IconLineShrink class
Shrinks each of the glyph's contours along its long axis by shrink viewBox units (both ends pull in toward the center) and lets it spring back, one at a time in top-to-bottom order. Works well on glyphs with horizontal bars (e.g. a hamburger menu) — each bar briefly shortens in sequence, a clean ripple with no spin.
Each contour is scaled about its own bounding-box center. Rests as the plain icon (restValue 0), so the ripple is an emphasis on tap; reduced-motion shows the static glyph.
- Inheritance
-
- Object
- IconEffect
- IconLineShrink
Constructors
- IconLineShrink({Duration duration = IconMotion.iconPress, double shrink = 10, double span = 0.6})
-
const
Properties
- autoReverse → bool
-
no setterinherited
- duration → Duration
-
Play time for one cycle. The widget sizes its controller to this.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- loops → bool
-
When true the controller AnimationController.repeats (pair with
autoReverse for a ping-pong such as a breathe).
no setterinherited
- restValue → double
-
The progress value to show at rest — when autoplay is off, before the
first play, and (crucially) under reduced-motion, which renders this single
settled frame instead of animating. e.g. 1.0 for a draw-on that should rest
fully drawn, 0.0 for a spin that rests front-facing.
no setteroverride
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- shrink → double
-
How much (viewBox px) each contour loses off its length at the peak.
final
- span → double
-
Each contour's active window length on the 0..1 timeline; the rest
(
1 - span) is the one-by-one stagger spread.final
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
paint(
Canvas canvas, Size size, IconGeometry geom, double t, Paint paint) → void -
Paint one frame.
sizeis the icon's viewBox space;tis raw 0..1.override -
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited