EmitterList<E extends ChangeEmitter<Change> > class
A ListEmitter that can only contain ChangeEmitters. EmitterList will automatically dispose elements that get removed from the list and all remaining elements in the list when it is disposed.
- Inheritance
-
- Object
- ChangeEmitter<
ListChange< E> > - ListEmitter<
E> - EmitterList
- Implemented types
- Available extensions
Constructors
-
EmitterList(List<
E> list)
Properties
-
changes
→ Stream<
ListChange< E> > -
The stream of Changes to notify your UI or other state elements that they should update.
no setterinherited
- emitDetailedChanges → bool
-
Whether to emit changes that include detailed information about the specific change.
Defaults to false which will emit the same cached change object to
minimize garbage collection.
finalinherited
- first ↔ E
-
The first element.
getter/setter pairinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- isDisposed → bool
-
Whether
thishas been disposed.no setterinherited - isEmpty → bool
-
Whether this collection has no elements.
no setterinherited
- isNotEmpty → bool
-
Whether this collection has at least one element.
no setterinherited
-
iterator
→ Iterator<
E> -
A new
Iteratorthat allows iterating the elements of thisIterable.no setterinherited - last ↔ E
-
The last element.
getter/setter pairinherited
- length ↔ int
-
The number of objects in this list.
getter/setter pairinherited
-
parent
→ ChangeEmitter<
Change> ? -
no setterinherited
-
reversed
→ Iterable<
E> -
An Iterable of the objects in this list in reverse order.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- single → E
-
Checks that this iterable has only one element, and returns that element.
no setterinherited
Methods
-
add(
E element) → void -
Adds
valueto the end of this list, extending the length by one.inherited -
addAll(
Iterable iterable) → void -
Appends all objects of
iterableto the end of this list.inherited -
addChangeToStream(
ListChange< E> change) → void -
Used by subclasses to broadcast Changes.
inherited
-
any(
bool test(E element)) → bool -
Checks whether any element of this iterable satisfies
test.inherited -
asMap(
) → Map< int, E> -
An unmodifiable Map view of this list.
inherited
-
cast<
R> () → List< R> -
Returns a view of this list as a list of
Rinstances.inherited -
clear(
) → void -
Removes all objects from this list; the length of the list becomes zero.
inherited
-
contains(
Object? element) → bool -
Whether the collection contains an element equal to
element.inherited -
didRegisterParent(
) → void -
Will be called after parent is set and the ancestor tree is available.
inherited
-
dispose(
) → void -
Disposes resources and closes the stream controller.
override
-
elementAt(
int index) → E -
Returns the
indexth element.inherited -
emit(
{bool quiet = false}) → void -
Emits a change if the list has been modified since the last emit (or since it was initialized).
override
-
every(
bool test(E element)) → bool -
Checks whether every element of this iterable satisfies
test.inherited -
expand<
T> (Iterable< T> f(E element)) → Iterable<T> -
Expands each element of this Iterable into zero or more elements.
inherited
-
fillRange(
int start, int end, [E? fill]) → void -
Overwrites a range of elements with
fillValue.inherited -
findAncestorOfExactType<
T extends ChangeEmitter< (Change> >) → T? -
inherited
-
firstWhere(
bool test(E element), {E orElse()?}) → E -
The first element that satisfies the given predicate
test.inherited -
fold<
T> (T initialValue, T combine(T previousValue, E element)) → T -
Reduces a collection to a single value by iteratively combining each
element of the collection with an existing value
inherited
-
followedBy(
Iterable< E> other) → Iterable<E> -
Creates the lazy concatenation of this iterable and
other.inherited -
forEach(
void action(E element)) → void -
Invokes
actionon each element of this iterable in iteration order.inherited -
getRange(
int start, int end) → Iterable< E> -
Creates an Iterable that iterates over a range of elements.
