地址为:http://mp.weixin.qq.com/s?__biz=MzA5MzI3NjE2MA==&mid=2650242377&idx=1&sn=022c67930ce71c4f99ec23c89c6f9cce&chksm=88638c26bf140530095b7306d014386c0c1d0d614d85c569d28520dbf47acdfcaf607269776d&mpshare=1&scene=23&srcid=0223aiWtg5IsszfsjzxmspxX#rd
或https://github.com/chaychan/BottomBarLayout