Detect when we moved back to previous page in Flutter

Question

We moved from Page1 to Page2 but now from Page2 we move back again to Page1 like this:

Navigator.of(context).pop();

How can we detect on Page1 that we went back?

Answer 1

Navigator.push(
    context,
    MaterialPageRoute(
      builder: (context) => NextPage(),
    ),
  ).then((_){
// Here you will get callback after coming back from NextPage()
// Do your code here
});

Answer 2

In your Page1, When you push Page2 wait for it to pop

Future<void> _goToPage2() async {
  await Navigator.push(
    context,
    MaterialPageRoute(
      builder: (context) => Page2(),
    ),
  );
  print("Page2 is popped");
}