RouletteController class

Controller for Roulette widget.

Roulette widget use RouletteController to control the rotate animation and Roulette's display RouletteGroup.

Mixed in types

Constructors

RouletteController({required RouletteGroup group, required TickerProvider vsync})
Create a new RouletteController instance. group is the RouletteGroup to display. vsync is the TickerProvider to use for the animation.
factory

Properties

animation → Animation<double>
Current rotate animation
no setter
group ↔ RouletteGroup
Retrieve current displaying RouletteGroup
getter/setter pair
hashCode → int
The hash code for this object.
no setterinherited
hasListeners → bool
Whether any listeners are currently registered.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

addListener(VoidCallback listener) → void
Register a closure to be called when the object changes.
inherited
dispose() → void
Discards any resources used by the object. After this is called, the object is not in a usable state and should be discarded (calls to addListener will throw after the object is disposed).
override
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
resetAnimation() → void
Reset animation to initial state
rollTo(int targetIndex, {Duration duration = defaultDuration, int minRotateCircles = defaultMinRotateCircles, bool clockwise = true, Curve? curve = Curves.fastOutSlowIn, double offset = 0}) → Future<void>
Start an animation to targetIndex, targetIndex item must be in group. The duration is the animation duration. The clockwise determin whether the animator should run in closewise didrection. Config minRotateCircles to determine the minimum rotate before settle. Provide a curve to update the animation curve. Provide a offset for roulette stop position, by default, 0 indicates the start of the part.
stop({bool canceled = true}) → void
Stop current running animation
toString() → String
A string representation of this object.
inherited

Operators

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