XBackManagerCreator = function()
    ---@class XBackManager

    local XBackManager = {}

    local UiStacks
    local UiDict

    -- 这些是返回键
    local _DictBtnBack = {
        BtnBack = true,
        BtnTanchuangCloseBig = true,
        BtnTanchuangClose = true,
        BtnClose = true,
        ButtonClose = true,
        ButtonBack = true,
        BtnExit = true,
        BtnMask = true,
        BtnBlock = true,
        BtnTreasureBg = true,
        BtnCancel = true,
        BtnCloseDetail = true,
        SceneBtnBack = true,
        BtnDetermine = true,
        BtnClosePopup = true,
        BtnHideCurResonance = true,
        BtnChannelMask = true,
        CloseMask = true,
        Close = true,
        BtnBg = true,
        BtnCloseAllScreen = true,
        BtnCloseMask1 = true,
        BtnCloseMask2 = true,
        BtnCloseMask3 = true,
        BtnCloseMask4 = true,
        BtnTanchuangCloseWhite = true,
        BtnCloseCollection = true,
    }

    local function IsOnBtnClick()
        if XLuaUiManager.IsUiShow("UiLoading") or
                XLuaUiManager.IsUiShow("UiAssignInfo") or -- loading 界面 边界公约
                XDataCenter.GuideManager.CheckIsInGuidePlus() or
                XLuaUiManager.IsUiShow("UiBlackScreen") then
            return false
        end
        return true
    end

    -- 这些界面的这些键 是返回键
    local _DictBtnBackSpecial = {
        UiPhotograph = {
            Btn = true
        },
        UiCharacterTowerPlot = {
            BtnUnHide = true
        },
        UiBiancaTheatreRecruit = {
            UiBiancaTheatreRecruit = true
        },
        UiFubenMainLine3D = {
            Mask = true
        },
        UiDormSecond = {
            BtnHide = true
        },
        UiDormTerminalSystem = {
            BtnDarkBg = true
        },
        UiAssignDeploy = {
            BtnTongBlueLight = true
        },
        UiAwarenessDeploy = {
            BtnTongBlueLight = true
        },
        UiArchiveMonsterDetail = {
            BtnHide = true
        },
        UiBfrtDeploy = {
            BtnSave = true
        },
        UiMultiplayerRoom = {
            BtnCloseDifficulty = true
        },
        UiRegressionTips = {
            BtnPreviewConfirm = true
        },
        UiBattleRoleRoom = {
            BtnCloseDifficulty = true
        },
    }

    -- 这些界面的这些键 不是返回键
    local _DictBtnBackIgnored = {
        UiStrongholdRewardTip = {
            BtnMask = true
        },
        UiTheatreContinue = {
            BtnMask = true
        },
        UiGoldenMinerSuspend = {
            BtnExit = true
        },
    }

    -- 这些界面 不响应返回键
    local _DictBtnBackUiIgnored = {
        UiBfrtPostWarCount = true,
        UiAssignPostWarCount = true,
        UiSettleWinSingleBoss = true,
        UiFubenFlopReward = true,
        UiSettleWinMainLine = true,
        UiSettleWin = true,
    }

    local function GetUiSiblingIndexArray(rootName, transform)
        local array = {}
        local parentTransform = transform
        for i = 1, 99 do
            if not parentTransform then
                break
            end
            if parentTransform.name == rootName then
                break
            end
            local siblingIndex = parentTransform:GetSiblingIndex()
            table.insert(array, 1, siblingIndex)
            parentTransform = parentTransform.parent
        end
        return array
    end

    local function CompareBySiblingArray(rootName, transform1, transform2)
        if not transform1 then
            return false
        end
        if not transform2 then
            return true
        end
        local array1 = GetUiSiblingIndexArray(rootName, transform1)
        local array2 = GetUiSiblingIndexArray(rootName, transform2)
        for i = 1, #array1 do
            local siblingIndex1 = array1[i]
            local siblingIndex2 = array2[i]
            if siblingIndex1 ~= siblingIndex2 then
                return siblingIndex1 < siblingIndex2
            end
        end
        XLog.Error("[XBackManager] 比较siblingOrder错误")
        return false
    end

