cn.gen.superwechat.activity.MainActivity.java Source code

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Here is the source code for cn.gen.superwechat.activity.MainActivity.java

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/**
 * Copyright (C) 2013-2014 EaseMob Technologies. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *     http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package cn.gen.superwechat.activity;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;

import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.text.TextUtils;
import android.util.Log;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.KeyEvent;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import com.android.volley.Response;
import com.easemob.EMCallBack;
import com.easemob.EMConnectionListener;
import com.easemob.EMError;
import com.easemob.EMEventListener;
import com.easemob.EMGroupChangeListener;
import com.easemob.EMNotifierEvent;
import com.easemob.EMValueCallBack;

import cn.gen.superwechat.I;
import cn.gen.superwechat.SuperWeChatApplication;
import cn.gen.superwechat.applib.controller.HXSDKHelper;
import com.easemob.chat.EMChatManager;
import com.easemob.chat.EMContactListener;
import com.easemob.chat.EMContactManager;
import com.easemob.chat.EMConversation;
import com.easemob.chat.EMConversation.EMConversationType;
import com.easemob.chat.EMGroup;
import com.easemob.chat.EMGroupManager;
import com.easemob.chat.EMMessage;
import com.easemob.chat.EMMessage.ChatType;
import com.easemob.chat.EMMessage.Type;
import com.easemob.chat.TextMessageBody;
import cn.gen.superwechat.Constant;
import cn.gen.superwechat.DemoHXSDKHelper;
import cn.gen.superwechat.bean.Contact;
import cn.gen.superwechat.data.ApiParams;
import cn.gen.superwechat.data.GsonRequest;
import cn.gen.superwechat.db.InviteMessgeDao;
import cn.gen.superwechat.db.EMUserDao;
import cn.gen.superwechat.domain.EMUser;
import cn.gen.superwechat.domain.InviteMessage;
import cn.gen.superwechat.fragment.ChatAllHistoryFragment;
import cn.gen.superwechat.fragment.ContactlistFragment;
import cn.gen.superwechat.fragment.SettingsFragment;
import cn.gen.superwechat.utils.CommonUtils;
import cn.gen.superwechat.utils.Utils;

import com.easemob.util.EMLog;
import com.easemob.util.HanziToPinyin;
import com.easemob.util.NetUtils;
import com.umeng.analytics.MobclickAgent;

public class MainActivity extends BaseActivity implements EMEventListener {

    protected static final String TAG = "MainActivity";
    Activity mContext;
    // ?textview
    private TextView unreadLabel;
    // textview
    private TextView unreadAddressLable;

    private Button[] mTabs;
    private ContactlistFragment contactListFragment;
    // private ChatHistoryFragment chatHistoryFragment;
    private ChatAllHistoryFragment chatHistoryFragment;
    private SettingsFragment settingFragment;
    private Fragment[] fragments;
    private int index;
    // ?fragmentindex
    private int currentTabIndex;
    // ?
    public boolean isConflict = false;
    // ?
    private boolean isCurrentAccountRemoved = false;

    private MyConnectionListener connectionListener = null;
    private MyGroupChangeListener groupChangeListener = null;

    /**
     * ??
     */
    public boolean getCurrentAccountRemoved() {
        return isCurrentAccountRemoved;
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mContext = this;

        if (savedInstanceState != null && savedInstanceState.getBoolean(Constant.ACCOUNT_REMOVED, false)) {
            // ??home???appcrash
            // fragment??
            DemoHXSDKHelper.getInstance().logout(true, null);
            finish();
            startActivity(new Intent(this, LoginActivity.class));
            return;
        } else if (savedInstanceState != null && savedInstanceState.getBoolean("isConflict", false)) {
            // T??home???appcrash
            // fragment??
            finish();
            startActivity(new Intent(this, LoginActivity.class));
            return;
        }
        setContentView(cn.gen.superwechat.R.layout.activity_main);
        initView();

        // MobclickAgent.setDebugMode( true );
        // --?--
        MobclickAgent.updateOnlineConfig(this);

        if (getIntent().getBooleanExtra("conflict", false) && !isConflictDialogShow) {
            showConflictDialog();
        } else if (getIntent().getBooleanExtra(Constant.ACCOUNT_REMOVED, false) && !isAccountRemovedDialogShow) {
            showAccountRemovedDialog();
        }

