How to refresh currently active page in flutter
just Simple use
setState(() {});
I once used this workaround for a floatingActionButton that reloaded the active page;
Navigator.pushReplacement(
context,
MaterialPageRoute(
builder: (BuildContext context) => super.widget));
try (context as Element).reassemble();
reassemble is the function that is used for hot reload
also i think it's better to say your goal and look at other solutions to fix your problem because I don't think this method is reliable.
EDIT: there are some useful tips in the comments.