关于环信即时通信的使用小结

因项目中涉及即时通讯的模块，老大跟我说用环信的，所以去熟悉了下后搬到项目中使用，环信文档地址点击打开链接

首先应该在AndroidManifest.xml文件中配置环信相关

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1. <!-- 设置环信应用的appkey -->  
2.     <meta-data android:name="EASEMOB_APPKEY"  android:value="easemob-demo#chatdemoui" />  
3.     <!-- 声明sdk所需的service SDK核心功能-->  
4.     <service android:name="com.easemob.chat.EMChatService" />  
5.     <!-- 百度地图start -->  
6.        <service  
7.            android:name="com.baidu.location.f"  
8.            android:enabled="true"  
9.            android:process=":remote" >  
10.            <intent-filter>  
11.                <action android:name="com.baidu.location.service_v2.2" >  
12.                </action>  
13.            </intent-filter>  
14.        </service>  

因为项目中只用到单聊的相关，所以只简单记录下重点的

先导入easemobchat_2.2.1.jar和libeasemob_jni.so、libeasemobservice.so库文件

使用前应该在application中初始化

// 初始化环信SDK,一定要先调用init()
        EMChat.getInstance().init(context);

获取聊天列表时要加入实时监听并实现接口EMEventListener

EMChatManager.getInstance().addConnectionListener(connectionListener);
EMContactManager.getInstance().setContactListener(new MyContactListener());

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1. /** 
2.      * 连接监听listener 
3.      *  
4.      */  
5.     public class MyConnectionListener implements EMConnectionListener {  
6.   
7.         @Override  
8.         public void onConnected() {  
9.             boolean contactSynced = HXSDKHelper.getInstance().isContactsSyncedWithServer();  
10.               
11.             // in case group and contact were already synced, we supposed to notify sdk we are ready to receive the events  
12.             if( contactSynced){  
13.                 new Thread(){  
14.                     @Override  
15.                     public void run(){  
16.                         HXSDKHelper.getInstance().notifyForRecevingEvents();  
17.                     }  
18.                 }.start();  
19.             }else{  
20.                   
21.                 if(!contactSynced){  
22.                     asyncFetchContactsFromServer();  
23.                 }  
24.                   
25.                 if(!HXSDKHelper.getInstance().isBlackListSyncedWithServer()){  
26.                     asyncFetchBlackListFromServer();  
27.                 }  
28.             }  
29.               
30.         }  
31.   
32.         @Override  
33.         public void onDisconnected(final int error) {  
34. //          final String st1 = getResources().getString(R.string.can_not_connect_chat_server_connection);  
35. //          final String st2 = getResources().getString(R.string.the_current_network);  
36.             runOnUiThread(new Runnable() {  
37.   
38.                 @Override  
39.                 public void run() {  
40.                     if (error == EMError.USER_REMOVED) {  
41.                         // 显示帐号已经被移除  
42. //                      showAccountRemovedDialog();  
43.                     } else if (error == EMError.CONNECTION_CONFLICT) {  
44.                         // 显示帐号在其他设备登陆dialog  
45. //                      showConflictDialog();  
46.                     } else {  
47. //                      if (NetUtils.hasNetwork(MainActivity.this))  
48. //                          chatHistoryFragment.errorText.setText(st1);  
49. //                      else  
50. //                          chatHistoryFragment.errorText.setText(st2);  
51.   
52.                     }  
53.                 }  
54.   
55.             });  
56.         }  
57.     }  

