Top 20 NuGet animation Packages

Animator for UWP
An animation creation library.
Provides chain style definition of animation.
Tweening library for C# packaged as PCL
Xamarin bindings for the Facebook Rebound library: https://github.com/facebook/rebound This project does not offer support for Rebound, but will match version numbering.
Enables you to work with animate.css class more easily and conveniently.
Monolith4 is a Windows UWP library that lets you create animations in codebehind in a fluent, somewhat straightforward manner. It's a wrapper around the Windows.UI.Xaml.Media.Animation library that removes as much of the setup as possible.
WPF Behavior for TextBlock component, play Fade out-in animation when text changed
The component allows you to animate any controls on your WinForms. The Animator does not work with OLE-based controls (WebBrowser, RichTextBox). These controls do not paint itself when window is not visible. So we can not to grab bitmap from it. Package built based on the Pavel Torgashov project ...
Plugin Animate CSS for Web Projects
Xamarin bindings to the native DGActivityIndicatorView, which is a great way to make loading spinners in your application look nicer. It contains 6 different indicator view styles. Inspired by: http://connoratherton.com/loaders
C# Animations based on actionscript "Tween" and "Motion" classes includes Robert Penner's easing functions Sample: https://github.com/Rmanaf/TransitionsSample
Just another Dependency Injection Framework
Just another (portable) Dependency Framework
A programmatic approach to building Xamarin.iOS UIs with stack views (horizontal and vertical) and animations during segue transitions
Xamarin.iOS.FDFullscreenPopGesture
XImgBtn
Xamarin.iOS.DZNEmptyDataSet