✨ Quick fixes before PR.

example/lib/widgets/add_event_form.dart

@@ -314,6 +314,11 @@ class _AddOrEditEventFormState extends State<AddOrEditEventForm> {
     _endDate = DateTime.now().withoutTime;
     _startTime = null;
     _endTime = null;
+    _color = Colors.blue;
+
+    if (mounted) {
+      setState(() {});
+    }
   }
 
   void _displayColorPicker() {

example/lib/widgets/date_time_selector.dart

@@ -46,8 +46,6 @@ class DateTimeSelectorFormField extends StatefulWidget {
 }
 
 class _DateTimeSelectorFormFieldState extends State<DateTimeSelectorFormField> {
-  bool _isSelectorOpen = false;
-
   late var _minimumDate = CalendarConstants.minDate.withoutTime;
 
   late var _textEditingController =

lib/src/calendar_event_data.dart

@@ -4,10 +4,12 @@
 
 import 'package:flutter/material.dart';
 
+import '../calendar_view.dart';
 import 'extensions.dart';
 
-/// Stores all the events on [date]
 @immutable
+
+/// {@macro calendar_event_data_doc}
 class CalendarEventData<T extends Object?> {
   /// Specifies date on which all these events are.
   final DateTime date;
@@ -43,13 +45,10 @@ class CalendarEventData<T extends Object?> {
   /// Define style of description.
   final TextStyle? descriptionStyle;
 
-  /// Stores all the events on [date].
-  ///
-  /// If [startTime] and [endTime] both are 0 or either of them is null, then
-  /// event will be considered a full day event.
-  ///
-  const CalendarEventData({
+  /// {@macro calendar_event_data_doc}
+  CalendarEventData({
     required this.title,
+    required DateTime date,
     this.description,
     this.event,
     this.color = Colors.blue,
@@ -58,8 +57,8 @@ class CalendarEventData<T extends Object?> {
     this.titleStyle,
     this.descriptionStyle,
     DateTime? endDate,
-    required this.date,
-  }) : _endDate = endDate;
+  })  : _endDate = endDate?.withoutTime,
+        date = date.withoutTime;
 
   DateTime get endDate => _endDate ?? date;
 
@@ -75,6 +74,13 @@ class CalendarEventData<T extends Object?> {
         (startTime!.isDayStart && endTime!.isDayStart));
   }
 
+  bool occursOnDate(DateTime currentDate) {
+    return currentDate == date ||
+        currentDate == endDate ||
+        (currentDate.isBefore(endDate.withoutTime) &&
+            currentDate.isAfter(date.withoutTime));
+  }
+
   Map<String, dynamic> toJson() => {
         "date": date,
         "startTime": startTime,
@@ -139,3 +145,25 @@ class CalendarEventData<T extends Object?> {
   @override
   int get hashCode => super.hashCode;
 }
+
+/// {@template calendar_event_data_doc}
+/// Stores all the events on [date].
+///
+/// If [startTime] and [endTime] both are 0 or either of them is null, then
+/// event will be considered a full day event.
+///
+/// - [date] and [endDate] are used to define dates only. So, If you
+/// are providing any time information with these two arguments,
+/// it will be ignored.
+///
+/// - [startTime] and [endTime] are used to define the time span of the event.
+/// So, If you are providing any day information (year, month, day), it will
+/// be ignored. It will also, consider only hour and minutes as time. So,
+/// seconds, milliseconds and microseconds will be ignored as well.
+///
+/// - [startTime] and [endTime] can no span more then one day. For example,
+/// If start time is 11th Nov 11:30 PM and end time is 12th Nov 1:30 AM, it
+/// will not be considered as valid time. Events with invalid time will throw
+/// [AssertionError] in debug mode and will be ignored in release mode
+/// in [DayView] and [WeekView].
+/// {@endtemplate}

lib/src/components/_internal_components.dart

@@ -323,6 +323,7 @@ class EventGenerator<T extends Object?> extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    // TODO: Use SizedBox If possible.
     return Container(
       height: height,
       width: width,

lib/src/day_view/_internal_day_view_page.dart

@@ -225,7 +225,10 @@ class InternalDayViewPage<T extends Object?> extends StatelessWidget {
                         date: date,
                         onTileTap: onTileTap,
                         eventArranger: eventArranger,
-                        events: controller.getEventsOnDay(date),
+                        events: controller.getEventsOnDay(
+                          date,
+                          includeFullDayEvents: false,
+                        ),
                         heightPerMinute: heightPerMinute,
                         eventTileBuilder: eventTileBuilder,
                         scrollNotifier: scrollNotifier,

lib/src/event_controller.dart

@@ -124,13 +124,13 @@ class EventController<T extends Object?> extends ChangeNotifier {
     //ignore: deprecated_member_use_from_same_package
     if (_eventFilter != null) return _eventFilter!.call(date, this.events);
 
