didUpdateWidget method

@override Cmd? didUpdateWidget(covariant T oldWidget)

Called when the widget configuration changes.

Return a Cmd to schedule side effects caused by the configuration update.

Implementation

@override
Cmd? didUpdateWidget(T oldWidget) {
  super.didUpdateWidget(oldWidget);
  if (_shouldAnimate(oldWidget)) {
    _updateTweens();
    return _controller.forward(from: 0.0);
  }
  return null;
}