ViewDragHelper
Android ViewDragHelper完全解析 自定义ViewGroup神器
https://blog.youkuaiyun.com/lmj623565791/article/details/46858663
自定义控件辅助神器ViewDragHelper
https://blog.youkuaiyun.com/zhangke3016/article/details/52347569
SwipeBackLayout
SwipeBackLayout 和SwipeBackActivity最完全解析
https://blog.youkuaiyun.com/u014315849/article/details/50982816
滑动返回库SwipeBackLayout解析
https://blog.youkuaiyun.com/shaw1994/article/details/44536667