ResilientAnimationController.unbounded constructor

ResilientAnimationController.unbounded({ bool broadcast = false, double value = 0.0, Duration? duration, Duration? reverseDuration, String? debugLabel, required TickerProvider vsync, AnimationBehavior animationBehavior = AnimationBehavior.preserve, })

Creates a resilient animation controller with unbounded limits.

Unbounded controllers have lowerBound set to double.negativeInfinity and upperBound set to double.infinity.

• broadcast: Whether to broadcast updates to multiple subscribers. Defaults to false.
• value: The initial value of the animation. Defaults to 0.0.
• duration: The length of time this animation should last.
• reverseDuration: The length of time this animation should last when going in reverse.
• debugLabel: A label used to identify this animation in debug output.
• vsync: The TickerProvider for driving the animation ticker.
• animationBehavior: The behavior when animations are disabled by system settings. Defaults to AnimationBehavior.preserve.

Ensures:

• Initializes in a dormant state (_DormantAnimationControlDelegate) with infinite bounds.

Example:

final controller = ResilientAnimationController.unbounded(
  value: 10.0,
  vsync: vsyncProvider,
);

Implementation

ResilientAnimationController.unbounded({
  this.broadcast = false,
  double value = 0.0,
  Duration? duration,
  Duration? reverseDuration,
  this.debugLabel,
  required this.vsync,
  this.animationBehavior = AnimationBehavior.preserve,
})  : lowerBound = double.negativeInfinity,
      upperBound = double.infinity {
  assert(debugMaybeDispatchCreated('animation', 'AnimationController', this));
  _delegate = _DormantAnimationControlDelegate(
    value: value,
    duration: duration,
    reverseDuration: reverseDuration,
    lowerBound: lowerBound,
    upperBound: upperBound,
    onValueOrDurationChanged: notifyListeners,
  );
}