Flutter: type 'DateTime' is not a subtype of type 'String' - flutter

Question

Text(
DateTime.parse(documents[index]['createdAt']
.toDate()
.toString()) ??
'default',
)
I am trying to get date from firestore. I have DateTime.now() stored in createdIn in firestore.

Answer 1

because the format of both is not the same.
step 1: you can create DateFormat.
step 2: use 'DateFormat'.parse().
try reading this: https://help.talend.com/r/6K8Ti_j8LkR03kjthAW6fg/atMe2rRCZqDW_Xjxy2Wbqg

Answer 2

Here, it is expecting type as 'String', but we are passing it as a 'DateTime' which is incorrect.
Formatting dates in the default 'en_US' format does not require any initialization.
https://api.flutter.dev/flutter/intl/DateFormat-class.html
So, we simply need to format it like:
var dateTime = DateTime.now()
DateFormat.E().format(dateTime)
E() is the constructor of DateFormat in Flutter which refers to first 3 letter of the week
You can refer the official doc for available constructors:
https://api.flutter.dev/flutter/intl/DateFormat-class.html#constructors
Note:
Below is the version used for DateTime library ~ intl
intl: ^0.18.0
(https://pub.dev/packages/intl)

Answer 3

If it's a Timestamp field, cast it to Timestamp. If you need that as a DateTime, use a .toDate on that. Don't process it through a string... completely unnecessary.

Answer 4

It might help you
String? changeDateFormatWithInput(String? currentDate, currentFormat,
requiredFormat) {
String? date;
try {
if (currentDate != null && currentDate.isNotEmpty) {
DateTime tempDate =
new DateFormat(currentFormat).parse(currentDate, true);
date = DateFormat(requiredFormat).format(tempDate.toLocal());
return date;
}
} catch (e) {
print(e);
return null;
}
return date;
}