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unity双向滑动列表实现

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前言

好久没写博客了,或许是这段时间能力没得到提升,又或是变懒惰了。打工人,醒醒~~最近接到一个需求:玩家等级每提升1级,可领取对应奖励。看似简单的需求,却遇到了一个棘手的问题。且听我慢慢道来。

ui拼接

1.和往常一样,创建一个循环列表,命名为"v_scroll"(表明是上下滑动的),如下:

1.png

2.为步骤1的循环列表创建item子物体,命名为"scrollItemV"(同上,便于区分)。

2.1为子物体创建等级text。
2.2并创建横向奖励滑动列表(使用unity自带的滑动列表)。具体如下:

2.png

3.为步骤2的滑动列表创建子物体item,命名为"scrollItemH",作为奖励icon的展示,如下:

3.png

代码

1.新建scrolltest.lua脚本

脚本基本结构如下:

-----------------------
-----------------------
--@data2022-11-2
--@autor:爱上游戏开发
--双滑动列表
-----------------------
-----------------------
scrolltest = {}
local gopath = asseturi.getassetpath("popup", "ScrollTest")
local ui = {}
local renders = {}

function scrolltest:new()
    local view = {}
    setmetatable(view, self)
    self.__index = self
    return view
end

function scrolltest.show()
    scrolltest.go = poolManager.AddObj(gopath, Layer.UIPopup, PoolType.Popup)
    scrolltest.RefreshUI()
end

function scrolltest.RefreshUI()

end
  
function scrolltest.close()
    ui = {}
    poolManager.RemoveObj(gopath, scrolltest.go, PoolType.Popup)
end

return scrolltest

2."v_scroll"循环列表的初始化,start方法中执行:

ui.v_scroll = utils.findcom(scrolltest.go,"v_scroll", "LoopScrollRect")
ui.v_content = utils.findobj(scrolltest.go,"v_scroll/Content")
ui.v_scroll.getScrollItem = scrolltest.GetScrollItem
ui.v_scroll.refreshItem = scrolltest.RefreshItem
ui.v_scroll.returnScrollItem = scrolltest.ReturnScrollItem

function scrolltest.GetScrollItem(index)
    local key = index + 1 
    local render = {}
    render.go = poolManager.AddObj("Modules/popup/scrollItemV.prefab", ui.v_content)
    render.lv = utils.findtext(render.go,"lv")
    local trans = render.go.transform
    --生成10个子物体
    local parent = utils.findobj(render.go, "h_scroll/Viewport/Content")
    render.subItem = {}
    for i = 1, 10 do 
        render.subItem[i] = poolManager.AddObj("Modules/popup/scrollItemH.prefab", parent)
    end
    
    renders[trans] = render
    scrolltest.RefreshItem(index, trans)
    return render.go
end

function scrolltest.RefreshItem(index, trans)
    local key = index + 1
    local render = renders[trans]
    render.lv.text = "等级:"..key
    --刷新10个item
    for i,v in ipairs(render.subItem) do
        local icon = math.random(1,9)
        v:GetComponent("Image").sprite = utils.loadsprite("testicon", "2400"..icon)
    end
end

function scrolltest.ReturnScrollItem(trans)
    local go = renders[trans].go
    poolManager.RemoveObj("Modules/popup/scrollItemV.prefab", go)
end

3.填充竖向滑动列表(v_scroll),RefreshUI中执行:

ui.v_scroll.totalCount = 10
ui.v_scroll:RefillCells()

4.运行测试:

1.gif

运行发现:scrollItemV里存在横向滑动列表,层级处于竖向滑动列表的上层,竖向的滑动会被横向的覆盖,因此它只会监听横滑动,所以竖向滑动时,触碰到,肉眼可见并没有在垂直方向移动,为了解决这个问题,我们加入拖拽优化一下。

5.优化在填充竖向列表方法(GetScrollItem)里,加入如下代码:

local scrollObj = utils.findobj(render.go, "h_scroll")
utils.addonBeginDrag(scrollObj, scrolltest.ListOnBeginDrag)
utils.addonDrag(scrollObj, scrolltest.ListOnDrag)
utils.addonEndDrag(scrollObj, scrolltest.ListOnEndDrag)

并定义拖动方法:

function scrolltest.ListOnDrag(go, dragData, uguiPos)
    if dragData.delta.y ~= 0 then 
        ui.v_scroll:OnDrag(dragData)
    end
end

function scrolltest.ListOnBeginDrag(go, dragData, uguiPos)
    if dragData.delta.y ~= 0 then 
        ui.v_scroll:OnBeginDrag(dragData)
    end
end

function scrolltest.ListOnEndDrag(go, dragData, uguiPos)
        ui.v_scroll:OnEndDrag(dragData)
end

6.运行效果如下:

2.gif

完整代码如下:

