flutter-animator
Implement Flutter animations - implicit animations (AnimatedContainer, AnimatedOpacity), TweenAnimationBuilder, built-in *Transition widgets (Fade/Slide/Scale/Rotation/Size/Align/Positioned/DecoratedBox), explicit AnimationController+Tween animations, TweenSequence, physics-based motion (SpringSimulation), Hero shared-element transitions, page route transitions, AnimatedSwitcher, AnimatedCrossFade, AnimatedIcon, animated list/grid insertion and removal, and staggered animations. Use this whenever a Flutter widget needs to animate, fade, slide, scale, bounce, spring, morph, cross-fade, or transition - even if the user just says "make this smoother" or "add motion" without saying the word animation.
