Android实现聊天记录上传本地服务器（即时通讯）

即时通讯功能，使用SDK里封装的方法，获取聊天记录，接口请求成功，但获取不到数据。使用本地的服务器保存聊天记录，实现方法如下：

1. ChatFragment.java中请求聊天记录：

public class ChatFragment extends EaseChatFragment implements EaseChatFragmentHelper {
 @Override
 protected void setUpView() {
  setChatFragmentHelper(this);
  String userName = DemoHelper.getInstance().getCurrentUsernName();
  conversation = EMClient.getInstance().chatManager().getConversation(toChatUsername, EaseCommonUtils.getConversationType(chatType), true);
  Log.e(TAG,"conversation.getAllMsgCount()="+conversation.getAllMsgCount());

  if (conversation.getAllMsgCount() != 0 && conversation.getAllMsgCount() != 1) {
   setLisener();
  } else {
   conversation.clearAllMessages();
   conversation.clear();
   showWaitDialog("数据加载中……").show();
   getHistoryMsg(userName,toChatUsername);
  }
 }

 private void setLisener() {
  if (chatType == Constant.CHATTYPE_SINGLE) {
   Map<String, RobotUser> robotMap = DemoHelper.getInstance().getRobotList();
   if(robotMap!=null && robotMap.containsKey(toChatUsername)){
    isRobot = true;
   }
  }
  super.setUpView();
  ……

  setOnRefresh1Listener(new OnRefresh1Listener() {
   @Override
   public boolean refresh(int page) {
    pageNo = page;
    getHistoryMsg(DemoHelper.getInstance().getCurrentUsernName(),toChatUsername);
    return false;
   }
  });
 }

 List<EMMessage> emMessages = new ArrayList<>();
 List<RemoteMessage> remoteMessages = new ArrayList<>();
 int pageNo = 1;
 private void getHistoryMsg(String sendUser, String receiveUser) {
  HashMap<String, Object> baseParam = new HashMap<>(4);
  baseParam.put("pageNo",pageNo);
  baseParam.put("pageSize",10);
  if (chatType == EaseConstant.CHATTYPE_GROUP) {
   baseParam.put("sendUser",receiveUser);
   baseParam.put("receiveUser",receiveUser);
  } else {
   baseParam.put("sendUser",sendUser);
   baseParam.put("receiveUser",receiveUser);
  }

  OkHttpUtil.post(TAG, WebApi.MSN_CHAT_LIST, baseParam, new StringCallback() {
   @Override
   public void onError(Call call, Exception e, int id) {
    Log.e(TAG,"getHistoryMsg e="+ e);
   }

   @Override
   public void onResponse(String response, int id) {
    Log.e(TAG,"getHistoryMsg response="+ response);
    try {
     JSONObject object = new JSONObject(response);
     if (object.getInt("code") == 200) {
      JSONObject object1 = object.getJSONObject("data");
      Gson gson = new Gson();

      if (pageNo == 1) {
       remoteMessages.clear();
      }
      ListPageBean listPageBean = gson.fromJson(object1.toString(),ListPageBean.class);
      if (listPageBean.isLastPage()) {
       isLastPage = true;
      } else {
       isLastPage = false;
      }

      JSONArray array = object1.getJSONArray("list");
      for (int i = 0;i<array.length();i++) {
       RemoteMessage remoteMessage = gson.fromJson(array.get(i).toString(),RemoteMessage.class);
       convertMsg(remoteMessage);
      }
      Log.e(TAG,"emMessages.size()="+emMessages.size());
      //下拉加载
      if (emMessages.size()< 10) {
       haveMoreData = false;
      } else {
       haveMoreData = true;
      }
      importDataBase(emMessages);
     }
    } catch (JSONException e) {
     e.printStackTrace();
     hideWaitDialog();
    }
   }
  });
 }

 /*
 * 将从接口获取的数据转换成EMMessage对象
 * */
 private void convertMsg(RemoteMessage remoteMessage) {
  EMMessage message = null;
  Log.e(TAG,"getHistoryMsg Message="+ remoteMessage.getMessage()+","+remoteMessage.getSendTime()+","+remoteMessage.getCreateDate());
  if (remoteMessage.getMesType().equals("1")) {
   message = EMMessage.createTxtSendMessage(remoteMessage.getMessage(), remoteMessage.getReceiveUser());
  } else if (remoteMessage.getMesType().equals("2")) {
   message = EMMessageUtils.createLocationMsg(remoteMessage);
  } else if (remoteMessage.getMesType().equals("3")) {//语音
   message = createVoiceMsg(remoteMessage);
  } else if (remoteMessage.getMesType().equals("4")) {//视频
   message = EMMessageUtils.createVideoMsg(remoteMessage);
   getFile(message,remoteMessage.getMesType(),remoteMessage.getFileUrl(),((EMVideoMessageBody)message.getBody()).getFileName());
  } else if (remoteMessage.getMesType().equals("5")) {//图片
   message = createImageMsg(remoteMessage);
  } else if (remoteMessage.getMesType().equals("6")) {//文件
   message = createFileMsg(remoteMessage);
  } else if (remoteMessage.getMesType().equals("7")) {//语音
   message = EMMessage.createTxtSendMessage(remoteMessage.getMessage(), remoteMessage.getReceiveUser());
   message.setAttribute(Constant.MESSAGE_ATTR_IS_VOICE_CALL,true);
  } else if (remoteMessage.getMesType().equals("8")) {//视频电话
   message = EMMessage.createTxtSendMessage(remoteMessage.getMessage(), remoteMessage.getReceiveUser());
   message.setAttribute(Constant.MESSAGE_ATTR_IS_VIDEO_CALL,true);
  } else if (remoteMessage.getMesType().equals("9")) {
   message = EMMessage.createTxtSendMessage(remoteMessage.getMessage(), remoteMessage.getReceiveUser());
   message.setAttribute("is_office",true);
  }
  if (remoteMessage.getSendUser().equals(DemoHelper.getInstance().getCurrentUsernName())) {
   message.setDirection(EMMessage.Direct.SEND);
  } else {
   message.setDirection(EMMessage.Direct.RECEIVE);
  }

  if (remoteMessage.getReceiveType().equals("0")) {
   message.setChatType(EMMessage.ChatType.Chat);
  } else {
   message.setChatType(EMMessage.ChatType.GroupChat);
  }
//  message.setChatType(EMMessage.ChatType.Chat);
  message.setFrom(remoteMessage.getSendUser());
  message.setMsgId(remoteMessage.getMsgId());
  message.setMsgTime(Long.valueOf(remoteMessage.getSendTime()));
  message.setStatus(EMMessage.Status.SUCCESS);
  conversation.insertMessage(message);
//       updateMsg(message);
  emMessages.add(message);
 }

 private EMMessage createFileMsg(RemoteMessage remoteMessage) {
  EMMessage message = null;
  String msgStr = remoteMessage.getMessage();
  String[] msgArr = msgStr.split(",");
  String localurl="";
  for (int j=0;j<msgArr.length;j++) {
   String[] lat = msgArr[j].split(":");
   if (lat[0].contains("localUrl")) {
    localurl = lat[1].trim();
   }
  }

  message = EMMessageUtils.createFileSendMessage(remoteMessage.getSendUser(),localurl, remoteMessage.getReceiveUser());
  getFile(message,remoteMessage.getMesType(),remoteMessage.getFileUrl(),((EMFileMessageBody)message.getBody()).getFileName());
  ((EMFileMessageBody)message.getBody()).setRemoteUrl(remoteMessage.getFileUrl());
  return message;
 }

 private EMMessage createImageMsg(RemoteMessage remoteMessage) {
  EMMessage message = null;
  String msgStr = remoteMessage.getMessage();
  String[] msgArr = msgStr.split(",");
  String localurl="";
  for (int j=0;j<msgArr.length;j++) {
   String[] lat = msgArr[j].split(":");
   if (lat[0].contains("localurl")) {
    localurl = lat[1].trim();
   }
  }

  message = EMMessageUtils.createImageSendMessage(remoteMessage.getSendUser(),localurl, false, remoteMessage.getReceiveUser());
  getFile(message,remoteMessage.getMesType(),remoteMessage.getFileUrl(),((EMImageMessageBody)message.getBody()).getFileName());
  ((EMImageMessageBody)message.getBody()).setRemoteUrl(remoteMessage.getFileUrl());
  return message;
 }

 private EMMessage createVoiceMsg(RemoteMessage remoteMessage) {
  EMMessage message = null;
  int size = 0;
  if (!StringUtils.isEmpty(remoteMessage.getSize())) {
   size = Integer.valueOf(remoteMessage.getSize());
  }
  String msgStr = remoteMessage.getMessage();
  String[] msgArr = msgStr.split(",");
  String localurl="";
  for (int j=0;j<msgArr.length;j++) {
   String[] lat = msgArr[j].split(":");
   if (lat[0].contains("localurl")) {
    localurl = lat[1].trim();
   }
  }

  message = EMMessageUtils.createVoiceSendMessage(localurl, size, remoteMessage.getReceiveUser());
  ((EMVoiceMessageBody)message.getBody()).setRemoteUrl(remoteMessage.getFileUrl());
  getFile(message,remoteMessage.getMesType(),remoteMessage.getFileUrl(),((EMVoiceMessageBody)message.getBody()).getFileName());
  return message;
 }

 /*
 * 下载文件
 * */
 HttpURLConnection con;
 private void downLoad(EMMessage emMessage,String type,String path, String fileName) {
  try {
   URL url = new URL(path);
   con = (HttpURLConnection) url.openConnection();
   con.setReadTimeout(5000);
   con.setConnectTimeout(5000);
   con.setRequestProperty("Charset", "UTF-8");
   con.setRequestMethod("GET");
   if (con.getResponseCode() == 200) {
    InputStream is = con.getInputStream();//获取输入流
    FileOutputStream fileOutputStream = null;//文件输出流
    if (is != null) {
     String toUser = "";
     if (emMessage.direct() == EMMessage.Direct.RECEIVE) {
      toUser = emMessage.getFrom();
     }
     File file = FileLoadUtils.createFileEm(type,fileName,toUser);
     fileOutputStream = new FileOutputStream(file);//指定文件保存路径，代码看下一步
     byte[] buf = new byte[1024];
     int ch;
     while ((ch = is.read(buf)) != -1) {
      fileOutputStream.write(buf, 0, ch);//将获取到的流写入文件中
     }
    }
    if (fileOutputStream != null) {
     fileOutputStream.flush();
     fileOutputStream.close();
    }
    if (type.equals("4")) {
     String thum = FileLoadUtils.getThumnailPath(emMessage.getFrom(),((EMVideoMessageBody)emMessage.getBody()).getLocalUrl());
     Log.e(TAG,"downLoad thum="+thum);
     ((EMVideoMessageBody)emMessage.getBody()).setLocalThumb(thum);
    }

    Log.d(TAG,"下载成功");
//    getActivity().runOnUiThread(new Runnable() {
//     @Override
//     public void run() {
//      Toast.makeText(getActivity(),"下载成功"+fileName,Toast.LENGTH_SHORT).show();
//     }
//    });
   } else {
    Log.d(TAG,"下载失败");
//    getActivity().runOnUiThread(new Runnable() {
//     @Override
//     public void run() {
//      Toast.makeText(getActivity(),"下载失败",Toast.LENGTH_SHORT).show();
//     }
//    });
   }
  } catch (Exception e) {
   e.printStackTrace();
  }finally {
   //最后将conn断开连接
   if (con != null) {
    con.disconnect();
    con = null;
   }
  }
 }

 private void getFile(EMMessage message,String type,String path, String fileName) {
  new AsyncTask<Void, Void, Void>() {
   @Override
   protected Void doInBackground(Void... params) {
    downLoad(message,type,path,fileName);
    return null;
   }

   @Override
   protected void onPostExecute(Void result) {
    super.onPostExecute(result);
    Log.e(TAG,"getFile"+result);
   }
  }.execute();
 }

 /*
 * 将数据导入数据库
 * */
 private void importDataBase(List<EMMessage> messages) {
  new AsyncTask<Void, Void, Void>() {
   @Override
   protected Void doInBackground(Void... params) {
    EMClient.getInstance().chatManager().importMessages(emMessages);
    return null;
   }

   @Override
   protected void onPostExecute(Void result) {
    super.onPostExecute(result);
    handler.postDelayed(new Runnable() {
     @Override
     public void run() {
      setLisener();
      hideWaitDialog();
     }
    },3000);

