在Flutter中如何处理passcode_screen的广播标志

dependencies:
  flutter_event_bus: ^1.1.1

class PasscodeEvent {
  bool isPasscodeEnabled;

  PasscodeEvent(this.isPasscodeEnabled);
}

import 'package:flutter_event_bus/flutter_event_bus.dart';

EventBus eventBus = EventBus();

// 发送广播标志
eventBus.fire(PasscodeEvent(true));

import 'package:flutter_event_bus/flutter_event_bus.dart';

EventBus eventBus = EventBus();

@override
void initState() {
  super.initState();
  
  // 订阅事件
  eventBus.on<PasscodeEvent>().listen((event) {
    // 处理广播标志
    if (event.isPasscodeEnabled) {
      // 广播标志为true时的处理逻辑
    } else {
      // 广播标志为false时的处理逻辑
    }
  });
}