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flutterdartback-button

Flutter Back button with return data

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?

Solution

  • 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");