-    return _calendarData.getEventsOnDay(date,
-        includeFullDays: includeFullDayEvents);
+    return _calendarData.getEventsOnDay(date.withoutTime,
+        includeFullDayEvents: includeFullDayEvents);
   }
 
   /// Returns full day events on given day.
   List<CalendarEventData<T>> getFullDayEvent(DateTime date) {
-    return _calendarData.getFullDayEvent(date);
+    return _calendarData.getFullDayEvent(date.withoutTime);
   }
 
   /// Updates the [eventFilter].
@@ -186,13 +186,18 @@ class CalendarData<T> {
   UnmodifiableListView<CalendarEventData<T>> get rangingEventList =>
       UnmodifiableListView(_rangingEventList);
 
-  /// Stores all full day events(24hr event)
+  /// Stores all full day events(24hr event).
+  ///
+  /// This includes all full day events that are recurring day events as well.
+  ///
+  ///
   final _fullDayEventList = <CalendarEventData<T>>[];
   UnmodifiableListView<CalendarEventData<T>> get fullDayEventList =>
       UnmodifiableListView(_fullDayEventList);
 
   //#region Data Manipulation Methods
   void addFullDayEvent(CalendarEventData<T> event) {
+    // TODO: add separate logic for adding full day event and ranging event.
     _fullDayEventList.addEventInSortedManner(event);
     _eventList.add(event);
   }
@@ -203,7 +208,7 @@ class CalendarData<T> {
   }
 
   void addSingleDayEvent(CalendarEventData<T> event) {
-    final date = event.date.withoutTime;
+    final date = event.date;
 
     if (_singleDayEvents[date] == null) {
       _singleDayEvents.addAll({
@@ -245,7 +250,7 @@ class CalendarData<T> {
   }
 
   void removeSingleDayEvent(CalendarEventData<T> event) {
-    if (_singleDayEvents[event.date.withoutTime]?.remove(event) ?? false) {
+    if (_singleDayEvents[event.date]?.remove(event) ?? false) {
       _eventList.remove(event);
     }
   }
@@ -286,23 +291,20 @@ class CalendarData<T> {
 
   //#region Data Fetch Methods
   List<CalendarEventData<T>> getEventsOnDay(DateTime date,
-      {bool includeFullDays = true}) {
+      {bool includeFullDayEvents = true}) {
     final events = <CalendarEventData<T>>[];
 
     if (_singleDayEvents[date] != null) {
       events.addAll(_singleDayEvents[date]!);
     }
 
     for (final rangingEvent in _rangingEventList) {
-      if (date == rangingEvent.date ||
-          date == rangingEvent.endDate ||
-          (date.isBefore(rangingEvent.endDate) &&
-              date.isAfter(rangingEvent.date))) {
+      if (rangingEvent.occursOnDate(date)) {
         events.add(rangingEvent);
       }
     }
 
-    if (includeFullDays) {
+    if (includeFullDayEvents) {
       events.addAll(getFullDayEvent(date));
     }
 
@@ -312,9 +314,9 @@ class CalendarData<T> {
   /// Returns full day events on given day.
   List<CalendarEventData<T>> getFullDayEvent(DateTime date) {
     final events = <CalendarEventData<T>>[];
+
     for (final event in fullDayEventList) {
-      if (date.difference(event.date).inDays >= 0 &&
-          event.endDate.difference(date).inDays > 0) {
+      if (event.occursOnDate(date)) {
         events.add(event);
       }
     }

lib/src/week_view/_internal_week_view_page.dart

@@ -336,8 +336,10 @@ class InternalWeekViewPage<T extends Object?> extends StatelessWidget {
                                       eventArranger: eventArranger,
                                       eventTileBuilder: eventTileBuilder,
                                       scrollNotifier: scrollConfiguration,
-                                      events: controller
-                                          .getEventsOnDay(filteredDates[index]),
+                                      events: controller.getEventsOnDay(
+                                        filteredDates[index],
+                                        includeFullDayEvents: false,
+                                      ),
                                       heightPerMinute: heightPerMinute,
                                     ),
                                   ],