Get message history

// Get historical messages in a one-on-one chat
ArrayList<ZIMMessage> curMessageList = new ArrayList();

String conversationID = "xxxx";

// Retrieve 30 messages at a time, starting from the end
ZIMMessageQueryConfig config = new ZIMMessageQueryConfig();
// For the first retrieval, nextMessage is null
config.nextMessage = null;
config.messageCount = 30;
config.reverse = true;

ZIMMessageQueriedCallback callback = new ZIMMessageQueriedCallback() {
    @Override
    public void onMessageQueried(ArrayList<ZIMMessage> messageList, ZIMError errorInfo) {
        // Developers can use this callback to listen for the retrieved message list.

        curMessageList.addAll(0, messageList);

        // When scrolling down to the topmost message on the screen, retrieve earlier messages
        if (fetchMore) {
            // For subsequent pagination, nextMessage is the last message in the currently retrieved message list
            config.nextMessage = messageList.get(messageList.size() - 1);
            zim.queryHistoryMessage(conversationID, ZIMConversationType.Peer, config, callback);
        }
    }
}
zim.queryHistoryMessage(conversationID, ZIMConversationType.Peer, config, callback);

// Get the message history.
std::string conversationID = "xxxx";

// Get session history messages from late to early. The number of historical messages is 20 at a time.
zim::ZIMTextMessage *message = nullptr;
zim::ZIMMessageQueryConfig config;
config.count = 20;
config.reverse = true;

zim_->queryHistoryMessage(conversationID,zim::ZIMConversationTypePeer,config,callback);

// Retrieve historical messages for one-on-one chats
var curMessageList = [];

var conversationID = '';
var conversationType = 0;
// Retrieve 30 messages each time, starting from the latest message
var config = {
    nextMessage: null, // Set nextMessage to null for the first retrieval
    count: 30,
    reverse: true
}

function queryMessageCallback({ messageList }) {
    curMessageList.push(...messageList);

    // When scrolling down to the topmost message on the screen, retrieve earlier messages
    if (fetchMore && messageList.length > 0) {
        // For subsequent pagination, set nextMessage to the first message in the current retrieved message list
        config.nextMessage = messageList[0];
        zim.queryHistoryMessage(conversationID, conversationType, config).then(queryMessageCallback);
    }
}

zim.queryHistoryMessage(conversationID, conversationType, config).then(queryMessageCallback);

// Get the historical messages of a one-on-one chat
// Get the conversation history messages from the back to the front, retrieve 30 messages each time
  ZIMMessageQueryConfig config = ZIMMessageQueryConfig();
// For the first retrieval, nextMessage is null
  config.nextMessage = null;
  config.count = 30;
  config.reverse = true;
  await ZIM
      .getInstance()!
      .queryHistoryMessage('conversationID', ZIMConversationType.peer, config)
      .then((value) => {
            // Triggered when successful
            // Developers can listen to this callback to obtain the retrieved message list.
            // When the finger scrolls down to the topmost message on the screen, retrieve earlier messages
            // Save the frontmost message as the anchor for the messages
            if (fetchMore) {
              // For subsequent pagination retrieval, nextMessage is the first message in the currently retrieved message list
              config.nextMessage = value.messageList[0],
              // Recursive retrieval
            }
          })
      .catchError((onError) {
    // Triggered when failed
  });

// Get the chat history of a one-on-one chat
NSString *conversationID = @"xxxx";

// Retrieve messages from the back to the front, 20 messages at a time

ZIMMessageQueryConfig *config = [[ZIMMessageQueryConfig alloc] init];
config.count = 20;
config.reverse = true;
// nextMessage is null for the first retrieval
config.nextMessage = nil

[zim queryHistoryMessageByConversationID:conversationID conversationType:conversationType config:config callback:^(NSArray<ZIMMessage *> * _Nonnull messageList, ZIMError * _Nonnull errorInfo) {
    // Developers can listen to this callback to get the message list.
    // When scrolling down to the topmost message on the screen, retrieve earlier messages
    // Save the frontmost message as the anchor for the messages
    if (fetchMore) {
        // nextMessage is the first message in the current retrieved message list for subsequent pagination retrieval
        config.nextMessage = messageList[0];
        // Recursively call the retrieval function
    }
}];