MapNotifier<K, V> class

A map that can be listened to for changes and notifies listeners when the map changes.

Inheritance
Implemented types
Mixed-in types
Available extensions

Constructors

MapNotifier([Map<K, V> map = const {}])
Creates a map notifier.

Properties

entries → Iterable<MapEntry<K, V>>
The map entries of this Map.
no setteroverride
hashCode → int
The hash code for this object.
no setterinherited
hasListeners → bool
Whether the object has listeners.
no setterinherited
isEmpty → bool
Whether there is no key/value pair in the map.
no setteroverride
isNotEmpty → bool
Whether there is at least one key/value pair in the map.
no setteroverride
keys → Iterable<K>
The keys of this Map.
no setteroverride
length → int
The number of key/value pairs in the map.
no setteroverride
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
value → Map<K, V>
The current value of the object.
no setteroverride
values → Iterable<V>
The values of this Map.
no setteroverride

Methods

addAll(Map<K, V> other) → void
Adds all key/value pairs of other to this map.
override
addChangeListener(MapChangeListener<K, V> listener) → void
Adds a listener to be notified of changes.
override
addEntries(Iterable<MapEntry<K, V>> newEntries) → void
Adds all key/value pairs of newEntries to this map.
override
addListener(VoidCallback listener) → void
Register a closure to be called when the object notifies its listeners.
override
cast<RK, RV>() → Map<RK, RV>
Provides a view of this map as having RK keys and RV instances, if necessary.
override
clear() → void
Removes all entries from the map.
override
containsKey(Object? key) → bool
Whether this map contains the given key.
override
containsValue(Object? value) → bool
Whether this map contains the given value.
override
defaultAddListener(ChangeListener listener) → void
Add a listener to the list of listeners.
inherited
defaultNotifyListeners(Object? event) → void
Notify all the listeners.
inherited
defaultRemoveListener(ChangeListener listener) → void
Remove a listener from the list of listeners.
inherited
dispose() → void
Disposes the object making it unusable for further operations and releasing the resources.
inherited
forEach(void action(K key, V value)) → void
Applies action to each key/value pair of the map.
override
getValue<T>(FormKey<T> key) → T?

Available on FormMapValues, provided by the FormMapValuesExtension extension

Retrieves a typed value for a specific form key.
map<K2, V2>(MapEntry<K2, V2> convert(K key, V value)) → Map<K2, V2>
Returns a new map where all entries of this map are transformed by the given convert function.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notifyListeners(MapChangeDetails<K, V> details) → void
Notifies listeners of the changes.
putIfAbsent(K key, V ifAbsent()) → V
Look up the value of key, or add a new entry if it isn't there.
override
remove(Object? key) → V?
Removes key and its associated value, if present, from the map.
override
removeChangeListener(MapChangeListener<K, V> listener) → void
Removes a listener from being notified of changes.
override
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that the object notifies.
override
removeWhere(bool test(K key, V value)) → void
Removes all entries of this map that satisfy the given test.
override
toString() → String
A string representation of this object.
override
update(K key, V update(V value), {V ifAbsent()?}) → V
Updates the value for the provided key.
override
updateAll(V update(K key, V value)) → void
Updates all values.
override

Operators

operator ==(Object other) → bool
The equality operator.
inherited
operator [](Object? key) → V?
The value for the given key, or null if key is not in the map.
override
operator []=(K key, V value) → void
Associates the key with the given value.
override