隐藏tabBar

self.tabBarController.tabBar.hidden=YES;

UIView animate height from bottom to top

Increase the height while decreasing the origin.y by the same amount.

原始地址： http://sxgfxm.github.io/blog/2017/07/03/ioszhi-shi-xiao-ji-170626/
written by Light  posted at http://sxgfxm.github.io