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
-
- Object
- ChangeNotifier
- ValueNotifier<
Map< K, V> > - ListenableMap
- Implemented types
-
- Map<
K, V>
- Map<
- 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< newEntries) → voidK, V> > -
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 andRV
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 ifkey
is not in the map.override -
operator []=(
K key, V value) → void -
Associates the
key
with the givenvalue
.override