inherited
-
indexOf(
Object? element, [int start = 0]) → int -
The first index of
elementin this list.inherited -
indexWhere(
bool test(E element), [int start = 0]) → int -
The first index in the list that satisfies the provided
test.inherited -
insert(
int index, E element) → void -
Inserts the object at position
indexin this list.inherited -
insertAll(
int index, Iterable< E> iterable) → void -
Inserts all objects of
iterableat positionindexin this list.inherited -
join(
[String separator = ""]) → String -
Converts each element to a String and concatenates the strings.
inherited
-
lastIndexOf(
Object? element, [int? start]) → int -
The last index of
elementin this list.inherited -
lastIndexWhere(
bool test(E element), [int? start]) → int -
The last index in the list that satisfies the provided
test.inherited -
lastWhere(
bool test(E element), {E orElse()?}) → E -
The last element that satisfies the given predicate
test.inherited -
map<
T> (T f(E element)) → Iterable< T> -
The current elements of this iterable modified by
toElement.inherited -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
reduce(
E combine(E previousValue, E element)) → E -
Reduces a collection to a single value by iteratively combining elements
of the collection using the provided function.
inherited
-
registerChild(
ChangeEmitter< Change> child) → void -
override
-
registerChildren(
) → void -
override
-
remove(
Object? element) → bool -
Removes the first occurrence of
valuefrom this list.inherited -
removeAt(
int index) → E -
Removes the object at position
indexfrom this list.inherited -
removeLast(
) → E -
Pops and returns the last object in this list.
inherited
-
removeRange(
int start, int end) → void -
Removes the objects in the range
startinclusive toendexclusive.inherited -
removeWhere(
bool test(E element)) → void -
Removes all objects from this list that satisfy
test.inherited -
replaceRange(
int start, int end, Iterable< E> newContents) → void -
Removes the objects in the range
startinclusive toendexclusive and inserts the contents ofreplacementin its place.inherited -
retainWhere(
bool test(E element)) → void -
Removes all objects from this list that fail to satisfy
test.inherited -
setAll(
int index, Iterable< E> iterable) → void -
Overwrites elements with the objects of
iterable.inherited -
setRange(
int start, int end, Iterable< E> iterable, [int skipCount = 0]) → void -
Writes some elements of
iterableinto a range of this list.inherited -
shuffle(
[Random? random]) → void -
Shuffles the elements of this list randomly.
inherited
-
singleWhere(
bool test(E element), {E orElse()?}) → E -
The single element that satisfies
test.inherited -
skip(
int count) → Iterable< E> -
Creates an Iterable that provides all but the first
countelements.inherited -
skipWhile(
bool test(E element)) → Iterable< E> -
Creates an
Iterablethat skips leading elements whiletestis satisfied.inherited -
sort(
[int compare(E a, E b)?]) → void -
Sorts this list according to the order specified by the
comparefunction.inherited -
sublist(
int start, [int? end]) → List< E> -
Returns a new list containing the elements between
startandend.inherited -
take(
int count) → Iterable< E> -
Creates a lazy iterable of the
countfirst elements of this iterable.inherited -
takeWhile(
bool test(E element)) → Iterable< E> -
Creates a lazy iterable of the leading elements satisfying
test.inherited -
toList(
{bool growable = true}) → List< E> -
Creates a List containing the elements of this Iterable.
inherited
-
toProviderList(
{Widget? child, Widget builder(BuildContext context, int index, T state)?}) → List< Widget> -
Available on EmitterList<
ConvertsT> , provided by the ProviderExtension extensionthisinto a list of Providers that provide the elements ofthiswith a child or a builder. -
toSet(
) → Set< E> -
Creates a Set containing the same elements as this iterable.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
-
where(
bool test(E element)) → Iterable< E> -
Creates a new lazy Iterable with all elements that satisfy the
predicate
test.inherited -
whereType<
T> () → Iterable< T> -
Creates a new lazy Iterable with all elements that have type
T.inherited
Operators
-
operator +(
List< E> other) → List<E> -
Returns the concatenation of this list and
other.inherited -
operator ==(
Object other) → bool -
The equality operator.
inherited
-
operator [](
int index) → E -
The object at the given
indexin the list.inherited -
operator []=(
int index, E value) → void -
Sets the value at the given
indexin the list tovalue.inherited