EventDispatcher:addEventListener
From GiderosMobile
Available since: Gideros 2011.6
Class: EventDispatcher
Description
Registers a listener function and an optional data value so that the listener function is called when an event of a particular type occurs.
EventDispatcher:addEventListener(type,listener,data)
Parameters
type: (string) the type of event
listener: (function) the listener function that processes the event
data: (any) an optional data parameter that is passed as a first argument to the listener function optional
Example
local function callback(data, e)
data = data or {}
data.source = data.source or Pixel.new(0x00ff00, 1, 64, 64)
data.source.sx = data.source.sx or 1
data.source.sy = data.source.sy or 1
local x = e.touch.x
local y = e.touch.y
end
local pix = Pixel.new(0xff00ff, 1, 64, 64)
pix.sx = pix:getScaleX()
pix.sy = pix:getScaleY()
stage:addChild(pix)
stage:addEventListener(Event.TOUCHES_END, callback, { source=pix, }) -- type,listener,data
