ListNotifier<E> class
- Implemented types
-
- ValueListenable<
List< E> > - List<
E> - Iterable<
E>
- ValueListenable<
- Mixed-in types
- Available extensions
Constructors
-
ListNotifier([Iterable<
E> base = const []])
Properties
- first ↔ E
-
The first element.
getter/setter pairinherited
- firstOrNull → T?
-
Available on Iterable<
The first element of this iterator, orT> , provided by the IterableExtensions extensionnull
if the iterable is empty.no setter - hashCode → int
-
The hash code for this object.
no setterinherited
- hasListeners → bool
-
Whether any listeners are currently registered.
no setterinherited
-
indexed
→ Iterable<
(int, T)> -
Available on Iterable<
Pairs of elements of the indices and elements of this iterable.T> , provided by the IterableExtensions extensionno setter - 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
Iterator
that allows iterating the elements of thisIterable
.no setterinherited - last ↔ E
-
The last element.
getter/setter pairinherited
- lastOrNull → T?
-
Available on Iterable<
The last element of this iterable, orT> , provided by the IterableExtensions extensionnull
if the iterable is empty.no setter - length ↔ int
-
The number of elements in this Iterable.
getter/setter pairinherited
-
nonNulls
→ Iterable<
T> -
Available on Iterable<
The non-T?> , provided by the NullableIterableExtensions extensionnull
elements of this iterable.no setter -
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
- singleOrNull → T?
-
Available on Iterable<
The single element of this iterator, orT> , provided by the IterableExtensions extensionnull
.no setter -
toJS
→ JSArray<
T> -
Available on List<
Converts this List to a JSArray by either casting, unwrapping, or cloning the List.T> , provided by the ListToJSArray extensionno setter -
toJSProxyOrRef
→ JSArray<
T> -
Available on List<
Converts this List to a JSArray by either casting, unwrapping, or proxying the List.T> , provided by the ListToJSArray extensionno setter -
value
→ List<
E> -
The current value of the object. When the value changes, the callbacks
registered with addListener will be invoked.
no setteroverride
-
wait
→ Future<
List< T> > -
Available on Iterable<
Waits for futures in parallel.Future< , provided by the FutureIterable extensionT> >no setter
Methods
-
add(
E value) → void -
Adds
value
to the end of this list, extending the length by one. -
addAll(
Iterable< E> iterable) → void -
Appends all objects of
iterable
to the end of this list. -
addListener(
VoidCallback listener) → void -
Register a closure to be called when the object changes.
inherited
-
any(
bool test(E)) → bool -
Checks whether any element of this iterable satisfies
test
.inherited -
asMap(
) → Map< int, E> -
An unmodifiable Map view of this list.
inherited
-
asNameMap(
) → Map< String, T> -
Available on Iterable<
Creates a map from the names of enum values to the values.T> , provided by the EnumByName extension -
byName(
String name) → T -
Available on Iterable<
Finds the enum value in this list with nameT> , provided by the EnumByName extensionname
. -
cast<
T> () → List< T> -
A view of this iterable as an iterable of
R
instances.inherited -
clear(
) → void - Removes all objects from this list; the length of the list becomes zero.
-
contains(
Object? element) → bool -
Whether the collection contains an element equal to
element
.inherited -
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 will throw after the object is disposed).
inherited
-
elementAt(
int index) → E -
Returns the
index
th element.inherited -
elementAtOrNull(
int index) → T? -
Available on Iterable<
The element at positionT> , provided by the IterableExtensions extensionindex
of this iterable, ornull
. -
every(
bool test(E)) → bool -
Checks whether every element of this iterable satisfies
test
.inherited -
expand<
T> (Iterable< T> f(E)) → Iterable<T> -
Expands each element of this Iterable into zero or more elements.
inherited
-
fillRange(
int start, int end, [E? fillValue]) → void -
Overwrites a range of elements with
fillValue
. -
firstWhere(
bool test(E), {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 f(E)) → void -
Invokes
action
on 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(
E element, [int start = 0]) → int -
The first index of
element
in this list.inherited -
indexWhere(
bool test(E), [int start = 0]) → int -
The first index in the list that satisfies the provided
test
.inherited -
insert(
int index, E element) → void -
Inserts
element
at positionindex
in this list. -
insertAll(
int index, Iterable< E> iterable) → void -
Inserts all objects of
iterable
at positionindex
in this list. -
join(
[String separator = '']) → String -
Converts each element to a String and concatenates the strings.
inherited
-
lastIndexOf(
E element, [int? start]) → int -
The last index of
element
in this list.inherited -
lastIndexWhere(
bool test(E), [int? start]) → int -
The last index in the list that satisfies the provided
test
.inherited -
lastWhere(
bool test(E), {E orElse()?}) → E -
The last element that satisfies the given predicate
test
.inherited -
map<
T> (T f(E)) → 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
-
notifyListeners(
) → void -
Call all the registered listeners.
inherited
-
reduce(
E combine(E value, E element)) → E -
Reduces a collection to a single value by iteratively combining elements
of the collection using the provided function.
inherited
-
remove(
Object? value) → bool -
Removes the first occurrence of
value
from this list. -
removeAt(
int index) → E -
Removes the object at position
index
from this list. -
removeLast(
) → E - Removes and returns the last object in this list.
-
removeListener(
VoidCallback listener) → void -
Remove a previously registered closure from the list of closures that are
notified when the object changes.
inherited
-
removeRange(
int start, int end) → void - Removes a range of elements from the list.
-
removeWhere(
bool test(E element)) → void -
Removes all objects from this list that satisfy
test
. -
replaceRange(
int start, int end, Iterable< E> iterable) → void -
Replaces a range of elements with the elements of
replacements
. -
retainWhere(
bool test(E element)) → void -
Removes all objects from this list that fail to satisfy
test
. -
retype<
T> () → List< T> -
inherited
-
setAll(
int index, Iterable< E> iterable) → void -
Overwrites elements with the objects of
iterable
. -
setRange(
int start, int end, Iterable< E> iterable, [int skipCount = 0]) → void -
Writes some elements of
iterable
into a range of this list. -
shuffle(
[Random? random]) → void - Shuffles the elements of this list randomly.
-
singleWhere(
bool test(E), {E orElse()?}) → E -
The single element that satisfies
test
.inherited -
skip(
int n) → Iterable< E> -
Creates an Iterable that provides all but the first
count
elements.inherited -
skipWhile(
bool test(E)) → Iterable< E> -
Creates an
Iterable
that skips leading elements whiletest
is satisfied.inherited -
sort(
[int compare(E a, E b)?]) → void -
Sorts this list according to the order specified by the
compare
function. -
sublist(
int start, [int? end]) → List< E> -
Returns a new list containing the elements between
start
andend
.inherited -
take(
int n) → Iterable< E> -
Creates a lazy iterable of the
count
first elements of this iterable.inherited -
takeWhile(
bool test(E)) → 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
-
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)) → 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
index
in the list.inherited -
operator []=(
int index, E value) → void -
Sets the value at the given
index
in the list tovalue
.