Conversation Group

    // Create a conversation group
    V2TimValueCallback<List<V2TimConversationOperationResult>>
        createConversationGroupRes = await TencentImSDKPlugin.v2TIMManager
            .getConversationManager()
            .createConversationGroup(
                groupName: "groupName",// Name of the created conversation group
                conversationIDList: []);// List of conversation IDs to be added to the conversation group created
    if (createConversationGroupRes.code == 0) {
      // Creation configured successfully
      createConversationGroupRes.data?.forEach((element) {
        element.conversationID; // ID of the conversation to be added
        element.resultCode; // Operation result error code of the conversation
        element.resultInfo; // Operation result description of the conversation
      });
    }

    // Delete the conversation group
    V2TimCallback deleteConversationGroupRes = await TencentImSDKPlugin
        .v2TIMManager
        .getConversationManager()
        .deleteConversationGroup(groupName: "groupName");// Name of the conversation group to be deleted
    if (deleteConversationGroupRes.code == 0) {
      // Deleted successfully
    }

    // Rename a conversation group
    V2TimCallback renameConversationGroupRes = await TencentImSDKPlugin
        .v2TIMManager
        .getConversationManager()
        .renameConversationGroup(
         oldName: "oldName",// Name of the conversation group to rename
         newName: "newName");// New name of the conversation group
    if (renameConversationGroupRes.code == 0) {
      // Renamed successfully
    }

    // Get the list of conversation groups
    V2TimValueCallback<List<String>> getConversationGroupListDataRes =
        await TencentImSDKPlugin.v2TIMManager
            .getConversationManager()
            .getConversationGroupList();
    if (getConversationGroupListDataRes.code == 0) {
      // Queried successfully
      getConversationGroupListDataRes.data?.forEach((element) {
        element;// Name of the conversation group
      });
    }

    // Get the conversation list
    V2TimConversationListFilter filter = V2TimConversationListFilter(
        conversationType: 0, // Conversation type
        nextSeq: 0,// Pull cursor
        count: 10,// Pull count
        markType: 0,// Conversation mark type
        groupName: "groupName");// Name of the pulled group
    // Advanced API for getting the conversation list
    V2TimValueCallback<V2TimConversationResult> getConversationListByFilterRes =
        await TencentImSDKPlugin.v2TIMManager
            .getConversationManager()
            .getConversationListByFilter(filter: filter);// Conversation list filter
    if (getConversationListByFilterRes.code == 0) {
      // Pulled successfully
      bool? isFinished =getConversationListByFilterRes.data?.isFinished; //Whether the list is fully pulled
      String? nextSeq =getConversationListByFilterRes.data?.nextSeq; // Cursor for the subsequent paged pull
      List<V2TimConversation?>? conversationList =getConversationListByFilterRes.data?.conversationList; // List of conversations pulled this time
      // If more conversations need to be pulled, use the returned `nextSeq` to continue pulling until `isFinished` is `true`.
      if (!isFinished!) {
        V2TimConversationListFilter nextFilter = V2TimConversationListFilter(
            conversationType: 0,
            nextSeq: int.parse(nextSeq!),// Use the returned `nextSeq` to continue pulling until `isFinished` is `true`.
            count: 10,
            markType: 0,
            groupName: "groupName");
        V2TimValueCallback<V2TimConversationResult> nextConversationListRes =
            await TencentImSDKPlugin.v2TIMManager
                .getConversationManager()
                .getConversationListByFilter(
                    filter: nextFilter); 
      }

      getConversationListByFilterRes.data?.conversationList?.forEach((element) {
        element
            ?.conversationID; // Unique conversation ID. It is in the format of `c2c_userID` for a one-to-one chat or `group_groupID` for a group chat.
        element?.draftText; // Draft message
        element?.draftTimestamp; // Draft editing time. It is automatically generated when a draft is set.
        element?.faceUrl; // Displayed conversation profile photo. It is the group profile photo for a group chat or the profile photo of the message receiver for a one-to-one chat.
        element?.groupAtInfoList; // List of @ information in the group conversation. Generally, it is used to display the notifications of "someone@me" and "@all".
        element?.groupID; // ID of the current group. If the conversation type is group chat, `groupID` is the ID of the current group. Otherwise, it is `null`.
        element?.groupType; // Type of the current group. If the conversation type is group chat, `groupType` is the type of the current group. Otherwise, it is `null`.
        element?.isPinned; // Whether the conversation is pinned to the top
        element?.lastMessage; // Last message in the conversation
        element?.orderkey; // Field for sorting conversations
        element?.recvOpt; // Message receiving option
        element
            ?.showName; // Displayed conversation name. The name of a group chat is displayed in the following order of priority: group name > group ID. The name of a one-to-one chat is displayed in the following order of priority: friend remarks of the message receiver > nickname of the message receiver > `userID` of the message receiver.
        element?.type; // Conversation type, which can be `C2C` (one-to-one chat) or `Group` (group chat).
        element?.unreadCount; // Unread message count of the conversation. It is invalid and defaults to `0` for an audio-video group (AVChatRoom).
        element?.userID; // User ID of the message receiver. If the conversation type is one-to-one chat, `userID` is the user ID of the message receiver. Otherwise, it is `null`.
      });
    }

    // Add a conversation to a conversation group
    V2TimValueCallback<List<V2TimConversationOperationResult>>
        addConversationsToGroupRes = await TencentImSDKPlugin.v2TIMManager
            .getConversationManager()
            .addConversationsToGroup(
                groupName: "groupName",// Name of the conversation group to which the conversation is to be added
                conversationIDList: []);// List of conversation IDs added
    if (addConversationsToGroupRes.code == 0) {
      // Added successfully
      addConversationsToGroupRes.data?.forEach((element) {
        element.conversationID; // ID of the conversation added
        element.resultCode; // Operation result error code of the conversation
        element.resultInfo; // Operation result description of the conversation
      });
    }

    // Delete a conversation from a conversation group
    V2TimValueCallback<List<V2TimConversationOperationResult>>
        deleteConversationsFromGroupRes = await TencentImSDKPlugin.v2TIMManager
            .getConversationManager()
            .deleteConversationsFromGroup(
                groupName: "groupName",
                conversationIDList: []);
    if (deleteConversationsFromGroupRes.code == 0) {
      // Deleted successfully
      deleteConversationsFromGroupRes.data?.forEach((element) {
        element.conversationID; // ID of the conversation to be deleted
        element.resultCode; // Operation result error code of the conversation
        element.resultInfo; // Operation result description of the conversation
      });
    }

    // Set a group event listener
    V2TimConversationListener listener = V2TimConversationListener(
      onConversationGroupCreated:
          (String groupName, List<V2TimConversation> conversationList) => {
        // A conversation group is created
        // `groupName`: Name of the conversation group created
        // `conversationList`: List of initialized conversations in the created conversation group
      },
      onConversationGroupDeleted: (String groupName) => {
        // A conversation group is deleted
        // `groupName`: Name of the conversation group deleted
      },
      onConversationGroupNameChanged: (String oldName, String newName) => {
        // The name of a conversation group is changed
        // `oldName`: Old name of the conversation group
        // `newName`: New name of the conversation group
      },
      onConversationsAddedToGroup:
          (String groupName, List<V2TimConversation> conversationList) => {
        // A conversation is added to a conversation group
        // `groupName`: Name of the conversation group to which the conversation is added
        // `conversationList`: List of the conversations added
      },
      onConversationsDeletedFromGroup:
          (String groupName, List<V2TimConversation> conversationList) => {
        // A conversation is deleted from a conversation group
        // `groupName`: Name of the conversation group from which the conversation is deleted
        // `conversationList`: List of the conversations deleted
      },
    );
    // Add a group event listener
    TencentImSDKPlugin.v2TIMManager
        .getConversationManager()
        .addConversationListener(listener: listener);