57 lines
1.0 KiB
Dart
57 lines
1.0 KiB
Dart
import 'dart:async';
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import 'package:event_bus/event_bus.dart';
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class EventBusUtil {
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static EventBus? _eventBus;
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//获取单例
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static EventBus getInstance() {
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_eventBus ??= EventBus();
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return _eventBus!;
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}
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//返回某事件的订阅者
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static StreamSubscription<T> listen<T extends Event>(Function(T event) onData) {
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_eventBus ??= EventBus();
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//内部流属于广播模式，可以有多个订阅者
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return _eventBus!.on<T>().listen(onData);
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}
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//发送事件
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static void fire<T extends Event>(T e) {
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_eventBus ??= EventBus();
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_eventBus!.fire(e);
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}
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}
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abstract class Event {}
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class OrderStatusEvent extends Event {}
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class PushStatusEvent extends Event {}
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//刷新用户信息
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class RefreshUserdata extends Event {
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RefreshUserdata();
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}
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//支付成功
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class PaySuccess extends Event {
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PaySuccess();
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}
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//启动游戏
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class StartGames extends Event {
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final String gameId;
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StartGames(this.gameId);
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}
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//tab切换
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class TabSwitch extends Event {
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final int index;
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TabSwitch(this.index);
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}
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