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混淆报错，super classes have no public methods with the @Subscribe annotation_subscriber class and its super classes have no pub

作者：2023面试高手 | 2024-03-16 18:16:45

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subscriber class and its super classes have no public methods with the @subs

首先看一下错误Log

  1. 01-10 09:57:17.061 8649-8649/com.aaa.bbb E/AndroidRuntime: FATAL EXCEPTION: main
  2.                                                                Process: com.aaa.bbb, PID: 8649
  3.                                                                org.greenrobot.eventbus.EventBusException: Subscriber class com.aaa.bbb.ccc.b.a and its super classes have no public methods with the @Subscribe annotation
  4.                                                                    at org.greenrobot.eventbus.SubscriberMethodFinder.findSubscriberMethods(Unknown Source:52)
  5.                                                                    at org.greenrobot.eventbus.EventBus.register(Unknown Source:6)
  6.                                                                    at com.icbc.bjmain.view.b.a.onCreate(Unknown Source:37)
  7.                                                                    at android.support.v4.app.Fragment.performCreate(Unknown Source:15)
  8.                                                                    at android.support.v4.app.FragmentManagerImpl.moveToState(Unknown Source:440)
  9.                                                                    at android.support.v4.app.FragmentTransition.addToFirstInLastOut(Unknown Source:76)
  10.                                                                    at android.support.v4.app.FragmentTransition.calculateFragments(Unknown Source:18)
  11.                                                                    at android.support.v4.app.FragmentTransition.startTransitions(Unknown Source:39)
  12.                                                                    at android.support.v4.app.FragmentManagerImpl.executeOpsTogether(Unknown Source:100)
  13.                                                                    at android.support.v4.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(Unknown Source:97)
  14.                                                                    at android.support.v4.app.FragmentManagerImpl.execSingleAction(Unknown Source:31)
  15.                                                                    at android.support.v4.app.BackStackRecord.commitNowAllowingStateLoss(Unknown Source:6)
  16.                                                                    at android.support.v4.app.FragmentPagerAdapter.finishUpdate(Unknown Source:6)
  17.                                                                    at android.support.v4.view.ViewPager.populate(Unknown Source:388)
  18.                                                                    at android.support.v4.view.ViewPager.populate(Unknown Source:2)
  19.                                                                    at android.support.v4.view.ViewPager.onMeasure(Unknown Source:207)
  20.                                                                    at android.view.View.measure(View.java:22281)
  21.                                                                    at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:715)
  22.                                                                    at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:461)
  23.                                                                    at android.view.View.measure(View.java:22281)
  24.                                                                    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6668)
  25.                                                                    at android.support.design.widget.CoordinatorLayout.onMeasureChild(Unknown Source:0)
  26.                                                                    at android.support.design.widget.HeaderScrollingViewBehavior.onMeasureChild(Unknown Source:82)
  27.                                                                    at android.support.design.widget.AppBarLayout$ScrollingViewBehavior.onMeasureChild(Unknown Source:0)
  28.                                                                    at android.support.design.widget.CoordinatorLayout.onMeasure(Unknown Source:246)
  29.                                                                    at android.view.View.measure(View.java:22281)
  30.                                                                    at android.support.v4.widget.DrawerLayout.onMeasure(Unknown Source:204)
  31.                                                                    at android.view.View.measure(View.java:22281)
  32.                                                                    at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:715)
  33.                                                                    at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:461)
  34.                                                                    at android.view.View.measure(View.java:22281)
  35.                                                                    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6668)
  36.                                                                    at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
  37.                                                                    at android.view.View.measure(View.java:22281)
  38.                                                                    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6668)
  39.                                                                    at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
  40.                                                                    at android.support.v7.widget.ContentFrameLayout.onMeasure(Unknown Source:125)
  41.                                                                    at android.view.View.measure(View.java:22281)
  42.                                                                    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6668)
  43.                                                                    at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1539)
  44.                                                                    at android.widget.LinearLayout.measureVertical(LinearLayout.java:823)
  45.                                                                    at android.widget.LinearLayout.onMeasure(LinearLayout.java:702)
  46.                                                                    at android.view.View.measure(View.java:22281)
  47.                                                                    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6668)
  48.                                                                    at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
  49.                                                                    at android.view.View.measure(View.java:22281)
  50.                                                                    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6668)
  51.                                                                    at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1539)
  52.                                                                    at android.widget.LinearLayout.measureVertical(LinearLayout.java:823)
  53.                                                                    at android.widget.LinearLayout.onMeasure(LinearLayout.java:702)
  54.                                                                    at android.view.View.measure(View.java:22281)
  55.                                                                    at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6668)
  56.                                                                    at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
  57.                                                                    at com.android.internal.policy.DecorView.onMeasure(DecorView.java:834)

项目中为了安全考虑，添加了混淆。没想到开启混淆后，在proguard-rules.pro文件写了一些混淆规则。但是没想到，还是出现了问题。原来是我项目中的EventBus出现的问题，然而，我已经将EventBus防混淆规则写了，为啥还是出现问题。百思不得其解。看了一下log。发现原来是没有@Subscribe这个注解。我明明已经添加上去了啊。我想，很有可能是混淆将我的注解给混淆掉了。怎么办呢。这时，我看到了一篇帖子：https://stackoverflow.com/questions/35874055/eventbus-subscriber-class-and-its-super-classes-have-no-public-methods-with-th  

大神上面有一个防止这个@Subscribe注解被混淆的一个规则

  1. -keepattributes *Annotation*
  2. -keepclassmembers class ** {
  3.     @org.greenrobot.eventbus.Subscribe <methods>;
  4. }
  5. -keep enum org.greenrobot.eventbus.ThreadMode { *; }

感谢大佬，添加完这个规则后，我的项目正常运行了。

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