loadMessage method
通过messageId
从db获取消息.
Implementation
Future<EMMessage> loadMessage(String messageId) async {
Map req = {"msg_id": messageId};
Map<String, dynamic> result =
await _channel.invokeMethod(EMSDKMethod.getMessage, req);
EMError.hasErrorFromResult(result);
return EMMessage.fromJson(result[EMSDKMethod.getMessage]);
}