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 builder(context, animator, child);
}