前卫和Scoreloop

Question

我试图在我的Android项目上使用Proguard，但在运行时在Scoreloop (版本3.0.3)库上不断收到相同的错误……

我在project.properties文件中定义了proguard配置文件，如下所示：

proguard.config=${sdk.dir}/tools/proguard/proguard-android-optimize.txt:proguard-project.txt
proguard.enabled=true

下面是我的proguard-project.txt文件(其中包含了所有内容，以防我在哪里做错了……)：

# ####### #
# Project #
# ####### #
-keep public class * extends android.app.Activity
-keep public class * extends android.app.Application
-keep public class * extends android.app.Service
-keep public class * extends android.content.BroadcastReceiver
-keep public class * extends android.content.ContentProvider
-keep public class * extends android.app.backup.BackupAgentHelper
-keep public class * extends android.preference.Preference


# ##### #
# AdMob #
# ##### #
-keep public class com.google.ads.** {*;}
-keep public class com.google.gson.** {*;}


# #### #
# ACRA #
# #### #
# we need line numbers in our stack traces otherwise they are pretty useless
-renamesourcefileattribute SourceFile
-keepattributes SourceFile,LineNumberTable

# ACRA needs "annotations" so add this... 
-keepattributes *Annotation*

# keep this class so that logging will show 'ACRA' and not a obfuscated name like 'a'.
# Note: if you are removing log messages elsewhere in this file then this isn't necessary
-keep class org.acra.ACRA {*;}

# keep this around for some enums and classes that ACRA needs
-keep class org.acra.ReportingInteractionMode {*;}
#-keep class org.acra.ReportField {*;}
-keepnames class org.acra.ReportField {*;}

# keep this otherwise it is removed by ProGuard
-keep public class org.acra.ErrorReporter {
    public void addCustomData(java.lang.String,java.lang.String);
}
-keep public class org.acra.ErrorReporter {
    public org.acra.ErrorReporter$ReportsSenderWorker handleSilentException(java.lang.Throwable);
}


# ######### #
# Scoreloop #
# ######### #
-dontwarn com.scoreloop.client.android.core.paymentprovider.**
-keep class com.scoreloop.client.android.core.paymentprovider.fortumo.FortumoPaymentProviderController {*;}
-keep class com.scoreloop.client.android.core.paymentprovider.fortumo.FortumoPaymentProvider {*;}
-keep class com.scoreloop.client.android.core.paymentprovider.paypalx.PayPalXPaymentProviderController {*;}
-dontwarn com.scoreloop.client.android.core.ui.WebViewDialog
-keep class com.scoreloop.client.android.core.ui.WebViewDialog {*;}
-keep class com.facebook.android.** {*;}


# ############## #
# In-App Billing #
# ############## #
# -keep class com.android.vending.billing.**


# ####### #
# OrmLite #
# ####### #
# OrmLite uses reflection
-keep class com.j256.**
-keepclassmembers class com.j256.** { *; }
-keep enum com.j256.**
-keepclassmembers enum com.j256.** { *; }
-keep interface com.j256.**
-keepclassmembers interface com.j256.** { *; }

我在运行时得到这个错误：

Caused by: java.lang.IllegalArgumentException: java.lang.NoSuchMethodException: <init> [class com.scoreloop.client.android.core.b.aw]
    at com.scoreloop.client.android.core.b.j.a(SourceFile:692)
    at com.scoreloop.client.android.core.b.j.<init>(SourceFile:368)
    at com.sofresh.games.megaflux.MegaFluxApplication.onCreate(SourceFile:106)
    at com.sofresh.games.megaflux.MegaFluxApplication_.onCreate(SourceFile:19)
    at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1000)
    at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4391)
    ... 10 more
 Caused by: java.lang.NoSuchMethodException: <init> [class com.scoreloop.client.android.core.b.aw]
    at java.lang.Class.getConstructorOrMethod(Class.java:460)
    at java.lang.Class.getConstructor(Class.java:431)
    at com.scoreloop.client.android.core.b.j.a(SourceFile:684)

