What are the stages of animation in Flutter?

Creating AnimationController: Managing the duration and progress of the animation.

AnimationController controller = AnimationController(
  duration: const Duration(seconds: 2),
  vsync: this, // Requires TickerProviderStateMixin
);

Creating Animation: Defining the value range for the animation.

Animation<double> animation = CurvedAnimation(
  parent: controller,
  curve: Curves.easeIn, // Animation curve
);

Binding to widget: Using AnimatedBuilder or other widgets to build the animation.

AnimatedBuilder(
  animation: animation,
  builder: (BuildContext context, Widget? child) {
    return Opacity(
      opacity: animation.value, // Applying animated value
      child: child,
    );
  },
  child: Container(width: 100, height: 100, color: Colors.blue),
);

Starting the animation: Executing the animation.

controller.forward(); // Play forward
// controller.reverse(); // Play backward
// controller.repeat(); // Repeat

Cancel the animation: Stopping the animation.

controller.dispose(); // Release resources