Class cc.EventListener

Defined in: CCEventListener.js
Extends cc.Class

Class Summary
Constructor Attributes	Constructor Name and Description
	cc.EventListener() The base class of event listener.

Method Summary

Method Attributes	Method Name and Description
	checkAvailable() Checks whether the listener is available.
	clone() Clones the listener, its subclasses have to override this method.
<static>	cc.EventListener.create(argObj) Create a EventListener object by json object
	ctor(type, listenerID, callback) Initializes event with type and callback function
	retain() Currently JavaScript Bindings (JSB), in some cases, needs to use retain and release.

Class Detail

cc.EventListener()

The base class of event listener.
If you need custom listener which with different callback, you need to inherit this class.
For instance, you could refer to EventListenerAcceleration, EventListenerKeyboard,
EventListenerTouchOneByOne, EventListenerCustom.

Method Detail

{boolean} checkAvailable()

Checks whether the listener is available.

Returns:

{boolean}
{cc.EventListener} clone()

Clones the listener, its subclasses have to override this method.

Returns:

{cc.EventListener}

<static> {cc.EventListener} cc.EventListener.create(argObj)

Create a EventListener object by json object

cc.EventListener.create({
      event: cc.EventListener.TOUCH_ONE_BY_ONE,
      swallowTouches: true,
      onTouchBegan: function (touch, event) {
          //do something
          return true;
      }
   });

Parameters:
{object} argObj: a json object

Returns:: {cc.EventListener}

ctor(type, listenerID, callback)

Initializes event with type and callback function

Parameters:

{number} type

{string} listenerID

{function} callback
retain()

Currently JavaScript Bindings (JSB), in some cases, needs to use retain and release. This is a bug in JSB, and the ugly workaround is to use retain/release. So, these 2 methods were added to be compatible with JSB. This is a hack, and should be removed once JSB fixes the retain/release bug