Close the window when Command W is pressed-CodePudding

I don't see that being implemented in the default app template on macOS. When I pressed Command W, it does nothing. How can we do that in flutter?

CodePudding user response：

Note: For exiting a window on mac, you need to press command Q, this approach is if you want to specifically detect command W.

To exit a Flutter app (not for IOS), you can call:

 SystemNavigator.pop();

which, if you take a look internally at its code, calls:

SystemChannels.platform.invokeMethod<void>('SystemNavigator.pop'

So, to detect Command W you can setup a keyboard listener:

 RawKeyboard.instance.addListener((key) {
      if (key.isMetaPressed && key.isKeyPressed(LogicalKeyboardKey.keyW)) {
        SystemNavigator.pop();
      }
    });

Complete code:

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

void main() {
  runApp(MaterialApp(home: const MyApp()));
}

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

  @override
  Widget build(BuildContext context) {
    RawKeyboard.instance.addListener((key) {
      if (key.isMetaPressed && key.isKeyPressed(LogicalKeyboardKey.keyW)) {
        SystemNavigator.pop();
      }
    });

    return Scaffold(
      body: Text("Press on the command w key to close the app"),
    );
  }
}