TextEffect class abstract

Base class for all text animation effects.

Subclasses implement getAnimations to produce per-character animation data for a given global progress value. Effects are stateless and pure: the same inputs always produce the same output, enabling composition via CharacterAnimation.combine.

Every effect guarantees that f(0) == f(1), meaning characters return to their identity state at both extremes for seamless looping.

Implementers

Constructors

TextEffect({Duration duration = const Duration(milliseconds: 1000), Curve curve = Curves.easeInOut, Duration delayBetweenChars = Duration.zero})
Creates a TextEffect with configurable timing.
const

Properties

curve → Curve
Curve applied to the animation timing for easing.
final
delayBetweenChars → Duration
Delay between each successive character's animation start.
final
duration → Duration
Total duration of one full animation cycle for a single character.
final
hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

applyCurve(double t) → double
Applies the effect's curve to a linear value t (0.0–1.0).
getAnimations(double progress, int charCount) → List<CharacterAnimation>
Produces a list of per-character animations for the given progress.
getTotalDuration(int charCount) → Duration
Returns the total duration needed to animate all charCount characters.
noise(int index, [int offset = 0]) → double
Returns a deterministic pseudo-random value (0.0–1.0) for the given index and optional offset.
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.
toString() → String
A string representation of this object.
inherited

Operators

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