        inviteMessgeDao = new InviteMessgeDao(this);
        EMUserDao = new EMUserDao(this);
        // fragment???
        // chatHistoryFragment = new ChatHistoryFragment();
        // ?fragment
        chatHistoryFragment = new ChatAllHistoryFragment();
        contactListFragment = new ContactlistFragment();
        settingFragment = new SettingsFragment();
        fragments = new Fragment[] { chatHistoryFragment, contactListFragment, settingFragment };
        // fragment
        getSupportFragmentManager().beginTransaction()
                .add(cn.gen.superwechat.R.id.fragment_container, chatHistoryFragment)
                .add(cn.gen.superwechat.R.id.fragment_container, contactListFragment).hide(contactListFragment)
                .show(chatHistoryFragment).commit();

        init();
        //???
        ((DemoHXSDKHelper) HXSDKHelper.getInstance()).getUserProfileManager().asyncGetCurrentUserInfo();
    }

    private void init() {
        // setContactListener???
        EMContactManager.getInstance().setContactListener(new MyContactListener());
        // ??listener

        connectionListener = new MyConnectionListener();
        EMChatManager.getInstance().addConnectionListener(connectionListener);

        groupChangeListener = new MyGroupChangeListener();
        // ?listener
        EMGroupManager.getInstance().addGroupChangeListener(groupChangeListener);

        //
        registerInternalDebugReceiver();
    }

    static void asyncFetchGroupsFromServer() {
        HXSDKHelper.getInstance().asyncFetchGroupsFromServer(new EMCallBack() {

            @Override
            public void onSuccess() {
                HXSDKHelper.getInstance().noitifyGroupSyncListeners(true);

                if (HXSDKHelper.getInstance().isContactsSyncedWithServer()) {
                    HXSDKHelper.getInstance().notifyForRecevingEvents();
                }
            }

            @Override
            public void onError(int code, String message) {
                HXSDKHelper.getInstance().noitifyGroupSyncListeners(false);
            }

            @Override
            public void onProgress(int progress, String status) {

            }

        });
    }

    static void asyncFetchContactsFromServer() {
        HXSDKHelper.getInstance().asyncFetchContactsFromServer(new EMValueCallBack<List<String>>() {

            @Override
            public void onSuccess(List<String> usernames) {
                Context context = HXSDKHelper.getInstance().getAppContext();

                System.out.println("----------------" + usernames.toString());
                EMLog.d("roster", "contacts size: " + usernames.size());
                Map<String, EMUser> userlist = new HashMap<String, EMUser>();
                for (String username : usernames) {
                    EMUser EMUser = new EMUser();
                    EMUser.setUsername(username);
                    setUserHearder(username, EMUser);
                    userlist.put(username, EMUser);
                }
                // user""
                EMUser newFriends = new EMUser();
                newFriends.setUsername(Constant.NEW_FRIENDS_USERNAME);
                String strChat = context.getString(cn.gen.superwechat.R.string.Application_and_notify);
                newFriends.setNick(strChat);

                userlist.put(Constant.NEW_FRIENDS_USERNAME, newFriends);
                // "?"
                EMUser groupEMUser = new EMUser();
                String strGroup = context.getString(cn.gen.superwechat.R.string.group_chat);
                groupEMUser.setUsername(Constant.GROUP_USERNAME);
                groupEMUser.setNick(strGroup);
                groupEMUser.setHeader("");
                userlist.put(Constant.GROUP_USERNAME, groupEMUser);

                // "?"
                //                EMUser chatRoomItem = new EMUser();
                //                String strChatRoom = context.getString(cn.gen.superwechat.R.string.chat_room);
                //                chatRoomItem.setUsername(Constant.CHAT_ROOM);
                //                chatRoomItem.setNick(strChatRoom);
                //                chatRoomItem.setHeader("");
                //                userlist.put(Constant.CHAT_ROOM, chatRoomItem);

                // "Robot"
                //              EMUser robotEMUser = new EMUser();
                //              String strRobot = context.getString(cn.gen.superwechat.R.string.robot_chat);
                //              robotEMUser.setUsername(Constant.CHAT_ROBOT);
                //              robotEMUser.setNick(strRobot);
                //              robotEMUser.setHeader("");
                //              userlist.put(Constant.CHAT_ROBOT, robotEMUser);

                // 
                ((DemoHXSDKHelper) HXSDKHelper.getInstance()).setContactList(userlist);
                // db
                EMUserDao dao = new EMUserDao(context);
                List<EMUser> EMUsers = new ArrayList<EMUser>(userlist.values());
                dao.saveContactList(EMUsers);

                HXSDKHelper.getInstance().notifyContactsSyncListener(true);

                if (HXSDKHelper.getInstance().isGroupsSyncedWithServer()) {
                    HXSDKHelper.getInstance().notifyForRecevingEvents();
                }

