Hibok/lib/home/send_msg_state.dart

import 'package:chat/data/chat_data_mgr.dart';
import 'package:chat/data/constants.dart';
import 'package:chat/models/ChatMsg.dart';
import 'package:chat/utils/msgHandler.dart';
import 'package:flutter/material.dart';

class SendMsgState extends StatefulWidget {
  final int sessionId;
  final int time;
  final bool isGroup;
  SendMsgState({this.sessionId, this.time, this.isGroup});
  @override
  _SendMsgStateState createState() => _SendMsgStateState();
}

class _SendMsgStateState extends State<SendMsgState> {
  @override
  Widget build(BuildContext context) {
    var msg =
        ChatDataMgr().getMsgBy(widget.sessionId, widget.time, widget.isGroup);

    if (msg.state == MsgState.SendingFailed ||
        msg.state == MsgState.UploadFailed) {
      return Padding(
          padding: EdgeInsets.only(right: 5),
          child: Icon(Icons.error_outline, size: 12, color: Colors.red));
    } else if (msg.state <= MsgState.Sending) {
      return Padding(
          padding: EdgeInsets.only(right: 5),
          child: Icon(IconData(0xe657, fontFamily: Constants.IconFontFamily),
              size: 12, color: Color(0xFFc0c0c0)));
    }

    return SizedBox(width: 0);
  }
}