GregorianCalendarDelegate class
A CalendarDelegate implementation for the Gregorian calendar system.
The Gregorian calendar is the most widely used civil calendar worldwide. This delegate provides standard date interpretation, formatting, and navigation based on the Gregorian system.
This delegate is the default calendar system for CalendarDatePicker.
See also:
- CalendarDelegate, the base class for defining custom calendars.
- CalendarDatePicker, which uses this delegate for date selection.
- Inheritance
-
- Object
- CalendarDelegate<
DateTime> - GregorianCalendarDelegate
Constructors
- GregorianCalendarDelegate.new()
-
Creates a calendar delegate that uses the Gregorian calendar and the
conventions of the current MaterialLocalizations.
const
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
addDaysToDate(
DateTime date, int days) → DateTime -
Returns a DateTime with the added number of days and time set to
midnight.
override
-
addMonthsToMonthDate(
DateTime monthDate, int monthsToAdd) → DateTime -
Returns a DateTime that is
monthDatewith the added number of months and the day set to 1 and time set to midnight.override -
dateHelpText(
MaterialLocalizations localizations) → String -
The help text used on an empty InputDatePickerFormField to indicate
to the user the date format being asked for.
override
-
dateOnly(
DateTime date) → DateTime -
Returns a DateTime with the date of the original, but time set to
midnight.
override
-
datesOnly(
DateTimeRange< DateTime> range) → DateTimeRange<DateTime> -
Returns a DateTimeRange with the dates of the original, but with times
set to midnight.
inherited
-
firstDayOffset(
int year, int month, MaterialLocalizations localizations) → int -
Computes the offset from the first day of the week that the first day of
the
monthfalls on.override -
formatCompactDate(
DateTime date, MaterialLocalizations localizations) → String -
Formats the date in a compact format.
override
-
formatFullDate(
DateTime date, MaterialLocalizations localizations) → String -
Formats day of week, month, day of month and year in a long-width format.
override
-
formatMediumDate(
DateTime date, MaterialLocalizations localizations) → String -
Formats the date using a medium-width format.
override
-
formatMonthYear(
DateTime date, MaterialLocalizations localizations) → String -
Formats the month and the year of the given
date.override -
formatShortDate(
DateTime date, MaterialLocalizations localizations) → String -
Formats the date using a short-width format.
override
-
formatShortMonthDay(
DateTime date, MaterialLocalizations localizations) → String -
Formats the month and day of the given
date.override -
formatYear(
int year, MaterialLocalizations localizations) → String -
Full unabbreviated year format, e.g. 2017 rather than 17.
inherited
-
getDay(
int year, int month, int day) → DateTime -
Returns a DateTime with the given
year,month, andday.override -
getDaysInMonth(
int year, int month) → int -
Returns the number of days in a month, according to the proleptic
Gregorian calendar.
override
-
getMonth(
int year, int month) → DateTime -
Returns a DateTime with the given
yearandmonth.override -
isSameDay(
DateTime? dateA, DateTime? dateB) → bool -
Returns true if the two DateTime objects have the same day, month, and
year, or are both null.
inherited
-
isSameMonth(
DateTime? dateA, DateTime? dateB) → bool -
Returns true if the two DateTime objects have the same month and
year, or are both null.
inherited
-
monthDelta(
DateTime startDate, DateTime endDate) → int -
Determines the number of months between two DateTime objects.
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
now(
) → DateTime -
Returns a DateTime representing the current date and time.
override
-
parseCompactDate(
String? inputString, MaterialLocalizations localizations) → DateTime? -
Converts the given compact date formatted string into a DateTime.
override
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited