50 lines
1.1 KiB
Dart
50 lines
1.1 KiB
Dart
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import 'package:event_bus/event_bus.dart';
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// 创建 EventBus 实例（私有）
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EventBus _eventBus = EventBus();
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/// 全局事件总线工具类（单例）
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class EventBusUtil {
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// 工厂构造函数，确保返回唯一实例
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factory EventBusUtil() => _instance;
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// 私有构造函数
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EventBusUtil._internal();
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// 静态实例
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static final EventBusUtil _instance = EventBusUtil._internal();
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/// 获取 EventBus 实例
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EventBus get instance => _eventBus;
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/// 监听指定类型的事件
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///
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/// 示例：
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/// ```dart
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/// EventBusUtil().on<UserLoginEvent>((event) {
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/// print('用户登录：${event.userId}');
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/// });
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/// ```
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Stream<T> on<T>() {
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return _eventBus.on<T>();
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}
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/// 发送事件
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///
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/// 示例：
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/// ```dart
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/// EventBusUtil().fire(UserLoginEvent('123'));
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/// ```
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void fire<T>(T event) {
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_eventBus.fire(event);
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}
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/// 销毁 EventBus（一般不用调用，除非应用退出）
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void destroy() {
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_eventBus.destroy();
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}
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}
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/// 快捷访问方式（可选）
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EventBusUtil $eventBus = EventBusUtil();
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