MATLAB Object-Oriented Programming

function anyMethod(obj)

...

notify(obj,'EventName');

end

end

end

Any function or method can trigger the event for a specific instance of the class defining

the event. For example, the triggerEvent method calls notify to trigger the

StateChange event:

classdef MyClass < handle

events

StateChange

end

methods

function triggerEvent(obj)

notify(obj,'StateChange')

end

end

end

Trigger the StateChange event with the triggerEvent method:

obj = MyClass;

obj.triggerEvent

Create Listener

Define a listener using the handle class handle.addlisteneror handle.listener

method. Pass a function handle for the listener callback function using one of these

syntaxes:

• addlistener(SourceOfEvent,'EventName',@functionName) — for an ordinary
  function.


• addlistener(SourceOfEvent,'EventName',@Obj.methodName) — for a method
  of Obj.


• addlistener(SourceOfEvent,'EventName',@ClassName.methodName) — for a
  static method of the class ClassName.
  ListenerObject = addlistener(SourceOfEvent,'EventName',@listenerCallback);

addlistener returns the listener object. The input arguments are:

11 Events — Sending and Responding to Messages