhone(number);
                    model.setAccountType(accountType);
                    //add model to array
                    contactList.add(model);
                    //close phone cursor
                    phoneCursor.close();
                }
            }
            //close cursor
            cursor.close();
        }

        return contactList;
    }

    public void getAllContacts(Activity activity, ListView listView) {
        ArrayList<ContactModel> arrayList = new ArrayList<>();

        Cursor cursor = activity.getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, null);
        activity.startManagingCursor(cursor);

        String[] from = {ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME,
                ContactsContract.CommonDataKinds.Phone.NUMBER,
                ContactsContract.CommonDataKinds.Phone._ID
        };
        int[] to = {android.R.id.text1, android.R.id.text2};

        SimpleCursorAdapter simpleCursorAdapter = new SimpleCursorAdapter(activity, android.R.layout.simple_list_item_2, cursor, from, to);

        listView.setAdapter(simpleCursorAdapter);
        listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);

    }
  
  
public class ContactModel implements Serializable {
    private String name;
    private String phone;
    private String accountType;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone;
    }

    public String getAccountType() {
        return accountType;
    }

    public void setAccountType(String accountType) {
        this.accountType = accountType;
    }
}
}