cocos2d-lua 手游之好友系统

                                                                                好友系统

特此声明：由于本人只完成了好友系统的demo，所以此好友系统和服务器没有任何交互。

本人只实现了如下几个功能，具体需求自行扩充

1.申请好友列表有接受，不接受两个选项

2.可查询自己已经在好友列表里面的好友

3.好友列表可查看信息（未详细完成）

首先好友的信息全部由FriendManager进行管理 

FriendStruct设置好友信息

ListViewTool 实现让ListView实现TableView的功能（只加载显示区域的item）

FriendStruct=class("FriendStruct")

function FriendStruct:ctor(data)if not data then   returnendself.user_id=data.user_id or self.user_idself.user_name=data.user_name or self.user_name or ""self.user_age=data.user_age or self.user_age or ""self.user_level=data.user_level or self.user_level or ""self.daily_world=data.daily_world or self.daily_world or ""end---获取用户IDfunction FriendStruct:getUserID()return self.user_idend---获取用户的名字function FriendStruct:getUserName()return self.user_nameend---获取用户的agefunction FriendStruct:getUserAge()return self.user_ageend---获取用户的等级function FriendStruct:getUserLevel()return self.user_levelend---获取用户的签名function FriendStruct:getUserDailyWorld()return self.daily_worldend---移除用户的Namefunction FriendStruct:removeUserName()self.user_name=""end---移除用户的agefunction FriendStruct:removeUserAge()self.user_age=""end---移除用户的user_levelfunction FriendStruct:removeUserLevel()self.user_level=""end---移除用户的daily_worldfunction FriendStruct:removeDailyWorld()self.daily_world=""endfunction FriendStruct:updateData(data)self:ctor(data)endfunction FriendStruct:onRelease()endreturn FriendStruct

FriendMgr 的具体实现

local FriendStruct=require("app.Test.FriendStruct")

FriendsManager=class("FreiendsManager")local _instance=nillocal _friends_map=nillocal _invite_friends_map=nilfunction FriendsManager:ctor()_friends_map={}_invite_friends_map={}endfunction FriendsManager:getInstance()if _instance==nil then   _instance=FriendsManager.new()endreturn _instanceend--------------------------------------邀请好友数据---------------------------------------------------------function FriendsManager:addInviteFriends(invite_friend_data_map)if not invite_friend_data_map thenreturnendfor data_index,invite_friend_data in pairs(invite_friend_data_map) doinvite_friend_data=invite_friend_data_map[data_index]if not invite_friend_data thenreturnendif not invite_friend_data.user_id thenreturnend_invite_friends_map[invite_friend_data.user_id]=FriendStruct.new(invite_friend_data)end-- dump(DataCenter)DataCenter:sendMsg(DataEvent.FRIEND.FRIENDSHENQ, param)endfunction FriendsManager:getInviteFriends()if not _invite_friends_map thenreturnendlocal invite_friends_data =self:setDateToList(_invite_friends_map)if not invite_friends_data thenreturnendlocal invite_friends_sort_data=nilif #invite_friends_data >=2 theninvite_friends_sort_data=self:setSortData(invite_friends_data)elseinvite_friends_sort_data=invite_friends_dataendreturn invite_friends_sort_dataendfunction FriendsManager:removeInviteFriendsById(friend_tag)if not _invite_friends_map