value property
The current value stored in this notifier.
When the value is replaced with something that is not equal to the old value as evaluated by the equality operator ==, this class notifies its listeners.
Implementation
@override
T get value => _value;
Implementation
@override
set value(T newValue) {
if (newValue == _value) {
return;
}
_value = newValue;
notifyListeners();
_onValueChanged();
}