tencent cloud

const data = '正在输入中';
const createCustomMessageRes =
      await TencentImSDKPlugin.v2TIMManager
          .getMessageManager()
          .createCustomMessage(data);
// 发送消息时，需要把needReadReceipt设置为true
  TencentImSDKPlugin.v2TIMManager.getMessageManager().sendMessage(id: createCustomMessageRes.data.id, receiver: "", groupID: "groupID",onlineUserOnly: true,needReadReceipt: true);

const sendMessageReadReceipts = await TencentImSDKPlugin.v2TIMManager
  .getMessageManager()
  .sendMessageReadReceipts(["msgids"]);
if (sendMessageReadReceipts.code == 0) {
  // 成功
} else {
  // 失败
}

onRecvMessageReadReceipts: (receiptList) {
      receiptList.forEach((element) {
        element.groupID;  // 群id
        element.msgID; // 已读回执消息 ID
        element.readCount;// 群消息最新已读数
        element.unreadCount;// 群消息最新未读数
        element.userID; //  C2C 消息对方 ID
      });
},

const getMessageReadReceipts = await  TencentImSDKPlugin.v2TIMManager.getMessageManager().getMessageReadReceipts([]);
  if(getMessageReadReceipts.code == 0){
    getMessageReadReceipts.data.forEach((element) {
      // 解析群消息已读回执
      element.groupID;
      element.msgID;
      element.readCount;
      element.timestamp;
      element.unreadCount;
      element.userID;
    });
  }

const messageID = "";
const filter =
  GetGroupMessageReadMemberListFilter.V2TIM_GROUP_MESSAGE_READ_MEMBERS_FILTER_READ;
const getGroupMessageReadMemberList = await TencentImSDKPlugin.v2TIMManager
  .getMessageManager()
  .getGroupMessageReadMemberList(messageID, filter);

if (getGroupMessageReadMemberList.code == 0) {
  // 获取群消息已读未读群成员列表
  getGroupMessageReadMemberList.data.isFinished;
  getGroupMessageReadMemberList.data.memberInfoList;
  getGroupMessageReadMemberList.data.nextSeq;
}