flutter-animations

Comprehensive guide for implementing animations in Flutter. Use when adding motion and visual effects to Flutter apps: implicit animations (AnimatedContainer, AnimatedOpacity, TweenAnimationBuilder), explicit animations (AnimationController, Tween, AnimatedWidget/AnimatedBuilder), Hero animations (shared-element transitions), staggered animations (sequential or overlapping), and physics-based animations. Includes a workflow for choosing the right animation type, common implementation patterns, and best practices for performance and user experience.