PlAnimateAppear class

A list of things settling into place one after another.

PlAnimateAppear(
  spacing: 8,
  children: <Widget>[
    for (final Service service in services) PlCard(title: Text(service.name)),
  ],
)

Each child takes the same short drift and fade, held back by its position — so the effect belongs to the set rather than to any one item, and a reader's eye is walked down the list in the order it should be read.

The stagger is per child, which means what you pass matters: eight children are eight steps, and one child holding eight things is one step. That is also how to opt part of a list out — group it.

It lays its children out, which the React build does not have to: there is no stylesheet here to put a display: flex on the container, so orientation and spacing are what a className would have done. Anything more elaborate than a row or a column belongs inside one child, which also makes that whole arrangement one step of the stagger.

Inheritance

Constructors

PlAnimateAppear({required List<Widget> children, PlassOrientation orientation = PlassOrientation.vertical, double spacing = 0, Duration stagger = const Duration(milliseconds: 70), PlassSide from = PlassSide.bottom, double distance = 12, bool fade = true, bool reverse = false, Duration duration = const Duration(milliseconds: 380), Duration delay = Duration.zero, Curve? curve, int? repeat = 1, bool alternate = false, bool paused = false, PlassAnimateTrigger trigger = PlassAnimateTrigger.mount, bool play = false, bool once = true, double threshold = defaultVisibleThreshold, Key? key})
Creates a staggered set.
const

Properties

alternate → bool
Runs every other pass backwards, so a repeat returns instead of jumping.
final
children → List<Widget>
The things that appear, one after another.
final
curve → Curve?
The easing curve. The house curve when nothing says otherwise.
final
delay → Duration
How long before it starts. Counted once, before the first run.
final
distance → double
How far each child travels, in logical pixels.
final
duration → Duration
How long one run takes.
final
fade → bool
Fades each child in as it settles.
final
from → PlassSide
Which edge each child drifts in from.
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
once → bool
With PlassAnimateTrigger.visible, whether it runs only the first time.
final
orientation → PlassOrientation
Which way the set runs.
final
paused → bool
Holds the animation where it is.
final
play → bool
Runs it, when trigger is PlassAnimateTrigger.manual. Each false → true starts it over.
final
repeat → int?
How many times it runs. null never stops.
final
reverse → bool
Runs the list from the last child to the first.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
spacing → double
The gap between children, in logical pixels.
final
stagger → Duration
How long after one child the next one starts.
final
threshold → double
With PlassAnimateTrigger.visible, how much of the widget has to be on screen before it counts as visible, from 0 to 1.
final
trigger → PlassAnimateTrigger
What starts it.
final

Methods

build(BuildContext context) → Widget
Describes the part of the user interface represented by this widget.
override
createElement() → StatelessElement
Creates a StatelessElement to manage this widget's location in the tree.
inherited
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