Shows how keyboard shortcuts can interfere with text input, and how to solve that.

main.dart

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

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

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatelessWidget {
  const MyHomePage({super.key, required this.title});

  final String title;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(title),
      ),
      body: Center(
        child: CallbackShortcuts(
          bindings: <ShortcutActivator, VoidCallback>{
            const SingleActivator(LogicalKeyboardKey.keyF): () {
              print('justin F');
            },
            const SingleActivator(LogicalKeyboardKey.keyE): () {
              print('justin E');
            },
          },
          child: const Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: <Widget>[
              Shortcuts(
                shortcuts: <ShortcutActivator, Intent>{
                  SingleActivator(LogicalKeyboardKey.keyE): DoNothingAndStopPropagationIntent(),
                },
                child: TextField(
                  decoration: InputDecoration(
                    labelText: 'Typing E works, but F is caught by shortcuts.',
                  ),
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }
}

Thanks a bunch for this. I'm trying to implement a ctrl-z for my app which does not interfere with TextField's default ctrl-z, and I'm unpleasantly surprised by how much time I'm spending on this feature. This helps for sure.

I guess at least I'm learning how Focus works in Flutter along the way !

No problem! Can I ask where you looked before you found this gist? I wonder if there's somewhere in the docs that should explain this more clearly.

@justinmc I think I was looking at this page beforehand, not sure if that'd be the best place to explain it but that's where I was at :)
https://docs.flutter.dev/ui/interactivity/actions-and-shortcuts#overview