ImmutableNotifier<T> class
final
A notifier that is immutable. The state of the notifier is provided in the constructor.
Constructors
- ImmutableNotifier(T _value, {String describeState(T state)?, String? debugLabel})
Properties
- customDebugLabel → String?
-
finalinherited
- debugLabel → String
-
A label to be used in debug messages and
by the RefenaTracingPage.
no setterinherited
-
dependencies
→ Set<
BaseNotifier> -
A collection of notifiers that this notifier depends on.
finalinherited
-
dependents
→ Set<
BaseNotifier> -
A collection of notifiers that depend on this notifier.
They will be disposed when this notifier is disposed.
finalinherited
- disposed → bool
-
Whether this notifier is disposed.
no setterinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
-
provider
→ BaseProvider<
BaseNotifier, dynamic> ? -
The provider that created this notifier.
This is only available after the initialization.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- state ↔ T
-
Gets the current state.
getter/setter pairinherited-getter
Methods
-
addListener(
Rebuildable rebuildable, ListenerConfig< T> config) → void -
inherited
-
cleanupListeners(
) → void -
inherited
-
describeState(
T state) → String - Override this to provide a customized description of the state. This is used by the built-in observers for improved logging.
-
dispose(
) → void -
This is called on Ref.dispose.
You can override this method to dispose resources.
inherited
-
getListeners(
) → List< Rebuildable> -
inherited
-
getStream(
) → Stream< NotifierEvent< T> > -
inherited
-
init(
) → T - Initializes the state of the notifier. This method is called only once and as soon as the notifier is accessed the first time.
-
internalDispose(
) → Set< BaseNotifier> -
Disposes the notifier.
Returns a list of dependents that should be disposed as well.
inherited
-
internalSetup(
ProxyRef ref, BaseProvider< BaseNotifier, dynamic> ? provider) → void -
Handles the actual initialization of the notifier.
Calls init internally.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
postInit(
) → void -
Override this to provide a custom post initialization.
The initial state is already set at this point.
inherited
-
removeListener(
Rebuildable rebuildable) → void -
inherited
-
toString(
) → String -
A string representation of this object.
inherited
-
updateShouldNotify(
T prev, T next) → bool -
Override this if you want to a different kind of equality.
inherited
Operators
-
operator ==(
Object other) → bool -
Subclasses should not override this method.
It is used internally by dependencies and dependents.
inherited