                ((DemoHXSDKHelper) HXSDKHelper.getInstance()).getUserProfileManager()
                        .asyncFetchContactInfosFromServer(usernames, new EMValueCallBack<List<EMUser>>() {

                            @Override
                            public void onSuccess(List<EMUser> uList) {
                                ((DemoHXSDKHelper) HXSDKHelper.getInstance()).updateContactList(uList);
                                ((DemoHXSDKHelper) HXSDKHelper.getInstance()).getUserProfileManager()
                                        .notifyContactInfosSyncListener(true);
                            }

                            @Override
                            public void onError(int error, String errorMsg) {
                            }
                        });
            }

            @Override
            public void onError(int error, String errorMsg) {
                HXSDKHelper.getInstance().notifyContactsSyncListener(false);
            }

        });
    }

    static void asyncFetchBlackListFromServer() {
        HXSDKHelper.getInstance().asyncFetchBlackListFromServer(new EMValueCallBack<List<String>>() {

            @Override
            public void onSuccess(List<String> value) {
                EMContactManager.getInstance().saveBlackList(value);
                HXSDKHelper.getInstance().notifyBlackListSyncListener(true);
            }

            @Override
            public void onError(int error, String errorMsg) {
                HXSDKHelper.getInstance().notifyBlackListSyncListener(false);
            }

        });
    }

    /**
      * hearder?header??ABCD...????
      * 
      * @param username
      * @param EMUser
      */
    private static void setUserHearder(String username, EMUser EMUser) {
        String headerName = null;
        if (!TextUtils.isEmpty(EMUser.getNick())) {
            headerName = EMUser.getNick();
        } else {
            headerName = EMUser.getUsername();
        }
        if (username.equals(Constant.NEW_FRIENDS_USERNAME)) {
            EMUser.setHeader("");
        } else if (Character.isDigit(headerName.charAt(0))) {
            EMUser.setHeader("#");
        } else {
            EMUser.setHeader(HanziToPinyin.getInstance().get(headerName.substring(0, 1)).get(0).target
                    .substring(0, 1).toUpperCase());
            char header = EMUser.getHeader().toLowerCase().charAt(0);
            if (header < 'a' || header > 'z') {
                EMUser.setHeader("#");
            }
        }
    }

    /**
     * ?
     */
    private void initView() {
        unreadLabel = (TextView) findViewById(cn.gen.superwechat.R.id.unread_msg_number);
        unreadAddressLable = (TextView) findViewById(cn.gen.superwechat.R.id.unread_address_number);
        mTabs = new Button[3];
        mTabs[0] = (Button) findViewById(cn.gen.superwechat.R.id.btn_conversation);
        mTabs[1] = (Button) findViewById(cn.gen.superwechat.R.id.btn_address_list);
        mTabs[2] = (Button) findViewById(cn.gen.superwechat.R.id.btn_setting);
        // tab?
        mTabs[0].setSelected(true);

        registerForContextMenu(mTabs[1]);
    }

    /**
     * button
     * 
     * @param view
     */
    public void onTabClicked(View view) {
        switch (view.getId()) {
        case cn.gen.superwechat.R.id.btn_conversation:
            index = 0;
            break;
        case cn.gen.superwechat.R.id.btn_address_list:
            index = 1;
            break;
        case cn.gen.superwechat.R.id.btn_setting:
            index = 2;
            break;
        }
        if (currentTabIndex != index) {
            FragmentTransaction trx = getSupportFragmentManager().beginTransaction();
            trx.hide(fragments[currentTabIndex]);
            if (!fragments[index].isAdded()) {
                trx.add(cn.gen.superwechat.R.id.fragment_container, fragments[index]);
            }
            trx.show(fragments[index]).commit();
        }
        mTabs[currentTabIndex].setSelected(false);
        // ?tab?
        mTabs[index].setSelected(true);
        currentTabIndex = index;
    }

    /**
     * ?
      */
    @Override
    public void onEvent(EMNotifierEvent event) {
        switch (event.getEvent()) {
        case EventNewMessage: // ?
        {
            EMMessage message = (EMMessage) event.getData();

            // ???
            HXSDKHelper.getInstance().getNotifier().onNewMsg(message);

            refreshUI();
            break;
        }

        case EventOfflineMessage: {
            refreshUI();
            break;
        }

        case EventConversationListChanged: {
            refreshUI();
            break;
        }

        default:
            break;
        }
    }

    private void refreshUI() {
        runOnUiThread(new Runnable() {
            public void run() {
                // bottom bar?
                updateUnreadLabel();
                if (currentTabIndex == 0) {
                    // ??????
                    if (chatHistoryFragment != null) {
                        chatHistoryFragment.refresh();
                    }
                }
            }
        });
    }

