Listenable class
An object that maintains a list of listeners.
- Implemented by
Constructors
- Listenable()
-
Abstract const constructor. This constructor enables subclasses to provide
const constructors so that they can be used in const expressions.
const
-
Listenable.merge(List<
Listenable> listenables) -
Return a Listenable that triggers when any of the given Listenables
themselves trigger. [...]
factory
Properties
- hashCode → int
-
The hash code for this object. [...]
read-only, inherited
- runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
Methods
-
addListener(
VoidCallback listener) → void - Register a closure to be called when the object notifies its listeners.
-
removeListener(
VoidCallback listener) → void - Remove a previously registered closure from the list of closures that the object notifies.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed. [...]
inherited
-
toString(
) → String -
Returns a string representation of this object.
inherited
Operators
-
operator ==(
dynamic other) → bool -
The equality operator. [...]
inherited