SetObs<E> class

实现了 Set 集合所有方法的响应式变量

Inheritance
Implemented types
Available extensions

Constructors

SetObs(Set<E> value, {bool autoNotify = true, ValueChanged<Set<E>>? onChanged, bool? immediate, String? cacheKey, ElSerialize? serialize, ElStorage? storage})

Properties

autoNotify ↔ bool
变量发生更新时自动通知 UI 更新，若你想手动执行 notify 通知 UI 更新，可以将其设置为 false。 此属性允许在任意地方动态修改它。
getter/setter pairinherited
cacheKey → String?
本地缓存 key，如果不为 null，每次更新变量时会将值缓存到本地，请保证 key 唯一
finalinherited
expire → Duration?
设置本地持久化的过期时间
finalinherited
first → E
The first element.
no setteroverride
firstOrNull → T?

Available on Iterable<T>, provided by the IterableExtensions extension

The first element of this iterator, or null if the iterable is empty.
no setter
hashCode → int
The hash code for this object.
no setterinherited
hasListeners → bool
Whether any listeners are currently registered.
no setterinherited
immediate → bool?
是否立即执行一次 onChanged 监听函数
finalinherited
indexed → Iterable<(int, T)>

Available on Iterable<T>, provided by the IterableExtensions extension

Pairs of elements of the indices and elements of this iterable.
no setter
isEmpty → bool
Whether this collection has no elements.
no setteroverride
isNotEmpty → bool
Whether this collection has at least one element.
no setteroverride
iterator → Iterator<E>
An iterator that iterates over the elements of this set.
no setteroverride
keepAliveTime ↔ Duration?
getter/setter pairinherited
last → E
The last element.
no setteroverride
lastOrNull → T?

Available on Iterable<T>, provided by the IterableExtensions extension

The last element of this iterable, or null if the iterable is empty.
no setter
length → int
The number of elements in this Iterable.
no setteroverride
nonNulls → Iterable<T>

Available on Iterable<T?>, provided by the NullableIterableExtensions extension

The non-null elements of this iterable.
no setter
obsBuilders → Set<VoidCallback>
记录已绑定的 ObsBuilder 小部件的刷新方法
finalinherited
onChanged → ValueChanged<Set<E>>?
创建响应式变量时立即绑定监听函数
finalinherited
rawValue ↔ Set<E>
直接访问原始 _value 避免触发副作用函数
getter/setter pairinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
serialize → ElSerialize?
对象序列化接口，本地储存只允许基本数据类型，当响应式变量类型为对象时，你需要提供一个转换器，否则持久化时会抛出异常， 不过，如果对象实现了 ElSerialize、ElSerializeModel 接口，那么你无需指定此参数。
finalinherited
single → E
Checks that this iterable has only one element, and returns that element.
no setteroverride
singleOrNull → T?

Available on Iterable<T>, provided by the IterableExtensions extension

The single element of this iterator, or null.
no setter
storage → ElStorage
如果自定义本地存储为 null，那么将使用响应式变量默认的本地存储对象
no setterinherited
value ↔ Set<E>
访问响应式变量，它会与 ObsBuilder 自动进行绑定
getter/setter pairinherited
wait → Future<List<T>>

Available on Iterable<Future<T>>, provided by the FutureIterable extension

Waits for futures in parallel.
no setter

Methods

add(E value) → bool
Adds value to the set.
override
addAll(Iterable<E> elements) → void
Adds all elements to this set.
override
addListener(VoidCallback listener) → void
Register a closure to be called when the object changes.
inherited
any(bool test(E element)) → bool
Checks whether any element of this iterable satisfies test.
override
asNameMap() → Map<String, T>

Available on Iterable<T>, provided by the EnumByName extension

Creates a map from the names of enum values to the values.
bindBuilders() → void
将响应式变量与 ObsBuilder 进行绑定
inherited
byName(String name) → T

Available on Iterable<T>, provided by the EnumByName extension

Finds the enum value in this list with name name.
cast<R>() → Set<R>
Provides a view of this set as a set of R instances.
override
clear() → void
Removes all elements from the set.
override
contains(Object? element) → bool
Whether value is in the set.
override
containsAll(Iterable<Object?> other) → bool
Whether this set contains all the elements of other.
override
difference(Set<Object?> other) → Set<E>
Creates a new set with the elements of this that are not in other.
override
dispose() → void
销毁响应式变量，如果 Obs 为局部状态（在 State 中创建），请在符合以下条件销毁它们：
inherited
elementAt(int index) → E
Returns the indexth element.
override
elementAtOrNull(int index) → T?