    @Override
    public void back(View view) {
        super.back(view);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();

        if (conflictBuilder != null) {
            conflictBuilder.create().dismiss();
            conflictBuilder = null;
        }

        if (connectionListener != null) {
            EMChatManager.getInstance().removeConnectionListener(connectionListener);
        }

        if (groupChangeListener != null) {
            EMGroupManager.getInstance().removeGroupChangeListener(groupChangeListener);
        }

        try {
            unregisterReceiver(internalDebugReceiver);
        } catch (Exception e) {
        }
    }

    /**
     * ?
     */
    public void updateUnreadLabel() {
        int count = getUnreadMsgCountTotal();
        if (count > 0) {
            unreadLabel.setText(String.valueOf(count));
            unreadLabel.setVisibility(View.VISIBLE);
        } else {
            unreadLabel.setVisibility(View.INVISIBLE);
        }
    }

    /**
     * ?
     */
    public void updateUnreadAddressLable() {
        runOnUiThread(new Runnable() {
            public void run() {
                int count = getUnreadAddressCountTotal();
                if (count > 0) {
                    //               unreadAddressLable.setText(String.valueOf(count));
                    unreadAddressLable.setVisibility(View.VISIBLE);
                } else {
                    unreadAddressLable.setVisibility(View.INVISIBLE);
                }
            }
        });

    }

    /**
     * ??
     * 
     * @return
     */
    public int getUnreadAddressCountTotal() {
        int unreadAddressCountTotal = 0;
        if (((DemoHXSDKHelper) HXSDKHelper.getInstance()).getContactList()
                .get(Constant.NEW_FRIENDS_USERNAME) != null)
            unreadAddressCountTotal = ((DemoHXSDKHelper) HXSDKHelper.getInstance()).getContactList()
                    .get(Constant.NEW_FRIENDS_USERNAME).getUnreadMsgCount();
        return unreadAddressCountTotal;
    }

    /**
     * ??
     * 
     * @return
     */
    public int getUnreadMsgCountTotal() {
        int unreadMsgCountTotal = 0;
        int chatroomUnreadMsgCount = 0;
        unreadMsgCountTotal = EMChatManager.getInstance().getUnreadMsgsCount();
        for (EMConversation conversation : EMChatManager.getInstance().getAllConversations().values()) {
            if (conversation.getType() == EMConversationType.ChatRoom)
                chatroomUnreadMsgCount = chatroomUnreadMsgCount + conversation.getUnreadMsgCount();
        }
        return unreadMsgCountTotal - chatroomUnreadMsgCount;
    }

    private InviteMessgeDao inviteMessgeDao;
    private EMUserDao EMUserDao;

    /***
     * ??listener
     * 
     */
    public class MyContactListener implements EMContactListener {

        @Override
        public void onContactAdded(List<String> usernameList) {
            // ??
            Map<String, EMUser> localUsers = ((DemoHXSDKHelper) HXSDKHelper.getInstance()).getContactList();
            HashMap<String, Contact> userList = SuperWeChatApplication.getInstance().getUserList();
            Map<String, EMUser> toAddUsers = new HashMap<String, EMUser>();
            //??name
            ArrayList<String> toAddUserNames = new ArrayList<String>();
            boolean isAdd = false;
            for (String username : usernameList) {
                Log.e("main1", "+++++++222222222+++++++++++++++++++++");
                EMUser EMUser = setUserHead(username);

                // ??added
                if (!localUsers.containsKey(username)) {
                    EMUserDao.saveContact(EMUser);
                    isAdd = true;
                }
                toAddUsers.put(username, EMUser);
                if (userList.containsKey(username)) {
                    toAddUserNames.add(username);

                }
            }
            for (String name : usernameList) {
                Log.e("main1", "++++++++++++++++++++++++++++");
                if (isAdd) {
                    //               String path = null;
                    try {
                        String path = new ApiParams()
                                .with(I.Contact.USER_NAME, SuperWeChatApplication.getInstance().getUserName())
                                .with(I.Contact.CU_NAME, name).getRequestUrl(I.REQUEST_ADD_CONTACT);
                        executeRequest(new GsonRequest<Contact>(path, Contact.class, responseAddContactListener(),
                                errorListener()));
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
            }
            localUsers.putAll(toAddUsers);
            // ui
            if (currentTabIndex == 1)
                contactListFragment.refresh();
        }

        private Response.Listener<Contact> responseAddContactListener() {
            return new Response.Listener<Contact>() {
                @Override
                public void onResponse(Contact contact) {
                    if (contact != null && contact.isResult()) {
                        HashMap<String, Contact> userList = SuperWeChatApplication.getInstance().getUserList();
                        ArrayList<Contact> contactList = SuperWeChatApplication.getInstance().getContactList();
                        if (!userList.containsKey(contact.getMContactCname())) {
                            userList.put(contact.getMContactCname(), contact);
                            contactList.add(contact);
                            sendStickyBroadcast(new Intent("update_contact_list"));
                        }
                        Utils.showToast(mContext, Utils.getResourceString(mContext, contact.getMsg()),
                                Toast.LENGTH_LONG);
                    }
                }
            };
        }

