ZdsValueController<T> class
Generic controller that can control a value that can be updated over time.
See the implementation of ZdsDateTimePicker to see how this can be used.
Constructors
- ZdsValueController({T? value})
- Creates a controller for T.
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- updateListener ↔ (void Function(T? newValue)?)
-
Should be used by the state to listen for updates from the calling widget.
getter/setter pair
- value ↔ T?
-
Gets the current value of T.
getter/setter pair
Methods
-
addListener(
void listener(T? newValue)) → void - Adds a listener to a list of listeners.
-
dispose(
) → void - Discards any active listeners. After this is called the object will not be in a usable state.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
notifyListeners(
T? value) → void - Should be used by the state to send updates to the calling widget.
-
removeListener(
void listener(T? newValue)) → void - Removes a single listener.
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited