Android学习笔记--基于XMPP的即时通讯

一、常见即时通讯实现

socket

openfire+asmack

环信

信鸽

融云

二、XMPP优势

1. 开放性

XMPP协议是自由、开放、公开的，并且易于了解。而且在客户端、服务器、组件、源码库等方面，都已经各自有多种实现。

2.跨平台

客户端只要基于XMPP协议，不管是什么平台（包括不同的移动终端）都可以互联互通。

三、XMPP协议简介  

The Extensible Messaging and Presence Protocol (可扩展通讯和表示协议) XMPP 以 Jabber 协议为基础，而 Jabber 是即时通讯中常用的开放式协议。

数据格式

XML是XMPP系统架构的核心。它能表述几乎任何一种结构化数据。特别是XMPP利用XML数据流进行客户端一服务器端、服务器端一服务器端的通信。XML数据流一般是由客户端发起至服务端，XML数据流的有效时间直接与用户的在线会话有效时间相关联。

XMPP 的特点是将复杂性从客户端转移到服务器端。这使得客户端编写变得非常容易，更新系统功能也同样变得容易。

XMPP中定义了三个角色：XMPP客户端、XMPP服务器、网关。

客户端：通过 TCP 套接字与XMPP 服务器进行通信

服务器：同时承担了客户端信息记录、连接管理和信息的路由功能

网关：承担着与异构即时通信系统的互联互通（异构系统可以包括SMS（短信），MSN，ICQ等）

五、XMPP协议的地址格式（标志）

每个客户端需要拥有一个地址标识用于定位，XMPP 中称之为 JID (Jabber ID)。地址标识的格式如下

[ node "@" ] domain [ "/" resource ]

例如：

charley@gmail.com/spark

格式与 Email 地址格式类似，但增添了 resource 项（非必需的）。上述例子可以解释为：在 gmail.com 服务器注册的 charley用户，且使用 spark客户端软件登录。资源（resource ）只用来识别属于用户的位置或设备等，一个用户可以同时以多种资源与同一个XMPP服务器连接（说白了就是用于支持同一账号的多客户端登录）。

六、协议消息格式

XMPP协议包括3个顶层XML元素：Message、Presence和IQ。

Message用来表示传输的消息，当用户发送一条消息时。就会在流的上下文中插入一个Message元素，中间有用户发送的相关信息；

Presence用来表示用户的状态。当用户改变自己的状态时。就会在数据流的上下文中插入一个Presence元素，用来表示用户现在的状态；

IQ用来表示一种请求，响应机制，从一个实体发送请求，另外一个实体接受请求并响应。

XMPP特点

1.客户端通过TCP/IP协议连接到服务器，然后通过XML传输数据。

2.XMPP的核心部分就是一个在网络上分片断发送XML的流协议。这个流协议是XMPP的即时通讯指令的传递基础，也是一个非常重要的可以被进一步利用的网络基础协议。所以可以说，XMPP用TCP传的是XML流。

理论一大堆。。。。接下来贴代码

XmppManager.java

package com.example.xmppdemo.fengzhuang;

import android.util.Log;