        @Override
        public void onContactDeleted(final List<String> usernameList) {
            // 
            Map<String, EMUser> localUsers = ((DemoHXSDKHelper) HXSDKHelper.getInstance()).getContactList();
            HashMap<String, Contact> userList = SuperWeChatApplication.getInstance().getUserList();
            ArrayList<String> toDeleUserNames = new ArrayList<String>();
            for (String username : usernameList) {
                localUsers.remove(username);
                EMUserDao.deleteContact(username);
                inviteMessgeDao.deleteMessage(username);
                if (userList.containsKey(username)) {
                    toDeleUserNames.add(username);
                }
            }
            if (toDeleUserNames.size() > 0) {
                for (String name : toDeleUserNames) {
                    try {
                        String path = new ApiParams()
                                .with(I.Contact.USER_NAME, SuperWeChatApplication.getInstance().getUserName())
                                .with(I.Contact.CU_NAME, name).getRequestUrl(I.REQUEST_DELETE_CONTACT);
                        executeRequest(new GsonRequest<Boolean>(path, Boolean.class,
                                responseDeleteContactListener(name), errorListener()));
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
            }
            runOnUiThread(new Runnable() {
                public void run() {
                    // ??
                    String st10 = getResources().getString(cn.gen.superwechat.R.string.have_you_removed);
                    if (ChatActivity.activityInstance != null
                            && usernameList.contains(ChatActivity.activityInstance.getToChatUsername())) {
                        Toast.makeText(MainActivity.this, ChatActivity.activityInstance.getToChatUsername() + st10,
                                Toast.LENGTH_LONG).show();
                        ChatActivity.activityInstance.finish();
                    }
                    updateUnreadLabel();
                    // ui
                    contactListFragment.refresh();
                    chatHistoryFragment.refresh();
                }
            });

        }

        private Response.Listener<Boolean> responseDeleteContactListener(final String name) {
            return new Response.Listener<Boolean>() {
                @Override
                public void onResponse(Boolean response) {
                    if (response) {
                        SuperWeChatApplication.getInstance().getUserList().remove(name);
                        SuperWeChatApplication.getInstance().getContactList().remove(name);
                        sendStickyBroadcast(new Intent("update_contact_list"));
                    }
                }
            };
        }

        @Override
        public void onContactInvited(String username, String reason) {

            // ???(???)???????????
            List<InviteMessage> msgs = inviteMessgeDao.getMessagesList();

            for (InviteMessage inviteMessage : msgs) {
                if (inviteMessage.getGroupId() == null && inviteMessage.getFrom().equals(username)) {
                    inviteMessgeDao.deleteMessage(username);
                }
            }
            // ?javabean
            InviteMessage msg = new InviteMessage();
            msg.setFrom(username);
            msg.setTime(System.currentTimeMillis());
            msg.setReason(reason);
            Log.d(TAG, username + "?,reason: " + reason);
            // status
            msg.setStatus(InviteMessage.InviteMesageStatus.BEINVITEED);
            notifyNewIviteMessage(msg);

        }

        @Override
        public void onContactAgreed(String username) {
            List<InviteMessage> msgs = inviteMessgeDao.getMessagesList();
            for (InviteMessage inviteMessage : msgs) {
                if (inviteMessage.getFrom().equals(username)) {
                    return;
                }
            }
            // ?javabean
            InviteMessage msg = new InviteMessage();
            msg.setFrom(username);
            msg.setTime(System.currentTimeMillis());
            Log.d(TAG, username + "???");
            msg.setStatus(InviteMessage.InviteMesageStatus.BEAGREED);
            notifyNewIviteMessage(msg);

        }

        @Override
        public void onContactRefused(String username) {

            // ???,demo
            Log.d(username, username + "??");
        }

    }

    /**
     * ?listener
     * 
     */
    public class MyConnectionListener implements EMConnectionListener {

        @Override
        public void onConnected() {
            boolean groupSynced = HXSDKHelper.getInstance().isGroupsSyncedWithServer();
            boolean contactSynced = HXSDKHelper.getInstance().isContactsSyncedWithServer();

