如何在flutter应用程序之外显示模式

public class DisplayModePlugin implements MethodCallHandler {
    private Context context;

    private DisplayModePlugin(Context context) {
        this.context = context;
    }

    public static void registerWith(Registrar registrar) {
        final MethodChannel channel = new MethodChannel(registrar.messenger(), "display_mode_plugin");
        channel.setMethodCallHandler(new DisplayModePlugin(registrar.context()));
    }

    @Override
    public void onMethodCall(MethodCall call, Result result) {
        if (call.method.equals("showDisplayMode")) {
            // 实现在应用程序之外显示模式的逻辑
            // ...
            result.success(null);
        } else {
            result.notImplemented();
        }
    }
}

import 'package:flutter/services.dart';

class DisplayModePlugin {
  static const MethodChannel _channel =
      const MethodChannel('display_mode_plugin');

  static Future<void> showDisplayMode() async {
    try {
      await _channel.invokeMethod('showDisplayMode');
    } catch (e) {
      print('Failed to show display mode: $e');
    }
  }
}

import 'package:flutter/material.dart';
import 'package:your_plugin/display_mode_plugin.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Display Mode Example'),
        ),
        body: Center(
          child: RaisedButton(
            child: Text('Show Display Mode'),
            onPressed: () {
              DisplayModePlugin.showDisplayMode();
            },
          ),
        ),
      ),
    );
  }
}