import org.jivesoftware.smack.Chat;
import org.jivesoftware.smack.ChatManager;
import org.jivesoftware.smack.ChatManagerListener;
import org.jivesoftware.smack.ConnectionConfiguration;
import org.jivesoftware.smack.MessageListener;
import org.jivesoftware.smack.PacketCollector;
import org.jivesoftware.smack.Roster;
import org.jivesoftware.smack.RosterEntry;
import org.jivesoftware.smack.SmackConfiguration;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.filter.AndFilter;
import org.jivesoftware.smack.filter.PacketFilter;
import org.jivesoftware.smack.filter.PacketIDFilter;
import org.jivesoftware.smack.filter.PacketTypeFilter;
import org.jivesoftware.smack.packet.IQ;
import org.jivesoftware.smack.packet.Message;
import org.jivesoftware.smack.packet.Presence;
import org.jivesoftware.smack.packet.Registration;
import org.jivesoftware.smack.provider.PrivacyProvider;
import org.jivesoftware.smack.provider.ProviderManager;
import org.jivesoftware.smackx.Form;
import org.jivesoftware.smackx.GroupChatInvitation;
import org.jivesoftware.smackx.PrivateDataManager;
import org.jivesoftware.smackx.ReportedData;
import org.jivesoftware.smackx.bytestreams.socks5.provider.BytestreamsProvider;
import org.jivesoftware.smackx.packet.ChatStateExtension;
import org.jivesoftware.smackx.packet.LastActivity;
import org.jivesoftware.smackx.packet.OfflineMessageInfo;
import org.jivesoftware.smackx.packet.OfflineMessageRequest;
import org.jivesoftware.smackx.packet.SharedGroupsInfo;
import org.jivesoftware.smackx.packet.VCard;
import org.jivesoftware.smackx.provider.AdHocCommandDataProvider;
import org.jivesoftware.smackx.provider.DataFormProvider;
import org.jivesoftware.smackx.provider.DelayInformationProvider;
import org.jivesoftware.smackx.provider.DiscoverInfoProvider;
import org.jivesoftware.smackx.provider.DiscoverItemsProvider;
import org.jivesoftware.smackx.provider.MUCAdminProvider;
import org.jivesoftware.smackx.provider.MUCOwnerProvider;
import org.jivesoftware.smackx.provider.MUCUserProvider;
import org.jivesoftware.smackx.provider.MessageEventProvider;
import org.jivesoftware.smackx.provider.MultipleAddressesProvider;
import org.jivesoftware.smackx.provider.RosterExchangeProvider;
import org.jivesoftware.smackx.provider.StreamInitiationProvider;
import org.jivesoftware.smackx.provider.VCardProvider;
import org.jivesoftware.smackx.provider.XHTMLExtensionProvider;
import org.jivesoftware.smackx.search.UserSearch;
import org.jivesoftware.smackx.search.UserSearchManager;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;

/**
 * Created by Kelvin on 2016/12/12.
 */

public class XmppManager {

    private static XmppManager xmppManager; //XmppManager的实例

    private XmppManager(){} //私有化构造器

    public static XmppManager getInstance(){
        if (xmppManager == null){
            synchronized (XmppManager.class){
                if (xmppManager == null){
                    xmppManager = new XmppManager();
                }
            }
        }
        return xmppManager;
    }

    //XmppConnection 连接对象
    private XMPPConnection xmppConnection;

    //将其翻译成中文为"花名册"，用来表示一个用户的所有好友清单以及申请加好友的用户清单，
    // 为了便于管理，Roster中的用户分组进行管理。
    private Roster roster;

    //用于接收消息的接口
    private XmppManagerCallback xmppManagerCallback;

    //Debug标签
    private final String TAG="XmppManager";

    /**
     * 打开网络连接
     */
    private void openConnection(){

        //连接对象为空或者还没有认证的时候(isAuthenticated()方法返回值是boolean类型,意思是是否认证)
        if (xmppConnection == null || !xmppConnection.isAuthenticated()){
            try {
                //配置连接,(参数一:服务器ip地址,参数二:端口号,参数三:服务器名字)
                ConnectionConfiguration configuration = new ConnectionConfiguration(Constant.SERVER_HOST,
                        Constant.SERVER_PORT,Constant.SERVER_NAME);

                //Xmpp是否可以自动重连(客户端掉线时是否可以重新连接)
                configuration.setReconnectionAllowed(true);

                //设置安全模式
                configuration.setSecurityMode(ConnectionConfiguration.SecurityMode.disabled);
                //特别补充，在设置configuaration的时候对认证的设置，代码如下：
                //这个属性默认值是true，设置时得需要与服务器那边统一，如果不一致，就算用户注册成功后，
                // 登录时也会返回 server-unavailable(503)错误，我们用的是ejabberd服务器，默认设置SASL认证开启，
                // 所以开始我设置为false，怎么都无法登录，最后注释这句代码，成功登录：）
                //相当于一个权限
                configuration.setSASLAuthenticationEnabled(false);
                // 状态设为离线，为了取离线消息
                configuration.setSendPresence(true);
                // 配置各种Provider，如果不配置，则会无法解析数据
                configureConnection(ProviderManager.getInstance());
                xmppConnection = new XMPPConnection(configuration);
                //打开连接
                xmppConnection.connect();
            } catch (XMPPException e) {
                e.printStackTrace();
            }
        }
    }

    /**
     * 配置连接
     * @param pm
     */
    public void configureConnection(ProviderManager pm) {
        // Private Data Storage
        pm.addIQProvider("query", "jabber:iq:private", new PrivateDataManager.PrivateDataIQProvider());
        // Time
        try {
            pm.addIQProvider("query", "jabber:iq:time", Class.forName("org.jivesoftware.smackx.packet.Time"));
        } catch (ClassNotFoundException e) {
            Log.w("TestClient", "Can't load class for org.jivesoftware.smackx.packet.Time");
        }

        // Roster Exchange
        pm.addExtensionProvider("x", "jabber:x:roster", new RosterExchangeProvider());
        // Message Events
        pm.addExtensionProvider("x", "jabber:x:event", new MessageEventProvider());
        // Chat State
        pm.addExtensionProvider("active", "http://jabber.org/protocol/chatstates", new ChatStateExtension.Provider());
        pm.addExtensionProvider("composing", "http://jabber.org/protocol/chatstates", new ChatStateExtension.Provider());
        pm.addExtensionProvider("paused", "http://jabber.org/protocol/chatstates", new ChatStateExtension.Provider());
        pm.addExtensionProvider("inactive", "http://jabber.org/protocol/chatstates", new ChatStateExtension.Provider());
        pm.addExtensionProvider("gone", "http://jabber.org/protocol/chatstates", new ChatStateExtension.Provider());
        // XHTML
        pm.addExtensionProvider("html", "http://jabber.org/protocol/xhtml-im", new XHTMLExtensionProvider());
        // Group Chat Invitations
        pm.addExtensionProvider("x", "jabber:x:conference", new GroupChatInvitation.Provider());
        // Service Discovery # Items
        pm.addIQProvider("query", "http://jabber.org/protocol/disco#items", new DiscoverItemsProvider());
        // Service Discovery # Info
        pm.addIQProvider("query", "http://jabber.org/protocol/disco#info", new DiscoverInfoProvider());
        // Data Forms
        pm.addExtensionProvider("x", "jabber:x:data", new DataFormProvider());
        // MUC User
        pm.addExtensionProvider("x", "http://jabber.org/protocol/muc#user", new MUCUserProvider());
        // MUC Admin
        pm.addIQProvider("query", "http://jabber.org/protocol/muc#admin", new MUCAdminProvider());
        // MUC Owner
        pm.addIQProvider("query", "http://jabber.org/protocol/muc#owner", new MUCOwnerProvider());
        // Delayed Delivery
        pm.addExtensionProvider("x", "jabber:x:delay", new DelayInformationProvider());
        // Version
        try {
            pm.addIQProvider("query", "jabber:iq:version", Class.forName("org.jivesoftware.smackx.packet.Version"));
        } catch (ClassNotFoundException e) {
            // Not sure what's happening here.
        }
        // VCard
        pm.addIQProvider("vCard", "vcard-temp", new VCardProvider());
        // Offline Message Requests
        pm.addIQProvider("offline", "http://jabber.org/protocol/offline", new OfflineMessageRequest.Provider());
        // Offline Message Indicator
        pm.addExtensionProvider("offline", "http://jabber.org/protocol/offline", new OfflineMessageInfo.Provider());
        // Last Activity
        pm.addIQProvider("query", "jabber:iq:last", new LastActivity.Provider());
        // User Search
        pm.addIQProvider("query", "jabber:iq:search", new UserSearch.Provider());
        // SharedGroupsInfo
        pm.addIQProvider("sharedgroup", "http://www.jivesoftware.org/protocol/sharedgroup",
                new SharedGroupsInfo.Provider());
        // JEP-33: Extended Stanza Addressing
        pm.addExtensionProvider("addresses", "http://jabber.org/protocol/address", new MultipleAddressesProvider());
        // FileTransfer
        pm.addIQProvider("si", "http://jabber.org/protocol/si", new StreamInitiationProvider());
        pm.addIQProvider("query", "http://jabber.org/protocol/bytestreams", new BytestreamsProvider());
        // Privacy
        pm.addIQProvider("query", "jabber:iq:privacy", new PrivacyProvider());
        pm.addIQProvider("command", "http://jabber.org/protocol/commands", new AdHocCommandDataProvider());
        pm.addExtensionProvider("malformed-action", "http://jabber.org/protocol/commands",
                new AdHocCommandDataProvider.MalformedActionError());
        pm.addExtensionProvider("bad-locale", "http://jabber.org/protocol/commands",
                new AdHocCommandDataProvider.BadLocaleError());
        pm.addExtensionProvider("bad-payload", "http://jabber.org/protocol/commands",
                new AdHocCommandDataProvider.BadPayloadError());
        pm.addExtensionProvider("bad-sessionid", "http://jabber.org/protocol/commands",
                new AdHocCommandDataProvider.BadSessionIDError());
        pm.addExtensionProvider("session-expired", "http://jabber.org/protocol/commands",
                new AdHocCommandDataProvider.SessionExpiredError());
    }