            // in case group and contact were already synced, we supposed to notify sdk we are ready to receive the events
            if (groupSynced && contactSynced) {
                new Thread() {
                    @Override
                    public void run() {
                        HXSDKHelper.getInstance().notifyForRecevingEvents();
                    }
                }.start();
            } else {
                if (!groupSynced) {
                    asyncFetchGroupsFromServer();
                }

                if (!contactSynced) {
                    asyncFetchContactsFromServer();
                }

                if (!HXSDKHelper.getInstance().isBlackListSyncedWithServer()) {
                    asyncFetchBlackListFromServer();
                }
            }

            runOnUiThread(new Runnable() {

                @Override
                public void run() {
                    chatHistoryFragment.errorItem.setVisibility(View.GONE);
                }

            });
        }

        @Override
        public void onDisconnected(final int error) {
            final String st1 = getResources()
                    .getString(cn.gen.superwechat.R.string.can_not_connect_chat_server_connection);
            final String st2 = getResources().getString(cn.gen.superwechat.R.string.the_current_network);
            runOnUiThread(new Runnable() {

                @Override
                public void run() {
                    if (error == EMError.USER_REMOVED) {
                        // ???
                        showAccountRemovedDialog();
                    } else if (error == EMError.CONNECTION_CONFLICT) {
                        // ??dialog
                        showConflictDialog();
                    } else {
                        chatHistoryFragment.errorItem.setVisibility(View.VISIBLE);
                        if (NetUtils.hasNetwork(MainActivity.this))
                            chatHistoryFragment.errorText.setText(st1);
                        else
                            chatHistoryFragment.errorText.setText(st2);

                    }
                }

            });
        }
    }

    /**
     * MyGroupChangeListener
     */
    public class MyGroupChangeListener implements EMGroupChangeListener {

        @Override
        public void onInvitationReceived(String groupId, String groupName, String inviter, String reason) {

            boolean hasGroup = false;
            for (EMGroup group : EMGroupManager.getInstance().getAllGroups()) {
                if (group.getGroupId().equals(groupId)) {
                    hasGroup = true;
                    break;
                }
            }
            if (!hasGroup)
                return;

            // 
            String st3 = getResources().getString(cn.gen.superwechat.R.string.Invite_you_to_join_a_group_chat);
            EMMessage msg = EMMessage.createReceiveMessage(Type.TXT);
            msg.setChatType(ChatType.GroupChat);
            msg.setFrom(inviter);
            msg.setTo(groupId);
            msg.setMsgId(UUID.randomUUID().toString());
            msg.addBody(new TextMessageBody(inviter + " " + st3));
            // ??
            EMChatManager.getInstance().saveMessage(msg);
            // ???
            HXSDKHelper.getInstance().getNotifier().viberateAndPlayTone(msg);

            runOnUiThread(new Runnable() {
                public void run() {
                    updateUnreadLabel();
                    // ui
                    if (currentTabIndex == 0)
                        chatHistoryFragment.refresh();
                    if (CommonUtils.getTopActivity(MainActivity.this).equals(GroupsActivity.class.getName())) {
                        GroupsActivity.instance.onResume();
                    }
                }
            });

        }

        @Override
        public void onInvitationAccpted(String groupId, String inviter, String reason) {

        }

        @Override
        public void onInvitationDeclined(String groupId, String invitee, String reason) {

        }

        @Override
        public void onUserRemoved(String groupId, String groupName) {

            // ??Tdemo?
            // ui
            runOnUiThread(new Runnable() {
                public void run() {
                    try {
                        updateUnreadLabel();
                        if (currentTabIndex == 0)
                            chatHistoryFragment.refresh();
                        if (CommonUtils.getTopActivity(MainActivity.this).equals(GroupsActivity.class.getName())) {
                            GroupsActivity.instance.onResume();
                        }
                    } catch (Exception e) {
                        EMLog.e(TAG, "refresh exception " + e.getMessage());
                    }
                }
            });
        }

        @Override
        public void onGroupDestroy(String groupId, String groupName) {

            // 
            // ??,demo?
            // ui
            runOnUiThread(new Runnable() {
                public void run() {
                    updateUnreadLabel();
                    if (currentTabIndex == 0)
                        chatHistoryFragment.refresh();
                    if (CommonUtils.getTopActivity(MainActivity.this).equals(GroupsActivity.class.getName())) {
                        GroupsActivity.instance.onResume();
                    }
                }
            });

        }

        @Override
        public void onApplicationReceived(String groupId, String groupName, String applyer, String reason) {

