DynamicTimeline class

A widget that displays a timeline and positions its children using their start and end date times.

Each child must be a TimelineItem that represents an event.

Each item must have a key in case of displaying dynamic data.

This widget has a fixed size, calculated using the extent properties.

Inheritance

Constructors

DynamicTimeline({Key? key, required DateTime firstDateTime, required DateTime lastDateTime, required String? labelBuilder(DateTime), Axis axis = Axis.vertical, Duration? intervalDuration, double intervalExtent = 100, int crossAxisCount = 1, double maxCrossAxisIndicatorExtent = 60, double? maxCrossAxisItemExtent, Duration? minItemDuration, double crossAxisSpacing = 20, Color color = Colors.black, double strokeWidth = 2, StrokeCap strokeCap = StrokeCap.round, bool resizable = true, Paint? paint, TextStyle? textStyle, required List<TimelineItem> items})
A widget that displays a timeline and positions its children using their start and end date times.

Properties

axis → Axis
The axis of the line.
final
children → List<Widget>
The widgets below this widget in the tree.
finalinherited
color → Color
The color of the line and labels.
final
crossAxisCount → int
The number of items in the cross axis.
final
crossAxisSpacing → double
The number of logical pixels between each item along the cross axis.
final
firstDateTime → DateTime
The first date time in the timeline.
final
hashCode → int
The hash code for this object.
no setterinherited
intervalDuration → Duration?
The lenght of time between each mark.
final
intervalExtent → double
The number of logical pixels between each mark.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
labelBuilder → String? Function(DateTime)
Called to build the label of each mark.
final
lastDateTime → DateTime
The last datetime in the timeline.
final
maxCrossAxisIndicatorExtent → double
The extent of the label and line.
final
maxCrossAxisItemExtent → double?
It is used to calculate the cross axis extent of the timeline.
final
minItemDuration → Duration?
The minimun duration that the item can be resized.
final
paint → Paint?
The paint used to draw the line.
final
resizable → bool
If true the items can be resized, dragging in the main axis extremes.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
strokeCap → StrokeCap
The stroke cap of the line
final
strokeWidth → double
The stroke width of the line.
final
textStyle → TextStyle?
The text style of the labels.
final

Methods

createElement() → MultiChildRenderObjectElement
RenderObjectWidgets always inflate to a RenderObjectElement subclass.
inherited
createRenderObject(BuildContext context) → RenderObject
Creates an instance of the RenderObject class that this RenderObjectWidget represents, using the configuration described by this RenderObjectWidget.
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
didUnmountRenderObject(covariant RenderObject renderObject) → void
A render object previously associated with this widget has been removed from the tree. The given RenderObject will be of the same type as returned by this object's createRenderObject.
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}) → 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
updateRenderObject(BuildContext context, covariant RenderDynamicTimeline renderObject) → void
Copies the configuration described by this RenderObjectWidget to the given RenderObject, which will be of the same type as returned by this object's createRenderObject.
override

Operators

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