ValueState class - value_state library

Constructors

ValueState(T initialValue)

Properties

first → T: Available on ValueNotifier<List<T>>, provided by the ValueNotifierListExtension extension
Returns the first element of the list.
no setter
firstOrNull → T?: Available on ValueNotifier<List<T>>, provided by the ValueNotifierListExtension extension
Returns the first element of the list or null if the list is empty.
no setter
hashCode → int: The hash code for this object.
no setterinherited
hasListeners → bool: Whether any listeners are currently registered.
no setterinherited
hasNoValue → bool: Available on ValueNotifier<T>, provided by the ValueNotifierExtension extension
Returns true if the current value is null.
no setter
hasValue → bool: Available on ValueNotifier<T>, provided by the ValueNotifierExtension extension
Returns true if the current value is not null.
no setter
initialValue → T: The initial value of the state, stored without copying.
final
isEmpty → bool: Available on ValueNotifier<List<T>>, provided by the ValueNotifierListExtension extension
Returns true if the list is empty.
no setter
isEmpty → bool: Available on ValueNotifier<String>, provided by the ValueNotifierStringExtension extension
Returns true if the current value is empty.
no setter
isNotEmpty → bool: Available on ValueNotifier<List<T>>, provided by the ValueNotifierListExtension extension
Returns true if the list is not empty.
no setter
isNotEmpty → bool: Available on ValueNotifier<String>, provided by the ValueNotifierStringExtension extension
Returns true if the current value is not empty.
no setter
last → T: Available on ValueNotifier<List<T>>, provided by the ValueNotifierListExtension extension
Returns the last element of the list.
no setter
lastOrNull → T?: Available on ValueNotifier<List<T>>, provided by the ValueNotifierListExtension extension
Returns the last element of the list or null if the list is empty.
no setter
length → int: Available on ValueNotifier<List<T>>, provided by the ValueNotifierListExtension extension
Returns the number of elements in the list.
no setter
length → int: Available on ValueNotifier<String>, provided by the ValueNotifierStringExtension extension
Returns the number of UTF-16 code units in the string.
no setter
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
single → T: Available on ValueNotifier<List<T>>, provided by the ValueNotifierListExtension extension
Returns the single element of the list.
no setter
singleOrNull → T?: Available on ValueNotifier<List<T>>, provided by the ValueNotifierListExtension extension
Returns the single element of the list or null if the list is empty.
no setter
trimmed → String: Available on ValueNotifier<String>, provided by the ValueNotifierStringExtension extension
Returns the current value without leading and trailing whitespace.
no setter
value ↔ T: The current value stored in this notifier.
getter/setter pairinherited

Methods

add(T element) → void: Available on ValueNotifier<List<T>>, provided by the ValueNotifierListExtension extension
Appends element to the list and notifies listeners.
addAll(Iterable<T> elements) → void: Available on ValueNotifier<List<T>>, provided by the ValueNotifierListExtension extension
Appends all elements and notifies listeners.
addListener(VoidCallback listener) → void: Register a closure to be called when the object changes.
inherited
clear() → void: Available on ValueNotifier<List<T>>, provided by the ValueNotifierListExtension extension
Removes all elements and notifies listeners.
clear() → void: Available on ValueNotifier<String>, provided by the ValueNotifierStringExtension extension
Clears the current value by setting it to an empty string.
dispose() → void: Discards any resources used by the object.
inherited
getter() → T: Available on ValueNotifier<T>, provided by the ValueNotifierExtension extension
Returns the current value.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
notifyChanged() → void: Notifies listeners that the state has changed.
notifyListeners() → void: Call all the registered listeners.
inherited
remove(T element) → void: Available on ValueNotifier<List<T>>, provided by the ValueNotifierListExtension extension
Removes the first occurrence of element and notifies listeners.
removeAt(int index) → void: Available on ValueNotifier<List<T>>, provided by the ValueNotifierListExtension extension
Removes the element at index and notifies listeners. Throws a RangeError if index is out of range.
removeListener(VoidCallback listener) → void: Remove a previously registered closure from the list of closures that are notified when the object changes.
inherited
reset() → void: Resets the state to its initial value.
run(AsyncCallback callback) → Future<void>: Available on ValueNotifier<bool>, provided by the ValueNotifierBoolExtension extension
Sets the value to true while the callback runs and resets it to false afterward.
setter(T newValue) → void: Available on ValueNotifier<T>, provided by the ValueNotifierExtension extension
Updates the notifier with the given value.
toggle() → void: Available on ValueNotifier<bool>, provided by the ValueNotifierBoolExtension extension
Reverses the current boolean value.
toString() → String: A string representation of this object.
inherited

Operators

operator ==(Object other) → bool: The equality operator.
inherited
operator [](int index) → T: Available on ValueNotifier<List<T>>, provided by the ValueNotifierListExtension extension
Returns the element at the given index.
operator []=(int index, T element) → void: Available on ValueNotifier<List<T>>, provided by the ValueNotifierListExtension extension
Replaces the element at the given index and notifies listeners.

ValueState<T> class

Constructors

Properties

Methods

Operators

value_state library