PageViewport class

An object that sotres the page viewport state for a specific page.

Inheritance

Constructors

PageViewport.new({required int page, required ExprollablePageController pageController})

Properties

fraction → double
The fraction of the viewport that the page should occupy.
no setter
hashCode → int
The hash code for this object.
no setterinherited
hasListeners → bool
Whether any listeners are currently registered.
no setterinherited
maxFraction → double
The upper bound of fraction.
no setter
maxOffset → double
The upper bound of offset.
no setter
minFraction → double
The lower bound of fraction.
no setter
minOffset → double
The lower bound of offset.
no setter
offset → double
The distance from the top of the viewport to the top of this page viewport.
no setter
page → int
The page corresponding to this page viewport.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
translation → Offset
How many pixels the page should translate from the actual position in the page view.
no setter

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
toString() → String
A string representation of this object.
inherited

Operators

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

Static Methods

of(BuildContext context) → PageViewport?
Obtains the PageViewport attached to the page that is the nearest ancestor from context.