Esempio n. 1
0
 protected void onConversationInit() {
   conversation =
       EMClient.getInstance()
           .chatManager()
           .getConversation(toChatUsername, EaseCommonUtils.getConversationType(chatType), true);
   conversation.markAllMessagesAsRead();
   // the number of messages loaded into conversation is getChatOptions().getNumberOfMessagesLoaded
   // you can change this number
   final List<EMMessage> msgs = conversation.getAllMessages();
   int msgCount = msgs != null ? msgs.size() : 0;
   if (msgCount < conversation.getAllMsgCount() && msgCount < pagesize) {
     String msgId = null;
     if (msgs != null && msgs.size() > 0) {
       msgId = msgs.get(0).getMsgId();
     }
     conversation.loadMoreMsgFromDB(msgId, pagesize - msgCount);
   }
 }
  protected void onConversationInit() {
    // 获取当前conversation对象

    conversation =
        EMClient.getInstance()
            .chatManager()
            .getConversation(toChatUsername, EaseCommonUtils.getConversationType(chatType), true);
    // 把此会话的未读数置为0
    conversation.markAllMessagesAsRead();
    // 初始化db时,每个conversation加载数目是getChatOptions().getNumberOfMessagesLoaded
    // 这个数目如果比用户期望进入会话界面时显示的个数不一样,就多加载一些
    final List<EMMessage> msgs = conversation.getAllMessages();
    int msgCount = msgs != null ? msgs.size() : 0;
    if (msgCount < conversation.getAllMsgCount() && msgCount < pagesize) {
      String msgId = null;
      if (msgs != null && msgs.size() > 0) {
        msgId = msgs.get(0).getMsgId();
      }
      conversation.loadMoreMsgFromDB(msgId, pagesize - msgCount);
    }
  }
  @Override
  public View getView(int position, View convertView, ViewGroup parent) {
    if (convertView == null) {
      convertView =
          LayoutInflater.from(getContext()).inflate(R.layout.ease_row_chat_history, parent, false);
    }
    ViewHolder holder = (ViewHolder) convertView.getTag();
    if (holder == null) {
      holder = new ViewHolder();
      holder.name = (TextView) convertView.findViewById(R.id.name);
      holder.unreadLabel = (TextView) convertView.findViewById(R.id.unread_msg_number);
      holder.message = (TextView) convertView.findViewById(R.id.message);
      holder.time = (TextView) convertView.findViewById(R.id.time);
      holder.avatar = (ImageView) convertView.findViewById(R.id.avatar);
      holder.msgState = convertView.findViewById(R.id.msg_state);
      holder.list_itease_layout =
          (RelativeLayout) convertView.findViewById(R.id.list_itease_layout);
      convertView.setTag(holder);
    }
    holder.list_itease_layout.setBackgroundResource(R.drawable.ease_mm_listitem);

    // 获取与此用户/群组的会话
    EMConversation conversation = getItem(position);
    // 获取用户username或者群组groupid
    String username = conversation.getUserName();

    if (conversation.getType() == EMConversationType.GroupChat) {
      // 群聊消息,显示群聊头像
      holder.avatar.setImageResource(R.drawable.ease_group_icon);
      EMGroup group = EMClient.getInstance().groupManager().getGroup(username);
      holder.name.setText(group != null ? group.getGroupName() : username);
    } else if (conversation.getType() == EMConversationType.ChatRoom) {
      holder.avatar.setImageResource(R.drawable.ease_group_icon);
      EMChatRoom room = EMClient.getInstance().chatroomManager().getChatRoom(username);
      holder.name.setText(
          room != null && !TextUtils.isEmpty(room.getName()) ? room.getName() : username);
    } else {
      EaseUserUtils.setUserAvatar(getContext(), username, holder.avatar);
      EaseUserUtils.setUserNick(username, holder.name);
    }

    if (conversation.getUnreadMsgCount() > 0) {
      // 显示与此用户的消息未读数
      holder.unreadLabel.setText(String.valueOf(conversation.getUnreadMsgCount()));
      holder.unreadLabel.setVisibility(View.VISIBLE);
    } else {
      holder.unreadLabel.setVisibility(View.INVISIBLE);
    }

    if (conversation.getAllMsgCount() != 0) {
      // 把最后一条消息的内容作为item的message内容
      EMMessage lastMessage = conversation.getLastMessage();
      holder.message.setText(
          EaseSmileUtils.getSmiledText(
              getContext(), EaseCommonUtils.getMessageDigest(lastMessage, (this.getContext()))),
          BufferType.SPANNABLE);

      holder.time.setText(DateUtils.getTimestampString(new Date(lastMessage.getMsgTime())));
      if (lastMessage.direct() == EMMessage.Direct.SEND
          && lastMessage.status() == EMMessage.Status.FAIL) {
        holder.msgState.setVisibility(View.VISIBLE);
      } else {
        holder.msgState.setVisibility(View.GONE);
      }
    }

    // 设置自定义属性
    holder.name.setTextColor(primaryColor);
    holder.message.setTextColor(secondaryColor);
    holder.time.setTextColor(timeColor);
    if (primarySize != 0) holder.name.setTextSize(TypedValue.COMPLEX_UNIT_PX, primarySize);
    if (secondarySize != 0) holder.message.setTextSize(TypedValue.COMPLEX_UNIT_PX, secondarySize);
    if (timeSize != 0) holder.time.setTextSize(TypedValue.COMPLEX_UNIT_PX, timeSize);

    return convertView;
  }