asmack 註冊 登陸 聊天 多人聊天室 文件傳輸

XMPP協議簡介

XMPP協議（Extensible Messaging and PresenceProtocol，可擴展消息處理現場協議）是一種基於XML的協議，目的是爲了解決及時通信標準而提出來的，最早是在Jabber上實現的。它繼承了在XML環境中靈活的發展性。因此，基於XMPP的應用具有超強的可擴展性。並且XML很易穿過防火牆，所以用XMPP構建的應用不易受到防火牆的阻礙。利用XMPP作爲通用的傳輸機制，不同組織內的不同應用都可以進行有效的通信。

這篇文章有基本的介紹，http://blog.csdn.net/xutaozero21/article/details/4873439

IM

Instant Messenger，及時通信軟件，就是大家使用的QQ、MSN Messenger和Gtalk等等。其中Gtalk 就是基於XMPP 協議的一個實現，其他的則不是。當前IM 幾乎作爲每個上網者必然使用的工具，在國外的大型企業中有一些企業級的IM應用，但是其商業價值還沒完全發揮出來。設想既然XMPP 協議是一個公開的協議，那麼每個企業都可以利用它來開發適合本身企業工作，提高自身生產效率的IM；甚至，你還可以在網絡遊戲中集成這種通信軟件，不但讓你可以邊遊戲邊聊天，也可以開發出適合遊戲本身的IM 應用，比如說一些遊戲關鍵場景提醒功能，團隊語音交流等等都可以基於IM來實現。

 

本文主要講解在android使用xmpp協議進行即時通信，所涉及3個主要的東西，它們是openfire、smack和spark，這個三個東東結合起來就是完整的xmpp IM實現，這裏簡單介紹一下這3個東東在下文的作用：

openfire主要是作爲服務器，負責管理客戶端的通信連接，以及提供客戶端一些通信信息和連接信息。

Smack主要是xmpp協議的實現，提供了一套很好的api，所以下面操作xmpp都是通過使用smack的api來實現，當然因爲是在android裏，所以使用的是asmack這個包，裏面方法跟smack包差不多。

Spark 是IM客戶端的實現，其實就是使用了smack 的api實現的。

 

下圖展示了三者之間的關係：（很明顯這個圖是偷別人的，具體是哪裏我忘了，因爲資料都是複製到文檔後慢慢研究看的）

從圖上可以瞭解到，client 端和server端都可以通過插件的方式來進行擴展，smack是二者傳遞數據的媒介。

 

配置openfire服務器

具體步驟請移步：http://javatech.blog.163.com/blog/static/1766322992010111725339587/

配置成功如果以後ip地址變了，那肯定又是開不了，解決辦法請移步：http://blog.csdn.net/HappySheepherder/article/details/4707124

配置成功後，在服務器創建一個簡單的用戶來測試，然後安裝spark，設置好服務器的ip與端口，使用剛纔創建的用戶登錄，登錄OK說明服務器成功搭建。

Android IM功能（因爲是測試demo，因此界面超級簡陋，代碼都是給出重要的一部分，剩餘的可以在最後下面項目查看）

 

配置要求

android 2.2、 asmack-jse.jar、myeclipse

連接服務器

在打開軟件後會開始初始化，完成與openfire服務器的連接，設置一些配置

<span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">static </span><span style="margin: 0px; padding: 0px; color: black;">{
        XMPPConnection.</span><span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">DEBUG_ENABLED </span><span style="margin: 0px; padding: 0px; color: black;">= </span><span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">true</span><span style="margin: 0px; padding: 0px; color: black;">;
        </span><span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">final </span><span style="margin: 0px; padding: 0px; color: black;">ConnectionConfiguration connectionConfig = </span><span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span><span style="margin: 0px; padding: 0px; color: black;">ConnectionConfiguration(
                </span><span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">host</span><span style="margin: 0px; padding: 0px; color: black;">, 5222, </span><span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">""</span><span style="margin: 0px; padding: 0px; color: black;">);
        </span><span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">// Google talk
        // ConnectionConfiguration connectionConfig = new
        // ConnectionConfiguration(
        // "talk.google.com", 5222, "gmail.com");</span><span style="margin: 0px; padding: 0px; color: black;"></span>

