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@ -1,74 +1,79 @@
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/*
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* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
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* 版权所有(c)2010-2011年,The MiCode开源社区(www.micode.net)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* 根据Apache许可证2.0版(“许可证”)获得许可;
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* 除非符合许可证的规定,否则您不得使用此文件。
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* 您可以在以下网址获取许可证副本:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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* 除非适用法律要求或书面同意,软件
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* 分发根据“原样”分发,
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* 没有任何明示或暗示的保证或条件。
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* 有关许可证下的特定语言的管理权限,请参见许可证。
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*/
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package net.micode.notes.data; // 定义包名
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package net.micode.notes.data;
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import android.content.Context; // 导入Context类,用于访问应用程序环境
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import android.database.Cursor; // 导入Cursor类,用于数据库查询结果的操作
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import android.provider.ContactsContract.CommonDataKinds.Phone; // 导入电话相关的常量
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import android.provider.ContactsContract.Data; // 导入数据相关的常量
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import android.telephony.PhoneNumberUtils; // 导入电话号工具类
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import android.util.Log; // 导入日志工具类
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import android.content.Context;
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import android.database.Cursor;
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import android.provider.ContactsContract.CommonDataKinds.Phone;
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import android.provider.ContactsContract.Data;
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import android.telephony.PhoneNumberUtils;
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import android.util.Log;
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import java.util.HashMap; // 导入HashMap类,用于存储联系人缓存
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import java.util.HashMap;
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public class Contact { // 定义Contact类
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private static HashMap<String, String> sContactCache; //静态哈希表,用于缓存联系人信息
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private static final String TAG = "Contact"; // 日志标签
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public class Contact {
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private static HashMap<String, String> sContactCache;
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private static final String TAG = "Contact";
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private static final String CALLER_ID_SELECTION = "PHONE_NUMBERS_EQUAL(" + Phone.NUMBER
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+ ",?) AND " + Data.MIMETYPE + "='" + Phone.CONTENT_ITEM_TYPE + "'"
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+ " AND " + Data.RAW_CONTACT_ID + " IN "
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+ ",?) AND " + Data.MIMETYPE + "='" + Phone.CONTENT_ITEM_TYPE + "'"
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+ " AND " + Data.RAW_CONTACT_ID + " IN "
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+ "(SELECT raw_contact_id "
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+ " FROM phone_lookup"
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+ " WHERE min_match = '+')"; // 查询条件,用于匹配来电号码
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+ " WHERE min_match = '+')";
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public static String getContact(Context context, String phoneNumber) { // 获取联系人信息的方法
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if(sContactCache == null) { // 检查缓存是否为空
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sContactCache = new HashMap<String, String>(); // 初始化联系人缓存
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/**
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* 获取电话号码对应的联系人姓名
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*
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* @param context 上下文
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* @param phoneNumber 电话号码
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* @return 联系人姓名,如果未找到匹配的联系人,则返回null
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*/
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public static String getContact(Context context, String phoneNumber) {
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if(sContactCache == null) {
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sContactCache = new HashMap<String, String>();
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}
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if(sContactCache.containsKey(phoneNumber)) { // 如果缓存中存在该电话号码
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return sContactCache.get(phoneNumber); // 直接返回缓存中的联系人名称
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if(sContactCache.containsKey(phoneNumber)) {
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return sContactCache.get(phoneNumber);
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}
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String selection = CALLER_ID_SELECTION.replace("+",
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PhoneNumberUtils.toCallerIDMinMatch(phoneNumber)); // 替换查询条件中的占位符
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Cursor cursor = context.getContentResolver().query( // 执行查询
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PhoneNumberUtils.toCallerIDMinMatch(phoneNumber));
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Cursor cursor = context.getContentResolver().query(
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Data.CONTENT_URI,
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new String [] { Phone.DISPLAY_NAME }, // 查询返回的字段为联系人显示名称
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selection, // 查询条件
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new String[] { phoneNumber }, // 查询参数
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null); // 排序方式
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new String [] { Phone.DISPLAY_NAME },
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selection,
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new String[] { phoneNumber },
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null);
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if (cursor != null && cursor.moveToFirst()) { // 如果查询结果不为空且移动到第一条记录
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if (cursor != null && cursor.moveToFirst()) {
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try {
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String name = cursor.getString(0); // 获取联系人名称
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sContactCache.put(phoneNumber, name); // 将联系人名称存入缓存
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return name; // 返回联系人名称
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} catch (IndexOutOfBoundsException e) { // 捕获索引越界异常
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Log.e(TAG, " Cursor get string error " + e.toString()); // 记录错误日志
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return null; // 返回空
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String name = cursor.getString(0);
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sContactCache.put(phoneNumber, name);
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return name;
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} catch (IndexOutOfBoundsException e) {
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Log.e(TAG, " Cursor get string error " + e.toString());
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return null;
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} finally {
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cursor.close(); // 关闭游标
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cursor.close();
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}
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} else {
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Log.d(TAG, "No contact matched with number:" + phoneNumber); // 记录未找到联系人的日志
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return null; // 返回空
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Log.d(TAG, "No contact matched with number:" + phoneNumber);
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return null;
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}
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}
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}
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}
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