call method in one stateful widget from another stateful widget - Flutter

Question

I have a flutter project that i am working on i cant put the whole code cause its more than 500 lines of code so i will try to ask my question as simply as i acn using the i

Answer 1

I just found a simplest solution for this question

Appearently, You can just create a file that contain only a method and you will be able to call it directly

For Example, I want to create a showModalBottomSheet method in file named custom_show_bottom_sheet.dart :

import 'package:flutter/material.dart';

customShowBottomSheet(context, Widget child){
    showModalBottomSheet(
      isScrollControlled: true,
      context: context,
      builder: (BuildContext context) {
        return Wrap(
          children: [
            child,
          ],
        );
      });
}

And you can simply call it like this:

import 'package:flutter/material.dart';
import '../custom_show_bottom_sheet.dart';

class TestScreen extends StatelessWidget {
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: FloatingActionButton(
            onPressed: (){
              customShowBottomSheet( //A method is called here
                  context,
                  Container(
                    height: 200,
                    child: Text("This is a test"),
                  )
              );
            }),
      ),
    );
  }
}

Hope this be a help! Please let me know if I misunderstand your question or anything.