build method
- BuildContext context
override
Override this method to build widgets that depend on the state of the listenable (e.g., the current value of the animation).
Implementation
@override
Widget build(BuildContext context) {
final RelativeRect offsets = RelativeRect.fromSize(rect.value ?? Rect.zero, size);
return Positioned(
top: offsets.top,
right: offsets.right,
bottom: offsets.bottom,
left: offsets.left,
child: child,
);
}