Uint8ClampedList class

A fixed-length list of 8-bit unsigned integers.

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

Integers stored in the list are clamped to an unsigned eight bit value. That is, all values below zero are stored as zero and all values above 255 are stored as 255.

It is a compile-time error for a class to attempt to extend or implement Uint8ClampedList.

Implemented types

List<int>
TypedData

Implementers

UnmodifiableUint8ClampedListView

Available Extensions

Constructors

Uint8ClampedList(int length): Creates a Uint8ClampedList of the specified length (in elements), all of whose elements are initially zero.
factory
Uint8ClampedList.fromList(List<int> elements): Creates a Uint8ClampedList of the same size as the elements list and copies over the values clamping when needed.
factory
Uint8ClampedList.sublistView(TypedData data, [int start = 0, int? end]): Creates a Uint8ClampedList view on a range of elements of data.
factory
Uint8ClampedList.view(ByteBuffer buffer, [int offsetInBytes = 0, int? length]): Creates a Uint8ClampedList view of the specified region in the specified byte buffer.
factory

Properties

buffer → ByteBuffer: Returns the byte buffer associated with this object.
read-onlyinherited
elementSizeInBytes → int: Returns the number of bytes in the representation of each element in this list.
read-onlyinherited
first ↔ int: The first element.
read / writeinherited
hashCode → int: The hash code for this object.
read-onlyinherited
isEmpty → bool: Whether this collection has no elements.
read-onlyinherited
isNotEmpty → bool: Whether this collection has at least one element.
read-onlyinherited
iterator → Iterator<int>: A new Iterator that allows iterating the elements of this Iterable.
read-onlyinherited
last ↔ int: The last element.
read / writeinherited
length ↔ int: The number of objects in this list.
read / writeinherited
lengthInBytes → int: Returns the length of this view, in bytes.
read-onlyinherited
offsetInBytes → int: Returns the offset in bytes into the underlying byte buffer of this view.
read-onlyinherited
reversed → Iterable<int>: An Iterable of the objects in this list in reverse order.
read-onlyinherited
runtimeType → Type: A representation of the runtime type of the object.
read-onlyinherited
single → int: Checks that this iterable has only one element, and returns that element.
read-onlyinherited

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
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]) → Uint8ClampedList: Returns 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>: Returns 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: 1