Uint32List class - dart:typed_data library (original) (raw)

A fixed-length list of 32-bit unsigned integers that is viewable as aTypedData.

For long lists, this implementation can be considerably more space- and time-efficient than the default List implementation.

Integers stored in the list are truncated to their low 32 bits, interpreted as an unsigned 32-bit integer with values in the range 0 to 4294967295.

It is a compile-time error for a class to attempt to extend or implementUint32List.

Implemented types

Available extensions

Constructors

Uint32List(int length)

Creates a Uint32List of the specified length (in elements), all of whose elements are initially zero.

factory

Uint32List.fromList(List<int> elements)

Creates a Uint32List with the same length as the elements list and copies over the elements.

factory

Uint32List.sublistView(TypedData data, [int start = 0, int? end])

Creates a Uint32List view on a range of elements of data.

factory

Uint32List.view(ByteBuffer buffer, [int offsetInBytes = 0, int? length])

Creates a Uint32List view of the specified region in the specified byte buffer.

factory

Properties

addressPointer<Uint32>

Available on Uint32List, provided by the Uint32ListAddress extension

The memory address of the underlying data.

no setter

bufferByteBuffer

The byte buffer associated with this object.

no setterinherited

elementSizeInBytesint

The number of bytes in the representation of each element in this list.

no setterinherited

firstint

The first element.

getter/setter pairinherited

hashCodeint

The hash code for this object.

no setterinherited

isEmptybool

Whether this collection has no elements.

no setterinherited

isNotEmptybool

Whether this collection has at least one element.

no setterinherited

iteratorIterator<int>

A new Iterator that allows iterating the elements of this Iterable.

no setterinherited

lastint

The last element.

getter/setter pairinherited

lengthint

The number of objects in this list.

getter/setter pairinherited

lengthInBytesint

The length of this view, in bytes.

no setterinherited

offsetInBytesint

The offset of this view into the underlying byte buffer, in bytes.

no setterinherited

reversedIterable<int>

An Iterable of the objects in this list in reverse order.

no setterinherited

runtimeTypeType

A representation of the runtime type of the object.

no setterinherited

singleint

Checks that this iterable has only one element, and returns that element.

no setterinherited

toJSJSUint32Array

Available on Uint32List, provided by the Uint32ListToJSUint32Array extension

Converts this Uint32List to a JSUint32Array by either casting, unwrapping, or cloning the Uint32List.

no setter

Methods

add(int value)→ void

Adds value to the end of this list, extending the length by one.

inherited

addAll(Iterable<int> iterable)→ void

Appends all objects of iterable to the end of this list.

inherited

any(bool test(int element))→ bool

Checks whether any element of this iterable satisfies test.

inherited

asMap()→ Map<int, int>

An unmodifiable Map view of this list.

inherited

asUnmodifiableView()→ Uint32List

A read-only view of this Uint32List.

cast<R>()→ List<R>

Returns a view of this list as a list of R instances.

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

elementAt(int index)→ int

Returns the indexth element.

inherited

every(bool test(int element))→ bool

Checks whether every element of this iterable satisfies test.

inherited

expand<T>(Iterable<T> toElements(int element))→ Iterable<T>

Expands each element of this Iterable into zero or more elements.

inherited

fillRange(int start, int end, [int? fillValue])→ void

Overwrites a range of elements with fillValue.

inherited

firstWhere(bool test(int element), {int orElse()?})→ int

The first element that satisfies the given predicate test.

inherited

fold<T>(T initialValue, T combine(T previousValue, int element))→ T

Reduces a collection to a single value by iteratively combining each element of the collection with an existing value

inherited

followedBy(Iterable<int> other)→ Iterable<int>

Creates the lazy concatenation of this iterable and other.

inherited

forEach(void action(int element))→ void

Invokes action on each element of this iterable in iteration order.

inherited

getRange(int start, int end)→ Iterable<int>

Creates an Iterable that iterates over a range of elements.

inherited

indexOf(int element, [int start = 0])→ int

The first index of element in this list.

inherited

indexWhere(bool test(int element), [int start = 0])→ int

The first index in the list that satisfies the provided test.

inherited

insert(int index, int element)→ void

Inserts element at position index in this list.

inherited

insertAll(int index, Iterable<int> iterable)→ void

Inserts all objects of iterable at position index in this list.

inherited

join([String separator = ""])→ String

Converts each element to a String and concatenates the strings.

inherited

lastIndexOf(int element, [int? start])→ int

The last index of element in this list.

inherited

lastIndexWhere(bool test(int element), [int? start])→ int

The last index in the list that satisfies the provided test.

inherited

lastWhere(bool test(int element), {int orElse()?})→ int

The last element that satisfies the given predicate test.

inherited

map<T>(T toElement(int 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

reduce(int combine(int value, int element))→ int

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.

inherited

removeAt(int index)→ int

Removes the object at position index from this list.

inherited

removeLast()→ int

Removes and returns the last object in this list.

inherited

removeRange(int start, int end)→ void

Removes a range of elements from the list.

inherited

removeWhere(bool test(int element))→ void

Removes all objects from this list that satisfy test.

inherited

replaceRange(int start, int end, Iterable<int> replacements)→ void

Replaces a range of elements with the elements of replacements.

inherited

retainWhere(bool test(int element))→ void

Removes all objects from this list that fail to satisfy test.

inherited

setAll(int index, Iterable<int> iterable)→ void

Overwrites elements with the objects of iterable.

inherited

setRange(int start, int end, Iterable<int> iterable, [int skipCount = 0])→ void

Writes some elements of iterable into a range of this list.

inherited

shuffle([Random? random])→ void

Shuffles the elements of this list randomly.

inherited

singleWhere(bool test(int element), {int orElse()?})→ int

The single element that satisfies test.

inherited

skip(int count)→ Iterable<int>

Creates an Iterable that provides all but the first count elements.

inherited

skipWhile(bool test(int value))→ Iterable<int>

Creates an Iterable that skips leading elements while test is satisfied.

inherited

sort([int compare(int a, int b)?])→ void

Sorts this list according to the order specified by the compare function.

inherited

sublist(int start, [int? end])→ Uint32List

Creates a new list containing the elements between start and end.

override

take(int count)→ Iterable<int>

Creates a lazy iterable of the count first elements of this iterable.

inherited

takeWhile(bool test(int value))→ Iterable<int>

Creates a lazy iterable of the leading elements satisfying test.

inherited

toList({bool growable = true})→ List<int>

Creates a List containing the elements of this Iterable.

inherited

toSet()→ Set<int>

Creates a Set containing the same elements as this iterable.

inherited

toString()→ String

A string representation of this object.

inherited

where(bool test(int element))→ Iterable<int>

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<int> other)→ List<int>

The concatenation of this list and other.

inherited

operator ==(Object other)→ bool

The equality operator.

inherited

operator [](int index)→ int

The object at the given index in the list.

inherited

operator []=(int index, int value)→ void

Sets the value at the given index in the list to value.

inherited

Constants

bytesPerElement → const int