How can I call a function as soon as I go back to the main screen? - Flutter

Question

Hello,

From the main screen of my app, pressing a button switches to another screen.

IconButton(
                    onPressed: () {
                      Navigator.push(
                        context,
                        MaterialPageRoute(
                          builder: (context) {
                            return screen2();
                          },
                        ),
                      );
                    },

When I am in screen2 and I want to go back or I can press a button. Navigator.pop(context); or press the android back button.

How can I call a function as soon as I go back to the main screen?

Thank you.

score 0 · Answer 1 · answered Oct 31 '22 at 19:24

0

From what I understood you want to trigger a function when you go to the previous page!

So, Make the main screen as a Stateful widget and then initialize an init state and inside the init state put the function you want to trigger

Such as like this below code

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    FunctionYouWantToTrigger();
  }

answered Oct 31 '22 at 19:24

7eg

285
3
11

I need the main screen to be a stateless widget – CastoldiG Oct 31 '22 at 20:02
1

@CastoldiG refer this https://stackoverflow.com/a/70996024/13311722 it might help you – 7eg Oct 31 '22 at 20:23
That was what I was looking for. I also want the same thing to happen when I press the "back" button on Android, do you know how I can do that? – CastoldiG Nov 01 '22 at 11:04

How can I call a function as soon as I go back to the main screen? - Flutter

1 Answers1