Value<T> class

A class similar to ValueNotifier with additional state management capabilities.

Inheritance
Implemented types
Mixed-in types
Implementers
Available extensions

Constructors

Value(T val)
Constructs a new Value with the provided initial value.

Properties

hashCode → int
The hash code for this object.
no setterinherited
isDisposed → bool
no setterinherited
listenersLength → int
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
state → T
Gets the current state.
no setterinherited
status ↔ GetStatus<T>
Gets the current status of the state.
getter/setter pairinherited
value ↔ T
Retrieves the current value.
getter/setter pairoverride

Methods

addListener(GetStateUpdate listener) → Disposer
Register a closure to be called when the object notifies its listeners.
inherited
addListenerId(Object? key, GetStateUpdate listener) → Disposer
inherited
call([T? v]) → T?
Updates the value if a new value is provided, otherwise returns the current value.
change(GetStatus<T> status) → void
inherited
containsId(Object id) → bool
inherited
containsListener(GetStateUpdate listener) → bool
inherited
dispose() → void
inherited
disposeId(Object id) → void
To dispose of an id from future updates(), these ids are registered by GetBuilder() or similar, so this is a way to unlink the state change with the Widget from the Controller.
inherited
futurize(Future<T> body(), {T? initialData, String? errorMessage}) → Future<void>
Fetches data asynchronously and updates the state accordingly.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notifyGroupChildren(Object id) → void
inherited
refresh() → void
inherited
refreshGroup(Object id) → void
inherited
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that the object notifies.
inherited
removeListenerId(Object id, VoidCallback listener) → void
inherited
reportAdd(VoidCallback disposer) → void
inherited
reportRead() → void
inherited
toJson() → dynamic
Converts the current value to JSON.
toString() → String
Returns a string representation of the current value.
override
update(T fn(T? value)) → void
Updates the value based on the provided function.

Operators

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