Convert string datetime to DateTime type in flutter [closed] - flutter

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I want to combine date and time to DateTime format. so that I can use it to send local notifications.
I am getting time and date separately from firebase as appointment_date and appointment_time:
using this code:
for (int i = 0; i < appt_list.length; i++) {
String name = appt_list[i].docName;
String k = appt_list[i].key;
Provider.of<NotificationService>(context, listen: false)
.sheduledNotification(datetime, name, k);
}
and i want to use custom (values stored in firebase for appointments reminder) timedate in local notification function like using 'scheduledNotificationDateTime' variable is doing:
Future sheduleddateNotification(DateTime datetime, String name, String key) async {
var scheduledNotificationDateTime = DateTime.now().add(Duration(seconds: 5));
var androidPlatformChannelSpecifics =
AndroidNotificationDetails(key,
'your other channel name', 'your other channel description');
var iOSPlatformChannelSpecifics =
IOSNotificationDetails();
NotificationDetails platformChannelSpecifics = NotificationDetails(
androidPlatformChannelSpecifics, iOSPlatformChannelSpecifics);
await _flutterLocalNotificationsPlugin.schedule(
0,
'Reminder Appointment',
'You have an appointment scheduled with $name at ${(time.hour)}:${(time.minute)}',
scheduledNotificationDateTime,
platformChannelSpecifics);
}
But I don't know how do I combine my date and time together and use them as one! Please help me out in solving this problem

Answer 1

How about something like this?
final String dateTimeString = appointment_date + " " + appointment_time;
final DateFormat format = new DateFormat("yyyy-MM-dd hh:mm a");
print (format.parse(dateTimeString));