SmartDateTimeRangePicker class

A reusable Date & Time range picker widget.

This widget allows users to:

  • Select a start and end date using a calendar
  • Select start and end times using a custom time selector
  • Receive a validated DateTimeRange once the selection is valid

Key Features

  • Supports date range limits via maxRangeDays
  • Prevents invalid selections such as:
    • End time before start time (on same day)
    • Start time earlier than the current time
  • Fully themeable via SmartDateTimeTheme
  • Labels are customizable using rich text (InlineSpan)

The widget is designed to be:

  • Modular (calendar & time can be reused independently)
  • Fully controlled via parameters
  • Safe for future dates, leap years, and month variations
Inheritance

Constructors

SmartDateTimeRangePicker({Key? key, required DateTime minDate, required DateTime maxDate, required int maxRangeDays, required ValueChanged<DateTimeRange<DateTime>> onChanged, List<int> minuteSteps = const [0, 15, 30, 45], List<InlineSpan>? calendarLabel, List<InlineSpan>? startTimeLabel, List<InlineSpan>? endTimeLabel, SmartDateTimeTheme theme = const SmartDateTimeTheme(), Color surfaceColour = Colors.white, bool allowPastMonths = true})
const

Properties

allowPastMonths → bool
Whether navigating to months before the current month is allowed
final
calendarLabel → List<InlineSpan>?
Optional rich-text label shown above the calendar
final
endTimeLabel → List<InlineSpan>?
Optional rich-text label shown above the end time selector
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
maxDate → DateTime
Latest selectable date (inclusive)
final
maxRangeDays → int
Maximum allowed number of days in the selected range
final
minDate → DateTime
Earliest selectable date (inclusive)
final
minuteSteps → List<int>
Allowed minute steps for the time selector Example: [0, 15, 30, 45]
final
onChanged → ValueChanged<DateTimeRange<DateTime>>
Callback fired when a valid date-time range is selected
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
startTimeLabel → List<InlineSpan>?
Optional rich-text label shown above the start time selector
final
surfaceColour → Color
Background color of the picker surface
final
theme → SmartDateTimeTheme
Visual configuration for calendar & time widgets
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<SmartDateTimeRangePicker>
Creates the mutable state for this widget at a given location in the tree.
override
debugDescribeChildren() → List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String
A string representation of this object.
inherited
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) → String
Returns a string representation of this node and its descendants.
inherited
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String
Returns a one-line detailed description of the object.
inherited
toStringShort() → String
A short, textual description of this widget.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited