FlClash/lib/manager/proxy_manager.dart

import 'package:fl_clash/common/proxy.dart';
import 'package:fl_clash/providers/state.dart';
import 'package:material_ui/material_ui.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';

class ProxyManager extends ConsumerStatefulWidget {
  final Widget child;

  const ProxyManager({super.key, required this.child});

  @override
  ConsumerState createState() => _ProxyManagerState();
}

class _ProxyManagerState extends ConsumerState<ProxyManager> {
  @override
  void initState() {
    super.initState();
    ref.listenManual(proxyStateProvider, (prev, next) {
      if (prev != next) {
        systemProxyQueue?.apply(next);
      }
    }, fireImmediately: true);
  }

  @override
  Widget build(BuildContext context) {
    return widget.child;
  }
}