AdvancedValueNotifier<T> class
- Inheritance
-
- Object
- ChangeNotifier
- NotifierBase<
T> - ValueNotifierBase<
T> - AdvancedValueNotifier
- Mixed in types
Constructors
-
AdvancedValueNotifier(T _value, {EqualityComparator<
T> ? comparator})
Properties
-
comparator
→ EqualityComparator<
T> ? -
A custom comparator that can be used to determine if a new value
for value is equal to the current value or not. This is used in
the setter for value and if the new value is equal to the current
one, then the current value will not be changed and therefore no
listeners will be notified.
final
- 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.
getter/setter pairoverride
Methods
-
addListener(
VoidCallback listener) → void -
Register a closure to be called when the object changes.
inherited
-
addValueListener(
ValueCallback< T> listener) → void -
inherited
-
dispose(
) → void -
Discards any resources used by the object. After this is called, the
object is not in a usable state and should be discarded (calls to
addListener will throw after the object is disposed).
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
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
-
removeValueListener(
ValueCallback< T> listener) → void -
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited