transferring data from one widget to another

I pass data from textcontroller via getter to text widget and I don't understand why text on widget pronounce doesn't appear. It seems to me that there is some logic in my code, but I'm new to flutter and maybe I don't understand something, tell me. code compiles

import 'package:flutter/material.dart';

void main() {
  runApp(
    MaterialApp(
      home: MyCustomForm(),
    ),
  );
}

class MyCustomForm extends StatefulWidget {
  MyCustomForm({super.key});
  String s = '';
  String get ninja {
    return s;
  }

  @override
  State<MyCustomForm> createState() => _MyCustomFormState();
}

class _MyCustomFormState extends State<MyCustomForm> {
  final myController = TextEditingController();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            Pronounce(),
            TextField(
              controller: myController,
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: () => setState (() {widget.s = myController.text;}),
        child: const Icon(Icons.update),
      ),
    );
  }
}


class Pronounce extends StatefulWidget {
  Pronounce ({super.key});

  @override
  State<Pronounce> createState() => _PronounceSt();
}

class _PronounceSt extends State<Pronounce> {
 
  @override 
  Widget build (context) {
    return Text (MyCustomForm().ninja);
  }
}

Problem is your getter is in MyCustomForm technically it not shared properly

You should pass data by create constructor and pass it to another widget or page like this and I will add some constrcutor tips

class Pronounce extends StatefulWidget {
  // Define Variable
  final String text;
  // then create constructor 
  // ps. if your variable is nullable or has default value you can remove required 
  Pronounce ({
    super.key , 
    required this.text,
    // ex. when you have default value 
    // this.text = 'default text',
    // ex. nullable case
    // this.text,
    });

  @override
  State<Pronounce> createState() => _PronounceSt();
}

class _PronounceSt extends State<Pronounce> {
 
  @override 
  Widget build (context) {
    
    return Text (text);
    // Nullable case you can do like this ?? after nullable variable mean when value is null use this ... 
    // return Text (text ?? 'Text is empty'); 
    
  }
}