多用户聊天中的 smack 存在监听器
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【中文标题】多用户聊天中的 smack 存在监听器【英文标题】:smack presence listener in multi user chat 【发布时间】:2016-05-30 11:25:26 【问题描述】:多用户聊天中的smack 状态监听器没有被调用。使用 Smack Api 登录,然后添加 roster.addRosterListener(mRoasterListener); 但是当聊天室的其他用户的存在发生变化时无法成功收听。我尝试了以下代码来让在线监听器工作:
connection.login(loginUser, passwordUser);
MultiUserChatManager manager =
MultiUserChatManager.getInstanceFor(connection);
muc = manager.getMultiUserChat(roomID + "@" +context.getString(R.string.group_chat_id));
Log.d("Join User: ", "Already Created");
muc.join(Utilities.getUserPhoneNo(context));
muc.addMessageListener(mGroupMessageListener);
Roster roster = Roster.getInstanceFor(connection);//luna
roster.addRosterListener(mRoasterListener);//roasterListener
Log.d("Joined User Phone: ", " " + Utilities.getUserPhoneNo(context));
这个类来监听状态变化......
public class RoasterListener implements RosterListener
public RoasterListener(Context context)
@Override
public void entriesAdded(Collection<String> collection)
@Override
public void entriesUpdated(Collection<String> collection)
@Override
public void entriesDeleted(Collection<String> collection)
@Override
public void presenceChanged(Presence presence)
System.out.println("Presence changed: " + presence.getFrom() + " " + presence);
我尝试了许多 *** 提供的链接,但都没有成功。 请帮忙!
【问题讨论】:
我尝试了这些链接但没有开始工作:***.com/questions/17991739/… 【参考方案1】:对于多用户聊天,您不必使用名册,因为遇到名册中没有的人是很正常的。
要知道谁在 muc 中,首先询问居住者:
muc.join(user,password);
List<String> occupantsAtJoinTime = muc.getOccupants();
for (String occupant : occupantsAtJoinTime)
System.out.println("occupant: "+occupant);
//actions
然后,为了保持 Occupants 列表更新,将 DefaultParticipantStatusListener 注册到您的 muc 并定义该 Listner:
muc.addParticipantStatusListener(new CustomParticipantStatusListner());
定义为(如果需要,有很多方法可以实现):
public class CustomParticipantStatusListner extends DefaultParticipantStatusListener
public void joined(String participant)
System.out.println(participant + "just joined MUC");
//actions (add occupantsRightNow)
public void left(String participant)
System.out.println(participant + " just left MUC");
//actions (remove occupantsRightNow)
所有这一切都与 smack 4.1.7
【讨论】:
我也是这样,当用户加入时,只有加入的方法被调用,但当用户离开房间时,左边的房间没有被调用....你能帮忙【参考方案2】:这是关于多用户聊天中的管理角色修改。 此示例展示了如何向访问者授予语音并监听通知事件:
// User1 creates a room
muc = new MultiUserChat(conn1, "myroom@conference.jabber.org");
muc.create("testbot");
// User1 (which is the room owner) configures the room as a moderated room
Form form = muc.getConfigurationForm();
Form answerForm = form.createAnswerForm();
answerForm.setAnswer("muc#roomconfig_moderatedroom", "1");
muc.sendConfigurationForm(answerForm);
// User2 joins the new room (as a visitor)
MultiUserChat muc2 = new MultiUserChat(conn2, "myroom@conference.jabber.org");
muc2.join("testbot2");
// User2 will listen for his own "voice" notification events
muc2.addUserStatusListener(new DefaultUserStatusListener()
public void voiceGranted()
super.voiceGranted();
...
public void voiceRevoked()
super.voiceRevoked();
...
);
// User3 joins the new room (as a visitor)
MultiUserChat muc3 = new MultiUserChat(conn3, "myroom@conference.jabber.org");
muc3.join("testbot3");
// User3 will lister for other occupants "voice" notification events
muc3.addParticipantStatusListener(new DefaultParticipantStatusListener()
public void voiceGranted(String participant)
super.voiceGranted(participant);
...
public void voiceRevoked(String participant)
super.voiceRevoked(participant);
...
);
// The room's owner grants voice to user2
muc.grantVoice("testbot2");
详情可参考http://web.mit.edu/svalente/lib/smack_3_0_4/documentation/extensions/muc.html。
【讨论】:
【参考方案3】:首先,加入一个聊天室:
public MultiUserChat joinMultiUserChat(String user, String roomsName,
String password)
if (getConnection() == null)
return null;
try
MultiUserChat muc = new MultiUserChat(getConnection(), roomsName
+ "@conference." + getConnection().getServiceName());
DiscussionHistory history = new DiscussionHistory();
history.setMaxChars(0);
// history.setSince(new Date());
muc.join(user, password, history,
SmackConfiguration.getPacketReplyTimeout());
Log.i("MultiUserChat", "Chat room【"+roomsName+"】joined........");
return muc;
catch (XMPPException e)
e.printStackTrace();
Log.i("MultiUserChat", "Chat room【"+roomsName+"】failed........");
return null;
然后,使用 MultiChatUser 发送消息:
try
multiUserChat.sendMessage(message);
catch (XMPPException e)
e.printStackTrace();
添加监听器:
import org.jivesoftware.smack.PacketListener;
import org.jivesoftware.smack.packet.Message;
import org.jivesoftware.smack.packet.Packet;
public class TaxiMultiListener implements PacketListener
@Override
public void processPacket(Packet packet)
Message message = (Message) packet;
String body = message.getBody();
最后,使用 MultiUserChat 调用 Listener:
multiUserChat.addMessageListener(new TaxiMultiListener());
【讨论】:
//
ed 行是怎么回事?
我指的是// history.setSince(new Date());
。
嗯,方法 setSince(java.util.Date since) 用于通过设置开始日期来过滤在那段时间收到的消息。换句话说,只有在指定日期时间之后收到的消息才会包含在历史记录中。更多细节可以参考 smack Javadoc(download.igniterealtime.org/smack/docs/latest/javadoc)。以上是关于多用户聊天中的 smack 存在监听器的主要内容,如果未能解决你的问题,请参考以下文章
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