AsyncNotifier<T> class

A concrete implementation of AsyncListenable.

Manages the state of an asynchronous value of type T, including loading, result, and error states. Notifies listeners on updates.

Inheritance

Implemented types

Constructors

AsyncNotifier.new({T? value}): Creates an AsyncNotifier with an optional initial value.

error → Object?: The error that occurred, if any. null if no error occurred.
no setteroverride
hasError → bool: Indicates whether an error occurred during the operation.
no setteroverride
hashCode → int: The hash code for this object.
no setterinherited
hasListeners → bool: Whether any listeners are currently registered.
no setterinherited
hasResult → bool: Indicates whether a valid result is available.
no setteroverride
isLoading → bool: Indicates whether the asynchronous operation is currently loading.
no setteroverride
result → T?: The current result, if available. May be null if not yet loaded or if an error occurred.
no setteroverride
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited

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
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
set(T value) → void: Sets the result to value and notifies listeners.
setError(Object error, [StackTrace? st]) → void: Sets an error and notifies listeners.
setLoading() → void: Marks the notifier as loading and notifies listeners.
toString() → String: A string representation of this object.
inherited
update(ResultUpdateFunction<T> updater, [WarnFunction? warnCallback]) → void: Updates the current result using the provided updater function.