DateException: Jalali day is out of valid range on _isCurrentDateValid() function

[alibt]

We are encountering this exception in our Sentry logs.
After investigating both the Jalali calendar and this package, it seems the issue occurs when trying to create a date like the 31st day of a 30-day month during scrolling — for example, 31st of Azar.

Unfortunately, we don't have the exact user scenario that triggers this, but it happens with a noticeable frequency.

Suggestion:
I recommend wrapping the body of the _isCurrentDateValid function with a try-catch block and returning false if an exception occurs.

I will create a PR soon to address this issue.

This is the trace :
#0 _Algo.createFromYearMonthDay (package:shamsi_date/src/jalali/jalali_calculation.dart:228)
#1 new Jalali (package:shamsi_date/src/jalali/jalali_date.dart:126)
#2 _CupertinoDatePickerDateState._isCurrentDateValid (package:persian_datetime_picker/src/cupertino/date_picker.dart:1515)
#3 _CupertinoDatePickerDateState._buildMonthPicker. (package:persian_datetime_picker/src/cupertino/date_picker.dart:1428)
#4 _CupertinoPickerState._handleSelectedItemChanged (package:flutter/src/cupertino/picker.dart:266)
#5 _ListWheelScrollViewState._handleScrollNotification (package:flutter/src/widgets/list_wheel_scroll_view.dart:763)
#6 _NotificationElement.onNotification (package:flutter/src/widgets/notification_listener.dart:138)
#7 _NotificationNode.dispatchNotification (package:flutter/src/widgets/framework.dart:3403)
#8 _NotificationNode.dispatchNotification (package:flutter/src/widgets/framework.dart:3406)
#9 _NotificationNode.dispatchNotification (package:flutter/src/widgets/framework.dart:3406)
#10 Element.dispatchNotification (package:flutter/src/widgets/framework.dart:5089)
#11 Notification.dispatch (package:flutter/src/widgets/notification_listener.dart:68)
#12 DragScrollActivity.dispatchScrollUpdateNotification (package:flutter/src/widgets/scroll_activity.dart:507)
#13 ScrollPosition.didUpdateScrollPositionBy (package:flutter/src/widgets/scroll_position.dart:1043)
#14 ScrollPosition.setPixels (package:flutter/src/widgets/scroll_position.dart:390)
#15 ScrollPositionWithSingleContext.setPixels (package:flutter/src/widgets/scroll_position_with_single_context.dart:87)
#16 ScrollPositionWithSingleContext.applyUserOffset (package:flutter/src/widgets/scroll_position_with_single_context.dart:131)
#17 ScrollDragController.update (package:flutter/src/widgets/scroll_activity.dart:422)
#18 ScrollableState._handleDragUpdate (package:flutter/src/widgets/scrollable.dart:858)
#19 DragGestureRecognizer._checkUpdate. (package:flutter/src/gestures/monodrag.dart:837)
#20 GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:351)
#21 DragGestureRecognizer._checkUpdate (package:flutter/src/gestures/monodrag.dart:837)
#22 DragGestureRecognizer.handleEvent (package:flutter/src/gestures/monodrag.dart:683)
#23 PointerRouter._dispatch (package:flutter/src/gestures/pointer_router.dart:98)
#24 PointerRouter._dispatchEventToRoutes. (package:flutter/src/gestures/pointer_router.dart:143)
#25 _LinkedHashMapMixin.forEach (dart:_compact_hash:726)
#26 PointerRouter._dispatchEventToRoutes (package:flutter/src/gestures/pointer_router.dart:141)
#27 PointerRouter.route (package:flutter/src/gestures/pointer_router.dart:127)
#28 GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:502)
#29 GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:482)
#30 RendererBinding.dispatchEvent (package:flutter/src/rendering/binding.dart:457)
#31 GestureBinding._handlePointerEventImmediately (package:flutter/src/gestures/binding.dart:427)
#32 GestureBinding.handlePointerEvent (package:flutter/src/gestures/binding.dart:390)
#33 GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.dart:337)
#34 GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:306)
#35 _invoke1 (dart:ui/hooks.dart:328)
#36 PlatformDispatcher._dispatchPointerDataPacket (dart:ui/platform_dispatcher.dart:450)
#37 _dispatchPointerDataPacket (dart:ui/hooks.dart:262)

[Ehsan-abaci]

I also faced this problem. Please let me know if you've solved it.

We are encountering this exception in our Sentry logs. After investigating both the Jalali calendar and this package, it seems the issue occurs when trying to create a date like the 31st day of a 30-day month during scrolling — for example, 31st of Azar.