thenreturnend_invite_friends_map[friend_tag]=nilendfunction FriendsManager:removeAllInviteFriends()if not _invite_friends_map thenreturnend_invite_friends_map=nilendfunction FriendsManager:getInviteNameById(friend_tag)if not _invite_friends_map thenreturnendif not _invite_friends_map[friend_tag] thenreturnendreturn _invite_friends_map[friend_tag]:getUserName()end---------------------------------------------好友数据---------------------------------------------------function FriendsManager:addFriends(friend_data)if not friend_data thenreturnendif not friend_data.user_id thenreturnend_friends_map[friend_data.user_id]=FriendStruct.new(friend_data)DataCenter:sendMsg(DataEvent.FRIEND.FRIENDS, param)endfunction FriendsManager:getFriendsData()if not _friends_map thenreturnendlocal friends_data =self:setDateToList(_friends_map)if not friends_data thenreturnendlocal friends_sort_data=nilif #friends_data >=2 thenfriends_sort_data=self:setSortData(friends_data)elsefriends_sort_data=friends_dataendreturn friends_sort_dataendfunction FriendsManager:removeFriends(friend_tag)if not _friends_map thenreturnend_friends_map[friend_tag]=nilendfunction FriendsManager:removeAllFriends()if not _friends_map thenreturnend_friends_map={}endfunction FriendsManager:getFriendByTag(friend_tag)if not _friends_map thenreturnendif not _friends_map[friend_tag] thenreturnendreturn _friends_map[friend_tag]endfunction FriendsManager:getFriendNameByTag(friend_tag)if not _friends_map thenreturnendif not _friends_map[friend_tag] thenreturnendreturn _friends_map[friend_tag]:getUserName()end-- function FriendsManager:getFriendAgeByTag(friend_tag)-- if not _friends_map then-- return-- end-- if not _friends_map[friend_tag] then-- return-- end-- return _friends_map[friend_tag]:getUserAge()-- end-- function FriendsManager:getFriendLevelByTag(friend_tag)-- if not _friends_map then-- return-- end-- if not _friends_map[friend_tag] then-- return-- end-- return _friends_map[friend_tag]:getUserLevel()-- endfunction FriendsManager:removeFriendNameByTag(friend_tag)if not _friends_map thenreturnendif not _friends_map[friend_tag] thenreturnendreturn _friends_map[friend_tag]:removeUserName()endfunction FriendsManager:setSortData(friend_data)if not friend_data thenreturnendtable.sort(friend_data,function(a,b)return (a.user_id<b.user_id) end)return friend_dataendfunction FriendsManager:setDateToList(_friends_map)if not _friends_map thenreturnendlocal friend_data_list={}for index,friend_data in pairs(_friends_map) dotable.insert(friend_data_list,friend_data)endreturn friend_data_listendfunction FriendsManager:updateData(data)if not data thenreturnendif not _friends_map thenreturnendif not data.user_id thenreturnendif not _friends_map[data.user_id] thenself:addFriends(data)end_friends_map[data.user_id]:updateData(data)endfunction FriendsManager:onRelease()_friends_map={}_invite_friends_map={}end

