Flutter 无法将 Firestore 时间戳转换为 DateTime

Question

尝试在Flatter中将Firestore时间戳转换为DateTime时，我总是遇到一个错误，尝试了所有的解决方案，但都没有成功（上次尝试如何将Firestore的时间戳打印为格式化的日期和时间）

下面是我的代码；

密码

factory UserModel.fromMap(Map<String, dynamic> map) {
    return UserModel(
      name: map['name'],
      email: map['email'],
      username: map['username'],
      registerDate:
          DateTime.fromMillisecondsSinceEpoch(map['registerDate'] * 1000),
      id: map['id'],
      imageUrl: map['imageUrl'],
      cvUrl: map['cvUrl'],
      phoneNumber: map['phoneNumber'],
      education: Education.fromMap(map['education']),
      location: Location.fromMap(map['location']),
      lookingForIntern: map['lookingForIntern'],
    );
  }

错误

'Timestamp' has no instance method '*'.
Receiver: Instance of 'Timestamp'

将日期时间转换为时间戳，并已更改

registerDate:
              DateTime.fromMillisecondsSinceEpoch(map['registerDate'] * 1000),

到

registerDate:map['registerDate']

现在得到下面的错误；

Converting object to an encodable object failed: Instance of 'Timestamp'

但是< code > print(map[' register date '])打印< code >时间戳(秒=1632412800，纳秒=0)

Answer 1

试试这个包来处理问题-

https://pub.dev/packages/date_format

import 'package:date_format/date_format.dart';


     DateTime datetime = stamp.toDate();
        var time = formatDate(datetime, [hh, ':', nn, ' ', am]);