            // ?
            InviteMessage msg = new InviteMessage();
            msg.setFrom(applyer);
            msg.setTime(System.currentTimeMillis());
            msg.setGroupId(groupId);
            msg.setGroupName(groupName);
            msg.setReason(reason);
            Log.d(TAG, applyer + " ?" + groupName);
            msg.setStatus(InviteMessage.InviteMesageStatus.BEAPPLYED);
            notifyNewIviteMessage(msg);
        }

        @Override
        public void onApplicationAccept(String groupId, String groupName, String accepter) {

            String st4 = getResources()
                    .getString(cn.gen.superwechat.R.string.Agreed_to_your_group_chat_application);
            // ??
            EMMessage msg = EMMessage.createReceiveMessage(Type.TXT);
            msg.setChatType(ChatType.GroupChat);
            msg.setFrom(accepter);
            msg.setTo(groupId);
            msg.setMsgId(UUID.randomUUID().toString());
            msg.addBody(new TextMessageBody(accepter + " " + st4));
            // ????
            EMChatManager.getInstance().saveMessage(msg);
            // ???
            HXSDKHelper.getInstance().getNotifier().viberateAndPlayTone(msg);

            runOnUiThread(new Runnable() {
                public void run() {
                    updateUnreadLabel();
                    // ui
                    if (currentTabIndex == 0)
                        chatHistoryFragment.refresh();
                    if (CommonUtils.getTopActivity(MainActivity.this).equals(GroupsActivity.class.getName())) {
                        GroupsActivity.instance.onResume();
                    }
                }
            });
        }

        @Override
        public void onApplicationDeclined(String groupId, String groupName, String decliner, String reason) {
            // ?demo
        }
    }

    /**
     * ????
     * 
     * @param msg
     */
    private void notifyNewIviteMessage(InviteMessage msg) {
        saveInviteMsg(msg);
        // ???
        HXSDKHelper.getInstance().getNotifier().viberateAndPlayTone(null);

        // bottom bar?
        updateUnreadAddressLable();
        // ??ui
        if (currentTabIndex == 1)
            contactListFragment.refresh();
    }

    /**
     * ?msg
     * 
     * @param msg
     */
    private void saveInviteMsg(InviteMessage msg) {
        // ?msg
        inviteMessgeDao.saveMessage(msg);
        // 1
        EMUser EMUser = ((DemoHXSDKHelper) HXSDKHelper.getInstance()).getContactList()
                .get(Constant.NEW_FRIENDS_USERNAME);
        if (EMUser.getUnreadMsgCount() == 0)
            EMUser.setUnreadMsgCount(EMUser.getUnreadMsgCount() + 1);
    }

    /**
     * set head
     * 
     * @param username
     * @return
     */
    EMUser setUserHead(String username) {
        EMUser EMUser = new EMUser();
        EMUser.setUsername(username);
        String headerName = null;
        if (!TextUtils.isEmpty(EMUser.getNick())) {
            headerName = EMUser.getNick();
        } else {
            headerName = EMUser.getUsername();
        }
        if (username.equals(Constant.NEW_FRIENDS_USERNAME)) {
            EMUser.setHeader("");
        } else if (Character.isDigit(headerName.charAt(0))) {
            EMUser.setHeader("#");
        } else {
            EMUser.setHeader(HanziToPinyin.getInstance().get(headerName.substring(0, 1)).get(0).target
                    .substring(0, 1).toUpperCase());
            char header = EMUser.getHeader().toLowerCase().charAt(0);
            if (header < 'a' || header > 'z') {
                EMUser.setHeader("#");
            }
        }
        return EMUser;
    }

    @Override
    protected void onResume() {
        super.onResume();
        if (!isConflict && !isCurrentAccountRemoved) {
            updateUnreadLabel();
            updateUnreadAddressLable();
            EMChatManager.getInstance().activityResumed();
        }

        // unregister this event listener when this activity enters the
        // background
        DemoHXSDKHelper sdkHelper = (DemoHXSDKHelper) DemoHXSDKHelper.getInstance();
        sdkHelper.pushActivity(this);

        // register the event listener when enter the foreground
        EMChatManager.getInstance().registerEventListener(this,
                new EMNotifierEvent.Event[] { EMNotifierEvent.Event.EventNewMessage,
                        EMNotifierEvent.Event.EventOfflineMessage,
                        EMNotifierEvent.Event.EventConversationListChanged });
    }

