build method
AnimatorWidget calls build to retrieve the animated Widget. The extracted Animator from the getDefinition phase is injected to supply a controller and the Animation objects. Example: @override Widget build(BuildContext context, Animator animator, Widget child) { return FadeTransition( opacity: animation.get('opacity'), child: child, ); }
Implementation
@override
Widget build(BuildContext context, Animator animator, Widget child) {
return FadeTransition(
opacity: animator.get("opacity") as Animation<double>,
child: child,
);
}