    Log.e(TAG,"importMessages"+result);
   }
  }.execute();
 }

 /*
 * 附加功能，语音电话和视频电话
 * 增加了发送企业名片的功能
 * */
 @Override
 protected void registerExtendMenuItem() {
  //use the menu in base class
  super.registerExtendMenuItem();
  //extend menu items
  inputMenu.registerExtendMenuItem(R.string.attach_video, R.drawable.em_chat_video_selector, ITEM_VIDEO, extendMenuItemClickListener);
  inputMenu.registerExtendMenuItem(R.string.attach_file, R.drawable.em_chat_file_selector, ITEM_FILE, extendMenuItemClickListener);
  if(chatType == Constant.CHATTYPE_SINGLE){
   inputMenu.registerExtendMenuItem(R.string.attach_voice_call, R.drawable.em_chat_voice_call_selector, ITEM_VOICE_CALL, extendMenuItemClickListener);
   inputMenu.registerExtendMenuItem(R.string.attach_video_call, R.drawable.em_chat_video_call_selector, ITEM_VIDEO_CALL, extendMenuItemClickListener);
   inputMenu.registerExtendMenuItem("企业名片", R.drawable.em_chat_video_call_selector, ITEM_OFFICE_CARD, extendMenuItemClickListener);
  } else if (chatType == Constant.CHATTYPE_GROUP) { // 音视频会议
   inputMenu.registerExtendMenuItem(R.string.voice_and_video_conference, R.drawable.em_chat_video_call_selector, ITEM_CONFERENCE_CALL, extendMenuItemClickListener);
//   inputMenu.registerExtendMenuItem(R.string.title_live, R.drawable.em_chat_video_call_selector, ITEM_LIVE, extendMenuItemClickListener);
  }
 }

 /*
 * 点击附加功能
 *
 * */
 @Override
 public boolean onExtendMenuItemClick(int itemId, View view) {
  switch (itemId) {
  case ITEM_VIDEO:
   Log.e(TAG,"onExtendMenuItemClick ITEM_VIDEO");
   Intent intent = new Intent(getActivity(), ImageGridActivity.class);
   startActivityForResult(intent, REQUEST_CODE_SELECT_VIDEO);
   break;
  ……

  case ITEM_OFFICE_CARD:
   Log.e(TAG,"onExtendMenuItemClick ITEM_OFFICE_CARD");
   startOfficeCard();
   break;
  default:
   break;
  }
  //keep exist extend menu
  return false;
 }

 /*
 * 获取企业详情
 * 增加了发送企业名片的功能
 * */
 private void startOfficeCard() {
  HashMap<String, Object> baseParam = WebFrontUtil.getBaseParam();
  baseParam.put("id", SavePreferences.getString(Const.OFFICE_ID));
  OkHttpUtil.post(TAG, WebApi.PUNISH_OFFICE_DETAIL, baseParam, new StringCallback() {
   @Override
   public void onError(Call call, Exception e, int id) {
    Log.e(TAG,"startOfficeCard e="+e);
   }
   @Override
   public void onResponse(String response, int id) {
    Log.e(TAG,"startOfficeCard response="+response);
    try {
     JSONObject object = new JSONObject(response);
     Gson gson = new Gson();
     if ((int)object.get("code") == 200) {
      JSONObject object1 = object.getJSONObject("data");

      OfficeBean officeBean = gson.fromJson(object1.toString(),OfficeBean.class);
      String content = "officeId:"+officeBean.getId()+",公司名称:"+officeBean.getName()+",地址:"+officeBean.getAddr()+",联系电话:"+officeBean.getOfficeTel();
      EMMessage message = EMMessage.createTxtSendMessage(content, toChatUsername);

      message.setAttribute("is_office",true);
      sendMessage(message);
     }
    } catch (JSONException e) {
     e.printStackTrace();
    }
   }
  });
 }

 /**
  * chat row provider
  * 发送企业名片时，修改过此处，否则还是文本格式
  *
  */
 private final class CustomChatRowProvider implements EaseCustomChatRowProvider {
  @Override
  public int getCustomChatRowTypeCount() {
   //here the number is the message type in EMMessage::Type
   //which is used to count the number of different chat row
   return 14;
  }

  @Override
  public int getCustomChatRowType(EMMessage message) {
   if(message.getType() == EMMessage.Type.TXT){
    //voice call
    if (message.getBooleanAttribute(Constant.MESSAGE_ATTR_IS_VOICE_CALL, false)){
     return message.direct() == EMMessage.Direct.RECEIVE ? MESSAGE_TYPE_RECV_VOICE_CALL : MESSAGE_TYPE_SENT_VOICE_CALL;
    }else if (message.getBooleanAttribute(Constant.MESSAGE_ATTR_IS_VIDEO_CALL, false)){
     //video call
     return message.direct() == EMMessage.Direct.RECEIVE ? MESSAGE_TYPE_RECV_VIDEO_CALL : MESSAGE_TYPE_SENT_VIDEO_CALL;
    }
     //messagee recall
    else if(message.getBooleanAttribute(Constant.MESSAGE_TYPE_RECALL, false)){
     return MESSAGE_TYPE_RECALL;
    } else if (!"".equals(message.getStringAttribute(Constant.MSG_ATTR_CONF_ID,""))) {
     return MESSAGE_TYPE_CONFERENCE_INVITE;
    } else if (Constant.OP_INVITE.equals(message.getStringAttribute(Constant.EM_CONFERENCE_OP, ""))) {
     return MESSAGE_TYPE_LIVE_INVITE;
    }else if (message.getBooleanAttribute("is_office",false)) {
     return message.direct() == EMMessage.Direct.RECEIVE? MESSAGE_TYPE_RECV_CARD: MESSAGE_TYPE_SEND_CARD;
    }
   }
   return 0;
  }

  @Override
  @Override
  public EaseChatRowPresenter getCustomChatRow(EMMessage message, int position, BaseAdapter adapter) {
   if(message.getType() == EMMessage.Type.TXT){
    // voice call or video call
    if (message.getBooleanAttribute(Constant.MESSAGE_ATTR_IS_VOICE_CALL, false) ||
     message.getBooleanAttribute(Constant.MESSAGE_ATTR_IS_VIDEO_CALL, false)){
     EaseChatRowPresenter presenter = new EaseChatVoiceCallPresenter();
     return presenter;
    }
    if (message.getBooleanAttribute("is_office",false)) {
     Log.e(TAG,"getCustomChatRow is_office");
     EaseChatRowPresenter presenter = new EaseChatCardPresenter();
     return presenter;
    }
    //recall message
    else if(message.getBooleanAttribute(Constant.MESSAGE_TYPE_RECALL, false)){
     EaseChatRowPresenter presenter = new EaseChatRecallPresenter();
     return presenter;
    } else if (!"".equals(message.getStringAttribute(Constant.MSG_ATTR_CONF_ID,""))) {
     return new ChatRowConferenceInvitePresenter();
    } else if (Constant.OP_INVITE.equals(message.getStringAttribute(Constant.EM_CONFERENCE_OP, ""))) {
     return new ChatRowLivePresenter();
    }
   }
   return null;
  }

 }

 private Dialog mWaitDialog;
 public Dialog showWaitDialog(String text) {
  if (mWaitDialog == null) {
   mWaitDialog = DialogManager.getWaitDialog(getActivity(), text);
  }
  if (mWaitDialog != null) {
   TextView textView = mWaitDialog.findViewById(R.id.tv_message);
   textView.setText(text);
   mWaitDialog.show();
  }
  return mWaitDialog;
 }

 public void hideWaitDialog() {
  try {
   if (mWaitDialog != null) {
    mWaitDialog.dismiss();
   }
   mWaitDialog = null;
  } catch (Exception ex) {
   ex.printStackTrace();
  }
 }
}

2. EaseChatFragment.java: 发送消息，加载更多，定义了发送接口，以便activity页面调用；

public class EaseChatFragment extends EaseBaseFragment implements EMMessageListener {

 ……
 ……

 protected void setRefreshLayoutListener() {
  swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {

   @Override
   public void onRefresh() {
    handler.postDelayed(new Runnable() {

     @Override
     public void run() {
      if (!isRoaming) {
       loadMoreLocalMessage();
      } else {
       loadMoreRoamingMessages();
      }
     }
    }, 600);
   }
  });
 }

 /**
  * 加载更多，haveMoreData的变化
  */
 private void loadMoreLocalMessage() {
  Log.e(TAG,"loadMoreLocalMessage isloading="+isloading+",haveMoreData="+haveMoreData+","+listView.getFirstVisiblePosition());
  if (listView.getFirstVisiblePosition() == 0 && !isloading && haveMoreData) {
   List<EMMessage> messages;
   try {
    messages = conversation.loadMoreMsgFromDB(conversation.getAllMessages().size() == 0 ? "" : conversation.getAllMessages().get(0).getMsgId(),
      pagesize);
   } catch (Exception e1) {
    swipeRefreshLayout.setRefreshing(false);
    return;
   }
   if (messages.size() > 0) {
    messageList.refreshSeekTo(messages.size() - 1);
    if (messages.size() != pagesize) {
     haveMoreData = false;
    }
   } else {
    haveMoreData = false;
    if (onRefreshListener != null) {
     int size = conversation.getAllMessages().size();
     Log.e(TAG,"size="+size);
     int pageNo = size/10+1;
     onRefreshListener.refresh(pageNo);
    }
   }

   isloading = false;

  } else {
   Toast.makeText(getActivity(), getResources().getString(R.string.no_more_messages),
     Toast.LENGTH_SHORT).show();
  }
  swipeRefreshLayout.setRefreshing(false);
 }

 ……

 /**
  * 发送消息，并调用向本地服务器发送消息的接口
  */
 protected void sendMessage(EMMessage message){
  if (message == null) {
   return;
  }
  Log.e(TAG,"sendMessage username="+message.getUserName()+",to="+message.getTo()+",from="+message.getFrom()
    +",status="+message.status()+",direct="+message.direct()+",keySet="+message.ext().keySet()
    +",type="+message.getType()+",MsgId="+message.getMsgId()
    +",body="+message.getBody().toString());
  if(chatFragmentHelper != null){
   //set extension
   chatFragmentHelper.onSetMessageAttributes(message);
  }
  if (chatType == EaseConstant.CHATTYPE_GROUP){
   message.setChatType(ChatType.GroupChat);
  }else if(chatType == EaseConstant.CHATTYPE_CHATROOM){
   message.setChatType(ChatType.ChatRoom);
  }

  message.setMessageStatusCallback(messageStatusCallback);

  // Send message.
  EMClient.getInstance().chatManager().sendMessage(message);
  //调用向本地服务器发送消息的接口
  if (onClickSendListener != null) {
   onClickSendListener.onSendClick(message);
  }
  //refresh ui
  if(isMessageListInited) {
   messageList.refreshSelectLast();
  }
 }

 /**
  * 向本地服务器发送消息，需要在ChatActivity中调用
  */
 public OnClickSendListener onClickSendListener;
 public void setOnItemClickListener(OnClickSendListener onClickBottomListener) {
  this.onClickSendListener = onClickBottomListener;
 }
 public interface OnClickSendListener{
  /**
   * 发送消息事件
   */
  public void onSendClick(EMMessage message);
 }

 /**
  * 下拉加载，在ChatFragment中调用
  */
 public OnRefresh1Listener onRefreshListener;
 public void setOnRefresh1Listener(OnRefresh1Listener onClickBottomListener) {
  this.onRefreshListener = onClickBottomListener;
 }
 public interface OnRefresh1Listener{
  /**
   * 下拉加载事件
   */
  public boolean refresh(int page);
}

3. ChatActivity.java：调用fragment的发送接口，以向本地服务器发送消息；

public class ChatActivity extends BaseActivity{
 ……
 @Override
 protected void onCreate(Bundle arg0) {
  super.onCreate(arg0);
  setContentView(R.layout.em_activity_chat);
  activityInstance = this;
  //get user id or group id
  toChatUsername = getIntent().getExtras().getString("userId");
  //use EaseChatFratFragment
  chatFragment = new ChatFragment();
  //pass parameters to chat fragment
  chatFragment.setArguments(getIntent().getExtras());
  getSupportFragmentManager().beginTransaction().add(R.id.container, chatFragment).commit();
  chatFragment.setOnItemClickListener(new EaseChatFragment.OnClickSendListener() {
   @Override
   public void onSendClick(EMMessage message) {
    sendRemoteMsg(message);
   }
  });

 }

 ……
 private void sendRemoteMsg(EMMessage message) {
  Map<String, String> baseParam = new HashMap<>();
  baseParam.put("id","");
  baseParam.put("msgId",message.getMsgId());
  baseParam.put("sendUser",message.getFrom());
  baseParam.put("receiveUser",message.getTo());
  Log.e(TAG,"receiveType="+message.getChatType().name());
  String chatType ="";

  if (message.getChatType() == EMMessage.ChatType.Chat) {
   chatType = "0";
  } else {
   chatType = "1";
  }
  baseParam.put("receiveType",chatType);
  int type = 1;
  File file = null,file1 = null;
  int size = 0;

  Log.e(TAG,"type="+message.getType().name());
  if (message.getType().name().toString().equals("TXT")) {
   if (message.getBooleanAttribute("is_office",false)) {
    type = 9;
   } else {
    type = 1;
   }
   EMTextMessageBody emTextMessageBody = ((EMTextMessageBody) message.getBody());
   baseParam.put("message",emTextMessageBody.getMessage());
   } else if (message.getType().name().toString().equals("LOCATION")) {
   type = 2;
   baseParam.put("message",message.getBody().toString());
  } else if (message.getType().name().toString().equals("VOICE")) {
   type = 3;
   EMVoiceMessageBody emVoiceMessageBody = ((EMVoiceMessageBody) message.getBody());
   String filePath = emVoiceMessageBody.getLocalUrl();
   file = new File(filePath);

   baseParam.put("size",emVoiceMessageBody.getLength()+"");
   baseParam.put("message",message.getBody().toString());
  } else if (message.getType().name().toString().equals("VIDEO")) {
   type = 4;
   EMVideoMessageBody emVideoMessageBody = ((EMVideoMessageBody) message.getBody());
   String filePath = emVideoMessageBody.getLocalUrl();
   file = new File(filePath);
   baseParam.put("size",emVideoMessageBody.getDuration()+"");
   String thumbnail = emVideoMessageBody.getLocalThumb();
   Log.e(TAG,"thumbnail="+thumbnail+","+emVideoMessageBody.getLocalThumb()+",size="+emVideoMessageBody.getDuration()+","+emVideoMessageBody.getVideoFileLength());
   file1 = new File(thumbnail);
   baseParam.put("message",message.getBody().toString());
  } else if(message.getType().name().toString().equals("IMAGE")) {
   type = 5;
   String filePath = ((EMImageMessageBody) message.getBody()).getLocalUrl();
   file = new File(filePath);
   baseParam.put("message",message.getBody().toString());
  } else if (message.getType().name().toString().equals("FILE")) {
   type = 6;
   String filePath = ((EMFileMessageBody) message.getBody()).getLocalUrl();
   file = new File(filePath);
   baseParam.put("message",message.getBody().toString());
  } else {
   type = 1;
   baseParam.put("message",message.getBody().toString());
  }
  baseParam.put("mesType",String.valueOf(type));
  SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  baseParam.put("sendTime",format.format(new Date(message.getMsgTime())));

  Log.e(TAG,"baseParam="+ baseParam);

  FileLoadUtils.postFile(WebApi.MSN_CHAT_SAVE, baseParam, "mesFile", file,"thuFile",file1, new Callback() {
   @Override
   public void onFailure(Call call, IOException e) {
    Log.e(TAG,"sendRemoteMsg e="+ e);
   }

   @Override
   public void onResponse(Call call, Response response) throws IOException {
    String result = FileLoadUtils.getResponseBody(response);
    Log.e(TAG,"sendRemoteMsg response="+ result+","+response);
   }
  });

 }
}

4. EMMessageUtils.java： ChatFragment.java中获取聊天记录后，将各种类型的聊天记录转化成相应的格式：

public class EMMessageUtils {
 private static final String TAG = "EMMessageUtils";

 public static EMMessage createImageSendMessage(String fromUser, String var0, boolean var1, String var2) {
  File file = new File(var0);
  String path = "";
  if (!file.exists()) {
   String fileName = file.getName();
   path = FileLoadUtils.BASE_PATH + fromUser + "/image/"+fileName;
   file = new File(path);
  } else {
   path = var0;
  }
  EMMessage var3 = EMMessage.createSendMessage(EMMessage.Type.IMAGE);
  var3.setTo(var2);
  EMImageMessageBody var4 = new EMImageMessageBody(file);
  var4.setSendOriginalImage(var1);
  var3.addBody(var4);
  return var3;
 }

 public static EMMessage createVoiceSendMessage(String var0, int var1, String var2) {
  File file = new File(var0);
  File pathFile = new File(file.getParent());
  if (!pathFile.exists()) {
   pathFile.mkdirs();
  }
  if (!file.exists()) {
   try {
    file.createNewFile();
   } catch (IOException e) {
    e.printStackTrace();
   }
  }
  EMMessage var3 = EMMessage.createSendMessage(EMMessage.Type.VOICE);
  EMVoiceMessageBody var4 = new EMVoiceMessageBody(file, var1);
  var3.addBody(var4);
  var3.setTo(var2);
  return var3;
//  }
 }

 public static EMMessage createVideoSendMessage(String fromUser,String var0, String var1, int var2, String var3) {
  File file = new File(var0);
  String path = "";
  if (!file.exists()) {
   String fileName = file.getName();
   path = FileLoadUtils.BASE_PATH + fromUser + "/video/"+fileName;
   file = new File(path);
  } else {
   path = var0;
  }

  Log.e(TAG,"createVideoSendMessage path="+path);
  EMMessage var5 = EMMessage.createSendMessage(EMMessage.Type.VIDEO);
  var5.setTo(var3);
  EMVideoMessageBody var6 = new EMVideoMessageBody(path, var1, var2, file.length());
  var5.addBody(var6);
  return var5;
 }

 /*
 * 修改SDK中的创建文件类型的消息，改成使用自己的路径
 * */
 public static EMMessage createFileSendMessage(String fromUser,String var0, String var1) {
  File file = new File(var0);
  Log.e(TAG,"createFileSendMessage var0="+var0);
  String path = "";
  if (!file.exists()) {
   String fileName = file.getName();
   path = FileLoadUtils.BASE_PATH + fromUser + "/file/"+fileName;
   file = new File(path);
  } else {
   path = var0;
  }
  EMMessage var3 = EMMessage.createSendMessage(EMMessage.Type.FILE);
  var3.setTo(var1);
  EMNormalFileMessageBody var4 = new EMNormalFileMessageBody(file);
  var3.addBody(var4);
  return var3;
 }

 /*
 * 创建视频类型的消息
 * */
 public static EMMessage createVideoMsg(RemoteMessage remoteMessage) {
  EMMessage message = null;
  int size = 0;
  if (!StringUtils.isEmpty(remoteMessage.getSize())) {
   size = Integer.valueOf(remoteMessage.getSize());
  }
  String msgStr = remoteMessage.getMessage();
  String[] msgArr = msgStr.split(",");
  String localurl="";
  String thumbnailUrl= "";

  for (int j=0;j<msgArr.length;j++) {
   String[] lat = msgArr[j].split(":");
   if (lat[0].contains("localUrl")) {
    localurl = lat[1].trim();
   } else if (lat[0].equals("thumbnailUrl")) {
    if (lat.length>1) {
     thumbnailUrl = lat[1].trim();
    }
   }
  }

  message = createVideoSendMessage(remoteMessage.getSendUser(),localurl, remoteMessage.getThuImg(), size, remoteMessage.getReceiveUser());
  ((EMVideoMessageBody)message.getBody()).setRemoteUrl(remoteMessage.getFileUrl());
  return message;
 }

