private void initData() {
		try {
			/** 获取好友列表 */
			groupNames = ContacterManager.getGroupNames(XmppConnectionManager
					.getInstance().getConnection().getRoster());
			rGroups = ContacterManager.getGroups(XmppConnectionManager
					.getInstance().getConnection().getRoster());

			/** 获取聊天室列表 */
			Iterator<?> it = ServiceDiscoveryManager
					.getInstanceFor(
							XmppConnectionManager.getInstance().getConnection())
					.discoverItems("conference.wangxc").getItems();
			while (it.hasNext()) {
				DiscoverItems.Item item = (DiscoverItems.Item) it.next();
				chatRoomList.add(item);
				roomNames.add(item.getName());
			}
		} catch (Exception e) {
			groupNames = new ArrayList<String>();
			rGroups = new ArrayList<MRosterGroup>();
		}
	}
	/**
	 * 刷新当前的列表
	 */
	private void refreshList() {
		/** 刷新好友列表 */
		rGroups = ContacterManager.getGroups(XmppConnectionManager
				.getInstance().getConnection().getRoster());
		for (String newGroupName : newNames) {
			MRosterGroup mg = new MRosterGroup(newGroupName,
					new ArrayList<User>());
			rGroups.add(rGroups.size() - 1, mg);
		}
		expandAdapter.setContacter(rGroups);
		expandAdapter.notifyDataSetChanged();

		/** 刷新最近联系人列表 */
		inviteNotices = MessageManager.getInstance(this)
				.getRecentContactsWithLastMsg();
		noticeAdapter.setNoticeList(inviteNotices);
		noticeAdapter.notifyDataSetChanged();
		/**
		 * 有新消息进来的气泡设置
		 */
		setPaoPao();

	}