仅使用Proguard:无法初始化DaoConfig => ArrayIndexOutOfBoundsException

Question

我使用以下ProGuard规则:

-keepclassmembers class * extends org.greenrobot.greendao.AbstractDao { *; }
-keep class **$Properties

-keep class org.greenrobot.greendao.**
-keepclassmembers class org.greenrobot.greendao.** { *; }

# If you do not use SQLCipher:
-dontwarn org.greenrobot.greendao.database.**

# If you do not use RxJava:
-dontwarn rx.**

启动应用程序时,我收到以下崩溃日志:

java.lang.RuntimeException: Unable to create application my.app.package.MyApplication: org.greenrobot.greendao.DaoException: Could not init DAOConfig
   at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4569)
   at android.app.ActivityThread.access$1500(ActivityThread.java:148)
   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
   at android.os.Handler.dispatchMessage(Handler.java:102)
   at android.os.Looper.loop(Looper.java:135)
   at android.app.ActivityThread.main(ActivityThread.java:5272)
   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:909)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:704)
Caused by: org.greenrobot.greendao.DaoException: Could not init DAOConfig
   at org.greenrobot.greendao.internal.DaoConfig.(Unknown Source)
   at org.greenrobot.greendao.AbstractDaoMaster.registerDaoClass(Unknown Source)
   at my.app.package.database.model.DaoMaster.(Unknown Source)
   at my.app.package.database.model.DaoMaster.(Unknown Source)
   at my.app.package.ZamgApplication.onCreate(Unknown Source)
   at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1011)
   at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4566)
   at android.app.ActivityThread.access$1500(ActivityThread.java:148) 
   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
   at android.os.Handler.dispatchMessage(Handler.java:102) 
   at android.os.Looper.loop(Looper.java:135) 
   at android.app.ActivityThread.main(ActivityThread.java:5272) 
   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:909) 
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:704) 
Caused by: java.lang.ArrayIndexOutOfBoundsException: length=5; index=6
   at org.greenrobot.greendao.internal.DaoConfig.reflectProperties(Unknown Source)
   at org.greenrobot.greendao.internal.DaoConfig.(Unknown Source) 
   at org.greenrobot.greendao.AbstractDaoMaster.registerDaoClass(Unknown Source) 
   at my.app.package.database.model.DaoMaster.(Unknown Source) 
   at my.app.package.database.model.DaoMaster.(Unknown Source) 
   at my.app.package.ZamgApplication.onCreate(Unknown Source) 
   at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1011) 
   at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4566) 
   at android.app.ActivityThread.access$1500(ActivityThread.java:148) 
   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
   at android.os.Handler.dispatchMessage(Handler.java:102) 
   at android.os.Looper.loop(Looper.java:135) 
   at android.app.ActivityThread.main(ActivityThread.java:5272) 
   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:909) 
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:704) 

在没有ProGuard的情况下编译应用程序时,一切正常.

我在这里缺少任何配置吗？我在这方面找不到谷歌的任何东西......

Answer 1

你keep是Entity项目中的班级吗？
如果没有,keep你把你的Entity班级包装
成这样的
-keep class com.xxx.xxx.model.* {*;}

Answer 2

我遇到了同样的问题

似乎-keep class只能保证保留该类本身，但仍可以删除其成员

在我的情况下，类的某些静态final字段CustomDao$Properties被删除，最终导致索引超出范围异常

更换

-keep class **$Properties

与

-keep class **$Properties { *; }

解决了我的问题

Answer 3

看来指令：

-keep class org.greenrobot.greendao.**

没有被应用。正如您在日志中看到的那样，行如下：

at org.greenrobot.a.c.a.a(Unknown Source)
at org.greenrobot.a.c.a.(Unknown Source) 
at org.greenrobot.a.b.a(Unknown Source) 

表明下面的类org.greenrobot.greendao正在被混淆，而您的 ProGuard 指令告诉（或应该告诉）ProGuard 让它们保持不变。要解决此问题，请确保在proguardFilesAndroid 配置部分中正确引用了定义此内容的 ProGuard 规则文件：

proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

并且您的发布配置使用相同的proguard-rules.pro文件。