ListenableMap<K, V> class

This is a ChangeNotifier class that can be handled as a map.

When the contents of the map change, you will be notified of the change.

Inheritance
Implemented types
Implementers
Available Extensions

Constructors

ListenableMap()
This is a ChangeNotifier class that can be handled as a map.
ListenableMap.from(Map<K, V> map)
This is a ChangeNotifier class that can be handled as a map.
ListenableMap.fromListenable(Listenable listenable)
This is a ChangeNotifier class that can be handled as a map.
factory

Properties

entries Iterable<MapEntry<K, V>>
The map entries of this.
no setteroverride
hashCode int
The hash code for this object.
no setteroverride
hasListeners bool
Whether any listeners are currently registered.
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.
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 stored in this notifier.
getter/setter pairinherited
values Iterable<V>
The values of this.
no setteroverride

Methods

addAll(Map<K, V> other) → void
Adds all key/value pairs of other to this map.
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 changes.
inherited
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
dependOn(Listenable listenable, [Map<K, V> filter(Map<K, V> origin)?]) → void
Sends a notification to itself when the target listenable is updated.
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 and removeListener will throw after the object is disposed).
override
forEach(void action(K key, V value)) → void
Applies action to each key/value pair of the map.
override
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() → void
Call all the registered listeners.
inherited
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
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that are notified when the object changes.
inherited
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.
inherited
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.
override
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