    @Override
    protected void onStop() {
        EMChatManager.getInstance().unregisterEventListener(this);
        DemoHXSDKHelper sdkHelper = (DemoHXSDKHelper) DemoHXSDKHelper.getInstance();
        sdkHelper.popActivity(this);

        super.onStop();
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        outState.putBoolean("isConflict", isConflict);
        outState.putBoolean(Constant.ACCOUNT_REMOVED, isCurrentAccountRemoved);
        super.onSaveInstanceState(outState);
    }

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if (keyCode == KeyEvent.KEYCODE_BACK) {
            moveTaskToBack(false);
            return true;
        }
        return super.onKeyDown(keyCode, event);
    }

    private android.app.AlertDialog.Builder conflictBuilder;
    private android.app.AlertDialog.Builder accountRemovedBuilder;
    private boolean isConflictDialogShow;
    private boolean isAccountRemovedDialogShow;
    private BroadcastReceiver internalDebugReceiver;

    /**
     * ??dialog
     */
    private void showConflictDialog() {
        isConflictDialogShow = true;
        DemoHXSDKHelper.getInstance().logout(false, null);
        String st = getResources().getString(cn.gen.superwechat.R.string.Logoff_notification);
        if (!MainActivity.this.isFinishing()) {
            // clear up global variables
            try {
                if (conflictBuilder == null)
                    conflictBuilder = new android.app.AlertDialog.Builder(MainActivity.this);
                conflictBuilder.setTitle(st);
                conflictBuilder.setMessage(cn.gen.superwechat.R.string.connect_conflict);
                conflictBuilder.setPositiveButton(cn.gen.superwechat.R.string.ok,
                        new DialogInterface.OnClickListener() {

                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                dialog.dismiss();
                                conflictBuilder = null;
                                finish();
                                startActivity(new Intent(MainActivity.this, LoginActivity.class));
                            }
                        });
                conflictBuilder.setCancelable(false);
                conflictBuilder.create().show();
                isConflict = true;
            } catch (Exception e) {
                EMLog.e(TAG, "---------color conflictBuilder error" + e.getMessage());
            }

        }

    }

    /**
     * ??dialog
     */
    private void showAccountRemovedDialog() {
        isAccountRemovedDialogShow = true;
        DemoHXSDKHelper.getInstance().logout(true, null);
        String st5 = getResources().getString(cn.gen.superwechat.R.string.Remove_the_notification);
        if (!MainActivity.this.isFinishing()) {
            // clear up global variables
            try {
                if (accountRemovedBuilder == null)
                    accountRemovedBuilder = new android.app.AlertDialog.Builder(MainActivity.this);
                accountRemovedBuilder.setTitle(st5);
                accountRemovedBuilder.setMessage(cn.gen.superwechat.R.string.em_user_remove);
                accountRemovedBuilder.setPositiveButton(cn.gen.superwechat.R.string.ok,
                        new DialogInterface.OnClickListener() {

                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                dialog.dismiss();
                                accountRemovedBuilder = null;
                                finish();
                                startActivity(new Intent(MainActivity.this, LoginActivity.class));
                            }
                        });
                accountRemovedBuilder.setCancelable(false);
                accountRemovedBuilder.create().show();
                isCurrentAccountRemoved = true;
            } catch (Exception e) {
                EMLog.e(TAG, "---------color userRemovedBuilder error" + e.getMessage());
            }

        }

    }

    @Override
    protected void onNewIntent(Intent intent) {
        super.onNewIntent(intent);
        if (getIntent().getBooleanExtra("conflict", false) && !isConflictDialogShow) {
            showConflictDialog();
        } else if (getIntent().getBooleanExtra(Constant.ACCOUNT_REMOVED, false) && !isAccountRemovedDialogShow) {
            showAccountRemovedDialog();
        }
    }

    /**
     * ??
     */
    private void registerInternalDebugReceiver() {
        internalDebugReceiver = new BroadcastReceiver() {

            @Override
            public void onReceive(Context context, Intent intent) {
                DemoHXSDKHelper.getInstance().logout(true, new EMCallBack() {

                    @Override
                    public void onSuccess() {
                        runOnUiThread(new Runnable() {
                            public void run() {
                                // ??
                                finish();
                                startActivity(new Intent(MainActivity.this, LoginActivity.class));

                            }
                        });
                    }

                    @Override
                    public void onProgress(int progress, String status) {
                    }

                    @Override
                    public void onError(int code, String message) {
                    }
                });
            }
        };
        IntentFilter filter = new IntentFilter(getPackageName() + ".em_internal_debug");
        registerReceiver(internalDebugReceiver, filter);
    }

    @Override
    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
        super.onCreateContextMenu(menu, v, menuInfo);
        //getMenuInflater().inflate(R.menu.context_tab_contact, menu);
    }
}