LUA的延时调用功能

-- 延时 0.2 关闭 

    local schedulerEntry = nil

    local    scheduler = cc.Director:getInstance():getScheduler()

    local function removeLayer(time)

        scheduler:unscheduleScriptEntry(schedulerEntry)

        schedulerEntry = nil

        layer:removeFromParentAndCleanup(true)   

    end

    schedulerEntry = scheduler:scheduleScriptFunc(removeLayer, 0.2, false)