SkeletonView
November 09, 2017 • MIT License
An elegant way to show users that something is happening and also prepare them to which contents he is waiting
Animating Navigation Bar
February 27, 2017 • Apache 2.0 License
animate the navigation bar while scrolling
TLAnimatingOutlineView
July 15, 2011 • BSD License
An animating outline view for use in OS X applications.