*先订阅才能接收到消息

RxBus类先定义,一般网上很多直接copy

传递对象封装成bean较方便,如
public EventMsg(int code, T msg) 

订阅的
RxBus.getInstance()
                .register(EventMsg.class)
                .subscribe(msgEvent -> {
                    String text = msgEvent.getMessage().toString();
                    Logger.i("" + text);
                    ToastUtils.showToast(mContext, "消息 = " + text);
                });
				
发送的
RxBus.getInstance().post(new EventMsg<>(1,"qwer"));