cocosdx3.0 lua项目 从cocostudio中到处得ui 获取button 以及button监听

local winsize=cc.Director:getInstance():getWinSize()
local layer=cc.Layer:create()
local scene=cc.Scene:create()
n=2
local function touchEvent(sender,eventType)

cclog(sender:getTag())
if eventType == ccui.TouchEventType.began then
print("touchbegin")
elseif eventType == ccui.TouchEventType.moved then
print("Touch Move")
elseif eventType == ccui.TouchEventType.ended then
--只能出现创建一棵树
-- local sprite = layer:getChildByTag(sender:getTag())
local sprite
if sprite ==nil then
sprite = cc.Sprite:create(sender:getTag()..".png")
sprite:setPosition(300,300)
layer:addChild(sprite,3,n)
n=n+1
end
print("Touch Up")
elseif eventType == ccui.TouchEventType.canceled then
print("Touch Cancelled")
end
end

local menu = ccs.GUIReader:getInstance():widgetFromJsonFile("Menu_1.json")
layer:addChild(menu,1)
i = 2
while i <= 6 do
print("i is now " .. i)
local button2=menu:getChildByTag(i)
if button2==nil then
cclog("button2==nil")
else
button2:addTouchEventListener(touchEvent)
end
i=i+1
end  

注意在lua中需要再加上

require "Cocos2d"
require "GuiConstants" 才可以实现监听button