XMPP——Smack[4]状态,心情,头像更改

这里写完,最基本的IM功能也就完了,

还剩下个发送接收文件,离线消息扩展等等

 

呵呵,三天时间,看的不是很深入,欢迎大家补充呀

 

1.       修改自身状态

包括上线,隐身,对某人隐身,对某人上线

public static void updateStateToAvailable(XMPPConnection connection) { Presence presence = new Presence(Presence.Type.available); connection.sendPacket(presence); } public static void updateStateToUnAvailable(XMPPConnection connection) { Presence presence = new Presence(Presence.Type.unavailable); connection.sendPacket(presence); } public static void updateStateToUnAvailableToSomeone(XMPPConnection connection,String userName) { Presence presence = new Presence(Presence.Type.unavailable); presence.setTo(userName); connection.sendPacket(presence); } public static void updateStateToAvailableToSomeone(XMPPConnection connection,String userName) { Presence presence = new Presence(Presence.Type.available); presence.setTo(userName); connection.sendPacket(presence); }

2.       心情修改

   /** * 修改心情 * @param connection * @param status */ public static void changeStateMessage(XMPPConnection connection,String status) { Presence presence = new Presence(Presence.Type.available); presence.setStatus(status); connection.sendPacket(presence); }

3.       修改用户头像

有点麻烦,主要是读入图片文件,编码,传输之

public static void changeImage(XMPPConnection connection,File f) throws XMPPException, IOException { VCard vcard = new VCard(); vcard.load(connection); byte[] bytes; bytes = getFileBytes(f); String encodedImage = StringUtils.encodeBase64(bytes); vcard.setAvatar(bytes, encodedImage); vcard.setEncodedImage(encodedImage); vcard.setField("PHOTO", "<TYPE>image/jpg</TYPE><BINVAL>" + encodedImage + "</BINVAL>", true); ByteArrayInputStream bais = new ByteArrayInputStream( vcard.getAvatar()); Image image = ImageIO.read(bais); ImageIcon ic = new ImageIcon(image); vcard.save(connection); } private static byte[] getFileBytes(File file) throws IOException { BufferedInputStream bis = null; try { bis = new BufferedInputStream(new FileInputStream(file)); int bytes = (int) file.length(); byte[] buffer = new byte[bytes]; int readBytes = bis.read(buffer); if (readBytes != buffer.length) { throw new IOException("Entire file not read"); } return buffer; } finally { if (bis != null) { bis.close(); } } }

4.  补充,用户状态的监听

 

即对方改变头像,状态,心情时,更新自己用户列表,其实这里已经有smack实现的监听器

 

 

 

 

final Roster roster = Client.getRoster(); roster.addRosterListener( new RosterListener() { @Override public void entriesAdded(Collection<String> arg0) { // TODO Auto-generated method stub System.out.println("--------EE:"+"entriesAdded"); } @Override public void entriesDeleted(Collection<String> arg0) { // TODO Auto-generated method stub System.out.println("--------EE:"+"entriesDeleted"); } @Override public void entriesUpdated(Collection<String> arg0) { // TODO Auto-generated method stub System.out.println("--------EE:"+"entriesUpdated"); } @Override public void presenceChanged(Presence arg0) { // TODO Auto-generated method stub System.out.println("--------EE:"+"presenceChanged"); } });

 

下一篇主要是文件传输和接收

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