PlAnimateRotate class

Content turning about a point.

const PlAnimateRotate(
  from: 0,
  to: 360,
  duration: Duration(milliseconds: 2400),
  curve: Curves.linear,
  repeat: null,
  fade: false,
  child: PlIcon(icon: RefreshGlyph()),
)

Two angles rather than one, which is what lets this be both effects a rotation is ever used for. from alone is an arrival — something swinging into place and stopping. from and to together with a null repeat and a linear curve is a spin that never lands, which is what a badge, a loading mark or a decorative glyph wants.

Rotation is the one movement the design language allows on a glyph without argument — a chevron is turned rather than redrawn all over the package. What it is not for is text: a rotated word is resampled along its whole length, which is precisely what the rule against transforming a control exists to prevent.

Both angles are degrees, not radians. The framework counts in radians and the design language counts in degrees — every gradient in the package is at 135° — so the conversion happens here, once, rather than at every call site.

Inheritance

Constructors

PlAnimateRotate({required Widget child, PlassAnimateMode mode = PlassAnimateMode.enter, double from = -180, double to = 0, Alignment origin = Alignment.center, bool fade = true, Duration duration = const Duration(milliseconds: 440), 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 rotation.
const

Properties

alternate → bool
Runs every other pass backwards, so a repeat returns instead of jumping.
final
child → Widget
What turns.
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
duration → Duration
How long one run takes.
final
fade → bool
Fades in as it turns.
final
from → double
The angle it starts at, in degrees. Negative is anticlockwise.
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
mode → PlassAnimateMode
Whether the content turns into place or out of it.
final
once → bool
With PlassAnimateTrigger.visible, whether it runs only the first time.
final
origin → Alignment
Which point it turns about.
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
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
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
to → double
The angle it ends at, in degrees.
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