ContactsEngine.java

package com.ittianyu.mobileguard.engine;

import android.content.ContentResolver;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;

import com.ittianyu.mobileguard.domain.ContactBean;

import java.util.ArrayList;
import java.util.List;

/**
 * read contacts engine
 * Need request permissions if the SDK >= 23
 */
public class ContactsEngine {
    private static final String AUTHORITIES_CONTACTS = "com.android.contacts";
    private static final String AUTHORITIES_CALL_LOG = "call_log";
    private static final String AUTHORITIES_SMS = "sms";
    private static final String CONTENT = "content://";

    /**
     * read the contact list.
     * @param context
     * @return a List<ContactBean>. The result can't be null. So you just need check contacts.size()
     */
    public static List<ContactBean> readContacts(Context context) {
        List<ContactBean> contacts = new ArrayList<>();
        // get resolver
        ContentResolver resolver = context.getContentResolver();
        // query contact id
        Uri contactsUri = Uri.parse(CONTENT + AUTHORITIES_CONTACTS + "/raw_contacts");
        Cursor contactsCursor = resolver.query(contactsUri, new String[]{"contact_id"}, null, null, null);
        if (null == contactsCursor)
            return contacts;
        while (contactsCursor.moveToNext()) {
            // get value
            int contactId = contactsCursor.getInt(0);
            // new bean
            ContactBean contact = new ContactBean();
            contact.setId(contactId);
            // add to list
            contacts.add(contact);
        }
        contactsCursor.close();

        // query data: phone email and name
        for (ContactBean contact : contacts) {
            Uri dataUri = Uri.parse(CONTENT + AUTHORITIES_CONTACTS + "/data");
            Cursor dataCursor = resolver.query(dataUri, new String[]{"mimetype", "data1"},
                    "raw_contact_id=?", new String[]{contact.getId() + ""}, null);
            while (dataCursor.moveToNext()) {
                // get value
                String mimetype = dataCursor.getString(dataCursor.getColumnIndex("mimetype"));
                String data1 = dataCursor.getString(dataCursor.getColumnIndex("data1"));
//                System.out.println(mimetype);
//                System.out.println(data1);
                // set value
                if("vnd.android.cursor.item/email_v2".equals(mimetype)) {
                    contact.setEmail(data1);
                } else if("vnd.android.cursor.item/phone_v2".equals(mimetype)) {
                    contact.setPhone(data1);
                } else if("vnd.android.cursor.item/name".equals(mimetype)) {
                    contact.setName(data1);
                }
            }
            dataCursor.close();
        }
        return contacts;
    }

    /**
     * read call log contacts
     * @param context
     * @return
     */
    public static List<ContactBean> readCallLogContacts(Context context) {
        List<ContactBean> contacts = new ArrayList<ContactBean>();
        // get resolver
        ContentResolver resolver = context.getContentResolver();
        // query contact id
        Uri contactsUri = Uri.parse(CONTENT + AUTHORITIES_CALL_LOG + "/calls");
        Cursor cursor = resolver.query(contactsUri, new String[]{"_id", "number", "name"}, null, null, "date desc");
        if (null == cursor)
            return contacts;
        while (cursor.moveToNext()) {
            // get value
            int id = cursor.getInt(cursor.getColumnIndex("_id"));
            String number = cursor.getString(cursor.getColumnIndex("number"));
            String name = cursor.getString(cursor.getColumnIndex("name"));
            // new bean
            ContactBean contact = new ContactBean(id, number, null, name);
            // add
            contacts.add(contact);
        }
        cursor.close();

        return contacts;
    }

    /**
     * read sms log contacts
     * @param context
     * @return
     */
    public static List<ContactBean> readSmsContacts(Context context) {
        List<ContactBean> contacts = new ArrayList<ContactBean>();
        // get resolver
        ContentResolver resolver = context.getContentResolver();
        // query contact id
        Uri contactsUri = Uri.parse(CONTENT + AUTHORITIES_SMS);
        Cursor cursor = resolver.query(contactsUri, new String[]{"_id", "address", "person"}, null, null, "date desc");
        if (null == cursor)
            return contacts;
        while (cursor.moveToNext()) {
            // get value
            int id = cursor.getInt(cursor.getColumnIndex("_id"));
            String number = cursor.getString(cursor.getColumnIndex("address"));
            String name = cursor.getString(cursor.getColumnIndex("person"));
            // new bean
            ContactBean contact = new ContactBean(id, number, null, name);
            // add
            contacts.add(contact);
        }
        cursor.close();

        return contacts;
    }

}