Flutter 按下 Command+W 时关闭窗口

发布于01月10日

我不认为这会在MacOS的默认应用程序模板中实现.当我按下Command+W时，它没有任何react .我们如何才能在Flutter 翼中做到这一点？

推荐答案

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

要退出Flutter 应用程序(不适用于iOS)，您可以拨打:

 SystemNavigator.pop();

如果您在内部查看它的代码，它会调用:

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

因此，要检测Command+W，您可以设置键盘监听程序:

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

完整代码:

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"),
    );
  }
}