HighlightEffect class

Sweeps a background highlight color behind each character.

Characters are highlighted sequentially with the given highlightColor, fading from opacityFrom to opacityTo for a marker-like effect.

Inheritance

Constructors

HighlightEffect({Duration duration = const Duration(milliseconds: 800), Curve curve = Curves.easeInOut, Color highlightColor = Colors.yellow, double opacityFrom = 0.0, double opacityTo = 0.6, Duration delayBetweenChars = const Duration(milliseconds: 40)}): Creates a highlight sweep animation.
const

curve → Curve: Curve applied to the animation timing for easing.
finalinherited
delayBetweenChars → Duration: Delay between each successive character's animation start.
finalinherited
duration → Duration: Total duration of one full animation cycle for a single character.
finalinherited
hashCode → int: The hash code for this object.
no setterinherited
highlightColor → Color: Background color used for the highlight.
final
opacityFrom → double: Starting opacity of the highlight.
final
opacityTo → double: Peak opacity of the highlight.
final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited

applyCurve(double t) → double: Applies the effect's curve to a linear value t (0.0–1.0).
inherited
getAnimations(double progress, int charCount) → List<CharacterAnimation>: Generates per-character background color sweeps.
override
getTotalDuration(int charCount) → Duration: Returns the total duration needed to animate all charCount characters.
inherited
noise(int index, [int offset = 0]) → double: Returns a deterministic pseudo-random value (0.0–1.0) for the given index and optional offset.
inherited
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
staggeredProgress(double globalProgress, int index, int charCount) → double: Computes the per-character progress for staggered animations.
inherited
toString() → String: A string representation of this object.
inherited