-----------------------
-----------------------
--@data2022-11-2
--@autor:爱上游戏开发
--双滑动列表
-----------------------
-----------------------
scrolltest = {}
local gopath = asseturi.getassetpath("popup", "ScrollTest")
local ui = {}
local renders = {}

function scrolltest:new()
    local view = {}
    setmetatable(view, self)
    self.__index = self
    return view
end

function scrolltest.show()
    scrolltest.go = poolManager.AddObj(gopath, Layer.UIPopup, PoolType.Popup)

    ui.v_scroll = utils.findcom(scrolltest.go,"v_scroll", "LoopScrollRect")
    ui.v_content = utils.findobj(scrolltest.go,"v_scroll/Content")
    ui.v_scroll.getScrollItem = scrolltest.GetScrollItem
    ui.v_scroll.refreshItem = scrolltest.RefreshItem
    ui.v_scroll.returnScrollItem = scrolltest.ReturnScrollItem

    scrolltest.RefreshUI()
end

function scrolltest.RefreshUI()
    ui.v_scroll.totalCount = 10
    ui.v_scroll:RefillCells()
end

function scrolltest.GetScrollItem(index)
    local key = index + 1 
    local render = {}
    render.go = poolManager.AddObj("Modules/popup/scrollItemV.prefab", ui.v_content)
    render.lv = utils.findtext(render.go,"lv")
    local trans = render.go.transform
    --生成10个子物体
    local parent = utils.findobj(render.go, "h_scroll/Viewport/Content")
    render.subItem = {}
    for i = 1, 10 do 
        render.subItem[i] = poolManager.AddObj("Modules/popup/scrollItemH.prefab", parent)
    end

    local scrollObj = utils.findobj(render.go, "h_scroll")
    utils.addonBeginDrag(scrollObj, scrolltest.ListOnBeginDrag)
    utils.addonDrag(scrollObj, scrolltest.ListOnDrag)
    utils.addonEndDrag(scrollObj, scrolltest.ListOnEndDrag)
    
    renders[trans] = render
    scrolltest.RefreshItem(index, trans)
    return render.go
end

function scrolltest.RefreshItem(index, trans)
    local key = index + 1
    local render = renders[trans]
    printlog(render.lv,"lxlx ===   ???????")
    render.lv.text = "等级:"..key
    --刷新10个item
    for i,v in ipairs(render.subItem) do
        local icon = math.random(1,9)
        v:GetComponent("Image").sprite = utils.loadsprite("testicon", "2400"..icon)
    end
end

function scrolltest.ReturnScrollItem(trans)
    local go = renders[trans].go
    poolManager.RemoveObj("Modules/popup/scrollItemV.prefab", go)
end

function scrolltest.ListOnDrag(go, dragData, uguiPos)
    if dragData.delta.y ~= 0 then 
        ui.v_scroll:OnDrag(dragData)
    end
end

function scrolltest.ListOnBeginDrag(go, dragData, uguiPos)
    if dragData.delta.y ~= 0 then 
        ui.v_scroll:OnBeginDrag(dragData)
    end
end

function scrolltest.ListOnEndDrag(go, dragData, uguiPos)
        ui.v_scroll:OnEndDrag(dragData)
end
  
function scrolltest.close()
    ui = {}
    poolManager.RemoveObj(gopath, scrolltest.go, PoolType.Popup)
end

return scrolltest

两个列表均使用unity自带的滑动列表实现

ui如下:
11.png
代码如下:

-----------------------
-----------------------
--@data2022-11-2
--@autor:爱上游戏开发
--双滑动列表
-----------------------
-----------------------
scrolltest = {}
local gopath = asseturi.getassetpath("popup", "ScrollTest")
local ui = {}
local renders = {}

function scrolltest:new()
    local view = {}
    setmetatable(view, self)
    self.__index = self
    return view
end

function scrolltest.show()
    scrolltest.go = poolManager.AddObj(gopath, Layer.UIPopup, PoolType.Popup)

    ui.v_content = utils.findobj(scrolltest.go,"v_scroll/Viewport/Content")
    ui.v_scroll = utils.findobj(scrolltest.go,"v_scroll"):GetComponent("ScrollRect")

    scrolltest.RefreshUI()
end

function scrolltest.RefreshUI()
    for i=1,12 do
        local render = {}
        render.go = poolManager.AddObj("Modules/popup/scrollItemV.prefab", ui.v_content)
        render.lv = utils.findtext(render.go,"lv")
        --组件赋值
        render.lv.text = "等级:"..i
        --生成10个子物体
        local parent = utils.findobj(render.go, "h_scroll/Viewport/Content")
        render.subItem = {}
        for j = 1, 10 do 
            render.subItem[j] = poolManager.AddObj("Modules/popup/scrollItemH.prefab", parent)
            --刷新item
            local icon = math.random(1,9)
            render.subItem[j]:GetComponent("Image").sprite = utils.loadsprite("testicon", "2400"..icon)
        end

        local scrollObj = utils.findobj(render.go, "h_scroll")
        utils.addonBeginDrag(scrollObj, scrolltest.ListOnBeginDrag)
        utils.addonDrag(scrollObj, scrolltest.ListOnDrag)
        utils.addonEndDrag(scrollObj, scrolltest.ListOnEndDrag)
    end
end

function scrolltest.ListOnDrag(go, dragData, uguiPos)
    if dragData.delta.y ~= 0 then 
        ui.v_scroll:OnDrag(dragData)
    end
end

function scrolltest.ListOnBeginDrag(go, dragData, uguiPos)
    if dragData.delta.y ~= 0 then 
        ui.v_scroll:OnBeginDrag(dragData)
    end
end

function scrolltest.ListOnEndDrag(go, dragData, uguiPos)
        ui.v_scroll:OnEndDrag(dragData)
end
  
function scrolltest.close()
    ui = {}
    poolManager.RemoveObj(gopath, scrolltest.go, PoolType.Popup)
end

return scrolltest

标题:unity双向滑动列表实现
作者:shirlnGame
地址:https://www.mmzsblog.cn/articles/2022/11/03/1667439316558.html

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