獲取手機聯絡人資訊步驟：
1、獲取 ContentResolver
ContentResolver resolver = getContentResolver();
2、resolver.query(*)查詢資訊
查詢手機聯絡人的URI：ContactsContract.RawContacts.CONTENT_URI
查詢手機聯絡人手機號的URI：ContactsContract.CommonDataKinds.Phone.CONTENT_URI
查詢聯絡人郵箱的URI：ContactsContract.CommonDataKinds.Email.CONTENT_URI

主要程式碼如下：

MainActivity.java

package com.noonecode.contentresolvercontacts;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import android.app.Activity;
import android.content.ContentResolver;
import
 
 android.database.Cursor;
import android.os.Bundle;
import android.provider.ContactsContract.CommonDataKinds.Email;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.provider.ContactsContract.RawContacts;
import android.widget.ListView;
import android.widget.SimpleAdapter;

public
 
 class MainActivity extends Activity {

    private ListView mLvShow;
    private List<Map<String, String>> dataList;
    private SimpleAdapter adapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mLvShow = (ListView) findViewById(R.id.lv_show);
        dataList = getDataList();
        adapter = new SimpleAdapter(this, dataList, R.layout.simple_contacts_item//
                , new String[] { "name", "number", "email" }//
                , new int[] { R.id.tv_name, R.id.tv_number, R.id.tv_email });
        mLvShow.setAdapter(adapter);
    }

    /**
     * 載入資料
     * 
     * @return
     */
    private List<Map<String, String>> getDataList() {
        List<Map<String, String>> list = new ArrayList<Map<String, String>>();
        ContentResolver resolver = getContentResolver();
        Cursor cursor = resolver.query(RawContacts.CONTENT_URI,
                new String[] { RawContacts._ID, RawContacts.DISPLAY_NAME_PRIMARY }//
                , null, null, null);
        while (cursor.moveToNext()) {
            Map<String, String> map = new HashMap<String, String>();
            String id = cursor.getString(cursor.getColumnIndex(RawContacts._ID));// "_id"
            String name = cursor.getString(cursor.getColumnIndex(RawContacts.DISPLAY_NAME_PRIMARY));// "display_name"
            map.put("name", name);

            // 聯絡人號碼
            Cursor phoneCursor = resolver.query(Phone.CONTENT_URI//
                    , new String[] { Phone.NUMBER }// "data1"
                    , "raw_contact_id=?", new String[] { id }, null);
            if (phoneCursor.moveToNext()) {
                String number = phoneCursor.getString(phoneCursor.getColumnIndex(Phone.NUMBER));
                map.put("number", number);
            }

            // 聯絡人郵箱
            Cursor emailCursor = resolver.query(Email.CONTENT_URI//
                    , new String[] { Email.ADDRESS}// "data1"
                    , "raw_contact_id=?", new String[] { id }, null);
            if (emailCursor.moveToNext()) {
                String email = emailCursor.getString(emailCursor.getColumnIndex(Email.ADDRESS));
                map.put("email", email);
            }
            list.add(map);
        }
        return list;
    }
}

主佈局activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.noonecode.contentresolvercontacts.MainActivity" >

    <ListView
        android:id="@+id/lv_show"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</RelativeLayout>

simple_contacts_item.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="10dp" >

    <TextView
        android:id="@+id/tv_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="name"
        android:textSize="22sp" />

    <TextView
        android:id="@+id/tv_number"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/tv_name"
        android:text="number" />

    <TextView
        android:id="@+id/tv_email"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/tv_name"
        android:layout_marginLeft="10dp"
        android:layout_toRightOf="@id/tv_number"
        android:text="email" />

</RelativeLayout>

讀取聯絡人的許可權：

<uses-permission android:name="android.permission.READ_CONTACTS"/>

最終效果圖：

注意：

1. 注意檢查是否賦予了應用讀取聯絡人的許可權；
2. 本例在主執行緒中讀取聯絡人資訊，效率不高，如有效率要求，請自行尋找其他方法。