StateController<T> class Null safety

A StateNotifier that allows modifying its state from outside.

This avoids having to make a StateNotifier subclass for simple scenarios.



StateController(T state)
Initialize the state of StateController.


debugState → T
A development-only way to access state outside of StateNotifier. [...]
read-only, inherited
hashCode int
The hash code for this object. [...]
read-only, inherited
hasListeners bool
If a listener has been added using addListener and hasn't been removed yet.
read-only, inherited
mounted bool
Whether dispose was called or not.
read-only, inherited
onError ErrorListener?
A callback for error reporting if one of the listeners added with addListener throws. [...]
read / write, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
state ↔ T
The current "state" of this StateNotifier. [...]
read / write, override
stream Stream<T>
A broadcast stream representation of a StateNotifier.
read-only, inherited


addListener(Listener<T> listener, {bool fireImmediately = true}) RemoveListener
Subscribes to this object. [...]
dispose() → void
Frees all the resources associated to this object. [...]
@mustCallSuper, inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
toString() String
A string representation of this object. [...]
update(T cb(T state)) → T
Calls a function with the current state and assign the result as new state [...]
updateShouldNotify(T old, T current) bool
Whether to notify listeners or not when state changes
@protected, inherited


operator ==(Object other) bool
The equality operator. [...]