AndroidAnnotations 和 EventBus

Question

我在库中有一个带注释的 Activity，它是同一库中 EventBus 事件的订阅者。它看起来像这样，大大简化了:

@EActivity(resName = "activity_foo")
public class Foo extends Activity {

    public void onEvent(BarEvent event){
        doSomething();
    }
}

它应该按照这个工作:

http://timnew.me/blog/2014/09/14/otto-and-android-annotations-compatibility-issue-analysis/

但实际上它返回了这个错误:

Unable to start activity ... de.greenrobot.event.EventBusException: Subscriber class com.foo.bar.activities.Foo_ has no public methods called onEvent

EventBus 似乎没有在父类中查找。我猜每个人都在谈论的@Subscribe 注解只存在于 Guava 和 Otto 中，而没有存在于 EventBus 中。网上没有人在谈论 AA 和 Eventbus 之间的兼容性问题，所以我一定遗漏了什么。

我怎样才能让它工作？

事件总线:2.4

机管局:3.2

编辑:

在 WonderCsabo 的回答后，我将 EventBus 更新到 3.0 beta(包括 Subscribe 注释)并将 AA 更新到 3.3.1，问题消失了，但还有另一个问题:

   java.lang.NoSuchFieldError
            at libcore.reflect.AnnotationAccess.decodeValue(AnnotationAccess.java:688)
            at libcore.reflect.AnnotationAccess.getDefaultValue(AnnotationAccess.java:361)
            at java.lang.reflect.Method.getDefaultValue(Method.java:327)
            at libcore.reflect.AnnotationFactory.getElementsDescription(AnnotationFactory.java:75)
            at libcore.reflect.AnnotationFactory.<init>(AnnotationFactory.java:112)
            at libcore.reflect.AnnotationFactory.createAnnotation(AnnotationFactory.java:94)
            at libcore.reflect.AnnotationAccess.toAnnotationInstance(AnnotationAccess.java:666)
            at libcore.reflect.AnnotationAccess.toAnnotationInstance(AnnotationAccess.java:641)
            at libcore.reflect.AnnotationAccess.getDeclaredAnnotation(AnnotationAccess.java:170)
            at java.lang.reflect.Method.getAnnotation(Method.java:301)
            at de.greenrobot.event.n.b(SourceFile:133)
            at de.greenrobot.event.n.a(SourceFile:79)
            at de.greenrobot.event.c.a(SourceFile:135)
            at com.babestudios.lib.lq.activities.f.onStart(SourceFile:515)
            at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1236)
            at android.app.Activity.performStart(Activity.java:6006)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2288)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
            at android.app.ActivityThread.access$800(ActivityThread.java:151)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5254)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
     Caused by: java.lang.NoSuchFieldException: PostThread
            at java.lang.Class.getDeclaredField(Class.java:890)
            at libcore.reflect.AnnotationAccess.decodeValue(AnnotationAccess.java:685)
            at libcore.reflect.AnnotationAccess.getDefaultValue(AnnotationAccess.java:361)
            at java.lang.reflect.Method.getDefaultValue(Method.java:327)
            at libcore.reflect.AnnotationFactory.getElementsDescription(AnnotationFactory.java:75)
            at libcore.reflect.AnnotationFactory.<init>(AnnotationFactory.java:112)
            at libcore.reflect.AnnotationFactory.createAnnotation(AnnotationFactory.java:94)
            at libcore.reflect.AnnotationAccess.toAnnotationInstance(AnnotationAccess.java:666)
            at libcore.reflect.AnnotationAccess.toAnnotationInstance(AnnotationAccess.java:641)
            at libcore.reflect.AnnotationAccess.getDeclaredAnnotation(AnnotationAccess.java:170)
            at java.lang.reflect.Method.getAnnotation(Method.java:301)
            at de.greenrobot.event.n.b(SourceFile:133)
            at de.greenrobot.event.n.a(SourceFile:79)
            at de.greenrobot.event.c.a(SourceFile:135)
            at com.babestudios.lib.lq.activities.f.onStart(SourceFile:515)
            at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1236)
            at android.app.Activity.performStart(Activity.java:6006)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2288)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
            at android.app.ActivityThread.access$800(ActivityThread.java:151)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5254)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)

我注意到这两个问题(丢失的 onEvent 和现在的 PostThread 只是发布版本的问题。我使用 ProGuard，但 EventBus 和 AA 有推荐的异常(exception))。

编辑 2:

我加了

-keep class de.greenrobot.** {*;}

它似乎在工作。

Answer 1

我有 EventBus 注释用于:

# Ensure annotations are kept for runtime use.
-keepattributes *Annotation*
# Don't remove any GreenRobot classes
-keep class de.greenrobot.** {*;}
# Don't remove any methods that have the @Subscribe annotation
-keepclassmembers class ** {
    @de.greenrobot.event.Subscribe <methods>;
}

请注意，这还可以确保您的方法名称仍然会被混淆。