UIFriendLayer

local scheduler = require("framework.scheduler")require("app.Test.FriendsManager")local ListViewTool=require("app.Test.ListViewTool")UIFriendLayer=class("UIFriendLayer", function()    return  display.newLayer()end)UIFriendLayer.FILE_NAME= "csb/FriendLayer.csb"function UIFriendLayer:ctor()endfunction UIFriendLayer:onCreate()    DataCenter:addRegister(self)    self:init()endfunction UIFriendLayer:init()    local replace_node=cc.uiloader:seekNodeByName(self,"replace_node")    local outside_node=cc.CSLoader:createNode("csb/_outside_node.csb")    local outside_node_panel=cc.uiloader:seekNodeByName(outside_node,"_outside_panel")    outside_node:addTo(replace_node)    self:setScale(2.5)        self._haoyou_list=cc.uiloader:seekNodeByName(self,"haoyou_list")    self._shengqing_list=cc.uiloader:seekNodeByName(self,"shengqing_list")    self._chazhao_list=cc.uiloader:seekNodeByName(self,"chazhao_list")        local haoyou_button=cc.uiloader:seekNodeByName(outside_node,"haoyou_btn")    local shengqing_button=cc.uiloader:seekNodeByName(outside_node,"shengqing_btn")    local chazhao_button=cc.uiloader:seekNodeByName(outside_node,"chazhao_btn")    self._shengqing_list:setVisible(false)    self._chazhao_list:setVisible(false)        haoyou_button:addClickEventListener(handler(self, self.haoyouCallback))    shengqing_button:addClickEventListener(handler(self, self.shenqingCallback))    chazhao_button:addClickEventListener(handler(self, self.chazhaoCallback))    self._shengqing_list_panel=cc.uiloader:seekNodeByName(self,"shengqing_panel")            local add_button=cc.uiloader:seekNodeByName(self,"add_btn")    local remove_button=cc.uiloader:seekNodeByName(self,"remove_btn")       add_button:addClickEventListener(handler(self, self.add))   remove_button:addClickEventListener(handler(self, self.remove))    self._chaxun_panel=cc.uiloader:seekNodeByName(self,"chaxun_panel")    self._chaxun_panel:hide()---------------------输入框的键盘监听事件----------------    self._shuru_text=cc.uiloader:seekNodeByName(self,"shuru_Txf")    local function onkeyPressed(keycode, event)         print("keypress")         if keycode == cc.KeyCode.KEY_BACKSPACE then            local str = self._shuru_text:getStringValue()             str = string.sub( str, 0, string.len( str ) - 1 )             self._shuru_text:setString( str )                 end      end    local text_layer=display.newLayer()    text_layer:addTo(self)    local keyListener = cc.EventListenerKeyboard:create()      keyListener:registerScriptHandler(onkeyPressed,cc.Handler.EVENT_KEYBOARD_PRESSED)         text_layer:getEventDispatcher():addEventListenerWithSceneGraphPriority(keyListener,text_layer)----------------------------------------------------------------------------------------    local chaxun_button=cc.uiloader:seekNodeByName(self,"chaxun_btn")    chaxun_button:addClickEventListener(handler(self,self.serch_user))   self._shengqing_list_panel_map={}    self._haoyou_panel={}    self._event_tag=false   self._haoyou_list_panel=cc.uiloader:seekNodeByName(self,"haoyou_panel")    self._list_tool = ListViewTool:new()    self._friend_list_tool=ListViewTool:new()endfunction UIFriendLayer:destory()DataCenter:removeRegister(self)endfunction UIFriendLayer:haoyouCallback()    self._haoyou_list:setVisible(true)    self._chazhao_list:setVisible(false)    self._shengqing_list:setVisible(false)    self._chaxun_panel:hide()endfunction UIFriendLayer:shenqingCallback()    self._shengqing_list:setVisible(true)    self._haoyou_list:setVisible(false)    self._chazhao_list:setVisible(false)    self._chaxun_panel:hide()endfunction UIFriendLayer:chazhaoCallback()    self._chazhao_list:setVisible(true)    self._shengqing_list:setVisible(false)    self._haoyou_list:setVisible(false)    self._chaxun_panel:show()end--------------------------------------外来数据的加载---------------------function UIFriendLayer:add()    local _shenqing_data={}    local time=os.time()    print("---------1111111-------"..time)    for index=1,12 do        _shenqing_data[index]={user_id=index,user_name=tostring("人物"..index),user_level=5}    end    FriendsManager:getInstance():addInviteFriends(_shenqing_data)               end---------------------------------------数据进来的时候通知（接受通知）---------------function UIFriendLayer:onDataChange(eventTag, param)    -- dump(eventTag)    if eventTag== DataEvent.FRIEND.FRIENDSHENQ then        print("-----------更新申请列表---------------------")        self:upDateShenQ()           elseif eventTag== DataEvent.FRIEND.FRIENDS then        print("-----------更新好友列表--------------------")        self:upDateHaoYou()    endend-------------------------------------------通知之后的update--------------------- function UIFriendLayer:change(param)--     if self._haoyou_list:isVisible() then--         self:upDateHaoYou()--     elseif  self._shengqing_list:isVisible() then--         self:upDateShenQ()--     else--         self:upDateChaZhao()--     end-- end--[--  申请列表  需要几个要求-- 1.