cocos在layer中添加button和textField时为何不能显示

[Dreamtreasure]

cc.FileUtils:getInstance():addSearchPath("src")
cc.FileUtils:getInstance():addSearchPath("res")
require "cocos.init"

local function initView()
local director = cc.Director:getInstance()
local glView = director:getOpenGLView()
if nil==glView then
glView=cc.GLViewImpl:create("Login")
director:setOpenGLView(glView)
end
director:setOpenGLView(glView)
glView:setDesignResolutionSize(480,320,cc.ResolutionPolicy.NO_BORDER)
director:setDisplayStats(true)
director:setAnimationInterval(1.0/60)

end


local function main()
initView()
local visibleSize=cc.Director:getInstance():getVisibleSize()
local origin=cc.Director:getInstance():getVisibleOrigin()--可见OGL起始点
local function createLayer()
local loginLayer=cc.Layer:create()
--创建背景
local bg=cc.Sprite:create("login/bg.png")
bg:setPosition(visibleSize.width/2,visibleSize.height/2)
loginLayer:addChild(bg)



--创建输入框
local textField = ccui.TextField:create()
textField:setTouchEnabled(true)
textField:setFontName("fonts/Marker Felt.ttf")
textField:setFontSize(30)
textField:setPlaceHolder("input words here")
textField:setPosition(cc.p(300,300))
loginLayer:addChild(textField)


--创建密码框
local textFieldPassword = ccui.TextField:create()
textFieldPassword:setTouchEnabled(false)
textFieldPassword:setPasswordEnable(true)
textFieldPassword:setPasswordStyleText("*")
textFieldPassword:setFontName("fonts/Marker Felt.ttf")
textFieldPassword:setFontSize(30)
textFieldPassword:setPlaceHolder("input password here")
textFieldPassword:setPosition(cc.p(300,200))
loginLayer:addChild(textFieldPassword)


--添加按钮
local button = ccui.Button:create()
button:setTouchEnabled(true)
button:loadTextures("animationbuttonnormal.png", "animationbuttonpressed.png", "")
button:setPosition(cc.p(300,100))
loginLayer:addChild(button)

return loginLayer
end


local scene = cc.Scene:create()
scene:addChild(createLayer())
cc.Director:getInstance():runWithScene(scene)
end
xpcall(main,__G__TRACKBACK__)