Flutter app error - type 'Timestamp' is not a subtype of type 'DateTime'

Question

I\'m fetching data cloud firestore & trying to show in my app by using the following piece of code.

new Text(timeago.format(document.data[\'tripDoc\'][\'         


        

Answer 1

.toDate() worked for me. Now the modified code is -

new Text(timeago.format(document.data['tripDoc']['docCreatedOn'].toDate()))

Hope, it'll help someone.

Answer 2

I think this is more reliable

DateTime updateDateTime = DateTime.fromMillisecondsSinceEpoch(
        map['updatedatetime'].millisecondsSinceEpoch);

Answer 3

This could also be an error because in the database or firebase there is some type that is missing or different name on

Answer 4

var date = DateTime.fromMillisecondsSinceEpoch(timestamp)

Answer 5

It is irrelavant but for those who use Timestamp (cloud_firestore) instead of DateTime you probably will get

<String, dynamic>' is not a subtype of type 'Timestamp'

class MyUser {
  String uid;
  String email;
  Timestamp firstJoined;
  
  MyUser.fromJson(Map<String, dynamic> data) {
    this.uid = data['uid'] ?? '';
    this.email = data['email'] ?? '';
    // PARSE FIRESTORE TIMESTAMP
    if (data['firstJoined'] != null) {
        this.firstJoined = Timestamp(
            data['firstJoined']['_seconds'],
            data['firstJoined']['_nanoseconds'],
        );
    } else {
        this.firstJoined=null;
    }
  }
}

Answer 6

Ios and Android will not receive same type. Ios receive the timestamps as TimeStamp and Android receive it as DateTime already. So for fixing this issue I just created this little function. This will return a DateTime and let use format it etc.

import 'dart:io';

import 'package:cloud_firestore/cloud_firestore.dart';

DateTime parseTime(dynamic date) {
  return Platform.isIOS ? (date as Timestamp).toDate() : (date as DateTime);
}