BoolObs class
- Inheritance
-
- Object
- ChangeNotifier
- ValueNotifier<
bool> - Obs<
bool> - BoolObs
Constructors
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
- 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
- keepAliveTime ↔ Duration?
-
getter/setter pairinherited
-
obsBuilders
→ Set<
VoidCallback> -
记录已绑定的 ObsBuilder 小部件的刷新方法
finalinherited
-
onChanged
→ ValueChanged<
bool> ? -
创建响应式变量时立即绑定监听函数
finalinherited
- rawValue ↔ bool
-
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 - 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 ↔ bool
-
访问响应式变量,它会与 ObsBuilder 自动进行绑定
getter/setter pairinherited
Methods
-
addListener(
VoidCallback listener) → void -
Register a closure to be called when the object changes.
inherited
-
bindBuilders(
) → void -
将响应式变量与 ObsBuilder 进行绑定
inherited
-
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
-
execAutoNotify(
) → void -
执行通知副作用函数前判断是否启用了 autoNotify
inherited
-
initLocalValue(
) → bool? -
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
inherited
-
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
-
removeListener(
VoidCallback listener) → void -
Remove a previously registered closure from the list of closures that are
notified when the object changes.
inherited
-
reversed(
) → void - 反转 bool 值并通知监听函数
-
toString(
) → String -
当直接当作字符串插入时,无需指定 .value
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited