菜单效果

浮生A梦

local menuData = {
    {id = 1, name = "武器", subMenus = {"戒指1","项链2","手镯3"}},
    {id = 2, name = "防具", subMenus = {"戒指2","项2链","手2镯"}},
    {id = 3, name = "饰品", subMenus = {"戒指3","项3链","手镯3"}},
}

-- 记录当前展开的一级菜单索引
local currentExpandedIndex = nil

function createwin()
    local win = GUI:Win_Create("Win_1", 0, 0, 1136, 640)
    node = GUI:Node_Create(win, "node", 0, 0)
    local mainListView = GUI:ListView_Create(win, "MainListView", 100, 100, 200, 400, 1)
    GUI:ListView_setDirection(mainListView, 1)
    GUI:ListView_setGravity(mainListView, 5)  -- 设置垂直排列
    GUI:setTouchEnabled(mainListView, true)
    creatbutton(mainListView)
end

function creatbutton(mainListView)
    for k, v in ipairs(menuData) do 
        local mainBtn = GUI:Button_Create(mainListView, "btn_"..v.id, 0, 0, "res/public/1900000612.png")
        GUI:Button_setTitleText(mainBtn, v.name)
        GUI:setContentSize(mainBtn, 180, 40)
        
        GUI:addOnClickEvent(mainBtn, function()  
            -- 如果点击的是已展开的菜单，则关闭
            if currentExpandedIndex == k then
                removeSubMenus(mainListView, k)
                currentExpandedIndex = nil
            else
                -- 先移除其他已展开的二级菜单
                if currentExpandedIndex then
                    removeSubMenus(mainListView, currentExpandedIndex)
                end
                -- 展开当前菜单
                createSubMenus(mainListView, v.subMenus, k)
                currentExpandedIndex = k
                
                SL:print("数量",GUI:ListView_getItemCount(mainListView))
                for k ,v in pairs(GUI:ListView_getItems(mainListView))  do  
                    SL:print(k ,v,GUI:getName(v))
                end
                GUI:ListView_doLayout(mainListView)
                
            end
        end)
        
    end
    
end



-- 创建二级菜单
function createSubMenus(mainListView, subMenus, parentIndex)
    for i, subName in ipairs(subMenus) do
        
        local oldBtn = GUI:getChildByName(node, "sub_"..parentIndex.."_"..i)
        if oldBtn and not GUI:Win_IsNull(oldBtn) then
            GUI:removeChildByName(node, "sub_"..parentIndex.."_"..i)
        end
        
        if node and not GUI:Win_IsNull(node) then
            local subBtn2 = GUI:Button_Create(node, "sub_"..parentIndex.."_"..i, 0, 0, "res/public/1900000652.png")
            GUI:Button_setTitleText(subBtn2, "  "..subName)  -- 添加缩进
            GUI:setContentSize(subBtn2, 160, 35)
            
            -- GUI:Timeline_Window1(subBtn2, nil)
            
              GUI:setOpacity(subBtn2, 0) 
            -- GUI:setOpacity(subBtn2, 255)  -- 设置半透明
         GUI:Timeline_FadeIn(subBtn2, 0.5, nil)
            -- 计算插入位置(一级菜单下方)
            local insertPos = parentIndex + i
            if subBtn2 then 
                GUI:ListView_insertCustomItem(mainListView, subBtn2, parentIndex)
                GUI:addOnClickEvent(subBtn2, function()
                    SL:print("选择了:", subName)
                end)
                GUI:ListView_setDirection(mainListView, 1)
                GUI:ListView_setGravity(mainListView, 5)  -- 设置垂直排列
                GUI:setTouchEnabled(mainListView, true)
             
            end
        end
    end
       
       GUI:ListView_doLayout(mainListView)
end

-- 移除二级菜单
function removeSubMenus(mainListView, parentIndex)
    local children = GUI:getChildren(mainListView)
    for i = #children, 1, -1 do
        local child = children[i]
        if string.find(GUI:getName(child), "sub_") then
            SL:print("移除~~",GUI:getName(child))
            GUI:setOpacity(child, 0) 
            -- GUI:removeFromParent(child)
            GUI:ListView_removeChild(mainListView, child)
        end
    end
    GUI:ListView_doLayout(mainListView)
end


function main()
    createwin()
end