    /**
     * 获取链接
     * @return
     */
    public XMPPConnection getConnection(){
        if (xmppConnection == null){
            openConnection();
        }
        return  xmppConnection;
    }

    /**
     * 关闭链接
     */
    public void colseConnection(){
        if (xmppConnection != null && xmppConnection.isConnected()){
            xmppConnection.disconnect();
            xmppConnection = null;
        }
    }

    /**
     * 登陆的方法
     * @param account  账号
     * @param psw  密码
     * @return
     */
    public boolean login(String account,String psw){

        //判断连接是否存在
        if (getConnection() == null){
            return false;
        }

        if (!getConnection().isAuthenticated() && getConnection().isConnected()){
            try {
                //登陆
                getConnection().login(account,psw);
                //登陆之后更改用户状态
                Presence presence = new Presence(Presence.Type.available);
                //设置用户在线
                presence.setMode(Presence.Mode.available);
                //向服务器发送状态
                getConnection().sendPacket(presence);
                //接收消息监听
                ChatManager chatManager = getConnection().getChatManager();
                chatManager.addChatListener(chatManagerListener);
                return true;
            } catch (XMPPException e) {
                e.printStackTrace();
                return false;
            }
        }
        return false;
    }

    /**
     * 聊天管理监听器
     */
    private ChatManagerListener chatManagerListener = new ChatManagerListener(){

        @Override
        public void chatCreated(Chat chat, boolean b) {
            chat.addMessageListener(new MessageListener() {
                @Override
                public void processMessage(Chat chat, Message message) {
                    //当消息内容为空时,直接反悔
                    if (TVUtil.isEmpty(message.getBody())){
                        return;
                    }
                    //当消息内容不可空时,通过接口回调的把消息内容传出去
                    if (xmppManagerCallback != null){
                        xmppManagerCallback.receiveMsg(message);
                    }
                }
            });
        }
    };

