public override void initState()
{
base.initState();
_entryMode = widget.initialEntryMode;
_selectedDate = widget.initialDate;
_autoValidate = false;
}
public _DatePickerDialog(
Key key = null,
DateTime?initialDate = null,
DateTime?firstDate = null,
DateTime?lastDate = null,
DatePickerEntryMode initialEntryMode = DatePickerEntryMode.calendar,
material_.SelectableDayPredicate selectableDayPredicate = null,
string cancelText = null,
string confirmText = null,
string helpText = null,
DatePickerMode initialCalendarMode = DatePickerMode.day,
string errorFormatText = null,
string errorInvalidText = null,
string fieldHintText = null,
string fieldLabelText = null
) : base(key: key)
{
D.assert(initialDate != null);
D.assert(firstDate != null);
D.assert(lastDate != null);
initialDate = utils.dateOnly(initialDate.Value);
firstDate = utils.dateOnly(firstDate.Value);
lastDate = utils.dateOnly(lastDate.Value);
D.assert(
!lastDate.Value.isBefore(firstDate.Value),
() => $"lastDate {lastDate} must be on or after firstDate {firstDate}."
);
D.assert(
initialDate == null || !initialDate.Value.isBefore(firstDate.Value),
() => $"initialDate {initialDate} must be on or after firstDate {firstDate}."
);
D.assert(
initialDate == null || !initialDate.Value.isAfter(lastDate.Value),
() => $"initialDate {initialDate} must be on or before lastDate {lastDate}."
);
D.assert(
selectableDayPredicate == null || initialDate == null || selectableDayPredicate(initialDate.Value),
() => $"Provided initialDate {initialDate} must satisfy provided selectableDayPredicate."
);
this.initialDate = initialDate.Value;
this.firstDate = firstDate.Value;
this.lastDate = lastDate.Value;
this.initialEntryMode = initialEntryMode;
this.selectableDayPredicate = selectableDayPredicate;
this.cancelText = cancelText;
this.confirmText = confirmText;
this.helpText = helpText;
this.initialCalendarMode = initialCalendarMode;
this.errorFormatText = errorFormatText;
this.errorInvalidText = errorInvalidText;
this.fieldHintText = fieldHintText;
this.fieldLabelText = fieldLabelText;
}
void _handelEntryModeToggle()
{
setState(() => {
switch (_entryMode)
{
case DatePickerEntryMode.calendar:
_autoValidate = false;
_entryMode = DatePickerEntryMode.input;
break;
case DatePickerEntryMode.input:
_formKey.currentState.save();
_entryMode = DatePickerEntryMode.calendar;
break;
}
});
}
public static Future <DateTime> showDatePicker(
BuildContext context,
DateTime initialDate,
DateTime firstDate,
DateTime lastDate,
DatePickerEntryMode initialEntryMode = DatePickerEntryMode.calendar,
material_.SelectableDayPredicate selectableDayPredicate = null,
string helpText = null,
string cancelText = null,
string confirmText = null,
Locale locale = null,
bool useRootNavigator = true,
RouteSettings routeSettings = null,
TextDirection?textDirection = null,
TransitionBuilder builder = null,
DatePickerMode initialDatePickerMode = DatePickerMode.day,
string errorFormatText = null,
string errorInvalidText = null,
string fieldHintText = null,
string fieldLabelText = null
)
{
D.assert(context != null);
initialDate = utils.dateOnly(initialDate);
firstDate = utils.dateOnly(firstDate);
lastDate = utils.dateOnly(lastDate);
D.assert(
!lastDate.isBefore(firstDate),
() => $"lastDate {lastDate} must be on or after firstDate {firstDate}."
);
D.assert(
!initialDate.isBefore(firstDate),
() => $"initialDate {initialDate} must be on or after firstDate {firstDate}."
);
D.assert(
!initialDate.isAfter(lastDate),
() => $"initialDate {initialDate} must be on or before lastDate {lastDate}."
);
D.assert(
selectableDayPredicate == null || selectableDayPredicate(initialDate),
() => $"Provided initialDate {initialDate} must satisfy provided selectableDayPredicate."
);
D.assert(initialEntryMode != null);
D.assert(initialDatePickerMode != null);
D.assert(material_.debugCheckHasMaterialLocalizations(context));
Widget dialog = new _DatePickerDialog(
initialDate: initialDate,
firstDate: firstDate,
lastDate: lastDate,
initialEntryMode: initialEntryMode,
selectableDayPredicate: selectableDayPredicate,
helpText: helpText,
cancelText: cancelText,
confirmText: confirmText,
initialCalendarMode: initialDatePickerMode,
errorFormatText: errorFormatText,
errorInvalidText: errorInvalidText,
fieldHintText: fieldHintText,
fieldLabelText: fieldLabelText
);
if (textDirection != null)
{
dialog = new Directionality(
textDirection: textDirection.Value,
child: dialog
);
}
if (locale != null)
{
dialog = Localizations.overrides(
context: context,
locale: locale,
child: dialog
);
}
return(material_.showDialog <DateTime>(
context: context,
useRootNavigator: useRootNavigator,
routeSettings: routeSettings,
builder: (BuildContext subContext) => { return builder == null ? dialog : builder(subContext, dialog); }
));
}
