IntervalDuration class

A custom curve that allows for an interval-based animation with a specific duration.

This class extends the Curve class and can be used to define a custom animation curve that operates within a specific interval of the animation timeline.

Example usage:

AnimationController controller = AnimationController(
  duration: const Duration(seconds: 2),
  vsync: this,
);

Animation<double> animation = CurvedAnimation(
  parent: controller,
  curve: IntervalDuration(),
);

This is useful for creating animations that only play during a specific portion of the overall animation duration.

Inheritance

• Object
• ParametricCurve<double>
• Curve
• IntervalDuration

Constructors

IntervalDuration({Duration? start, Duration? end, required Duration duration, Curve? curve})

Creates a curve interval with a specific duration.

const

IntervalDuration.delayed({Duration? startDelay, Duration? endDelay, required Duration duration})

Creates an IntervalDuration with a delay.

factory

Properties

curve → Curve?

final

duration → Duration

final

end → Duration?

final

flipped → Curve

Returns a new curve that is the reversed inversion of this one.

no setter, inherited

hashCode → int

The hash code for this object.

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

start → Duration?

final

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

override

transform(double t) → double

Returns the value of the curve at point t.

override

transformInternal(double t) → double

Returns the value of the curve at point t.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

override