 /*
 * 创建地址类型的消息
 * */
 public static EMMessage createLocationMsg(RemoteMessage remoteMessage) {
  EMMessage message = null;
  String locStr = remoteMessage.getMessage();
  String[] locArr = locStr.split(",");
  double latitude=0,longitude=0;
  String locationAddress="";
  for (int j=0;j<locArr.length;j++) {
   String[] lat = locArr[j].split(":");
   if (lat[0].equals("location")) {

    locationAddress = lat[1];
   } else if (lat[0].equals("lat")) {
    latitude = Double.valueOf(lat[1]);
   } else if (lat[0].equals("lng")) {
    longitude = Double.valueOf(lat[1]);
   }
  }
  message = EMMessage.createLocationSendMessage(latitude, longitude, locationAddress, remoteMessage.getReceiveUser());
  return message;
 }
}

5. FileLoadUtils.java：向本地服务器上传数据

public class FileLoadUtils {
 private static final String TAG = "FileLoadUtils";

 public FileLoadUtils() {

 }

 ……

 /**
  * 上传消息到服务器，表单形式上传
 */
 public static void postFile(final String url, final Map<String, String> map,String imgStr, File file,String param1,File file1, Callback callback) {
  OkHttpClient client = new OkHttpClient();
  // form 表单形式上传
  MultipartBody.Builder requestBody = new MultipartBody.Builder().setType(MultipartBody.FORM);
  if (file != null) {
   Log.e("FileLoadUtils","file="+file.getPath()+","+file.getName());
   // MediaType.parse() 里面是上传的文件类型。
   RequestBody body = RequestBody.create(MediaType.parse("image/*"), file);
   String filename = file.getName();
   // 参数分别为， 请求key ，文件名称 ， RequestBody
   requestBody.addFormDataPart(imgStr, filename, body);
  }

  if (file1 != null) {
   Log.e("FileLoadUtils","file="+file1.getPath()+","+file1.getName());
   // MediaType.parse() 里面是上传的文件类型。
   RequestBody body = RequestBody.create(MediaType.parse("image/*"), file1);
   String filename = file1.getName();
   // 参数分别为， 请求key ，文件名称 ， RequestBody
   requestBody.addFormDataPart(param1, filename, body);
  }

  if (map != null) {
   // map 里面是请求中所需要的 key 和 value
   Set<Map.Entry<String, String>> entries = map.entrySet();
   for (Map.Entry entry : entries) {
    String key = String.valueOf(entry.getKey());
    String value = String.valueOf(entry.getValue());
    Log.d("HttpUtils", "key=="+key+",value=="+value);
    requestBody.addFormDataPart(key,value);
   }
  }

  String token = SavePreferences.getString(Const.TOKEN_KEY);
  Request request = new Request.Builder().url(url).header("token", token).post(requestBody.build()).build();
  // readTimeout("请求超时时间" , 时间单位);
  client.newBuilder().readTimeout(5000, TimeUnit.MILLISECONDS).build()
    .newCall(request).enqueue(callback);

 }

 /**
  * 获取文件保存地址，toUser指发送消息过来的好友名称
 */
 public static File createFileEm(String type,String FileName,String toUser) {
  String path = null;
  if (toUser != null && !toUser.equals("") ) {

   if (type.equals("3")) {
    path = BASE_PATH + toUser + "/voice/" ;
   } else if (type.equals("4")) {
    path = BASE_PATH + toUser + "/video/";
   }else if (type.equals("6")) {
    path = BASE_PATH + toUser + "/file/";
   } else {
    path = BASE_PATH + toUser + "/image/";
   }
  } else {
   if (type.equals("3")) {
    path = PathUtil.getInstance().getVoicePath() + "/" ;
   } else if (type.equals("4")) {
    path = PathUtil.getInstance().getVideoPath() + "/";
   }else if (type.equals("6")) {
    path = PathUtil.getInstance().getFilePath() + "/";
   } else {
    path = PathUtil.getInstance().getImagePath() + "/";
   }
  }

  File file = new File(path);
  /**
   *如果文件夹不存在就创建
   */
  if (!file.exists()) {
   file.mkdirs();
  }
  return new File(path, FileName);
 }

 /**
  * 获取视频的缩略图路径
 */
 public static String getThumnailPath(String fromUser,String videoPath) {
  String fileName = "thvideo" + System.currentTimeMillis();
  createFileEm("5",fileName,fromUser);
//  File file = new File(getMSNBasePath("5",fromUser), fileName);
  File file = createFileEm("5",fileName,fromUser);
  try {
   FileOutputStream fos = new FileOutputStream(file);
   Bitmap ThumbBitmap = ThumbnailUtils.createVideoThumbnail(videoPath, 3);
   ThumbBitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);
   fos.close();
  } catch (Exception e) {
   e.printStackTrace();
  }
  return file.getAbsolutePath();
}

6. 发送企业名片后的显示：

发送完信息后，有个UI刷新的过程messageList.refreshSelectLast();－－－－> messageAdapter.refreshSelectLast();

EaseMessageAdapter.java

public class EaseMessageAdapter extends BaseAdapter{
 private final static String TAG = "EaseMessageAdapter";

 private Context context;

 private static final int HANDLER_MESSAGE_REFRESH_LIST = 0;
 private static final int HANDLER_MESSAGE_SELECT_LAST = 1;
 private static final int HANDLER_MESSAGE_SEEK_TO = 2;

 private static final int MESSAGE_TYPE_RECV_TXT = 0;
 private static final int MESSAGE_TYPE_SENT_TXT = 1;
 private static final int MESSAGE_TYPE_SENT_IMAGE = 2;
 private static final int MESSAGE_TYPE_SENT_LOCATION = 3;
 private static final int MESSAGE_TYPE_RECV_LOCATION = 4;
 private static final int MESSAGE_TYPE_RECV_IMAGE = 5;
 private static final int MESSAGE_TYPE_SENT_VOICE = 6;
 private static final int MESSAGE_TYPE_RECV_VOICE = 7;
 private static final int MESSAGE_TYPE_SENT_VIDEO = 8;
 private static final int MESSAGE_TYPE_RECV_VIDEO = 9;
 private static final int MESSAGE_TYPE_SENT_FILE = 10;
 private static final int MESSAGE_TYPE_RECV_FILE = 11;
 private static final int MESSAGE_TYPE_SENT_EXPRESSION = 12;
 private static final int MESSAGE_TYPE_RECV_EXPRESSION = 13;
 private static final int MESSAGE_TYPE_SEND_CARD = 14;
 private static final int MESSAGE_TYPE_RECV_CARD = 15;

 private EMConversation conversation;
 EMMessage[] messages = null;

 private String toChatUsername;

 private MessageListItemClickListener itemClickListener;
 private EaseCustomChatRowProvider customRowProvider;

 private ListView listView;
 private EaseMessageListItemStyle itemStyle;

 public EaseMessageAdapter(Context context, String username, int chatType, ListView listView) {
 this.context = context;
 this.listView = listView;
 toChatUsername = username;
 this.conversation = EMClient.getInstance().chatManager().getConversation(username, EaseCommonUtils.getConversationType(chatType), true);
 }

 Handler handler = new Handler() {
 private void refreshList() {
 // you should not call getAllMessages() in UI thread
 // otherwise there is problem when refreshing UI and there is new message arrive
 java.util.List<EMMessage> var = conversation.getAllMessages();
 Log.e(TAG,"EMMessage.size="+var.size());
 messages = var.toArray(new EMMessage[var.size()]);
   conversation.markAllMessagesAsRead();
 notifyDataSetChanged();
 }

  @Override
 public void handleMessage(android.os.Message message) {
 switch (message.what) {
 case HANDLER_MESSAGE_REFRESH_LIST:
 refreshList();
 break;
 case HANDLER_MESSAGE_SELECT_LAST:
    if (messages != null && messages.length > 0) {
     listView.setSelection(messages.length - 1);
    }

    break;
   case HANDLER_MESSAGE_SEEK_TO:
    int position = message.arg1;
    listView.setSelection(position);
    break;
 default:
 break;
 }
 }
 };

 public void refresh() {
 if (handler.hasMessages(HANDLER_MESSAGE_REFRESH_LIST)) {
 return;
 }
 android.os.Message msg = handler.obtainMessage(HANDLER_MESSAGE_REFRESH_LIST);
 handler.sendMessage(msg);
 }

 /**
  * refresh and select the last
  */
 public void refreshSelectLast() {
  final int TIME_DELAY_REFRESH_SELECT_LAST = 100;
  handler.removeMessages(HANDLER_MESSAGE_REFRESH_LIST);
  handler.removeMessages(HANDLER_MESSAGE_SELECT_LAST);
  handler.sendEmptyMessageDelayed(HANDLER_MESSAGE_REFRESH_LIST, TIME_DELAY_REFRESH_SELECT_LAST);
  handler.sendEmptyMessageDelayed(HANDLER_MESSAGE_SELECT_LAST, TIME_DELAY_REFRESH_SELECT_LAST);
 }

 /**
  * refresh and seek to the position
  */
 public void refreshSeekTo(int position) {
  handler.sendMessage(handler.obtainMessage(HANDLER_MESSAGE_REFRESH_LIST));
 }

 public EMMessage getItem(int position) {
 if (messages != null && position < messages.length) {
 return messages[position];
 }
 return null;
 }

 public long getItemId(int position) {
 return position;
 }

 /**
  * get count of messages
  */
 public int getCount() {
  return messages == null ? 0 : messages.length;
 }

 /**
 * get number of message type, here 14 = (EMMessage.Type) * 2
 */
 public int getViewTypeCount() {
  if(customRowProvider != null && customRowProvider.getCustomChatRowTypeCount() > 0){
   return customRowProvider.getCustomChatRowTypeCount() + 14;
  }
  return 14;
 }

 /**
 * get type of item
 */
 public int getItemViewType(int position) {
 EMMessage message = getItem(position);
 if (message == null) {
 return -1;
 }

 if(customRowProvider != null && customRowProvider.getCustomChatRowType(message) > 0){
  return customRowProvider.getCustomChatRowType(message) + 13;
 }

  if (message.getType() == EMMessage.Type.TXT) {
  if(message.getBooleanAttribute(EaseConstant.MESSAGE_ATTR_IS_BIG_EXPRESSION, false)){
   return message.direct() == EMMessage.Direct.RECEIVE ? MESSAGE_TYPE_RECV_EXPRESSION : MESSAGE_TYPE_SENT_EXPRESSION;
  }

   //企业名片
   if (message.getBooleanAttribute("is_office",false)) {
  return message.direct() == EMMessage.Direct.RECEIVE? MESSAGE_TYPE_RECV_CARD: MESSAGE_TYPE_SEND_CARD;
 }
 return message.direct() == EMMessage.Direct.RECEIVE ? MESSAGE_TYPE_RECV_TXT : MESSAGE_TYPE_SENT_TXT;
 }
  if (message.getType() == EMMessage.Type.IMAGE) {
 return message.direct() == EMMessage.Direct.RECEIVE ? MESSAGE_TYPE_RECV_IMAGE : MESSAGE_TYPE_SENT_IMAGE;

 }
 if (message.getType() == EMMessage.Type.LOCATION) {
 return message.direct() == EMMessage.Direct.RECEIVE ? MESSAGE_TYPE_RECV_LOCATION : MESSAGE_TYPE_SENT_LOCATION;
 }

  if (message.getType() == EMMessage.Type.VOICE) {
 return message.direct() == EMMessage.Direct.RECEIVE ? MESSAGE_TYPE_RECV_VOICE : MESSAGE_TYPE_SENT_VOICE;
 }
 if (message.getType() == EMMessage.Type.VIDEO) {
 return message.direct() == EMMessage.Direct.RECEIVE ? MESSAGE_TYPE_RECV_VIDEO : MESSAGE_TYPE_SENT_VIDEO;
 }

  if (message.getType() == EMMessage.Type.FILE) {
 return message.direct() == EMMessage.Direct.RECEIVE ? MESSAGE_TYPE_RECV_FILE : MESSAGE_TYPE_SENT_FILE;
 }

 return -1;// invalid
 }

 //重点
 protected EaseChatRowPresenter createChatRowPresenter(EMMessage message, int position) {
 Log.e(TAG,"createChatRowPresenter");
  if(customRowProvider != null && customRowProvider.getCustomChatRow(message, position, this) != null){
 return customRowProvider.getCustomChatRow(message, position, this);
  }

