通讯录工具类ContactsHelper

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

import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.database.Cursor;
import android.net.Uri;

public class ContactsHelper {
	private static String uri_rawcontacts = "content://com.android.contacts/raw_contacts";
	private static String uri_contacts_phones = "content://com.android.contacts/data/phones";
	private static String uri_contacts_emails = "content://com.android.contacts/data/emails";
	private static String uri_contacts_data = "content://com.android.contacts/data";

	// 查询联系人的信息
	public static List<Map<String, Object>> selectContactsInfo(
			ContentResolver resolver) {
		List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
		Cursor contactsCursor = resolver.query(Uri.parse(uri_rawcontacts),
				new String[] { "_id", "display_name" }, null, null, null);
		while (contactsCursor.moveToNext()) {
			Map<String, Object> map = new HashMap<String, Object>();
			int contactsId = contactsCursor.getInt(contactsCursor
					.getColumnIndex("_id"));
			String displayName = contactsCursor.getString(contactsCursor
					.getColumnIndex("display_name"));
			map.put("_id", contactsId);
			map.put("display_name", displayName);

			// 根据联系人的id去data表获取电话号码的信息
			Cursor phoneCursor = resolver.query(Uri.parse(uri_contacts_phones),
					new String[] { "raw_contact_id", "data1" },
					"raw_contact_id=?", new String[] { contactsId + "" }, null);

			StringBuilder sb = new StringBuilder();
			while (phoneCursor.moveToNext()) {
				sb.append(phoneCursor.getString(1));
				sb.append("|");
			}
			map.put("phones", sb.toString());

			// 根据联系人的id去data表获取email的信息
			Cursor emailCursor = resolver.query(Uri.parse(uri_contacts_emails),
					new String[] { "raw_contact_id", "data1" },
					"raw_contact_id=?", new String[] { contactsId + "" }, null);

			StringBuilder sb2 = new StringBuilder();
			while (emailCursor.moveToNext()) {
				sb2.append(emailCursor.getString(1));
				sb2.append("|");
			}
			map.put("emails", sb2.toString());

			list.add(map);
		}
		return list;
	}

	// 修改联系人的姓名
	public static boolean updateContactsName(ContentResolver resolver,
			Map<String, Object> map, String id) {
		ContentValues values = new ContentValues();
		// 更改raw_contacts表中的姓名
		values.put("display_name", map.get("display_name").toString());
		values.put("display_name_alt", map.get("display_name").toString());
		values.put("sort_key", map.get("display_name").toString());
		values.put("sort_key_alt", map.get("display_name").toString());
		int result1 = resolver.update(Uri.parse(uri_rawcontacts), values,
				"_id=?", new String[] { id });
		// 更改data表中的姓名
		values.clear();
		values.put("data1", map.get("display_name").toString());
		values.put("data2", map.get("display_name").toString());
		int result2 = resolver.update(Uri.parse(uri_contacts_data), values,
				"raw_contact_id=? and mimetype_id=?", new String[] { id, "7" });
		// 更改data表中的phone
		values.clear();
		values.put("data1", map.get("phones").toString());
		values.put("data2", 2);
		int result3 = resolver.update(Uri.parse(uri_contacts_data), values,
				"raw_contact_id=? and mimetype_id=?", new String[] { id, "5" });
		// 更改data表中的phone
		values.clear();
		values.put("data1", map.get("emails").toString());
		values.put("data2", 1);
		int result4 = resolver.update(Uri.parse(uri_contacts_data), values,
				"raw_contact_id=? and mimetype_id=?", new String[] { id, "1" });

		// 更改data表中的email
		if (result1 > 0 && result2 > 0 && result3 > 0 && result4 > 0) {
			return true;
		} else {
			return false;
		}
	}

	// 删除联系人信息
	public static boolean deleteContactByName(ContentResolver resolver,
			String displayName) {
		int data = resolver.delete(Uri.parse(uri_rawcontacts),
				"display_name=?", new String[] { displayName });
		if (data > 0) {
			return true;
		}
		return false;
	}

	// 删除联系人信息
	public static boolean deleteContactById(ContentResolver resolver, String id) {
		int data = resolver.delete(Uri.parse(uri_rawcontacts), "_id=?",
				new String[] { id });
		if (data > 0) {
			return true;
		}
		return false;
	}

	// 新增数据
	public static void insertContact(ContentResolver resolver,
			Map<String, Object> map) {
		ContentValues values = new ContentValues();
		// 往raw_contacts表中插入一条空数据，目的是获取联系人的id
		Uri newUri = resolver.insert(Uri.parse(uri_rawcontacts), values);
		long id = ContentUris.parseId(newUri);

		// 往data表中插入联系人姓名的数据
		values.put("raw_contact_id", id);
		values.put("mimetype", "vnd.android.cursor.item/name");
		values.put("data1", map.get("display_name").toString());
		values.put("data2", map.get("display_name").toString());
		resolver.insert(Uri.parse(uri_contacts_data), values);

		// 往data表中插入联系人的电话信息
		values.clear();
		values.put("raw_contact_id", id);
		values.put("mimetype", "vnd.android.cursor.item/phone_v2");
		values.put("data1", map.get("phones").toString());
		values.put("data2", 2);
		resolver.insert(Uri.parse(uri_contacts_data), values);

		// 往data表中插入联系人的email
		values.clear();
		values.put("raw_contact_id", id);
		values.put("mimetype", "vnd.android.cursor.item/email_v2");
		values.put("data1", map.get("emails").toString());
		values.put("data2", 1);
		resolver.insert(Uri.parse(uri_contacts_data), values);

	}

}