<span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">        // connectionConfig.setSASLAuthenticationEnabled(false);
        </span><span style="margin: 0px; padding: 0px; color: black;">ActivityMain.</span><span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">connection </span><span style="margin: 0px; padding: 0px; color: black;">= </span><span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span><span style="margin: 0px; padding: 0px; color: black;">XMPPConnection(connectionConfig);

        ActivityMain.</span><span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">connection</span><span style="margin: 0px; padding: 0px; color: black;">.</span><span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">DEBUG_ENABLED </span><span style="margin: 0px; padding: 0px; color: black;">= </span><span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">true</span><span style="margin: 0px; padding: 0px; color: black;">;

        ProviderManager pm = </span><span style="margin: 0px; padding: 0px; color: blue;">ProviderManager</span><span style="margin: 0px; padding: 0px; color: black;">.getInstance();
        configure(pm);
    }

</span>

註冊模塊

註冊有兩種方法：一種是用createAccount ，不過我測試了一下發現不能創建用戶，具體原因不詳，下面介紹第二種。

如上圖：註冊成功後服務器將多了ggg用戶。

具體實現如下：

Registration reg = <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span><span style="margin: 0px; padding: 0px; color: blue;">Registration</span>();
                reg.setType(IQ.Type.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">SET</span>);
                reg.setTo(ConnectionSingleton.getInstance().getServiceName());
                reg.setUsername(<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">username</span>.getText().toString());
                reg.setPassword(<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">password</span>.getText().toString());
                reg.addAttribute(<span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"android"</span>, <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"geolo_createUser_android"</span>);
                System.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">out</span>.println(<span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"reg:" </span>+ reg);
                PacketFilter filter = <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span>AndFilter(<span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span>PacketIDFilter(reg
                        .getPacketID()), <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span>PacketTypeFilter(IQ.<span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">class</span>));
                PacketCollector collector = ConnectionSingleton.getInstance()
                        .createPacketCollector(filter);
                ConnectionSingleton.getInstance().sendPacket(reg);
                
                <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">result </span>= (IQ) collector.nextResult(SmackConfiguration
                        .getPacketReplyTimeout());
                <span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">// Stop queuing results
                </span>collector.cancel();<span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">
                 </span><span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">if </span>(<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">result </span>== <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">null</span>) {
                    Toast.makeText(getApplicationContext(), <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"服</span>,
                            Toast.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">LENGTH_SHORT</span>).show();
                } <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">else if </span>(<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">result</span>.getType() == IQ.Type.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">ERROR</span>) {
                    <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">if </span>(<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">result</span>.getError().toString().equalsIgnoreCase(
                            <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"conflict(409)"</span>)) {
                        Toast.makeText(getApplicationContext(), <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"這</span>,
                                Toast.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">LENGTH_SHORT</span>).show();
                    } <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">else </span>{
                        Toast.makeText(getApplicationContext(), <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"注</span>,
                                Toast.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">LENGTH_SHORT</span>).show();
                    }
                } <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">else if </span>(<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">result</span>.getType() == IQ.Type.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">RESULT</span>) {
                    Toast.makeText(getApplicationContext(), <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"恭</span>,
                            Toast.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">LENGTH_SHORT</span>).show();
                }

使用註冊類，設置好註冊的用戶名密碼和一些屬性字段，直接設置包過濾，根據這個過濾創建一個結果集合，發送註冊信息包，等待獲取結果，剩餘就是判斷結果內容.

 

登錄模塊

登錄比較簡單

ConnectionSingleton.getInstance().connect();<span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">// connect
</span>String account = <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">etUsername</span>.getText().toString();
String password = <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">etPassword</span>.getText().toString();
<span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">// 保存用戶和密碼</span>

<span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);"></span>ActivityLogin.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">util</span>.saveString(<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">ACCOUNT_KEY</span>, account);
ActivityLogin.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">util</span>.saveString(<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">PASSWORD_KEY</span>, password);
ConnectionSingleton.getInstance().login(account, password);<span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">// login

// login success 
</span>System.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">out</span>.println(<span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"login success"</span>);
ActivityLogin.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">mCurrentAccount </span>= account;
System.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">out</span>.println(ConnectionSingleton.getInstance()
        .getUser());
<span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">// 登錄成功後發現在線狀態</span>

<span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);"></span>Presence presence = <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span>Presence(Presence.Type.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">available</span>);
ConnectionSingleton.getInstance().sendPacket(presence);

<span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">// 開始主界面</span>

<span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);"></span>Intent intent = <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span>Intent(ActivityLogin.<span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">this</span>,
        ActivityMain.<span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">class</span>);
startActivity(intent);

 

獲取聯繫人模塊（ActivityMain 主界面）

獲取聯繫人並將相關信息保存到一個list數組裏，最後通知listview更新界面

<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">roster </span><span style="margin: 0px; padding: 0px; color: black;">= ActivityMain.</span><span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">connection</span><span style="margin: 0px; padding: 0px; color: black;">.getRoster();
</span><pre class="code" style="margin: 0px 40px 0px 20px; padding: 5px; border: 1px solid rgb(192, 192, 192); border-image: none; font-family: Verdana,Helvetica,微軟雅黑,Arial,宋體,sans-serif; white-space: pre-wrap; -ms-word-wrap: break-word; background-color: rgb(251, 237, 187);" name="code"><span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);"></span> 

<span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">public void </span>updateRoster() {
        Collection<RosterEntry> entries = <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">roster</span>.getEntries();
        <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">for </span>(RosterEntry entry : entries) {
            System.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">out</span>.print(entry.getName() + <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">" - " </span>+ entry.getUser() + <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">" - "
                    </span>+ entry.getType() + <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">" - " </span>+ entry.getGroups().size());
            Presence presence = <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">roster</span>.getPresence(entry.getUser());
            System.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">out</span>.println(<span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">" - " </span>+ presence.getStatus() + <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">" - "
                    </span>+ presence.getFrom());
            User user = <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span>User();
            user.setName(entry.getName());
            user.setUser(entry.getUser());
            user.setType(entry.getType());
            user.setSize(entry.getGroups().size());
            user.setStatus(presence.getStatus());
            user.setFrom(presence.getFrom());
            <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">userinfos</span>.add(user);
        }
        <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">rosterAdapter</span>.notifyDataSetChanged();
    }

單人聊天模塊

第一次修改：

在主界面點擊選擇一個用戶，進入聊天Activity，ActivityChat先獲取傳過來的用戶，創建聊天類並對該用戶設置消息監聽

ChatManager chatmanager = ConnectionSingleton.getInstance()
                .getChatManager();

        <span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">// get user
        </span>Intent intent = getIntent();
        String user = intent.getStringExtra(<span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"user"</span>);
        System.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">out</span>.println(<span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"user:" </span>+ user);
        <span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">// new a session
        </span><span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">newChat </span>= chatmanager.createChat(user, <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">null</span>);
        <span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">// 監聽聊天消息</span>

<span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">        </span>chatmanager.addChatListener(<span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span>ChatManagerListenerEx());

        <span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">// send message
        </span><span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">try </span>{
            <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">newChat</span>.sendMessage(<span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"im bird man"</span>);

        } <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">catch </span>(XMPPException e) {
            <span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">// </span><span style="margin: 0px; padding: 0px; color: rgb(127, 159, 191);">TODO </span><span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">Auto-generated catch block
            </span>e.printStackTrace();
        }

監聽類

<span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">public class </span>ChatManagerListenerEx <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">implements </span>ChatManagerListener {

        <span style="margin: 0px; padding: 0px; color: rgb(100, 100, 100);">@Override
        </span><span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">public void </span>chatCreated(Chat chat, <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">boolean </span>arg1) {
            <span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">// </span><span style="margin: 0px; padding: 0px; color: rgb(127, 159, 191);">TODO </span><span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">Auto-generated method stub
            </span>chat.addMessageListener(<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">ml</span>);
        }

    }

    <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">public class </span>MessageListenerEx <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">implements </span>MessageListener {

        <span style="margin: 0px; padding: 0px; color: rgb(100, 100, 100);">@Override
        </span><span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">public void </span>processMessage(Chat arg0, Message message) {
            String result = message.getFrom() + <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">":" </span>+ message.getBody();
            System.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">out</span>.println(result);
            android.os.Message msg = <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span>android.os.Message();
            msg.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">what </span>= 0;
            Bundle bd = <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span>Bundle();
            bd.putString(<span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"msg"</span>, result);
            msg.setData(bd);
            <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">handler</span>.sendMessage(msg);

        }
    }

 

所獲取到的消息都是通過handler來更新UI

<span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">public </span>Handler <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">handler </span>= <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span>Handler() {

        <span style="margin: 0px; padding: 0px; color: rgb(100, 100, 100);">@Override
        </span><span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">public void </span>handleMessage(android.os.Message msg) {

            <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">switch </span>(msg.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">what</span>) {
            <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">case </span>0: {
                String result = msg.getData().getString(<span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"msg"</span>);
                <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">record</span>.setText(<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">record</span>.getText() + <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"\n" </span>+ result);
            }
                <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">break</span>;
            <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">default</span>:
                <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">break</span>;
            }
        }
    };

 

aaa跟bbb 的聊天

第二次修改:

第一次的測試，發現如果多個人之間都成爲好友，那麼他們之間的聊天就出現了接收不到的信息，當然在跟spark測試時，spark可以收到android端的信息，不過android客戶端是收到這個信息，不過卻沒有顯示出來，具體原因還不太清楚。因此在第二次修改我改成監聽所有聊天信息包，然後再分析包的歸屬，分發到對應的聊天窗口。

 

這裏就是監聽到包後打印的消息，打印出了jid和消息內容

<span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">public class </span>XmppMessageManager <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">implements </span>ChatManagerListener {
        <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">private </span>XMPPConnection _connection;
        <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">private </span>ChatManager manager = <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">null</span>;

        <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">public void </span>initialize(XMPPConnection connection) {
            _connection = connection;
            manager = _connection.getChatManager();
            manager.addChatListener(<span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">this</span>);
        }

        <span style="margin: 0px; padding: 0px; color: rgb(100, 100, 100);">@</span>Override
        <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">public void </span>chatCreated(Chat chat, <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">boolean </span>arg1) {
            <span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">// </span><span style="margin: 0px; padding: 0px; color: rgb(127, 159, 191);">TODO </span><span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">Auto-generated method stub
            </span>chat.addMessageListener(<span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span>MessageListener() {
                <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">public void </span>processMessage(Chat newchat, Message message) {
                    <span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">// 若是聊天窗口存在，將消息轉往目前窗口
                    // 若窗口不存在，創建新的窗口
                    </span>System.out
                            .println(message.getFrom() + <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">":" </span>+ message.getBody());

                    
                    <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">if </span>(!ActivityMain.chats.containsKey(message.getFrom())) {
                        ActivityMain.chats.put(message.getFrom(), newchat);
                    } <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">else </span>{

                    }

                }
            });
        }
    }

主要就是重寫了ChatManagerListener類的監聽，分發處理暫時沒有想好怎麼寫。接着在後臺啓動service就可以開始監聽，行了第一次修改那些可以去掉了^0^。

 

多人聊天模塊

也是在主界面的菜單進入ActivityMultiChat,該界面顯示所創建的房間，點擊就跳轉到ActivityMultiRoom 。

獲取所有房間比較簡單，只需執行下面這段代碼

hostrooms = MultiUserChat.getHostedRooms(ActivityMain.connection,

"conference.zhanghaitao-pc");

跳轉到後獲取要加入的房間的jid，並創建監聽。

jid = getIntent().getStringExtra("jid");

 

<span style="margin: 0px; padding: 0px; color: rgb(0, 255, 0);"><span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">   //</span>後面服務名稱必需是創建房間的那個服務</span>

