dart:typed_data
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
elements list and copies over the values clamping when needed. [...] - 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
true if 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
Iterator that allows iterating the elements of this Iterable. [...] - last ↔ int
read / write, inherited
- Returns the last element. [...]
- length ↔ int
read / write, inherited
- Returns 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
- Returns 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
- sublist(int start, [ int end ]) → Uint8ClampedList
override
- Returns a new list containing the elements between
start and end. [...] - add(int value) → void
inherited
- Adds
value to the end of this list, extending the length by one. [...] - addAll(Iterable<int> iterable) → void
inherited
- Appends all objects of
iterable to the end of this list. [...] - any(bool test(E element)) → bool
inherited
- Checks whether any element of this iterable satisfies
test. [...] - asMap() → Map<int, int>
inherited
- Returns an unmodifiable Map view of
this. [...] - cast<R>() → List<R>
inherited
- Returns a view of this list as a list of
R instances. [...] - clear() → void
inherited
- Removes all objects from this list; the length of the list becomes zero. [...]
- contains(Object element) → bool
inherited
- Returns true if the collection contains an element equal to
element. [...] - elementAt(int index) → int
inherited
- Returns the
indexth element. [...] - every(bool test(E element)) → bool
inherited
- Checks whether every element of this iterable satisfies
test. [...] - expand<T>(Iterable<T> f(E element)) → Iterable<T>
inherited
- Expands each element of this Iterable into zero or more elements. [...]
- fillRange(int start, int end, [ int fillValue ]) → void
inherited
- Sets the objects in the range
start inclusive to end exclusive to the given fillValue. [...] - firstWhere(bool test(E element), { int orElse() }) → int
inherited
- Returns the first element that satisfies the given predicate
test. [...] - fold<T>(T initialValue, T combine(T previousValue, E 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 concatentation of this iterable and
other. [...] - forEach(void f(E element)) → void
inherited
- Applies the function
f to each element of this collection in iteration order. - getRange(int start, int end) → Iterable<int>
inherited
- Returns an Iterable that iterates over the objects in the range
start inclusive to end exclusive. [...] - indexOf(int element, [ int start = 0 ]) → int
inherited
- Returns the first index of
element in this list. [...] - indexWhere(bool test(E element), [ int start = 0 ]) → int
inherited
- Returns the first index in the list that satisfies the provided
test. [...] - insert(int index, int element) → void
inherited
- Inserts the object at position
index in this list. [...] - insertAll(int index, Iterable<int> iterable) → void
inherited
- Inserts all objects of
iterable at position index in this list. [...] - join([String separator = "" ]) → String
inherited
- Converts each element to a String and concatenates the strings. [...]
- lastIndexOf(int element, [ int start ]) → int
inherited
- Returns the last index of
element in this list. [...] - lastIndexWhere(bool test(E element), [ int start ]) → int
inherited
- Returns the last index in the list that satisfies the provided
test. [...] - lastWhere(bool test(E element), { int orElse() }) → int
inherited
- Returns the last element that satisfies the given predicate
test. [...] - map<T>(T f(E e)) → Iterable<T>
inherited
- Returns a new lazy Iterable with elements that are created by calling
f on each element of this Iterable in iteration order. [...] - noSuchMethod(Invocation invocation) → dynamic
inherited
- Invoked when a non-existent method or property is accessed. [...]
- reduce(int combine(E value, E 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
value from this list. [...] - removeAt(int index) → int
inherited
- Removes the object at position
index from this list. [...] - removeLast() → int
inherited
- Pops and returns the last object in this list. [...]
- removeRange(int start, int end) → void
inherited
- Removes the objects in the range
start inclusive to end exclusive. [...] - removeWhere(bool test(E element)) → void
inherited
- Removes all objects from this list that satisfy
test. [...] - replaceRange(int start, int end, Iterable<int> replacement) → void
inherited
- Removes the objects in the range
start inclusive to end exclusive and inserts the contents of replacement in its place. [...] - retainWhere(bool test(E element)) → void
inherited
- Removes all objects from this list that fail to satisfy
test. [...] - setAll(int index, Iterable<int> iterable) → void
inherited
- Overwrites objects of
this with the objects of iterable, starting at position index in this list. [...] - setRange(int start, int end, Iterable<int> iterable, [ int skipCount = 0 ]) → void
inherited
- Copies the objects of
iterable, skipping skipCount objects first, into the range start, inclusive, to end, exclusive, of the list. [...] - shuffle([Random random ]) → void
inherited
- Shuffles the elements of this list randomly.
- singleWhere(bool test(E 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
count elements. [...] - skipWhile(bool test(E value)) → Iterable<int>
inherited
- Returns an
Iterable that skips leading elements while test is satisfied. [...] - sort([int compare(E a, E b) ]) → void
inherited
- Sorts this list according to the order specified by the
compare function. [...] - take(int count) → Iterable<int>
inherited
- Returns a lazy iterable of the
count first elements of this iterable. [...] - takeWhile(bool test(E 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
- Returns a string representation of this object.
- where(bool test(E 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 ==(dynamic other) → bool
inherited
- The equality operator. [...]
- operator [](int index) → int
inherited
- Returns the object at the given
index in the list or throws a RangeError if index is out of bounds. - operator []=(int index, int value) → void
inherited
- Sets the value at the given
index in the list to value or throws a RangeError if index is out of bounds.
Constants
- bytesPerElement → const int
-
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