list[_index].func = function()
                if listElement and listElement.contentBounds and listElement.contentBounds.yMax and
                    listElement.contentBounds.yMin then

                    local _yMin = listElement.contentBounds.yMin
                    local _yMax = listElement.contentBounds.yMax

                    local isWithinRenderDistance = _yMax > -_H * _renderDistance and _yMax < _H *
                        ( _renderDistance + 1 )  or _yMin < _H * ( _renderDistance + 1 ) and
                        _yMin > -_H * _renderDistance

                    local isOutsideRenderDistance = _yMax <= -_H * _renderDistance and _yMin < -_H *
                        _renderDistance or _yMax > _H * _renderDistance + 1 ) and _yMin >= _H * _renderDistance + 1

                    unload = true

                    if isWithinRenderDistance then
                        if not listElement._status then
                            listElement._status = true

                            timerThread = timer.performWithDelay(5, function()
                                if not listElement._isRendering then
                                    listElement._isRendering = true

                                    if unload then
                                        if listElement._y then
                                            _newElement = createElement(data)
                                            listElement:insert(_newElement)
                                            listElement.y = listElement._y
                                        end
                                    else
                                        if _newElement.loadContent and
                                            type(_newElement.loadContent) == "function" then

                                            _newElement:loadContent()
                                        end
                                    end
                                end
                            end)
                        end
                    elseif isOutsideRenderDistance then
                        if listElement._status then
                            listElement._status = false

                            if unload then
                                if listElement.y and _newElement then
                                    listElement._y = listElement.y
                                    _newElement:destroy()
                                    _newElement = nil
                                end
                            else
                                if _newElement.unloadContent and type(_newElement.unloadContent) == "function" then
                                    _newElement:unloadContent()
                                end
                            end
                        end

                        listElement._isRendering = false
                    end
                end

                ---collectgarbage()
                --printMemUsage()
            end