<span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">   </span>String multiUserRoom = jid;
    <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">try </span>{
        muc = <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span>MultiUserChat(ActivityMain.connection, <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">multiUserRoom</span>);
        <span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">//<span style="margin: 0px; padding: 0px; color: rgb(0, 255, 64);"> </span></span><span style="margin: 0px; padding: 0px; color: rgb(0, 255, 64);">創建聊天室,進入房間後的nickname</span>

<span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">        </span>muc.join(ActivityLogin.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">mCurrentAccount</span>);

        Log.v(TAG, <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"join success"</span>);

    } <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">catch </span>(XMPPException <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">e</span>) {
        <span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">// </span><span style="margin: 0px; padding: 0px; color: rgb(127, 159, 191);">TODO </span><span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">Auto-generated catch block
        </span><span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">e</span>.printStackTrace();
    }
    ChatPacketListener <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">chatListener </span>= <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span><span style="margin: 0px; padding: 0px; color: blue;">ChatPacketListener</span>(muc);
    muc.addMessageListener(chatListener);

 

監聽大概的流程跟單人聊天差不多，都是handler來操作。不過多人聊天是重寫了PacketListener。具體如下（不過該方法是監聽房間的信息，也就是說顯示的是以房間爲名字的消息）：

<span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">class </span>ChatPacketListener <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">implements </span>PacketListener {
        <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">private </span>String <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">_number</span>;
        <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">private </span>Date <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">_lastDate</span>;
        <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">private </span>MultiUserChat <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">_muc</span>;
        <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">private </span>String <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">_roomName</span>;

        <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">public </span>ChatPacketListener(MultiUserChat muc) {
            <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">_number </span>= <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"0"</span>;
            <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">_lastDate </span>= <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span>Date(0);
            <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">_muc </span>= muc;
            <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">_roomName </span>= muc.getRoom();
        }

        <span style="margin: 0px; padding: 0px; color: rgb(100, 100, 100);">@Override
        </span><span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">public void </span>processPacket(Packet packet) {
            Message message = (Message) packet;
            String from = message.getFrom();

            <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">if </span>(message.getBody() != <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">null</span>) {
                DelayInformation inf = (DelayInformation) message.getExtension(
                        <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"x"</span>, <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"jabber:x:delay"</span>);
                Date sentDate;
                <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">if </span>(inf != <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">null</span>) {
                    sentDate = inf.getStamp();
                } <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">else </span>{
                    sentDate = <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span>Date();
                }

                Log.w(<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">TAG</span>, <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"Receive old message: date="
                        </span>+ sentDate.toLocaleString() + <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">" ; message="
                        </span>+ message.getBody());

                android.os.Message msg = <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span>android.os.Message();
                msg.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">what </span>= <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">RECEIVE</span>;
                Bundle bd = <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span>Bundle();
                bd.putString(<span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"from"</span>, from);
                bd.putString(<span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"body"</span>, message.getBody());
                msg.setData(bd);
                <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">handler</span>.sendMessage(msg);
            }
        }
    }

 

下載模塊

在主界面對着用戶名長按，進入下載activity。進入activityFileTransfer，點擊傳輸按鈕即可將文件傳輸給之前選擇的用戶，當然這裏做得比較簡單，並沒有拒絕功能，一旦發現有文件就接受。

<span style="margin: 0px; padding: 0px; color: black;">FileTransferManager transfer = </span><span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span><span style="margin: 0px; padding: 0px; color: black;">FileTransferManager(
                        ActivityMain.</span><span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">connection</span><span style="margin: 0px; padding: 0px; color: black;">);
                String destination = </span><span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">user</span><span style="margin: 0px; padding: 0px; color: black;">;
                OutgoingFileTransfer out = transfer
                        .createOutgoingFileTransfer(destination + </span><span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"/Smack"</span><span style="margin: 0px; padding: 0px; color: black;">);
</span>

那用戶是如何監聽到有文件並且接受呢？在進入主界面的時候就已經開始了一個service（fileListenerService），該服務創建文件的監聽類（XmppFileManager）,監聽類主要繼承FileTransferListener 重寫裏面的fileTransferRequest方法。