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1. private InviteMessgeDao inviteMessgeDao;  
2.     private UserDao userDao;  
3.   
4.     /***  
5.      * 好友变化listener  
6.      *   
7.      */  
8.     public class MyContactListener implements EMContactListener {  
9.   
10.         @Override  
11.         public void onContactAdded(List<String> usernameList) {             
12.             // 保存增加的联系人  
13.             Map<String, User> localUsers = WuerbaApplication.getInstance().getContactList();  
14.             Map<String, User> toAddUsers = new HashMap<String, User>();  
15.             for (String username : usernameList) {  
16.                 User user = setUserHead(username);  
17.                 // 添加好友时可能会回调added方法两次  
18.                 if (!localUsers.containsKey(username)) {  
19.                     userDao.saveContact(user);  
20.                 }  
21.                 toAddUsers.put(username, user);  
22.             }  
23.             localUsers.putAll(toAddUsers);  
24.   
25.         }  
26.   
27.         @Override  
28.         public void onContactDeleted(final List<String> usernameList) {  
29.             // 被删除  
30.             Map<String, User> localUsers = WuerbaApplication.getInstance().getContactList();  
31.             for (String username : usernameList) {  
32.                 localUsers.remove(username);  
33.                 userDao.deleteContact(username);  
34.                 inviteMessgeDao.deleteMessage(username);  
35.             }  
36.             runOnUiThread(new Runnable() {  
37.                 public void run() {  
38.                     // 如果正在与此用户的聊天页面  
39.                     String st10 = getResources().getString(R.string.have_you_removed);  
40.                     if (ChatActivity.activityInstance != null  
41.                             && usernameList.contains(ChatActivity.activityInstance.getToChatUsername())) {  
42.                         Toast.makeText(MainActivity.this, ChatActivity.activityInstance.getToChatUsername() + st10, 1)  
43.                                 .show();  
44.                         ChatActivity.activityInstance.finish();  
45.                     }  
46.                     updateUnreadLabel();  
47.                     // 刷新ui  
48.                     mUserTabTwoFragment.refresh();  
49.                 }  
50.             });  
51.   
52.         }  
53.   
54.         @Override  
55.         public void onContactInvited(String username, String reason) {  
56.               
57.             // 接到邀请的消息，如果不处理(同意或拒绝)，掉线后，服务器会自动再发过来，所以客户端不需要重复提醒  
58.             List<InviteMessage> msgs = inviteMessgeDao.getMessagesList();  
59.   
60.             for (InviteMessage inviteMessage : msgs) {  
61.                 if (inviteMessage.getGroupId() == null && inviteMessage.getFrom().equals(username)) {  
62.                     inviteMessgeDao.deleteMessage(username);  
63.                 }  
64.             }  
65.             // 自己封装的javabean  
66.             InviteMessage msg = new InviteMessage();  
67.             msg.setFrom(username);  
68.             msg.setTime(System.currentTimeMillis());  
69.             msg.setReason(reason);  
70.             Log.d("onContactInvited", username + "请求加你为好友,reason: " + reason);  
71.             // 设置相应status  
72.             msg.setStatus(InviteMesageStatus.BEINVITEED);  
73.   
74.         }  
75.   
76.         @Override  
77.         public void onContactAgreed(String username) {  
78.             List<InviteMessage> msgs = inviteMessgeDao.getMessagesList();  
79.             for (InviteMessage inviteMessage : msgs) {  
80.                 if (inviteMessage.getFrom().equals(username)) {  
81.                     return;  
82.                 }  
83.             }  
84.             // 自己封装的javabean  
85.             InviteMessage msg = new InviteMessage();  
86.             msg.setFrom(username);  
87.             msg.setTime(System.currentTimeMillis());  
88.             Log.d("", username + "同意了你的好友请求");  
89.             msg.setStatus(InviteMesageStatus.BEAGREED);  
90.   
91.         }  
92.   
93.         @Override  
94.         public void onContactRefused(String username) {  
95.               
96.             // 参考同意，被邀请实现此功能,demo未实现  
97.             Log.d(username, username + "拒绝了你的好友请求");  
98.         }  
99.   
100.     }  

在onresume中设置事件监听

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1. @Override  
2.     protected void onResume() {  
3.         super.onResume();  
4.         if (!isConflict && !isCurrentAccountRemoved) {  
5.             updateUnreadLabel();  
6.             EMChatManager.getInstance().activityResumed();  
7.         }  
8.   
9.         // unregister this event listener when this activity enters the  
10.         // background  
11.         ChatHXSDKHelper sdkHelper = (ChatHXSDKHelper) ChatHXSDKHelper.getInstance();  
12.         sdkHelper.pushActivity(this);  
13.   
14.         // register the event listener when enter the foreground  
15.         EMChatManager.getInstance().registerEventListener(this,  
16.                 new EMNotifierEvent.Event[] { EMNotifierEvent.Event.EventNewMessage ,EMNotifierEvent.Event.EventOfflineMessage, EMNotifierEvent.Event.EventConversationListChanged});  
17.     }  

在ui被打断时保存

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1. @Override  
2.     protected void onSaveInstanceState(Bundle outState) {  
3.         outState.putBoolean("isConflict", isConflict);  
4.         outState.putBoolean(UIHelper.ACCOUNT_REMOVED, isCurrentAccountRemoved);  
5.         super.onSaveInstanceState(outState);  
6.     }  

在ui销毁时设置注销监听

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1. @Override  
2.     protected void onDestroy() {  
3.         // TODO Auto-generated method stub  
4.         super.onDestroy();  
5.   
6.         if(connectionListener != null){  
7.             EMChatManager.getInstance().removeConnectionListener(connectionListener);  
8.         }  
9.     }  

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1. @Override  
2.     protected void onStop() {  
3.         EMChatManager.getInstance().unregisterEventListener(this);  
4.         ChatHXSDKHelper sdkHelper = (ChatHXSDKHelper) ChatHXSDKHelper.getInstance();  
5.         sdkHelper.popActivity(this);  
6.   
7.         super.onStop();  
8.     }  

具体的聊天可参考环信的demo ，ps：直接拷贝她的聊天adapter到自己项目中进行修改最为简洁，否则容易漏掉某些地方而导致报错