DisplayObjectChildren<T extends DisplayObject> class
Null safety
This class is returned by the DisplayObjectParent.children getter.
It implements an Iterable of display objects and therefore allows an easy iteration over the children of a DisplayObjectParent.
- Inheritance
- Object
- Iterable<
T> - IterableBase<
T> - DisplayObjectChildren
- Available Extensions
Properties
- first → T
-
Returns the first element. [...]
read-only, inherited
- hashCode → int
-
The hash code for this object. [...]
read-only, inherited
- isEmpty → bool
-
Returns
true
if there are no elements in this collection. [...]read-only, inherited - isNotEmpty → bool
-
Returns true if there is at least one element in this collection. [...]
read-only, inherited
-
iterator
→ Iterator<
T> -
Returns a new
Iterator
that allows iterating the elements of thisIterable
. [...]read-only, override - last → T
-
Returns the last element. [...]
read-only, inherited
- length → int
-
Returns the number of elements in this. [...]
read-only, inherited
-
parent
→ DisplayObjectParent<
DisplayObject> -
final
-
reversed
→ Iterable<
T> -
read-only
- runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
- single → T
-
Checks that this iterable has only one element, and returns that element. [...]
read-only, inherited
Methods
-
add(
T displayObject) → void -
addAll(
Iterable< T> displayObjects) → void -
any(
bool test(T element)) → bool -
Checks whether any element of this iterable satisfies
test
. [...]inherited -
cast<
R> () → Iterable< R> -
Provides a view of this iterable as an iterable of
R
instances. [...]inherited -
clear(
) → void -
contains(
Object? element) → bool -
Whether the collection contains an element equal to
element
. [...]inherited -
elementAt(
int index) → T -
Returns the
index
th element. [...]inherited -
every(
bool test(T element)) → bool -
Checks whether every element of this iterable satisfies
test
. [...]inherited -
expand<
T> (Iterable< T> f(T element)) → Iterable<T> -
Expands each element of this Iterable into zero or more elements. [...]
inherited
-
firstWhere(
bool test(T element), {T orElse()?}) → T -
Returns the first element that satisfies the given predicate
test
. [...]inherited -
fold<
T> (T initialValue, T combine(T previousValue, T element)) → T -
Reduces a collection to a single value by iteratively combining each
element of the collection with an existing value [...]
inherited
-
followedBy(
Iterable< T> other) → Iterable<T> -
Returns the lazy concatenation of this iterable and
other
. [...]inherited -
forEach(
void f(T element)) → void -
Applies the function
f
to each element of this collection in iteration order.inherited -
indexOf(
T displayObject) → int -
insert(
int index, T displayObject) → void -
insertAll(
int index, Iterable< T> displayObjects) → void -
join(
[String separator = ""]) → String -
Converts each element to a String and concatenates the strings. [...]
inherited
-
lastWhere(
bool test(T element), {T orElse()?}) → T -
Returns the last element that satisfies the given predicate
test
. [...]inherited -
map<
T> (T f(T e)) → Iterable< T> -
Returns a new lazy Iterable with elements that are created by
calling
f
on each element of thisIterable
in iteration order. [...]inherited -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed. [...]
inherited
-
reduce(
T combine(T value, T element)) → T -
Reduces a collection to a single value by iteratively combining elements
of the collection using the provided function. [...]
inherited
-
remove(
T displayObject) → bool -
removeAt(
int index) → T -
removeLast(
) → T -
removeRange(
int start, int end) → void -
singleWhere(
bool test(T element), {T orElse()?}) → T -
Returns the single element that satisfies
test
. [...]inherited -
skip(
int count) → Iterable< T> -
Returns an Iterable that provides all but the first
count
elements. [...]inherited -
skipWhile(
bool test(T value)) → Iterable< T> -
Returns an
Iterable
that skips leading elements whiletest
is satisfied. [...]inherited -
take(
int count) → Iterable< T> -
Returns a lazy iterable of the
count
first elements of this iterable. [...]inherited -
takeWhile(
bool test(T value)) → Iterable< T> -
Returns a lazy iterable of the leading elements satisfying
test
. [...]inherited -
toList(
{bool growable = true}) → List< T> -
Creates a List containing the elements of this Iterable. [...]
inherited
-
toSet(
) → Set< T> -
Creates a Set containing the same elements as this iterable. [...]
inherited
-
toString(
) → String -
Returns a string representation of (some of) the elements of
this
. [...]inherited -
where(
bool test(T element)) → Iterable< T> -
Returns a new lazy Iterable with all elements that satisfy the
predicate
test
. [...]inherited -
whereType<
T> () → Iterable< T> -
Returns a new lazy Iterable with all elements that have type
T
. [...]inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator. [...]
inherited
-
operator [](
int index) → T -
operator []=(
int index, T displayObject) → void