    /**
     * 注册用户
     * 表示的是Info/Query(信息与查询)，它为XMPP通信提供请求与响应机制。它与HTTP
     * 协议的基本工作原理非常相似，允许获取和设置查询，与HTTP 的GET 和POST 动作类似。
     * @return
     */
    public IQ registered(String account, String psw){

        if (getConnection() == null){
            return null;
        }

        //设置注册所需要的信息
        Registration registration = new Registration();
        registration.setType(IQ.Type.SET);
        registration.setTo(getConnection().getServiceName());
        registration.setUsername(account);
        registration.setPassword(psw);

        //PacketFilter:包过滤类,过滤一些不用的包
        PacketFilter filter = new AndFilter(new PacketIDFilter(registration.getPacketID()), new PacketTypeFilter(IQ.class));
        PacketCollector collector = getConnection().createPacketCollector(filter);
        // 向服务器端，发送注册Packet包，注意其中Registration是Packet的子类
        getConnection().sendPacket(registration);
        IQ result = (IQ) collector.nextResult(SmackConfiguration.getPacketReplyTimeout());
        collector.cancel(); //停止请求result
        return result;
    }

    /**
     * 退出登陆
     */
    public void outLogin(){
        if (getConnection() == null){
            return;
        }

        //设置退出状态
        Presence presence = new Presence(Presence.Type.unavailable);
        //发送请求
        getConnection().sendPacket(presence);
        //关闭连接
        colseConnection();
    }

    /**
     * 获取用户信息
     * @param user
     * @return
     */
    public VCard getUserInfo(String user){
        VCard vCard = null;
        try {
            vCard = new VCard();
            // 加入这句代码，解决No VCard for
            ProviderManager.getInstance().addIQProvider("vCard", "vcard-temp", new VCardProvider());
            if (user == null){
                vCard.load(getConnection());
            }else{
                vCard.load(getConnection(), user + "@" + Constant.SERVER_NAME);
            }
        } catch (XMPPException e) {
            e.printStackTrace();
        }
        return vCard;
    }

    /**
     * 获取xmpp好友列表
     * 注意:这里的User是在Xmpp包下的User
     */
    public List<User> getFriendList() {
        // Roster:花名册
        if (roster == null) {
            roster = getConnection().getRoster();
        }
        List<User> userList = new ArrayList<User>();
        Collection<RosterEntry> entries = roster.getEntries();
        for(RosterEntry entry : entries){
            userList.add(new User(getUsername(entry.getUser()),entry.getType()));
        }
        Collections.sort(userList,new PingyinComparator());
        return userList;
    }

    /**
     * 通过jid获得username
     * @param fullUsername
     * @return
     */
    public static String getUsername(String fullUsername){
        return fullUsername.split("@")[0];
    }

    /**
     * 搜索用户
     * @param userName
     * @return
     * @throws XMPPException
     */
    public List<String> searchUser(String userName) {
        if (getConnection() == null){
            return null;
        }
        List<String> userList = new ArrayList<>();
        try {
            UserSearchManager search = new UserSearchManager(getConnection());
            Form searchForm = search.getSearchForm("search."+ getConnection().getServiceName());
            Form answerForm = searchForm.createAnswerForm();
            answerForm.setAnswer("Username", true);
            answerForm.setAnswer("search", userName.trim());
            ReportedData data = search.getSearchResults(answerForm,"search." + xmppConnection.getServiceName());
            Iterator<ReportedData.Row> it = data.getRows();
            ReportedData.Row row = null;
            while (it.hasNext()) {
                row = it.next();
                userList.add(row.getValues("Username").next().toString());
            }
        } catch (XMPPException e) {
            e.printStackTrace();
        }
        return userList;
    }

    /**
     * 添加好友(无分组)
     * @param userName
     * @return
     */
    public boolean addFriend(String userName) {
        if (getConnection() == null)
            return false;
        try {
            getConnection().getRoster().createEntry(getFullUsername(userName), getFullUsername(userName), null);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    /**
     * 通过username获得jid
     * @param username
     * @return
     */
    public static String getFullUsername(String username){
        return username + "@" + Constant.SERVER_NAME;
    }

    /**
     * 创建聊天
     * @param toUser
     * @return
     */
    public Chat createChat(String toUser){
        ChatManager chatManager = getConnection().getChatManager();
        Chat newchat = chatManager.createChat(toUser + "@"+ Constant.SERVER_NAME, null);
        return newchat;
    }

    /**
     * 发送文本消息
     * @param message
     */
    public void sendMsg(Chat chat, String message) {
        try {
            chat.sendMessage(message);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * 接口回调
     */
    public interface XmppManagerCallback {
        //接收消息回调函数
        void receiveMsg(Message message);
    }

    /**
     * 设置接口的方法
     * @param xmppManagerCallback 接口对象
     */
    public void setXmppManagerCallback(XmppManagerCallback xmppManagerCallback) {
        this.xmppManagerCallback = xmppManagerCallback;
    }
}

这里面封装了所有的方法

ChatMsg.java

package com.example.xmppdemo.fengzhuang;
import android.os.Parcel;
import android.os.Parcelable;

/**
 * 
 * 描述(请用一句话描述这个内容)
 */

public class ChatMsg implements Parcelable {

    private String sender; // 发送者
    private String body; // 发送的消息

    public String getSender() {
        return sender;
    }

    public void setSender(String sender) {
        this.sender = sender;
    }

    public String getBody() {
        return body;
    }

    public void setBody(String body) {
        this.body = body;
    }

    public static final Creator<ChatMsg> CREATOR = new Creator<ChatMsg>() {
        @Override
        public ChatMsg createFromParcel(Parcel in) {
            ChatMsg chatMsg = new ChatMsg();
            chatMsg.sender = in.readString();
            chatMsg.body = in.readString();
            return chatMsg;
        }

        @Override
        public ChatMsg[] newArray(int size) {
            return null;
        }
    };

    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel parcel, int i) {
        parcel.writeString(sender);
        parcel.writeString(body);
    }
}

还有一个

ChatService.java

package com.example.xmppdemo.service;

import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.IBinder;
import android.support.annotation.Nullable;


import com.example.xmppdemo.ChatActivity;
import com.example.xmppdemo.R;
import com.example.xmppdemo.fengzhuang.ChatMsg;
import com.example.xmppdemo.fengzhuang.Constant;
import com.example.xmppdemo.fengzhuang.XmppManager;

import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.packet.Message;
import org.jivesoftware.smackx.OfflineMessageManager;

import java.util.ArrayList;
import java.util.Iterator;

/**
 31  * 描述(请用一句话描述这个内容)
 */
public class ChatService extends Service implements XmppManager.XmppManagerCallback {

    //接收到的消息集合，包括两种消息: 1，不在对话框界面的消息 2，离线消息
    private ArrayList<ChatMsg> messageList = new ArrayList<>();
    private MesageBroadcastReceiver mesageReceiver;

    @Override
    public void onCreate() {
        XmppManager.getInstance().setXmppManagerCallback(this);
        //注册消息接收广播
        IntentFilter filter = new IntentFilter(Constant.INTENT_ACTION_MESSAGE_RECEIVE);
        mesageReceiver = new MesageBroadcastReceiver();
        registerReceiver(mesageReceiver, filter);
    }

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public void receiveMsg(Message message) {
        ChatMsg chatMsg = new ChatMsg();

        chatMsg.setSender(message.getFrom());
        chatMsg.setBody(message.getBody());
        sendReceiverMsgBroadCast(chatMsg);
    }
    /**
     * 发送广播的方法
     * @param
     */
    private void sendReceiverMsgBroadCast(ChatMsg chatMsg){
        Intent intent = new Intent();
        intent.setAction(Constant.INTENT_ACTION_MESSAGE_RECEIVE);
        intent.putExtra("message", chatMsg);
        /**
         * MesageBroadcastReceiver指定为最后的接受者，Activity.RESULT_CANCELED指定初始的结果码，
         * 如果ChatActivity中的广播接收者处理了这条广播，则结果码会在ChatActivity中被更改为Activity.RESULT_OK，
         * 反之，ChatActivity中的广播接收者没有处理，则结果码仍然为Activity.RESULT_CANCELED
         */
        sendOrderedBroadcast(intent,null,mesageReceiver,null, Activity.RESULT_CANCELED,null,null);
    }
    /**
     * 消息广播
     */
    private class MesageBroadcastReceiver extends BroadcastReceiver{

        @Override
        public void onReceive(Context context, Intent intent) {
            ChatMsg chatMsg = intent.getParcelableExtra("message");
            int resultCode = getResultCode();
            if (isOrderedBroadcast()){  //判断是否有下一个广播,true为是 false为无

                if (resultCode != Activity.RESULT_OK){
                    showMsgNotice(chatMsg);
                }
            }
        }
    }

    /**
     * 显示消息通知
     * @param chatMsg 消息类
     */
    private void showMsgNotice(ChatMsg chatMsg){
        messageList.add(chatMsg);  //把消息实体加入到集合中
        //获取通知服务
        NotificationManager nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        //取消所有
        nm.cancelAll();
        //创建消息
       /* Notification notification = new Notification(R.drawable.ic_launcher
                ,"您有"+messageList.size()+"条新消息", System.currentTimeMillis());
        notification.flags = Notification.FLAG_AUTO_CANCEL;
        notification.sound= Uri.parse("android.resource://" + getPackageName() + "/" + R.raw.ms);
        Intent intent = new Intent(this, ChatActivity.class);
        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.putExtra("from", "notification");
        intent.putParcelableArrayListExtra("messageList", messageList);
        PendingIntent contentIntent = PendingIntent.getActivity(this, R.string.app_name, intent, PendingIntent.FLAG_UPDATE_CURRENT);
        notification.setLatestEventInfo(this, chatMsg.getSender().split("@")[0], chatMsg.getBody(), contentIntent);
        nm.notify(0, notification);*/

        Notification.Builder builder = new Notification.Builder(this);
        builder.setContentText("微信通知"); //设置通知的标题
        builder.setSmallIcon(R.drawable.search_icon); //设置通知的小图标
        builder.setContentText("您有"+messageList.size()+"条新消息"); //写入通知内容
//        builder.setSound(Uri.parse("android.resource://" + getPackageName() + "/" + R.raw.ms));
        Intent intent = new Intent(this, ChatActivity.class);
        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.putExtra("from", "notification");
        intent.putParcelableArrayListExtra("messageList", messageList);
        PendingIntent contentIntent = PendingIntent.getActivity(this, R.string.app_name, intent, PendingIntent.FLAG_UPDATE_CURRENT);
        builder.setContentIntent(contentIntent);
        //获得通知
        Notification notification = builder.getNotification();
        nm.notify(0, notification);
    }

    /**
     * 获取离线消息
     */
    public void getOfflineMessage() {
        OfflineMessageManager offlineMessageManager = new OfflineMessageManager(XmppManager.getInstance().getConnection());
        try {
            Iterator<Message> it = offlineMessageManager.getMessages();
            while (it.hasNext()) {
                Message message = it.next();
                ChatMsg chatMsg = new ChatMsg();
                chatMsg.setSender(message.getFrom());
                chatMsg.setBody(message.getBody());
                sendReceiverMsgBroadCast(chatMsg);
            }
            offlineMessageManager.deleteMessages();
        } catch (XMPPException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        XmppManager.getInstance().colseConnection();
        unregisterReceiver(mesageReceiver);
    }
}

基本重要的就这么多，代码附上，

链接：http://pan.baidu.com/s/1hs1Dg3M 密码：s57b

可能说的不是很清楚，但是代码里面都有