Flutter :如何在statelesswidget中调用函数？

typedef VoidCallback = void Function();

class MyWidget extends StatelessWidget {
  final VoidCallback onPressed;

  MyWidget({required this.onPressed});

  // ...
}

class MyWidget extends StatelessWidget {
  final VoidCallback onPressed;

  MyWidget({required this.onPressed});

  @override
  Widget build(BuildContext context) {
    return ElevatedButton(
      onPressed: onPressed,
      child: Text('Call Function'),
    );
  }
}

class MyApp extends StatelessWidget {
  void myFunction() {
    // 要执行的函数逻辑
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        body: Center(
          child: MyWidget(
            onPressed: myFunction,
          ),
        ),
      ),
    );
  }
}