Cocos2d-x lua 面向对象封装的一个简单弹出框

cocos2d-x 3.2的版本。

。。有2种类型：只有确定按钮、有确定和取消按钮

确定和取消按钮中的确定可以执行回调函数，标签可以自动换行，前提是在IOS模拟器上运行，mac下的模拟器看不出效果，功能比较简单，基本功能是实现了，交互上不是很好，还得改进，点击对话框外面的区域，对话框也会消失，可自行修改实现自己的需求。

继承于Layer，用类的方式写的，写的不是很好，望大神们多多指教。

代码奉上，比较简单：

require "Cocos2d"require "Cocos2dConstants"-- 按钮类型-- 1代表只有确定按钮的对话框-- 2代表有确定和取消按钮的对话框local MSG_BOX_OK = 1local MSG_BOX_OK_CANCEL =2local msgBoxLayer = class("msgBoxLayer",function()    return cc.Layer:create()end)function msgBoxLayer:create(dtype, text, callbackfunc)    local layer = msgBoxLayer.new(dtype,text,callbackfunc)    return layerend--初始化function msgBoxLayer:ctor(dtype,text,callbackfunc)    print("MsgBox:ctor_dtype=",dtype,"MsgBox:ctor_text=",text,"MsgBox:ctor_callback",callbackfunc)    self.dtype = dtype    self.text = text    self.callbackfunc = callbackfunc    self.winSize = cc.Director:getInstance():getWinSize()    self:setVisible(true)    self:setLocalZOrder(999)    self:setContentSize(self.winSize)    local listener = cc.EventListenerTouchOneByOne:create()    local function onTouchBegan(touch, event)        return self:onTouchBegan(touch,event)    end    local function onTouchMoved(touch,event)    self:onTouchMoved(touch,event)    end    local function onTouchEnded(touch,event)    self:onTouchEnded(touch,event)    end    listener:registerScriptHandler(onTouchBegan,cc.Handler.EVENT_TOUCH_BEGAN)    listener:registerScriptHandler(onTouchMoved,cc.Handler.EVENT_TOUCH_MOVED)    listener:registerScriptHandler(onTouchEnded,cc.Handler.EVENT_TOUCH_ENDED)    listener:setSwallowTouches(true)    local eventDispatcher = self:getEventDispatcher()    eventDispatcher:addEventListenerWithSceneGraphPriority(listener, self)    self:createMsgBox()endfunction msgBoxLayer:createMsgBox()    local background = cc.Scale9Sprite:create("trans_yellow.png")    self.bg = background      local label = ccui.Text:create()    label:setTextAreaSize(cc.size(350,0))    label:setFontName("Helvetica")    label:setColor(cc.c3b(0,255,255))    label:setFontSize(20)    label:setTextHorizontalAlignment(cc.TEXT_ALIGNMENT_LEFT)    label:setTextVerticalAlignment(cc.VERTICAL_TEXT_ALIGNMENT_CENTER)    label:setString(self.text)    local labelContentSize = label:getTextAreaSize();    local msgBoxHeight = labelContentSize.height + 200    background:setContentSize(cc.size(400,msgBoxHeight))    background:setPosition(cc.p(self.winSize.width/2,self.winSize.height/2))    self:addChild(background)        local contentSize = background:getContentSize()    label:setPosition(cc.p(labelContentSize.width-150,msgBoxHeight-50))    background:addChild(label,1)        --关闭弹出框    local function cancelMsgBoxEvent(sender, eventType)        if eventType == ccui.TouchEventType.ended then            self:removeFromParent(true)        end    end    --执行回调函数，并关闭弹出框    local function okMsgBoxEvent(sender, eventType)        if eventType == ccui.TouchEventType.ended then            if self.callbackfunc then                self.callbackfunc()            end            self:removeFromParent(true)        end    end        --创建只有确定按钮的弹出框    if self.dtype == MSG_BOX_OK then                local okButton = ccui.Button:create()        background:addChild(okButton)        okButton:loadTextures("public_btn_1_000.png","","")        okButton:setPosition(cc.p(contentSize.width/2,50))        okButton:setTouchEnabled(true)        okButton:addTouchEventListener(cancelMsgBoxEvent)        local okButtonSize = okButton:getContentSize()        local okButtonLabel = cc.Sprite:create()        okButtonLabel:setTexture("confirm.png")        okButtonLabel:setPosition(cc.p(okButtonSize.width/2,okButtonSize.height/2))        okButton:addChild(okButtonLabel)            --创建具有确定和取消按钮的弹出框        elseif self.dtype == MSG_BOX_OK_CANCEL then        local okButton = ccui.Button:create()        background:addChild(okButton)        okButton:loadTextures("public_btn_1_000.png","","")        okButton:setTouchEnabled(true)        okButton:setPosition(cc.p(contentSize.width/2-100,50))        okButton:addTouchEventListener(okMsgBoxEvent)        local okButtonSize = okButton:getContentSize()        local okButtonLabel = cc.Sprite:create()        okButtonLabel:setTexture("confirm.png")        okButtonLabel:setPosition(cc.p(okButtonSize.width/2,okButtonSize.height/2))        okButton:addChild(okButtonLabel)                local cancelButton = ccui.Button:create()        background:addChild(cancelButton)        cancelButton:loadTextures("public_btn_2_000.png","","")        cancelButton:setTouchEnabled(true)        cancelButton:setPosition(cc.p(contentSize.width/2+100,50))        cancelButton:addTouchEventListener(cancelMsgBoxEvent)        local cancelButtonSize = cancelButton:getContentSize()        local cancelButtonLabel = cc.Sprite:create()        cancelButtonLabel:setTexture("cancel.png")        cancelButtonLabel:setPosition(cc.p(cancelButtonSize.width/2,cancelButtonSize.height/2))        cancelButton:addChild(cancelButtonLabel)    endendfunction msgBoxLayer:onTouchBegan(touch, event)    return trueendfunction msgBoxLayer:onTouchEnded(touch, event)    local curLocation = self:convertToNodeSpace(touch:getLocation())local rect = self.bg:getBoundingBox()if cc.rectContainsPoint(rect, curLocation) then   print("point in rect")else   self:removeFromParent(true)endendfunction msgBoxLayer:onTouchMoved(touch, event)endreturn msgBoxLayer