FSliderController class abstract

A controller that manages a slider's active track.

This class should be extended to customize value. By default, the following controllers are provided:

Inheritance

Implementers

Constructors

FSliderController({required FSliderValue value, FSliderInteraction interaction = .tapAndSlideThumb, double hapticFeedbackVelocity = 6.5, FSliderActiveThumb thumb = .max}): Creates a FSliderController for selecting a single value.
FSliderController.range({required FSliderValue value, double hapticFeedbackVelocity = 6.5}): Creates a FSliderController for selecting a range.

active → ({bool max, bool min}): Whether the active track is expandable at the min and max edges.
final
disposed → bool: True if this notifier has been disposed.
no setterinherited
hapticFeedbackVelocity → double: The minimum absolute per-frame drag delta, in pixels, required for FSliderHaptic.collision to fire when an active edge collides with the track's limit, the other thumb, or a minimum range extent.
final
hashCode → int: The hash code for this object.
no setterinherited
hasListeners → bool: Whether any listeners are currently registered.
no setterinherited
interaction → FSliderInteraction: The allowed ways to interaction with the slider. Defaults to FSliderInteraction.tapAndSlideThumb.
final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
value ↔ FSliderValue: The slider's active track/value.
getter/setter pair

addListener(VoidCallback listener) → void: Register a closure to be called when the object changes.
inherited
attach(double extent, List<FSliderMark> marks) → void: Registers the controller to a slider with the given extent and marks.
dispose() → void: Discards any resources used by the object.
inherited
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
notifyListeners() → void: Call all the registered listeners.
inherited
removeListener(VoidCallback listener) → void: Remove a previously registered closure from the list of closures that are notified when the object changes.
inherited
reset() → void: Resets the controller to its initial state.
slide(double offset, {required bool min, double velocity = 0}) → FSliderHaptic?: Slides the active track to the given offset on the min edge, in logical pixels.
step({required bool min, required bool expand}) → bool: Moves the active track on the min edge to the previous/next step.
tap(double offset) → ({bool haptic, FSliderActiveThumb? thumb}): Taps the slider at given offset, in logical pixels, along the track.
toString() → String: A string representation of this object.
inherited