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.
- Implemented types
- Implementers
Constructors
- Uint8ClampedList(int length) factory
- Creates a Uint8ClampedList of the specified length (in elements), all of whose elements are initially zero. [...]
- Uint8ClampedList.fromList(List<
int> elements)factory - Creates a Uint8ClampedList of the same size as the
elementslist and copies over the values clamping when needed. [...] - Uint8ClampedList.sublistView(TypedData data, [int start = 0, int? end]) factory
- Creates a Uint8ClampedList view on a range of elements of
data. [...] - Uint8ClampedList.view(ByteBuffer buffer, [int offsetInBytes = 0, int? length]) factory
- Creates a Uint8ClampedList view of the specified region in the specified byte
buffer. [...]
Properties
- buffer → ByteBuffer read-only, inherited
- Returns the byte buffer associated with this object.
- elementSizeInBytes → int read-only, inherited
- Returns the number of bytes in the representation of each element in this list.
- first ↔ int read / write, inherited
- Returns the first element. [...]
- hashCode → int read-only, inherited
- The hash code for this object. [...]
- isEmpty → bool read-only, inherited
- Returns
trueif there are no elements in this collection. [...] - isNotEmpty → bool read-only, inherited
- Returns true if there is at least one element in this collection. [...]
- iterator → Iterator<
int> read-only, inherited - Returns a new
Iteratorthat allows iterating the elements of thisIterable. [...] - last ↔ int read / write, inherited
- Returns the last element. [...]
- length ↔ int read / write, inherited
- The number of objects in this list. [...]
- lengthInBytes → int read-only, inherited
- Returns the length of this view, in bytes.
- offsetInBytes → int read-only, inherited
- Returns the offset in bytes into the underlying byte buffer of this view.
- reversed → Iterable<
int> read-only, inherited - An Iterable of the objects in this list in reverse order.
- runtimeType → Type read-only, inherited
- A representation of the runtime type of the object.
- single → int read-only, inherited
- Checks that this iterable has only one element, and returns that element. [...]
Methods
- add(
int value) → void inherited - Adds
valueto the end of this list, extending the length by one. [...] - addAll(
Iterable< int> iterable) → voidinherited - Appends all objects of
iterableto the end of this list. [...] - any(
bool test(int element)) → bool inherited - Checks whether any element of this iterable satisfies
test. [...] - asMap(
) → Map< int, int> inherited - An unmodifiable Map view of this list. [...]
- cast<
R> () → List< R> inherited - Returns a view of this list as a list of
Rinstances. [...] - clear(
) → void inherited - Removes all objects from this list; the length of the list becomes zero. [...]
- contains(
Object? element) → bool inherited - Whether the collection contains an element equal to
element. [...] - elementAt(
int index) → int inherited - Returns the
indexth element. [...] - every(
bool test(int element)) → bool inherited - Checks whether every element of this iterable satisfies
test. [...] - expand<
T> (Iterable< T> f(int element)) → Iterable<T> inherited - Expands each element of this Iterable into zero or more elements. [...]
- fillRange(
int start, int end, [int? fillValue]) → void inherited - Overwrites a range of elements with
fillValue. [...] - firstWhere(
bool test(int element), {int orElse()}) → int inherited - Returns the first element that satisfies the given predicate
test. [...] - fold<
T> (T initialValue, T combine(T previousValue, int element)) → T inherited - Reduces a collection to a single value by iteratively combining each element of the collection with an existing value [...]
- followedBy(
Iterable< int> other) → Iterable<int> inherited - Returns the lazy concatenation of this iterable and
other. [...] - forEach(
void f(int element)) → void inherited - Applies the function
fto each element of this collection in iteration order. - getRange(
int start, int end) → Iterable< int> inherited - Creates an Iterable that iterates over a range of elements. [...]
- indexOf(
int element, [int start = 0]) → int inherited - The first index of
elementin this list. [...] - indexWhere(
bool test(int element), [int start = 0]) → int inherited - The first index in the list that satisfies the provided
test. [...] - insert(
int index, int element) → void inherited - Inserts
elementat positionindexin this list. [...] - insertAll(
int index, Iterable< int> iterable) → voidinherited - Inserts all objects of
iterableat positionindexin this list. [...] - join(
[String separator = ""]) → String inherited - Converts each element to a String and concatenates the strings. [...]
- lastIndexOf(
int element, [int? start]) → int inherited - The last index of
elementin this list. [...] - lastIndexWhere(
bool test(int element), [int? start]) → int inherited - The last index in the list that satisfies the provided
test. [...] - lastWhere(
bool test(int element), {int orElse()}) → int inherited - Returns the last element that satisfies the given predicate
test. [...] - map<
T> (T f(int e)) → Iterable< T> inherited - Returns a new lazy Iterable with elements that are created by calling
fon each element of thisIterablein iteration order. [...] - noSuchMethod(
Invocation invocation) → dynamic inherited - Invoked when a non-existent method or property is accessed. [...]
- reduce(
int combine(int value, int element)) → int inherited - Reduces a collection to a single value by iteratively combining elements of the collection using the provided function. [...]
- remove(
Object? value) → bool inherited - Removes the first occurrence of
valuefrom this list. [...] - removeAt(
int index) → int inherited - Removes the object at position
indexfrom this list. [...] - removeLast(
) → int inherited - Removes and returns the last object in this list. [...]
- removeRange(
int start, int end) → void inherited - Removes a range of elements from the list. [...]
- removeWhere(
bool test(int element)) → void inherited - Removes all objects from this list that satisfy
test. [...] - replaceRange(
int start, int end, Iterable< int> replacement) → voidinherited - Replaces a range of elements with the elements of
replacement. [...] - retainWhere(
bool test(int element)) → void inherited - Removes all objects from this list that fail to satisfy
test. [...] - setAll(
int index, Iterable< int> iterable) → voidinherited - Overwrites elements with the objects of
iterable. [...] - setRange(
int start, int end, Iterable< int> iterable, [int skipCount = 0]) → voidinherited - Writes some elements of
iterableinto a range of this list. [...] - shuffle(
[Random? random]) → void inherited - Shuffles the elements of this list randomly.
- singleWhere(
bool test(int element), {int orElse()}) → int inherited - Returns the single element that satisfies
test. [...] - skip(
int count) → Iterable< int> inherited - Returns an Iterable that provides all but the first
countelements. [...] - skipWhile(
bool test(int value)) → Iterable< int> inherited - Returns an
Iterablethat skips leading elements whiletestis satisfied. [...] - sort(
[int compare(int a, int b)]) → void inherited - Sorts this list according to the order specified by the
comparefunction. [...] - sublist(
int start, [int? end]) → Uint8ClampedList override - Returns a new list containing the elements between
startandend. [...] - take(
int count) → Iterable< int> inherited - Returns a lazy iterable of the
countfirst elements of this iterable. [...] - takeWhile(
bool test(int value)) → Iterable< int> inherited - Returns a lazy iterable of the leading elements satisfying
test. [...] - toList(
{bool growable = true}) → List< int> inherited - Creates a List containing the elements of this Iterable. [...]
- toSet(
) → Set< int> inherited - Creates a Set containing the same elements as this iterable. [...]
- toString(
) → String inherited - A string representation of this object. [...]
- where(
bool test(int element)) → Iterable< int> inherited - Returns a new lazy Iterable with all elements that satisfy the predicate
test. [...] - whereType<
T> () → Iterable< T> inherited - Returns a new lazy Iterable with all elements that have type
T. [...]
Operators
- operator +(
List< int> other) → List<int> inherited - Returns the concatenation of this list and
other. [...] - operator ==(
Object other) → bool inherited - The equality operator. [...]
- operator [](
int index) → int inherited - The object at the given
indexin the list. [...] - operator []=(
int index, int value) → void inherited - Sets the value at the given
indexin the list tovalue. [...]
Constants
- bytesPerElement → const int
-
1
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https://api.dart.dev/stable/2.13.0/dart-typed_data/Uint8ClampedList-class.html