Android代码 double direction adapter endless

double-direction-adapter-endless powred by rv-adapter-endless https://github.com/rockerhieu/rv-adapter-endless 双向加载更多 recyclerview, 不同于上拉刷新，下拉加载更多。双向都是加载更多操作 EndlessRecyclerViewAdapter support for RecyclerView.Adapter feature 1，双向加载更多 2，支持竖向，和横向 3，装饰模式实现，不需要修改之前adapter。 when use 首次加载中间段数据，然后滚动时，