EventBus Producer 已经失效，不能再生产事件

Question

我正在使用 RxBus，它是 Otto/EventBus 的 RxJava 克隆，用于在我的 android 应用程序的不同组件之间进行通信。该应用程序在我的摩托罗拉 Moto x 2013 运行 ICS 上运行良好，没有崩溃。但是在 Nexus 5X 上，运行 Android M，它抛出这个异常：

Fatal Exception: java.lang.IllegalStateException: Exception thrown on Scheduler.Worker thread. Add `onError` handling.
   at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:60)
   at android.os.Handler.handleCallback(Handler.java:808)
   at android.os.Handler.dispatchMessage(Handler.java:103)
   at android.os.Looper.loop(Looper.java:193)
   at android.app.ActivityThread.main(ActivityThread.java:5333)
   at java.lang.reflect.Method.invokeNative(Method.java)
   at java.lang.reflect.Method.invoke(Method.java:515)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)
   at dalvik.system.NativeStart.main(NativeStart.java)
Caused by rx.exceptions.OnErrorNotImplementedException: [EventProducer public xyz.chanl.radio.events.Events$StageProgram xyz.chanl.radio.fragments.ProgramListFragment.stageProgram()] has been invalidated and can no longer produce events.
   at rx.Observable.onError(Observable.java:8139)
   at rx.observers.SafeSubscriber._onError(SafeSubscriber.java:157)
   at rx.observers.SafeSubscriber.onError(SafeSubscriber.java:120)
   at rx.internal.operators.OperatorSubscribeOn.onError(OperatorSubscribeOn.java:59)
   at rx.Observable.unsafeSubscribe(Observable.java:8321)
   at rx.internal.operators.OperatorSubscribeOn.call(OperatorSubscribeOn.java:94)
   at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:55)
   at android.os.Handler.handleCallback(Handler.java:808)
   at android.os.Handler.dispatchMessage(Handler.java:103)
   at android.os.Looper.loop(Looper.java:193)
   at android.app.ActivityThread.main(ActivityThread.java:5333)
   at java.lang.reflect.Method.invokeNative(Method.java)
   at java.lang.reflect.Method.invoke(Method.java:515)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)
   at dalvik.system.NativeStart.main(NativeStart.java)
Caused by java.lang.IllegalStateException: [EventProducer public xyz.chanl.radio.events.Events$StageProgram xyz.chanl.radio.fragments.ProgramListFragment.stageProgram()] has been invalidated and can no longer produce events.
   at com.hwangjr.rxbus.entity.ProducerEvent.produceEvent(ProducerEvent.java:98)
   at com.hwangjr.rxbus.entity.ProducerEvent.access[=10=]0(ProducerEvent.java:17)
   at com.hwangjr.rxbus.entity.ProducerEvent.call(ProducerEvent.java:80)
   at com.hwangjr.rxbus.entity.ProducerEvent.call(ProducerEvent.java:76)
   at rx.Observable.unsafeSubscribe(Observable.java:8314)
   at rx.internal.operators.OperatorSubscribeOn.call(OperatorSubscribeOn.java:94)
   at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:55)
   at android.os.Handler.handleCallback(Handler.java:808)
   at android.os.Handler.dispatchMessage(Handler.java:103)
   at android.os.Looper.loop(Looper.java:193)
   at android.app.ActivityThread.main(ActivityThread.java:5333)
   at java.lang.reflect.Method.invokeNative(Method.java)
   at java.lang.reflect.Method.invoke(Method.java:515)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)
   at dalvik.system.NativeStart.main(NativeStart.java)

我用谷歌搜索过，但之前似乎没有人遇到过这个问题，或者我找不到一个非常相似的堆栈跟踪。

我该如何调查这个问题？

我register和unregister总线在onStart和onStop函数片段。

Answer 1

因此，我进行了调查，发现这通常发生在注册多个生产者发出相同事件时。因此，当生产者注册了一个特定事件时，它会使第二个事件无效。不知道这个设计是不是故意的

EventBus Producer 已经失效，不能再生产事件

EventBus Producer has been invalidated and can no longer produce events

android

otto

greenrobot-eventbus