XMPP——Smack[4]狀態，心情，頭像更改

這裏寫完，最基本的IM功能也就完了，

還剩下個發送接收文件，離線消息擴展等等

 

呵呵，三天時間，看的不是很深入，歡迎大家補充呀

 

1.       修改自身狀態

包括上線，隱身，對某人隱身，對某人上線

[java] view plaincopyprint?

1. public static void updateStateToAvailable(XMPPConnection connection)  
2.     {  
3.         Presence presence = new Presence(Presence.Type.available);  
4.         connection.sendPacket(presence);  
5.      }  
6.       
7.     public static void updateStateToUnAvailable(XMPPConnection connection)  
8.     {  
9.         Presence presence = new Presence(Presence.Type.unavailable);  
10.         connection.sendPacket(presence);  
11.         }  
12.       
13.     public static void updateStateToUnAvailableToSomeone(XMPPConnection connection,String userName)  
14.     {  
15.         Presence presence = new Presence(Presence.Type.unavailable);  
16.         presence.setTo(userName);  
17.         connection.sendPacket(presence);  
18.     }  
19.     public static void updateStateToAvailableToSomeone(XMPPConnection connection,String userName)  
20.     {  
21.         Presence presence = new Presence(Presence.Type.available);  
22.         presence.setTo(userName);  
23.         connection.sendPacket(presence);  
24.   
25.     }  

2.       心情修改

  

[java] view plaincopyprint?

1. /** 
2.      * 修改心情 
3.      * @param connection 
4.      * @param status 
5.      */  
6.     public static void changeStateMessage(XMPPConnection connection,String status)  
7.     {  
8.         Presence presence = new Presence(Presence.Type.available);  
9.         presence.setStatus(status);  
10.         connection.sendPacket(presence);  
11.       
12.     }  

3.       修改用戶頭像

有點麻煩，主要是讀入圖片文件，編碼，傳輸之

[java] view plaincopyprint?

1. public static void changeImage(XMPPConnection connection,File f) throws XMPPException, IOException  
2.     {  
3.       
4.         VCard vcard = new VCard();  
5.         vcard.load(connection);  
6.           
7.             byte[] bytes;  
8.             
9.                 bytes = getFileBytes(f);  
10.                 String encodedImage = StringUtils.encodeBase64(bytes);  
11.                 vcard.setAvatar(bytes, encodedImage);  
12.                 vcard.setEncodedImage(encodedImage);  
13.                 vcard.setField("PHOTO", "<TYPE>image/jpg</TYPE><BINVAL>"  
14.                         + encodedImage + "</BINVAL>", true);  
15.                   
16.                   
17.                 ByteArrayInputStream bais = new ByteArrayInputStream(  
18.                         vcard.getAvatar());  
19.                 Image image = ImageIO.read(bais);  
20.                 ImageIcon ic = new ImageIcon(image);  
21.                    
22.              
23.             
24.             vcard.save(connection);  
25.              
26.     }  
27.       
28.     private static byte[] getFileBytes(File file) throws IOException {  
29.         BufferedInputStream bis = null;  
30.         try {  
31.             bis = new BufferedInputStream(new FileInputStream(file));  
32.             int bytes = (int) file.length();  
33.             byte[] buffer = new byte[bytes];  
34.             int readBytes = bis.read(buffer);  
35.             if (readBytes != buffer.length) {  
36.                 throw new IOException("Entire file not read");  
37.             }  
38.             return buffer;  
39.         } finally {  
40.             if (bis != null) {  
41.                 bis.close();  
42.             }  
43.         }  
44. }  

4.  補充，用戶狀態的監聽

 

即對方改變頭像，狀態，心情時，更新自己用戶列表，其實這裏已經有smack實現的監聽器

 

 

 

 

[java] view plaincopyprint?

1. final Roster roster = Client.getRoster();  
2.           
3.         roster.addRosterListener(  
4.                 new RosterListener() {  
5.   
6.                     @Override  
7.                     public void entriesAdded(Collection<String> arg0) {  
8.                         // TODO Auto-generated method stub  
9.                         System.out.println("--------EE:"+"entriesAdded");  
10.                     }  
11.   
12.                     @Override  
13.                     public void entriesDeleted(Collection<String> arg0) {  
14.                         // TODO Auto-generated method stub  
15.                         System.out.println("--------EE:"+"entriesDeleted");  
16.                     }  
17.   
18.                     @Override  
19.                     public void entriesUpdated(Collection<String> arg0) {  
20.                         // TODO Auto-generated method stub  
21.                         System.out.println("--------EE:"+"entriesUpdated");  
22.                     }  
23.   
24.                     @Override  
25.                     public void presenceChanged(Presence arg0) {  
26.                         // TODO Auto-generated method stub  
27.                         System.out.println("--------EE:"+"presenceChanged");  
28.                     }     
29.                       
30.                 });  
31.               

 

轉：http://blog.csdn.net/wklken/article/details/6460117