class Child2PageState extends State<Child2Page> {
  String value = "Page 2";

  @override
  Widget build(BuildContext context) {
    final currentValue = ParentProvider.of(context).title;
    return Padding(
      padding: const EdgeInsets.all(15.0),
      child: Column(
        children: [
          Text(
            currentValue ?? value,
            style: Theme.of(context).primaryTextTheme.headline,
          ),
        ],
      ),
    );
  }
}