数据加进来的时候 插在列表的最后面-- 2.判断数据是否已经在列表里面有的无需加入 没有的话加入---- 好友列表  需要几个要去--1.数据从申请列表加进来的时候是否带ID的数据加入 还是自己按加入的顺序排序-- 如果是带ID的话 会导致工具类中加入的数据 如果没有ID项的话会出现空的panel-- （上述这条不可取）-- 如果是自己加入的话  FriendsManager 里面要进行数据的处理 --list里面动态的数据加载 需要滑动之后才会加载（有问题） 再往list里面加数据的时候会导致显示问题--获取滑动条的位置有问题--]--------------------------------------好友ListView-------------------------function UIFriendLayer:upDateHaoYou()    print(" --------------好友列表正在更新。。。-------------------")       local friends_data=FriendsManager:getInstance():getFriendsData()    print("--------------打印申请列表接受后传递过来的数据-----------")    dump(friends_data)    local itemModel =self._haoyou_list_panel:clone()    self._friend_list_tool:RegisterListView(self._haoyou_list)    self._friend_list_tool:RegisterCallback(handler(self, self.upDataFriend))    self._friend_list_tool:tableShow(itemModel,friends_data)   endfunction UIFriendLayer:upDataFriend(data,index)    local user_id=data.user_id    local user_name=FriendsManager:getInstance():getFriendNameByTag(user_id)    print("----------好友列表的----------user_id.."..user_id)    local clone_item=self._haoyou_list_panel:clone()    clone_item:getChildByName("name_text"):setString(user_name)    clone_item:getChildByName("id_text"):setString(user_id)        return clone_itemend-----------------------------------好友申请ListView------------------------function UIFriendLayer:upDateShenQ()    local sort_data=FriendsManager:getInstance():getInviteFriends()        local itemModel=self._shengqing_list_panel    self._list_tool:RegisterListView(self._shengqing_list)    self._list_tool:RegisterCallback(handler(self,self.upDateCallBack))    self._list_tool:tableShow(itemModel, sort_data)    print(os.time())end--------------------------------好友申请接受按钮回调---------------------------function UIFriendLayer:jieShouCallBack(sender)    local jieshou_button_tag=sender:getTag()    print("-----------申请列表接受按钮的tag-------------"..jieshou_button_tag)    local temp_data=self._list_tool:getLayoutByTag(jieshou_button_tag)    FriendsManager:getInstance():removeInviteFriendsById(jieshou_button_tag)    self._list_tool:removeLayoutByTag(jieshou_button_tag)        FriendsManager:getInstance():addFriends(temp_data)   end--------------------------------查找ListView（此处只查找好友列表的好友并且是单个查询）----------------------------------function UIFriendLayer:upDateChaZhao()        end-------------------------------好友申请ListView的回调--------------------------function UIFriendLayer:upDateCallBack(data,index)       local user_id=data.user_id    local user_name=FriendsManager:getInstance():getInviteNameById(user_id)    print("--------申请列表的---------------user_name.."..user_name)        local clone_item=self._shengqing_list_panel:clone()    clone_item:getChildByName("user_name_text"):setString(user_name)    clone_item:getChildByName("user_id_text"):setString(user_id)    self._jieshou_button=clone_item:getChildByName("jieshou_btn")        self._jieshou_button:setTag(index)    self._jieshou_button:addClickEventListener(handler(self,self.jieShouCallBack))    self._remove_shenqing_btn=clone_item:getChildByName("del_btn")       self._remove_shenqing_btn:setTag(index)    self._remove_shenqing_btn:addClickEventListener(handler(self,self.delItemCallBack))    return clone_itemend-------------------------------好友申请删除好友请求按钮的回调--------------------------------function UIFriendLayer:delItemCallBack(sender)    local remove_button_tag=sender:getTag()    print("----删除按钮的tag------"..remove_button_tag)    FriendsManager:getInstance():removeFriends(remove_button_tag)    self._list_tool:removeLayoutByTag(remove_button_tag)end--------------------------------外来接口移除数据----------------------------------------------function UIFriendLayer:remove()    local user_id=1    FriendsManager:getInstance():removeFriends(user_id)    dump(self._list_tool)end----------------------------------查询ListView中查询按钮的回调------------------------------function UIFriendLayer:serch_user()    local string_value=self._shuru_text:getString()        local user_name=FriendsManager:getInstance():getFriendNameByTag(tonumber(string_value))    if user_name then        self._chazhao_panel=self.shengqing_list_panel:clone()         self._chazhao_panel:getChildByName("user_name_text"):setString(tostring(user_name))        self._chazhao_list:removeAllChildren()        self._chazhao_list:pushBackCustomItem(self._chazhao_panel)    endend-----------------------------------UIFriendLayer的刷新------------------------------------function UIFriendLayer:update(dt)end

ListViewTool 的实现

local scheduler = require(cc.PACKAGE_NAME .. ".scheduler")local ListViewTool=class("ListViewTool")ListViewTool._list_view=nilListViewTool._layout_list=nilListViewTool._callback=nilListViewTool._show_layout=nilfunction ListViewTool:ctor()    self._layout_list={}    self._show_layout={}end-- 创建空白的panelfunction ListViewTool:createLayout(index,data)        local layout= ccui.Layout:create()    layout:setContentSize(self._gridSize)    layout:setVisible(true)      layout:setPosition(cc.p(0, 0))      self._layout_list[index]=layout    layout.data=data    layout:addTo(self._list_view)    layout:setTag(index)  end-- -- function ListViewTool:RegisterListView(list)    self._list_view=listendfunction ListViewTool:RegisterCallback(callback)   self._callback=callbackendfunction ListViewTool:setData(data)    dump(data)    local layout_list_num=table.nums(self._layout_list)    print("--------------列表中数据的个数-------------------"..layout_list_num)    local data_num=table.nums(data)    print("--------------数据的总数------------------"..data_num)    for index=1,data_num do        if self._layout_list[index] then            self._layout_list[index].data=data[index]        end    end    if data_num>=layout_list_num then        for index=1,data_num do                        if not self._layout_list[index] then                print("-------列表中加载第几条------"..index)                self:createLayout(index,data[index])            end                    end    else        for index=data_num,layout_list_num do            if self._layout_list[index] then                print("-------多余的item移除------------")                self:removeLayoutByTag(index)            end                endend    self:update()    self:upDateShowItem()endfunction ListViewTool:getLayoutByTag(layout_tag)    if not self._layout_list then        return    end    if not self._layout_list[layout_tag] then        return    end    if not self._layout_list[layout_tag].data then        return    end    return self._layout_list[layout_tag].dataendfunction ListViewTool:tableShow(itemModel,data) --参数说明 模型 数据    if data == nil or itemModel == nil  then          return       end        self._gridSize = itemModel:getContentSize()    self:setData(data)    dump(self._layout_list)    self._list_view:refreshView()      self._list_view:addScrollViewEventListener(handler(self, self.listViewCallBack))endfunction ListViewTool:getShowNum()          local size = self._list_view:getContentSize()      local direction = self._list_view:getDirection()      local offset = self._list_view:getItemsMargin()      local showNum = 0      if direction == cc.SCROLLVIEW_DIRECTION_HORIZONTAL then          offset = offset + self._gridSize.width          showNum = math.ceil(size.width / offset) + 4         return  showNum    elseif direction == cc.SCROLLVIEW_DIRECTION_VERTICAL then          offset = offset + self._gridSize.height              showNum = math.ceil(size.height / offset) + 4         return  showNum    else          return      endendfunction ListViewTool:listViewCallBack()     self:update()  end   function ListViewTool:getCurCount()    local cur_index=0    local innerSize = self._list_view:getInnerContainerSize()     local pos=cc.p(self._list_view:getInnerContainer():getPosition())    local offset = self._list_view:getItemsMargin()      local direction=self._list_view:getDirection()      if direction == cc.SCROLLVIEW_DIRECTION_HORIZONTAL then          cur_index=math.ceil((innerSize.width-math.abs(pos.x))/(offset + self._gridSize.width))      elseif direction == cc.SCROLLVIEW_DIRECTION_VERTICAL then          print("--------------y轴上的位置:"..pos.y)        cur_index=math.ceil((innerSize.height-math.abs(pos.y))/(offset + self._gridSize.height))     end    return cur_indexendfunction ListViewTool:releaseItemData(layout_index,layout)    if layout._isRelease then        return    end    print('--release item in row--'..layout_index)    layout._isInit = false    layout._isRelease = true    self._show_layout[layout_index]=nilendfunction ListViewTool:loadItemData(layout_index,layout)    if layout._isInit then        return    end    print('--load layout in row--'..layout_index)    layout._isInit = true    layout._isRelease = false    -- layout:setVisible(true)       local temp_node=self._callback(layout.data,layout_index)    temp_node:addTo(layout)    self._show_layout[layout_index]=layoutendfunction ListViewTool:upDateShowItem()local cur_index=self:getCurCount()    print("---------当前显示第几项-------------"..cur_index)    local showNum=self:getShowNum()    local topItem=cur_index-showNum+2    local bottomItem=cur_index+2    for layout_index,layout in pairs(self._layout_list) do        if layout_index<=bottomItem and layout_index>=topItem then            print("--------需要加载第几条-----------"..layout_index)            self:loadItemData(layout_index,layout)        else            self:releaseItemData(layout_index,layout)        end    endendfunction ListViewTool:update(dt)    print("----------------update-----------------")self:upDateShowItem()endfunction ListViewTool:removeLayoutByTag(layout_tag)    if not self._layout_list then        return    end    if not self._layout_list[layout_tag] then        return    end    self._layout_list[layout_tag]:removeFromParent()    self._layout_list[layout_tag]=nil    dump(self._layout_list)    print("---------列表中还剩余几条数据------------"..table.nums(self._show_layout))endfunction ListViewTool:clearUp()       self:removeAllItems()     self._layout_list = {}   end    function ListViewTool:getShowItems()      return self._show_layout or {} end  return ListViewTool

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其实好友系统很简单 具体可以参考上面来写 也可以进行扩展 添加其他功能 例如点击好友头像 出现一大堆的功能 具体需求依照策划来进行