我使用GreenRobot Event Bus 3.0
作为活动总线,我有2个发布商:
private static final EventBus EVENT_BUS = new EventBus();
//Publish event to the event bus
public static void sendEvent(LoggingEvent event){
LogPublisher.EVENT_BUS.post(event);
}
//Publish event to the event bus
public static void sendEvent(OtherLoggingEvent event){
LogPublisher.EVENT_BUS.post(event);
}
我有2个订阅者:
@Subscribe(threadMode = ThreadMode.ASYNC)
public void onEvent(LoggingEvent event){
logEvent( event);
}
@Subscribe(threadMode = ThreadMode.ASYNC)
public void onEvent(OtherLoggingEvent event){
logEvent( event);
}
问题在于拨打电话时如下:
MyPublisher.sendEvent(new OtherLoggingEvent(varA, varB, varC));
两个订阅者都被调用,我无法弄清楚原因。我认为它可能与OtherLoggingEvent
是LoggingEvent
的子类这一事实有关,但我不确定。那么我的问题就是如何与发布者和订阅者建立1-1关系。我想打电话:
MyPublisher.sendEvent(new OtherLoggingEvent(varA, varB, varC));
并调用订阅者public void onEvent(OtherLoggingEvent event)
,当我致电时:
MyPublisher.sendEvent(new LoggingEvent(varD, varE, varF));
订阅者:
public void onEvent(LoggingEvent event)
会被叫到吗?这是否可以正常工作,但必须确保这些类是唯一的,而不是彼此的子类?我是否必须创建一个新的EventBus
对象?
答案 0 :(得分:4)
两个订阅者都因为事件类继承而调用。但您可以在EventBus中关闭此eventInheritance
功能。通过使用此方法:
EventBus BUS = EventBus.builder().eventInheritance(false).installDefaultEventBus();