我的项目包含一些库(ViewPagerIndicator、ActionbarSherlock、SlidingMenu...)。使用混淆器后，我的应用程序每次启动时都会崩溃。下面是错误日志

java.lang.NoClassDefFoundError:android.support.v4.appp.FragmentActivity$2 at android.support.v4.app.FragmentActivity.<init> (Unknown Source)....

这是我的混淆器脚本:

    -injars      bin/classes
-injars      libs
-outjars     bin/classes-processed.jar

-dontpreverify
-repackageclasses ''
-allowaccessmodification
-optimizations !code/simplification/arithmetic
-keepattributes *Annotation*
-verbose

-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.support.v4.app.FragmentActivity
-keep public class * extends android.support.v4.app.Fragment

-keep public class * extends android.view.View {
    public <init>(android.content.Context);
    public <init>(android.content.Context, android.util.AttributeSet);
    public <init>(android.content.Context, android.util.AttributeSet, int);
    public void set*(...);
}

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

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

-keepclassmembers class * extends android.content.Context {
   public void *(android.view.View);
   public void *(android.view.MenuItem);
}

-keepclassmembers class * implements android.os.Parcelable {
    static android.os.Parcelable$Creator CREATOR;
}

-keepclassmembers class **.R$* {
    public static <fields>;
}



-dontwarn android.support.**
-dontwarn com.google.android.maps.**
-dontwarn com.slidingmenu.lib.app.SlidingMapActivity
-keep class android.support.** { *; }
-keep class com.actionbarsherlock.** { *; }
-keep interface com.actionbarsherlock.** { *; }
-keep class com.slidingmenu.** { *; }
-keep interface com.slidingmenu.** { *; }
-keep public class com.viewpagerindicator.** { *; }
-keep public interface com.viewpagerindicator.** { *; }

有谁知道我的 proguard 脚本有什么问题吗？请让我知道，提前谢谢。

最佳答案

而不是具体的包名

-keep public class * extends android.support.v4.app.FragmentActivity
-keep public class * extends android.support.v4.app.Fragment

改成这样:

-keep class android.support.v4.app.** { *; }
-keep interface android.support.v4.app.** { *; }

在它正在查找的错误中(注意额外的 p):

android.support.v4.appp.FragmentActivity$2 

不仅仅是

android.support.v4.app.FragmentActivity.<init>

编辑，不确定它可能是什么，这是我的一个使用支持库和 ActionBarSherlock 的应用程序的完整混淆器。

##---------------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 ----------

# Remove Logging statements
-assumenosideeffects class android.util.Log {
    public static *** d(...);
    public static *** v(...);
    public static *** e(...);
    public static *** i(...);
}

##---------------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.antew.redditinpictures.library.imgur.** { *; }
-keep class com.antew.redditinpictures.library.reddit.** { *; }

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



##---------------Begin: proguard configuration for ActionBarSherlock  ----------
-keep class android.support.v4.app.** { *; }
-keep interface android.support.v4.app.** { *; }
-keep class com.actionbarsherlock.** { *; }
-keep interface com.actionbarsherlock.** { *; }

##---------------End:   proguard configuration for ActionBarSherlock  ----------

关于android - 使用混淆器时出现 NoClassDefFoundError，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/13624503/