Watcher<T> class abstract

A class that tells how to watch an observable T.

The Watcher class provides a mechanism to watch an observable and notify observers when the it changes.

See also:

Implementers

Constructors

Watcher.new()

Properties

hashCode int
The hash code for this object.
no setteroverride
runtimeType Type
A representation of the runtime type of the object.
no setterinherited

Methods

cancel(T observable, VoidCallback notify) → void
Stops watching observable.
canWatch(dynamic observable) bool
Whether this watcher can watch observable.
dispose(T observable) → void
Disposes this watcher.
init(T observable, VoidCallback notify) → void
Starts watching observable.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() String
A string representation of this object.
inherited

Operators

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