TransformBindableProperty<S, T> class
具有转换功能的绑定属性
- Inheritance
-
- Object
- ChangeNotifier
- BindableProperty<
T> - TransformBindableProperty
Constructors
-
TransformBindableProperty(ValueListenable<
S> source, {required T? transformer(S), required T initial, PropertyValueChanged<T> ? valueChanged}) -
创建一个具有转换功能的绑定属性，该绑定属性监视
source的值变化，当source值发生变化时使用transformer对值进行转换， 如转换结果非null，则将结果值写入属性(可能会触发notify)
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- hasListeners → bool
-
Whether any listeners are currently registered.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- value → T
-
The current value of the object. When the value changes, the callbacks
registered with addListener will be invoked.
no setteroverride
Methods
-
addListener(
VoidCallback listener) → void -
Register a closure to be called when the object changes.
inherited
-
dispose(
) → void -
dispose
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
notify(
) → void -
发送通知
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
-
toString(
) → String -
A string representation of this object.
inherited
-
transform<
T> ({required T? transformer(T), required T initial, PropertyValueChanged< T> ? valueChanged}) → BindableProperty<T> -
从当前绑定属性转换到一个新的绑定属性
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited