Flutter Back button with return data

Question

I have an interface with two buttons that pop and return true or false, like so:

onPressed: () => Navigator.pop(context, false)

I need to adapt the back button in the appbar, so it pops and also returns false. Is there a way to accomplish this?

Answer 1

This may help and work for you

1st screen

void goToSecondScreen()async {
 var result = await Navigator.push(_context, new MaterialPageRoute(
 builder: (BuildContext context) => new SecondScreen(context),
 fullscreenDialog: true,)
);

Scaffold.of(_context).showSnackBar(SnackBar(content: Text("$result"),duration: Duration(seconds: 3),));
}

2nd screen

Navigator.pop(context, "Hello world");