Available on Iterable<T>, provided by the IterableExtensions extension

The element at position index of this iterable, or null.
every(bool test(E element)) → bool
Checks whether every element of this iterable satisfies test.
override
execAutoNotify() → void
执行通知副作用函数前判断是否启用了 autoNotify
inherited
expand<T>(Iterable<T> toElements(E element)) → Iterable<T>
Expands each element of this Iterable into zero or more elements.
override
firstWhere(bool test(E element), {E orElse()?}) → E
The first element that satisfies the given predicate test.
override
fold<T>(T initialValue, T combine(T previousValue, E element)) → T
Reduces a collection to a single value by iteratively combining each element of the collection with an existing value
override
followedBy(Iterable<E> other) → Iterable<E>
Creates the lazy concatenation of this iterable and other.
override
forEach(void action(E element)) → void
Invokes action on each element of this iterable in iteration order.
override
initLocalValue() → Set<E>?
获取本地缓存值，这是一个默认实现，对于 List、Map 集合，其相应的 Obs 会覆写此方法
override
intersection(Set<Object?> other) → Set<E>
Creates a new set which is the intersection between this set and other.
override
join([String separator = ""]) → String
Converts each element to a String and concatenates the strings.
override
lastWhere(bool test(E element), {E orElse()?}) → E
The last element that satisfies the given predicate test.
override
lookup(Object? object) → E?
If an object equal to object is in the set, return it.
override
map<T>(T toElement(E e)) → Iterable<T>
The current elements of this iterable modified by toElement.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notify() → void
执行所有副作用监听函数、包括 UI 页面刷新
inherited
notifyChanged() → void
执行 onChanged 监听函数
inherited
notifyListeners() → void
Call all the registered listeners.
inherited
reduce(E combine(E value, E element)) → E
Reduces a collection to a single value by iteratively combining elements of the collection using the provided function.
override
remove(Object? value) → bool
Removes value from the set.
override
removeAll(Iterable<Object?> elements) → void
Removes each element of elements from this set.
override
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that are notified when the object changes.
inherited
removeWhere(bool test(E element)) → void
Removes all elements of this set that satisfy test.
override
retainAll(Iterable<Object?> elements) → void
Removes all elements of this set that are not elements in elements.
override
retainWhere(bool test(E element)) → void
Removes all elements of this set that fail to satisfy test.
override
singleWhere(bool test(E element), {E orElse()?}) → E
The single element that satisfies test.
override
skip(int count) → Iterable<E>
Creates an Iterable that provides all but the first count elements.
override
skipWhile(bool test(E value)) → Iterable<E>
Creates an Iterable that skips leading elements while test is satisfied.
override
take(int count) → Iterable<E>
Creates a lazy iterable of the count first elements of this iterable.
override
takeWhile(bool test(E value)) → Iterable<E>
Creates a lazy iterable of the leading elements satisfying test.
override
toList({bool growable = true}) → List<E>
Creates a List containing the elements of this Iterable.
override
toSet() → Set<E>
Creates a Set with the same elements and behavior as this Set.
override
toString() → String
当直接当作字符串插入时，无需指定 .value
inherited
union(Set<E> other) → Set<E>
Creates a new set which contains all the elements of this set and other.
override
where(bool test(E element)) → Iterable<E>
Creates a new lazy Iterable with all elements that satisfy the predicate test.
override
whereType<T>() → Iterable<T>
Creates a new lazy Iterable with all elements that have type T.
override

Operators

operator ==(Object other) → bool
The equality operator.
inherited