VisibilityNotifier class

It's a class that notifies its listeners when the value of the _visible variable changes

Mixed in types

Constructors

VisibilityNotifier()

Properties

finalState bool
read-only
hashCode int
The hash code for this object.
read-onlyinherited
hasListeners bool
Whether any listeners are currently registered.
read-onlyinherited
runtimeType Type
A representation of the runtime type of the object.
read-onlyinherited
visible bool
A getter method that returns the value of the _visible variable.
read / write
visibleFinal bool
write-only

Methods

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 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
reset() → void
toString() String
A string representation of this object.
inherited

Operators

operator ==(Object other) bool
The equality operator.
inherited