Keyboard shortcuts and focus demo

main.dart

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

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Keyboard Shorcuts Focus',
      home: Shortcuts(
        shortcuts: <LogicalKeySet, Intent>{
          LogicalKeySet(LogicalKeyboardKey.escape): const EscapeIntent()
        },
        child: Actions(
          actions: <Type, Action<Intent>>{
            EscapeIntent: EscapeAction(),
          },
          child: Scaffold(
            body: Center(
              child: Row(
                children: const <Widget>[
                  Spacer(),
                  Expanded(
                    child: TextField(),
                  ),
                  Spacer(),
                ],
              ),
            ),
          ),
        ),
      ),
    );
  }
}

class EscapeIntent extends Intent {
  const EscapeIntent();
}

class EscapeAction extends Action<EscapeIntent> {
  @override
  Object? invoke(covariant EscapeIntent intent) {
    print('CALLED ESCAPE.');
  }
}