Flutter Animations Implementation

Goal

Implements and manages Flutter animations, selecting the appropriate animation strategy (implicit, explicit, tween, physics, hero, or staggered) based on UI requirements. Assumes a working Flutter environment, stateful/stateless widget competence, and a standard widget tree structure.

Instructions

1. Determine Animation Strategy (Decision Logic)

Evaluate the UI requirement using the following decision tree to select the correct animation approach:

1. Is the animation a simple property change (color, size, alignment) on a single widget?
   • YES: Use Implicit Animations (e.g., AnimatedContainer).
   • NO: Proceed to 2.
2. Does the animation model real-world movement (springs, gravity, velocity)?
   • YES: Use Physics-based animation (SpringSimulation, animateWith).
   • NO: Proceed to 3.
3. Does the animation involve a widget flying between two different screens/routes?
   • YES: Use Hero Animations (Hero widget).
   • NO: Proceed to 4.
4. Does the animation involve multiple sequential or overlapping movements?
   • YES: Use Staggered Animations (Single AnimationController with multiple Tweens and Interval curves).