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function util.checkInvalidChar(str,symbol)
str=str or ""
local tmp,tmp1,tmp2
local i=1
while i <= #str do
tmp = string.byte(str,i)
i = i + 1
if tmp < 192 and not symbol then
if (tmp >= 48 and tmp <= 57) or (tmp>=65 and tmp<=90) or (tmp>=97 and tmp<=122) then
else
return true
end
--192及以上为双字节字符
--224~239为三字节汉字
elseif tmp >= 228 and tmp < 240 then
--此处因为汉字一从228开始,前面是其他符号可抛弃
tmp1=string.byte(str,i)
i=i+1
if tmp1>191 or tmp1<128 then
return true
end
tmp2=string.byte(str,i)
i=i+1
if tmp2>191 or tmp2<128 then
return true
end
--240及以上为四字节字符
elseif tmp>=240 then
return true
end
end
end
----------------------------------------scrollview--------------------------------------------------------
function UITool.ShowListEX(ScrollViewObj,Data,CallBack,DIR)
--做个兼容处理--
if type(Data)=="table" then
DataCount=table.nums(Data)
ScrollViewObj["Data"]=Data
else
DataCount=Data
ScrollViewObj["Data"]={}
end
ScrollViewObj:setBounceEnabled(false)
ScrollViewObj:setScrollBarEnabled(false)
ScrollViewObj:registerScriptHandler(function(e)
if e=="exit" then
ScrollViewObj["ItemMode"]:release()
for _,V in pairs(ScrollViewObj["ShowItemObjArr"]) do
V:release()
end
end
end)
if not ScrollViewObj["ItemMode"] then
ScrollViewObj["ItemMode"]=ScrollViewObj:getChildren()[1]
ScrollViewObj["ItemMode"]:retain()
end
if DIR=="H" then
return UITool.ShowListHorScroll(ScrollViewObj,DataCount,CallBack)
end
local SVHeight=ScrollViewObj:getContentSize().height
local ItemSize=ScrollViewObj["ItemMode"]:getContentSize()
local InnerHeight=math.max(SVHeight,ItemSize.height*DataCount)
ScrollViewObj:setInnerContainerSize(cc.size(ItemSize.width,InnerHeight)) --改变会触发onEvent事件--
ScrollViewObj["DataCount"]=DataCount
ScrollViewObj:removeAllChildren()
local Y=ScrollViewObj:getInnerContainerPosition().y
ScrollViewObj:setInnerContainerPosition(cc.p(0,math.min(0,Y)))
local MaxItemCount=math.ceil(SVHeight/ItemSize.height)+1
ScrollViewObj["ShowItemObjArr"]=ScrollViewObj["ShowItemObjArr"] or {}
local ItemCount=table.nums(ScrollViewObj["ShowItemObjArr"]) --已有--
for i=ItemCount+1,math.min(MaxItemCount,DataCount) do
local ItemObj=ScrollViewObj["ItemMode"]:clone()
ItemObj:setAnchorPoint(cc.p(0,0))
ItemObj:retain()
ItemObj:setContentSize(ItemSize)
table.insert(ScrollViewObj["ShowItemObjArr"],ItemObj)
end
local PreIndex = 0
ScrollViewObj.onEventCallBack=function(e,ForceRefresh)
local Y=ScrollViewObj:getInnerContainerPosition().y
local ScrollSpace=InnerHeight+Y-SVHeight
local CurIndex=math.ceil(ScrollSpace/ItemSize.height)
CurIndex=math.max(1,CurIndex)
if PreIndex~=CurIndex or ForceRefresh then
PreIndex=CurIndex
for i=1,table.nums(ScrollViewObj["ShowItemObjArr"]) do
ScrollViewObj["ShowItemObjArr"][i]:setVisible(false)
if CurIndex+i-1<=ScrollViewObj["DataCount"] then
ScrollViewObj["ShowItemObjArr"][i]:setVisible(true)
CallBack(CurIndex+i-1,ScrollViewObj["ShowItemObjArr"][i],ScrollViewObj["Data"][CurIndex+i-1])
ScrollViewObj["ShowItemObjArr"][i]:setPositionY(InnerHeight-ItemSize.height*(CurIndex+i-1))
if not ScrollViewObj["ShowItemObjArr"][i]:getParent() then
ScrollViewObj:addChild(ScrollViewObj["ShowItemObjArr"][i])
end
end
end
end
end
ScrollViewObj:onEvent(ScrollViewObj.onEventCallBack)
ScrollViewObj.onEventCallBack()
end
--------------------------------------------------------------------------------------------------------------------------------------------------------
function UITool.ShowListHorScroll(ScrollViewObj,DataCount,CallBack)
local SVWidth=ScrollViewObj:getContentSize().width
local ItemSize=ScrollViewObj["ItemMode"]:getContentSize()
local InnerWidth=math.max(SVWidth,ItemSize.width*DataCount)
if ScrollViewObj["DataCount"]~=DataCount then --先只考虑刷新前后数量不变的情况--
ScrollViewObj:setInnerContainerSize(cc.size(InnerWidth,ItemSize.height)) --改变会触发onEvent事件--
end
ScrollViewObj["DataCount"]=DataCount
ScrollViewObj:removeAllChildren()
local X=ScrollViewObj:getInnerContainerPosition().x
ScrollViewObj:setInnerContainerPosition(cc.p(math.min(0,X),0))
local MaxItemCount=math.ceil(SVWidth/ItemSize.width)+1
ScrollViewObj["ShowItemObjArr"]=ScrollViewObj["ShowItemObjArr"] or {}
local ItemCount=table.nums(ScrollViewObj["ShowItemObjArr"]) --已有--
for i=ItemCount+1,math.min(MaxItemCount,DataCount) do
local ItemObj=ScrollViewObj["ItemMode"]:clone()
ItemObj:setAnchorPoint(cc.p(0,0))
ItemObj:retain()
ItemObj:setContentSize(ItemSize)
table.insert(ScrollViewObj["ShowItemObjArr"],ItemObj)
end
local PreIndex = 0
ScrollViewObj.onEventCallBack=function(e,ForceRefresh)
local X=ScrollViewObj:getInnerContainerPosition().x
local ScrollSpace=-1*X
local CurIndex=math.ceil(ScrollSpace/ItemSize.width)
CurIndex=math.max(1,CurIndex)
if PreIndex~=CurIndex or ForceRefresh then
PreIndex=CurIndex
for i=1,table.nums(ScrollViewObj["ShowItemObjArr"]) do
ScrollViewObj["ShowItemObjArr"][i]:setVisible(false)
if CurIndex+i-1<=ScrollViewObj["DataCount"] then
ScrollViewObj["ShowItemObjArr"][i]:setVisible(true)
CallBack(CurIndex+i-1,ScrollViewObj["ShowItemObjArr"][i],ScrollViewObj["Data"][CurIndex+i-1])
ScrollViewObj["ShowItemObjArr"][i]:setPositionX(ItemSize.width*(CurIndex+i-2))
if not ScrollViewObj["ShowItemObjArr"][i]:getParent() then
ScrollViewObj:addChild(ScrollViewObj["ShowItemObjArr"][i])
end
end
end
end
end
ScrollViewObj:onEvent(ScrollViewObj.onEventCallBack)
ScrollViewObj.onEventCallBack()
end
-------------------------------------------------------------------------------------------------------------------------
function UITool.InitScrollViewPageMode(ScrollViewObj,BtnNextPage,BtnPrePage,CallBack)
ScrollViewObj:jumpToTop()
ScrollViewObj:setTouchEnabled(false)
BtnNextPage:setVisible(true)
BtnPrePage:setVisible(false)
local SVHeight=ScrollViewObj:getContentSize().height
local InnerHeight=ScrollViewObj:getInnerContainerSize().height
local SumPage=math.ceil(InnerHeight/SVHeight)
ScrollViewObj.getCurPageNum=function()
local Y=ScrollViewObj:getInnerContainerPosition().y
local ScrollSpace=InnerHeight+Y-SVHeight
return math.floor(ScrollSpace/SVHeight)+1
end
ScrollViewObj.onPage=function(n)
local Y=ScrollViewObj:getInnerContainerPosition().y
ScrollViewObj:setInnerContainerPosition(cc.p(0,Y+SVHeight*n))
end
function HandleBtnVisible()
local CurPageNum=ScrollViewObj.getCurPageNum()
BtnNextPage:setVisible(CurPageNum<SumPage)
BtnPrePage:setVisible(CurPageNum>1)
if CallBack then
CallBack(CurPageNum,SumPage)
end
end
BtnNextPage:addClickEventListener(function()
ScrollViewObj.onPage( 1)
HandleBtnVisible()
end)
BtnPrePage:addClickEventListener(function()
ScrollViewObj.onPage(-1)
HandleBtnVisible()
end)
if CallBack then
CallBack(1,SumPage)
end
end
东西不是很多，看一下就明白了,其中有一些是关于ScrollView的封装，这部分还是不错的，用得上的朋友还是可以用一下的，做个参考吧。 checkInvalidChar 是用来检测非法字的，这个还是很常见的，名字啊，聊天啊可能都能用得上