  EaseChatRowPresenter presenter = null;

  switch (message.getType()) {
  case TXT:
   if(message.getBooleanAttribute(EaseConstant.MESSAGE_ATTR_IS_BIG_EXPRESSION, false)){
 presenter = new EaseChatBigExpressionPresenter();
   }else{
    Log.e(TAG,"TXT is_office");
    if (message.getBooleanAttribute("is_office",false)) {
  Log.e(TAG,"TXT is_office true");
     presenter = new EaseChatCardPresenter();
 } else {
  presenter = new EaseChatTextPresenter();
 }
   }
   break;
  case LOCATION:
   presenter = new EaseChatLocationPresenter();
   break;
  case FILE:
   presenter = new EaseChatFilePresenter();
   break;
  case IMAGE:
   presenter = new EaseChatImagePresenter();
   break;
  case VOICE:
   presenter = new EaseChatVoicePresenter();
   break;
  case VIDEO:
   presenter = new EaseChatVideoPresenter();
   break;
  default:
   break;
  }

  return presenter;
 }

 @SuppressLint("NewApi")
 public View getView(final int position, View convertView, ViewGroup parent) {
 EMMessage message = getItem(position);

 EaseChatRowPresenter presenter = null;
 Log.e(TAG,""+message.getBooleanAttribute("is_office",false)+","+message.getBody());
 if (convertView == null) {
 presenter = createChatRowPresenter(message, position);
   convertView = presenter.createChatRow(context, message, position, this);
 convertView.setTag(presenter);
 } else {
 presenter = (EaseChatRowPresenter) convertView.getTag();
 }

 presenter.setup(message, position, itemClickListener, itemStyle);

 return convertView;
 }

 public void setItemStyle(EaseMessageListItemStyle itemStyle){
 this.itemStyle = itemStyle;
 }

 public void setItemClickListener(MessageListItemClickListener listener){
  itemClickListener = listener;
 }

 public void setCustomChatRowProvider(EaseCustomChatRowProvider rowProvider){
  customRowProvider = rowProvider;
 }
}

7. EaseChatCardPresenter.java

public class EaseChatCardPresenter extends EaseChatRowPresenter {
 private static final String TAG = "EaseChatFilePresenter";
 @Override
 protected EaseChatRow onCreateChatRow(Context cxt, EMMessage message, int position, BaseAdapter adapter) {
  return new EaseChatRowCard(cxt, message, position, adapter);
 }

 @Override
 public void onBubbleClick(EMMessage message) {
  EMTextMessageBody fileMessageBody = (EMTextMessageBody) message.getBody();
  //点击发送完后的企业名片需要的操作，还没有处理
  ……

  if (message.direct() == EMMessage.Direct.RECEIVE && !message.isAcked() && message.getChatType() == EMMessage.ChatType.Chat) {
   try {
    EMClient.getInstance().chatManager().ackMessageRead(message.getFrom(), message.getMsgId());
   } catch (HyphenateException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   }
  }
 }
}

8.EaseChatRowCard.java

public class EaseChatRowCard extends EaseChatRow{
 private static final String TAG = "EaseChatRowCard";

 protected TextView fileNameView;
 protected TextView fileSizeView;
 protected TextView fileStateView;
 protected TextView tvOfficeAddr;
 protected TextView tvOfficeTel;

 private EMTextMessageBody fileMessageBody;

 public EaseChatRowCard(Context context, EMMessage message, int position, BaseAdapter adapter) {
  super(context, message, position, adapter);
 }

 @Override
 protected void onInflateView() {
  inflater.inflate(message.direct() == EMMessage.Direct.RECEIVE ?
    R.layout.ease_row_received_card : R.layout.ease_row_sent_card, this);
 }

 @Override
 protected void onFindViewById() {
  fileNameView = (TextView) findViewById(R.id.tv_file_name);
  fileSizeView = (TextView) findViewById(R.id.tv_file_size);
  fileStateView = (TextView) findViewById(R.id.tv_file_state);
  percentageView = (TextView) findViewById(R.id.percentage);
  tvOfficeAddr = (TextView) findViewById(R.id.tv_officeAddr);
  tvOfficeTel = (TextView) findViewById(R.id.tv_officeTel);
 }

 @Override
 protected void onSetUpView() {
  fileMessageBody = (EMTextMessageBody) message.getBody();
  String content = fileMessageBody.getMessage();
  Log.e(TAG,"content="+content);
  if (message.getBooleanAttribute("is_office",false)) {
   String[] contentArr = content.split(",");
   OfficeCard card = new OfficeCard();
   card.setOfficeId(contentArr[0]);
   card.setOfficeName(contentArr[1]);
   card.setAddr(contentArr[2]);
   card.setTel(contentArr[3]);
   fileNameView.setText(card.getOfficeName());
   tvOfficeAddr.setText(card.getAddr());
   tvOfficeTel.setText(card.getTel());
  }
 }

 @Override
 protected void onViewUpdate(EMMessage msg) {
  switch (msg.status()) {
   case CREATE:
    onMessageCreate();
    break;
   case SUCCESS:
    onMessageSuccess();
    break;

   case FAIL:
    onMessageError();
    break;
   case INPROGRESS:
    onMessageInProgress();
    break;
  }
 }

 private void onMessageCreate() {
  progressBar.setVisibility(View.VISIBLE);
  if (percentageView != null)
   percentageView.setVisibility(View.INVISIBLE);
  if (statusView != null)
   statusView.setVisibility(View.INVISIBLE);
 }

 private void onMessageSuccess() {
  progressBar.setVisibility(View.INVISIBLE);
  if (percentageView != null)
   percentageView.setVisibility(View.INVISIBLE);
  if (statusView != null)
   statusView.setVisibility(View.INVISIBLE);
 }

 private void onMessageError() {
  progressBar.setVisibility(View.INVISIBLE);
  if (percentageView != null)
   percentageView.setVisibility(View.INVISIBLE);
  if (statusView != null)
   statusView.setVisibility(View.VISIBLE);
 }

 private void onMessageInProgress() {
  progressBar.setVisibility(View.VISIBLE);
  if (percentageView != null) {
   percentageView.setVisibility(View.VISIBLE);
   percentageView.setText(message.progress() + "%");
  }

  if (statusView != null)
   statusView.setVisibility(View.INVISIBLE);
 }
}

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