从文件mapping.txt中，我发现了以下关于有问题的类和调用的信息：

com.scoreloop.client.android.core.model.Client -> com.scoreloop.client.android.core.b.j:
    java.util.Map a -> a
    com.scoreloop.client.android.core.model.ClientObserver b -> b
    com.scoreloop.client.android.core.model.Session c -> c
    103:104:boolean a(java.util.Properties,java.lang.String,boolean) -> a
    155:178:java.util.Properties a(android.content.Context) -> a
    182:185:void a(java.util.Properties,java.lang.String) -> a
    188:194:void a(java.util.Properties,java.lang.String,java.lang.String) -> a
    198:232:void a(android.content.Context,java.lang.String) -> a
    380:387:void a(java.util.Properties) -> a
    638:640:int b(java.util.Properties,java.lang.String) -> b
    684:692:void a(java.lang.Class) -> a
    708:711:void a$2a1b557e(com.scoreloop.client.android.core.model.Session) -> a
    715:718:boolean a(com.scoreloop.client.android.core.model.Session) -> b
    722:723:void b(android.content.Context) -> b
[...]
com.scoreloop.client.android.core.model.Session -> com.scoreloop.client.android.core.b.aw:
[...]

所以我认为错误是说它找不到接受会话的客户端的构造函数。我尝试将以下内容添加到我的proguard conf：

-keep class com.scoreloop.client.android.core.model.** {*;}
-keepclassmembers class com.scoreloop.client.android.core.model.**

不幸的是，现在我得到了这个错误：

Caused by: java.lang.IllegalArgumentException: java.lang.NoSuchMethodException: <init> [class com.scoreloop.client.android.core.model.Session]
    at com.scoreloop.client.android.core.model.Client.a(SourceFile:692)
    at com.scoreloop.client.android.core.model.Client.a(SourceFile:605)
    at com.scoreloop.client.android.core.model.Client.<init>(SourceFile:368)
    at com.blabla.MyApplication.onCreate(SourceFile:106)
    at com.blabla.MyApplication_.onCreate(SourceFile:19)
    at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1000)
    at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4391)
    ... 10 more
 Caused by: java.lang.NoSuchMethodException: <init> [class com.scoreloop.client.android.core.model.Session]
    at java.lang.Class.getConstructorOrMethod(Class.java:460)
    at java.lang.Class.getConstructor(Class.java:431)
    at com.scoreloop.client.android.core.model.Client.a(SourceFile:684)

现在我有点不知道下一步该怎么做了。对这个错误有什么想法和启示吗？

Answer 1

在得到Scoreloop支持人员的响应和我这边的一些测试之后，下面是Scoreloop的ProGuard配置：

# ######### #
# Scoreloop #
# ######### #
-dontwarn com.scoreloop.client.android.core.paymentprovider.**
-keep class com.scoreloop.client.android.core.paymentprovider.fortumo.FortumoPaymentProviderController {*;}
-keep class com.scoreloop.client.android.core.paymentprovider.fortumo.FortumoPaymentProvider {*;}
-keep class com.scoreloop.client.android.core.paymentprovider.paypalx.PayPalXPaymentProviderController {*;}
-dontwarn com.scoreloop.client.android.core.ui.WebViewDialog
-keep class com.scoreloop.client.android.core.ui.WebViewDialog {*;}
-keep class com.facebook.android.** {*;}
-keep class com.scoreloop.client.android.core.** { *; }

Answer 2

代码执行反射，并且找不到构造函数，因此您确实必须确保它被保留。您的-keep选项将保留指定包及其子包中的所有类/字段/方法：

-keep class com.scoreloop.client.android.core.model.** {*;}

然而，代码可能试图在这个包之外查找类的构造函数--不幸的是，堆栈跟踪不能说明这一点。您必须弄清楚这是哪个类(或一组类)，然后保留它的构造函数。

注意，您的-keepclassmembers选项不做任何事情(因为它没有指定任何类成员)，但这并不是必需的。