CircularPanPhysics class

Calculates panned distances by assuming a circular shape.

This requires size to be set to the available area for detecting on which side of the circle a pan event occurs.

For more details on the actual implementation, you can refer to this article.

Constructors

CircularPanPhysics({Duration duration = PanPhysics.kDefaultDuration, Curve curve = PanPhysics.kDefaultCurve, bool allowOppositeRotationFlung = true})

allowOppositeRotationFlung → bool: Decides if Flung can be initiated from the opposite initial rotation
final
curve → Curve: The type of curve to use for easing the animation when returning PanState.distance to zero.
final
duration → Duration: The animation duration used for returning a PanState.distance to zero.
final
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
size ↔ Size: The size of the area to be panned.
getter/setter pairinherited
value ↔ PanState: The current value stored in this notifier.
getter/setter pairinherited

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).
inherited
handlePanEnd(DragEndDetails details) → void: Is called when the end of a pan gesture is detected.
override
handlePanStart(DragStartDetails details) → void: Is called when the start of a pan gesture is detected.
override
handlePanUpdate(DragUpdateDetails details) → void: Is called when a pan gesture is updated.
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
toString() → String: A string representation of this object.
inherited