getHistoryMessage static method

Future<List?> getHistoryMessage(
  1. int conversationType,
  2. String targetId,
  3. int messageId,
  4. int count,
)

获取历史消息

conversationType 会话类型，参见枚举 RCConversationType

targetId 会话 id

messageId 消息 id，每次进入聊天页面可以传 -1

count 需要获取的消息数

Implementation

static Future<List?> getHistoryMessage(int conversationType, String targetId, int messageId, int count) async {
  Map map = {'conversationType': conversationType, 'targetId': targetId, "messageId": messageId, "count": count};
  List? list = await _channel.invokeMethod(RCMethodKey.GetHistoryMessage, map);
  if (list == null) {
    return [];
  }
  List msgList = [];
  for (String msgStr in list) {
    Message? msg = MessageFactory.instance!.string2Message(msgStr);
    msgList.add(msg);
  }
  return msgList;
}