KeepAliveHandle class

A Listenable which can be manually triggered.

For a more convenient way to interact with AutomaticKeepAlive widgets, consider using AutomaticKeepAliveClientMixin, which uses a KeepAliveHandle internally.

Inheritance

Constructors

hashCode → int: The hash code for this object. [...]
read-only, inherited
hasListeners → bool: Whether any listeners are currently registered. [...]
@protected, read-only, inherited
runtimeType → Type: A representation of the runtime type of the object.
read-only, inherited

release() → void: Trigger the listeners to indicate that the widget no longer needs to be kept alive.
addListener(VoidCallback listener) → void: Register a closure to be called when the object changes. [...]
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 and removeListener will throw after the object is disposed). [...]
@mustCallSuper, inherited
noSuchMethod(Invocation invocation) → dynamic: Invoked when a non-existent method or property is accessed. [...]
inherited
notifyListeners() → void: Call all the registered listeners. [...]
@protected, 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: Returns a string representation of this object.
inherited