File saveTo;
        <span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">// set answerTo for replies and send()
        </span><span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">answerTo </span>= request.getRequestor();
        <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">if </span>(!Environment.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">MEDIA_MOUNTED</span>.equals(Environment
                .getExternalStorageState())) {
            send(<span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"External Media not mounted read/write"</span>);
            <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">return</span>;
        } <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">else if </span>(!<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">landingDir</span>.isDirectory()) {
            send(<span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"The directory " </span>+ <span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">landingDir</span>.getAbsolutePath()
                    + <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">" is not a directory"</span>);
            <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">return</span>;
        }
        saveTo = <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">new </span>File(<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">landingDir</span>, request.getFileName());
        <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">if </span>(saveTo.exists()) {
            send(<span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"The file " </span>+ saveTo.getAbsolutePath() + <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">" already exists"</span>);
            <span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">// delete
            </span>saveTo.delete();
            <span style="margin: 0px; padding: 0px; color: rgb(63, 127, 95);">// return;
        </span>}
        IncomingFileTransfer transfer = request.accept();
        send(<span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"File transfer: " </span>+ saveTo.getName() + <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">" - "
                </span>+ request.getFileSize() / 1024 + <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">" KB"</span>);
        <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">try </span>{
            transfer.recieveFile(saveTo);
            send(<span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"File transfer: " </span>+ saveTo.getName() + <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">" - "
                    </span>+ transfer.getStatus());
            <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">double </span>percents = 0.0;
            <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">while </span>(!transfer.isDone()) {
                <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">if </span>(transfer.getStatus().equals(Status.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">in_progress</span>)) {
                    percents = ((<span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">int</span>) (transfer.getProgress() * 10000)) / 100.0;
                    send(<span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"File transfer: " </span>+ saveTo.getName() + <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">" - "
                            </span>+ percents + <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"%"</span>);
                } <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">else if </span>(transfer.getStatus().equals(Status.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">error</span>)) {
                    send(returnAndLogError(transfer));
                    <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">return</span>;
                }
                Thread.sleep(1000);
            }
            <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">if </span>(transfer.getStatus().equals(Status.<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">complete</span>)) {
                send(<span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"File transfer complete. File saved as "
                        </span>+ saveTo.getAbsolutePath());
            } <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">else </span>{
                send(returnAndLogError(transfer));
            }
        } <span style="margin: 0px; padding: 0px; color: rgb(127, 0, 85);">catch </span>(Exception ex) {
            String message = <span style="margin: 0px; padding: 0px; color: rgb(42, 0, 255);">"Cannot receive the file because an error occured during the process."
                    </span>+ ex;
            Log.e(<span style="margin: 0px; padding: 0px; color: rgb(0, 0, 192);">TAG</span>, message, ex);
            send(message);
        }

 

網上說文件的傳輸遇到幾個比較重要的問題，我也查看了很多資料（國內的基本是寥寥無幾，對此我感到挺無奈的，只能看國外，這樣每次我的英語水平都提高了太無奈了^0^）。在這個android asmack的最新版本好像是解決了幾個比較重要的問題，剩下一個傳輸文件沒反應的問題我在初始化連接時調用了configure方法解決。不過不知道是不是這個原因，後面出現了一個神奇的問題，就是有時可以成功傳輸有時傳輸時客戶端沒響應（如果有人完美解決了這個問題，那就………趕緊將代碼放出來一起共享^-^,以提高我國程序員的整體水平，多偉大遙遠的理想啊~~）。

項目下載

http://files.cnblogs.com/not-code/ASmack.zip

本文爲原創翻譯，如需轉載，請註明作者和出處，謝謝！

出處：http://www.cnblogs.com/not-code/archive/2011/07/16/2108369.html

文章其實在一個星期前就寫好了， 不過一直忙着看asmack源碼，發現有很多可以學習的地方，可以自己定製自己喜歡的類和功能，因此越到後面越發現自己這篇文章很多地方都寫得挺簡單的，差點就不想發了^-^。不過爲了上面那個偉大的理想……