Android：如何使用 quickblox 维护用户在线/离线状态？

Question

我已在我的应用程序中集成了 quickblox 聊天，并希望保持用户在线和离线状态并尝试了以下选项。

1) 如文档中所述，我已关注此链接 https://quickblox.com/developers/SimpleSample-users-android#Online.5COffline_status，但存在一个问题是它无法明确用户在线状态

2) 使用 Ping 管理器：https://quickblox.com/developers/Android_XMPP_Chat_Sample#Ping_a_user 但它总是给出 QBResponseException

3) QBRoaster：此选项不符合要求。

[注意：我使用的是 quickblox 3.3.1 版]

我已经按如下方式实现了 QBPingManager

    public void checkUserOnlineStatus(String mOpponentName) {
        QBChatService.getInstance().getPingManager().setPingInterval(1);
        Performer<QBUser> qbUser = QBUsers.getUserByLogin(mOpponentName);
        qbUser.performAsync(new QBEntityCallback<QBUser>() {
            @Override
            public void onSuccess(QBUser qbUser, Bundle bundle) {
            final int mOpponentUserId = qbUser.getId();
            final QBPingManager pingManager = QBChatService.getInstance().getPingManager();
            pingManager.pingServer(new QBEntityCallback<Void>() {
                @Override
                public void onSuccess(Void aVoid, Bundle bundle) {
                    pingManager.pingUser(mOpponentUserId, new QBEntityCallback<Void>() {
                        @Override
                        public void onSuccess(Void aVoid, Bundle bundle) {
                            Timber.tag(TAG).w("Opponent User is online ");
                        }

                        @Override
                        public void onError(QBResponseException e) {
                            Timber.tag(TAG).e("message(ping user): " + e.getMessage() + "\n localized message: " + e.getLocalizedMessage());
                            e.printStackTrace();
                        }
                    });
                }

                @Override
                public void onError(QBResponseException e) {
                    Timber.tag(TAG).e("message (ping server): " + e.getMessage() + "\n localized message: " + e.getLocalizedMessage());
                }
            });


            }

            @Override
            public void onError(QBResponseException e) {
            Timber.tag(TAG).e("Error : " + e.getMessage() + "\n Message :  " + e.getLocalizedMessage());
            }
        });
      }

感谢您的任何帮助。

Answer 1

在这里我们将找到最后一次看到的时间/日期的在线/离线状态：-

要获得用户的在线/离线状态，您需要发送并确认订阅请求

// to confirm subscription request
QBSubscriptionListener subscriptionListener = new QBSubscriptionListener() {
                @Override
                public void subscriptionRequested(int userId) {
                    try {
                        if (chatRoster != null)
                            chatRoster.confirmSubscription(userId);
                    } catch (SmackException.NotConnectedException e) {

                    } catch (SmackException.NotLoggedInException e) {

                    } catch (XMPPException e) {

                    } catch (SmackException.NoResponseException e) {

                    }
                }
            };

            chatRoster = QBChatService.getInstance().getRoster(QBRoster.SubscriptionMode.mutual, subscriptionListener);


// to send subscription request
     try {
           chatRoster.subscribe(qbChatDialog.getRecipientId()); //getRecipientId is Opponent UserID
         } catch (SmackException.NotConnectedException e) {
           e.printStackTrace();
          }

用户在线/离线时发送状态

   QBPresence presence = new QBPresence(QBPresence.Type.online, "I am now available", 1, QBPresence.Mode.available);
    try {
        chatRoster.sendPresence(presence);
    } catch (SmackException.NotConnectedException e) {

    } catch (Exception e) {
        e.printStackTrace();
    }

获取对手用户的存在

QBPresence presence = chatRoster.getPresence(qbChatDialog.getRecipientId());
 if (presence.getType() == QBPresence.Type.online) {
    //online
  }else{
    //offline
  }

识别用户在线状态何时发生变化

QBRosterListener rosterListener = new QBRosterListener() {
        @Override
        public void entriesDeleted(Collection<Integer> userIds) {

        }

        @Override
        public void entriesAdded(Collection<Integer> userIds) {

        }

        @Override
        public void entriesUpdated(Collection<Integer> userIds) {

        }

        @Override
        public void presenceChanged(QBPresence presence1) {
            try {
                int userid = presence1.getUserId();
                int recid = qbChatDialog.getRecipientId();//opponent   user id
                if (userid == recid) {

                    if (presence1.getType() == QBPresence.Type.online)
                        status.setText(getResources().getString(R.string.online));
                    else {

                        status.setText("");
                        String lastseen = getlastseen();
                        if (lastseen.length() > 0) {
                            status.setText(lastseen);
                        }
                    }
                } else {
                }
            } catch (Exception e) {

            }

        }
    };

获取离线用户的 Last Seen

private String getlastseen() {
        String lastseen = "";
        String appendstring = "";
        try {
            long lastUserActivity = QBChatService.getInstance().getLastUserActivity(qbChatDialog.getRecipientId()); //returns last activity in seconds or error

            Calendar calendar = Calendar.getInstance();
            calendar.add(Calendar.SECOND, -(int) lastUserActivity);

            String format = "dd MMM yyyy hh:mm a";
            if (DateUtils.isToday(calendar.getTimeInMillis())) {
                format = "hh:mm a";
                appendstring = ChatActivity.this.getResources().getString(R.string.today) + ",";
            } else if (isyesterday(calendar.getTimeInMillis())) {
                format = "hh:mm a";
                appendstring = ChatActivity.this.getResources().getString(R.string.yesterday) + ",";
            } else if (Calendar.YEAR == Calendar.getInstance().YEAR)
                format = "dd MMM hh:mm aa";

            SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format);

            lastseen = simpleDateFormat.format(calendar.getTime());

        } catch (XMPPException.XMPPErrorException | SmackException.NotConnectedException e) {
        } catch (Exception e) {
            e.printStackTrace();
        }
        return appendstring + lastseen;
    }

Answer 2

您可以使用 QuickBlox Android SDK 自 3.3.3 版以来的新功能，称为“最后一个活动”。您可以调用 QBChatService.getInstance().getLastUserActivity(userId);结果你会得到： - 0 如果对手在线或 - 几秒钟前对手在线或 - 如果用户较新登录聊天，则会出错。