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android - proguard 缺少类型参数

转载 作者:IT老高 更新时间:2023-10-28 21:49:59 26 4
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我尝试使用 ProGuard 混淆我的 android 应用程序代码。但在此之后,我的应用程序在运行时出现异常:

11-15 01:46:26.818: W/System.err(21810): java.lang.RuntimeException: Missing type parameter.
11-15 01:46:26.828: W/System.err(21810): at da.<init>(Unknown Source)
11-15 01:46:26.828: W/System.err(21810): at gc.<init>(Unknown Source)
11-15 01:46:26.828: W/System.err(21810): at fx.f(Unknown Source)
11-15 01:46:26.828: W/System.err(21810): at com.yourshows.activity.UnwatchedActivity.onResume(Unknown Source)

我检查了一个 mapping 文件,发现:

com.google.gson.reflect.TypeToken -> da:

我认为这是我的应用程序中的行,例如:

        Type mapType = new TypeToken<Map<Integer, WatchedEpisodes>>(){}.getType(); // define generic type
jsData = gson.fromJson(r, mapType);

我不明白我应该怎么做?不要使用少于三个字符的变量名或什么?

更新:answer

最佳答案

答案是:使用这个 proguard.cfg

##---------------Begin: proguard configuration common for all Android apps ----------
-optimizationpasses 5
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-dontskipnonpubliclibraryclassmembers
-dontpreverify
-verbose
-dump class_files.txt
-printseeds seeds.txt
-printusage unused.txt
-printmapping mapping.txt
-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*


-allowaccessmodification
-keepattributes *Annotation*
-renamesourcefileattribute SourceFile
-keepattributes SourceFile,LineNumberTable
-repackageclasses ''


-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
-keep public class com.android.vending.licensing.ILicensingService
-dontnote com.android.vending.licensing.ILicensingService


# Explicitly preserve all serialization members. The Serializable interface
# is only a marker interface, so it wouldn't save them.
-keepclassmembers class * implements java.io.Serializable {
static final long serialVersionUID;
private static final java.io.ObjectStreamField[] serialPersistentFields;
private void writeObject(java.io.ObjectOutputStream);
private void readObject(java.io.ObjectInputStream);
java.lang.Object writeReplace();
java.lang.Object readResolve();
}


# Preserve all native method names and the names of their classes.
-keepclasseswithmembernames class * {
native <methods>;
}


-keepclasseswithmembernames class * {
public <init>(android.content.Context, android.util.AttributeSet);
}


-keepclasseswithmembernames class * {
public <init>(android.content.Context, android.util.AttributeSet, int);
}


# Preserve static fields of inner classes of R classes that might be accessed
# through introspection.
-keepclassmembers class **.R$* {
public static <fields>;
}


# Preserve the special static methods that are required in all enumeration classes.
-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}


-keep public class * {
public protected *;
}


-keep class * implements android.os.Parcelable {
public static final android.os.Parcelable$Creator *;
}
##---------------End: proguard configuration common for all Android apps ----------


##---------------Begin: proguard configuration for Gson ----------
# Gson uses generic type information stored in a class file when working with fields. Proguard
# removes such information by default, so configure it to keep all of it.
-keepattributes Signature


# Gson specific classes
-keep class sun.misc.Unsafe { *; }
#-keep class com.google.gson.stream.** { *; }


# Application classes that will be serialized/deserialized over Gson
-keep class com.google.gson.examples.android.model.** { *; }


##---------------End: proguard configuration for Gson ----------

非常感谢这个项目的所有者 --> google-gson


UPD:google/gson 有他们为 android 应用程序配置 proguard 的示例。

see on github

他们建议使用这个配置模板

##---------------Begin: proguard configuration for Gson  ----------
# Gson uses generic type information stored in a class file when working with fields. Proguard
# removes such information by default, so configure it to keep all of it.
-keepattributes Signature

# For using GSON @Expose annotation
-keepattributes *Annotation*

# Gson specific classes
-keep class sun.misc.Unsafe { *; }
#-keep class com.google.gson.stream.** { *; }

# Application classes that will be serialized/deserialized over Gson
-keep class com.google.gson.examples.android.model.** { *; }

##---------------End: proguard configuration for Gson ----------

关于android - proguard 缺少类型参数,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/8129040/

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