UnmodifiableListView<E> class
An unmodifiable List view of another List.
The source of the elements may be a List or any Iterable with efficient Iterable.length and Iterable.elementAt.
final numbers = <int>[10, 20, 30];
final unmodifiableListView = UnmodifiableListView(numbers);
// Insert new elements into the original list.
numbers.addAll([40, 50]);
print(unmodifiableListView); // [10, 20, 30, 40, 50]
unmodifiableListView.remove(20); // Throws.
- Inheritance
- Available Extensions
Constructors
-
UnmodifiableListView(Iterable<
E> source) -
Creates an unmodifiable list backed by
source
.
Properties
- first ↔ E
-
The first element.
getter/setter pairinherited
- hashCode → int
-
The hash code for this object.
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
Iterator
that 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-setteroverride-getter
-
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 value) → void -
This operation is not supported by an unmodifiable list.
inherited
-
addAll(
Iterable< E> iterable) → void -
This operation is not supported by an unmodifiable list.
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
R
instances.override -
clear(
) → void -
This operation is not supported by an unmodifiable list.
inherited
-
contains(
Object? element) → bool -
Whether the collection contains an element equal to
element
.inherited -
elementAt(
int index) → E -
Returns the
index
th element.inherited -
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? fillValue]) → void -
This operation is not supported by an unmodifiable list.
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
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(
Object? element, [int start = 0]) → int -
The first index of
element
in 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 -
This operation is not supported by an unmodifiable list.
inherited
-
insertAll(
int at, Iterable< E> iterable) → void -
This operation is not supported by an unmodifiable 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
element
in 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
-
remove(
Object? element) → bool -
This operation is not supported by an unmodifiable list.
inherited
-
removeAt(
int index) → E -
This operation is not supported by an unmodifiable list.
inherited
-
removeLast(
) → E -
This operation is not supported by an unmodifiable list.
inherited
-
removeRange(
int start, int end) → void -
This operation is not supported by an unmodifiable list.
inherited
-
removeWhere(
bool test(E element)) → void -
This operation is not supported by an unmodifiable list.
inherited
-
replaceRange(
int start, int end, Iterable< E> iterable) → void -
This operation is not supported by an unmodifiable list.
inherited
-
retainWhere(
bool test(E element)) → void -
This operation is not supported by an unmodifiable list.
inherited
-
setAll(
int at, Iterable< E> iterable) → void -
This operation is not supported by an unmodifiable list.
inherited
-
setRange(
int start, int end, Iterable< E> iterable, [int skipCount = 0]) → void -
This operation is not supported by an unmodifiable list.
inherited
-
shuffle(
[Random? random]) → void -
This operation is not supported by an unmodifiable list.
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
count
elements.inherited -
skipWhile(
bool test(E element)) → Iterable< E> -
Creates an
Iterable
that skips leading elements whiletest
is satisfied.inherited -
sort(
[Comparator< E> ? compare]) → void -
This operation is not supported by an unmodifiable list.
inherited
-
sublist(
int start, [int? end]) → List< E> -
Returns a new list containing the elements between
start
andend
.inherited -
take(
int count) → Iterable< E> -
Creates a lazy iterable of the
count
first 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
-
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
index
in the list.override -
operator []=(
int index, E value) → void -
This operation is not supported by an unmodifiable list.
inherited