ComponentValueController<T> class

A concrete implementation of ComponentController that manages a single value.

This controller provides a simple way to programmatically control any component that accepts a ComponentController. It extends ValueNotifier to provide change notification capabilities.

The controller maintains the current value and notifies listeners when the value changes through the inherited ValueNotifier.value setter.

Example:

final controller = ComponentValueController<String>('initial value');

// Listen to changes
controller.addListener(() {
  print('Value changed to: ${controller.value}');
});

// Update the value
controller.value = 'new value';
Inheritance
Implemented types
Available extensions

Constructors

ComponentValueController.new(T value)
Creates a ComponentValueController with the given initial value.

Properties

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
value ↔ T
The current value stored in this notifier.
getter/setter pairinherited

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).
inherited
map<R>(R mapper(T value)) → ValueListenable<R>

Available on ValueListenable<T>, provided by the ValueListenableExtension extension

Returns a read-only view of the ValueListenable.
map<R>(R mapper(T value)) → ValueListenable<R>

Available on ValueNotifier<T>, provided by the ValueNotifierExtension extension

Maps the value of the ValueNotifier to a new value.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notifyListeners() → void
Call all the registered listeners.
inherited
readOnly() → ValueListenable<T>

Available on ValueNotifier<T>, provided by the ValueNotifierExtension extension

Returns a read-only view of the ValueNotifier.
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