    local function FindButtonOnTop(root, type)
        local buttons = root:GetComponentsInChildren(type)
        local buttonOnTop
        local sortingOrderOnTop = 0
        local renderOrderOnTop = 0
        local relativeDepthOnTop = 0
        local rootName = root.name

        for i = 0, buttons.Length - 1 do
            local button = buttons[i]
            local buttonName = button.name
            local isSpecial = _DictBtnBackSpecial[rootName] and _DictBtnBackSpecial[rootName][buttonName]
            local isIgnored = _DictBtnBackIgnored[rootName] and _DictBtnBackIgnored[rootName][buttonName]
            if (not isIgnored) and (isSpecial or _DictBtnBack[buttonName]) then
                local canvasRenderer = button.transform:GetComponent(typeof(CS.UnityEngine.CanvasRenderer))
                if not XTool.UObjIsNil(canvasRenderer) then
                    -- 自身不透明
                    local alpha = canvasRenderer:GetAlpha()
                    if alpha > 0 then

                        -- 所在group不透明
                        local canvasGroup = button:GetComponentInParent(typeof(CS.UnityEngine.CanvasGroup))
                        if (not canvasGroup) or (canvasGroup.alpha > 0) then
                            -- 这个界面的renderOrder是反转的
                            if rootName == "UiBiancaTheatreRecruit"
                                    or rootName == "UiBiancaTheatrePlayMain"
                            then
                                if CompareBySiblingArray(buttonOnTop, button) then
                                    buttonOnTop = button
                                end
                            else
                                local isOnTop = false
                                local canvas = button:GetComponentInParent(typeof(CS.UnityEngine.Canvas))
                                local sortingOrder = canvas.sortingOrder or 0
                                local renderOrder = canvas.renderOrder or 0
                                local relativeDepth = canvasRenderer.relativeDepth or 0

                                if sortingOrder == sortingOrderOnTop then
                                    if renderOrder == renderOrderOnTop then
                                        if relativeDepth > relativeDepthOnTop then
                                            isOnTop = true
                                        end
                                    elseif renderOrder > renderOrderOnTop then
                                        isOnTop = true
                                    end
                                elseif sortingOrder > sortingOrderOnTop then
                                    isOnTop = true
                                end

                                if isOnTop then
                                    sortingOrderOnTop = sortingOrder
                                    renderOrderOnTop = renderOrder
                                    relativeDepthOnTop = relativeDepth
                                    buttonOnTop = button.transform
                                end
                            end
                        end
                    end
                end
            end
        end

        return buttonOnTop
    end

    function XBackManager.OnUiDisableAbandoned()
        -- todo 删除
    end

    local function PerformClick(transform)
        --自身不可见则不响应
        if (not transform.gameObject.activeSelf) or (not transform.gameObject.activeInHierarchy) then
            return
        end
        local xuiButton = transform:GetComponent(typeof(CS.XUiComponent.XUiButton))
        if xuiButton then
            local pointerEventData = CS.UnityEngine.EventSystems.PointerEventData(CS.UnityEngine.EventSystems.EventSystem.current)
            pointerEventData.button = CS.UnityEngine.EventSystems.PointerEventData.InputButton.Left
            xuiButton:OnPointerClick(pointerEventData)
        end
        
        if XTool.UObjIsNil(transform) then
            return
        end
        
        local listener = transform:GetComponent("XUguiEventListener")
        if listener then
            local pointerEventData = CS.UnityEngine.EventSystems.PointerEventData(CS.UnityEngine.EventSystems.EventSystem.current)
            pointerEventData.button = CS.UnityEngine.EventSystems.PointerEventData.InputButton.Left
            listener:OnPointerClick(pointerEventData)
        end
        
        if XTool.UObjIsNil(transform) then
            return
        end

        local button = transform:GetComponent(typeof(CS.UnityEngine.UI.Button))
        if button then
            button.onClick:Invoke()
        end
    end

    local function PerformButtonOnTopByLayer(layer)
        local ui
        if CsXUiManager.Instance.GetTopUiEx then
            ui = CsXUiManager.Instance:GetTopUiEx(layer)
        else
            ui = CsXUiManager.Instance:GetTopUi(layer)
        end
        if ui and ui.UiData.IsLuaUi then
            local uiName = ui.UiData.UiName
            if _DictBtnBackUiIgnored[uiName] then
                return false
            end

            -- 特殊处理:公会利用popup来实现两层界面，导致找不到按钮
            if uiName == "UiGuildDormCommon" then
                local uiGuildDorm = CsXUiManager.Instance:FindTopUi("UiGuildDormMain")
                if uiGuildDorm then
                    ui = uiGuildDorm
                end
            elseif uiName == "UiEquipAwarenessPopup" then
                local uiGuildDorm = CsXUiManager.Instance:FindTopUi("UiEquipAwarenessReplace")
                if uiGuildDorm then
                    ui = uiGuildDorm
                end
            elseif uiName == "UiRestaurantCommon" then
                local uiRestaurantMain = CsXUiManager.Instance:FindTopUi("UiRestaurantMain")
                if uiRestaurantMain then
                    ui = uiRestaurantMain
                end
            end

            ---@type XLuaUi
            local uiProxy = ui.UiProxy
            local root = uiProxy.GameObject
            local button = FindButtonOnTop(root, typeof(CS.UnityEngine.UI.Button))
            if button then
                PerformClick(button)
                return true
            end
        end
        return false
    end

    --local function IsInputFieldFocused()
    --    local EventSystem = CS.UnityEngine.EventSystems.EventSystem
    --    if EventSystem then
    --        local isFocused = EventSystem.current.isFocused
    --        if isFocused then
    --            local currentSelectedGameObject = EventSystem.current.currentSelectedGameObject
    --            if not XTool.UObjIsNil(currentSelectedGameObject) then
    --                if currentSelectedGameObject:GetComponent(typeof(CS.UnityEngine.UI.InputField)) then
    --                    return true
    --                end
    --            end
    --        end
    --    end
    --    return false
    --end

    --- 关闭界面
    function XBackManager.OnUiDisable()
        if CS.XUiManagerExtension.Masked then
            return
        end
        
        if XDataCenter.GuideManager.CheckIsInGuidePlus() then
            if CS.XQuitHandler and CS.XQuitHandler.OnBtnBackGuide then
                CS.XQuitHandler.OnBtnBackGuide()
            end
            return
        end

        if not IsOnBtnClick() then
            return
        end

        --if IsInputFieldFocused() then
        --    return
        --end

        if PerformButtonOnTopByLayer(CsXUiType.Tips) then
            return
        end
        if PerformButtonOnTopByLayer(CsXUiType.Dialog) then
            return
        end
        if PerformButtonOnTopByLayer(CsXUiType.Popup) then
            return
        end
        if PerformButtonOnTopByLayer(CsXUiType.Normal) then
            return
        end
        if PerformButtonOnTopByLayer(CsXUiType.System) then
            return
        end
        XDataCenter.UiPcManager.OnEscBtnClick()

        if XDataCenter.GuideManager.CheckIsInGuidePlus() then
            if not XDataCenter.GuideManager.getButton then
                return
            end
            local button = XDataCenter.GuideManager.getButton()
            if _DictBtnBack[button.name] then
                XDataCenter.GuideManager.NextStep()
                --OnPointerClick
                PerformClick(button.transform)
            end
        end
    end

    function XBackManager.Init()
        UiStacks = XStack.New()
        UiDict = {}
    end

    XBackManager.Init()
    return XBackManager
end