我在一个内置到AAR文件中的图书馆项目中使用Volley。
我将AAR文件添加到主项目中。构建主项目时，出现以下错误：
abstract class ParentExampleActivity extends AppCompatActivity{
public abstract void reset(View view);
public abstract void update(View view);
}
class ExampleActivity extends ParentExampleActivity {
public void reset(View view) {...}
public void update(View view) {...}
public void alter(View view) {...}
}
我猜想它与Proguard配置有关，但是即使在创建AAR时构建调试变体，也会出现错误。
这是我的图书馆项目的Proguard文件：
Failed to find byte code for com/android/volley/Response$Listener关于什么可能导致这种情况的任何提示？
更新：我已经针对# Volley
-dontwarn com.android.volley.**
-dontwarn com.android.volley.error.**
-keep class com.android.volley.** { *; }
-keep class com.android.volley.toolbox.** { *; }
-keep class com.android.volley.Response$* { *; }
-keep class com.android.volley.Request$* { *; }
-keep class com.android.volley.RequestQueue$* { *; }
-keep class com.android.volley.toolbox.HurlStack$* { *; }
-keep class com.android.volley.toolbox.ImageLoader$* { *; }
-keep interface com.android.volley.** { *; }
-keep class org.apache.commons.logging.*
Proguard文件尝试了此https://stackoverflow.com/a/27052696/1020311，但是在构建主项目时仍然遇到相同的错误。
我还尝试了默认的consumerProguardFiles文件以及我的Volley行：
proguard-library.pro另外，我尝试注释掉#
# This ProGuard configuration file illustrates how to process a program
# library, such that it remains usable as a library.
# Usage:
# java -jar proguard.jar @library.pro
#
# Specify the input jars, output jars, and library jars.
# In this case, the input jar is the program library that we want to process.
# -injars in.jar
# -outjars out.jar
# -libraryjars <java.home>/lib/rt.jar
# Save the obfuscation mapping to a file, so we can de-obfuscate any stack
# traces later on. Keep a fixed source file attribute and all line number
# tables to get line numbers in the stack traces.
# You can comment this out if you're not interested in stack traces.
#-printmapping out.map
-keepparameternames
-renamesourcefileattribute SourceFile
-keepattributes Exceptions,InnerClasses,Signature,Deprecated,
SourceFile,LineNumberTable,EnclosingMethod
# Preserve all annotations.
-keepattributes *Annotation*
# Preserve all public classes, and their public and protected fields and
# methods.
-keep public class * {
public protected *;
}
# Preserve all .class method names.
-keepclassmembernames class * {
java.lang.Class class$(java.lang.String);
java.lang.Class class$(java.lang.String, boolean);
}
# Preserve all native method names and the names of their classes.
-keepclasseswithmembernames class * {
native <methods>;
}
# Preserve the special static methods that are required in all enumeration
# classes.
-keepclassmembers class * extends java.lang.Enum {
public static **[] values();
public static ** valueOf(java.lang.String);
}
# Explicitly preserve all serialization members. The Serializable interface
# is only a marker interface, so it wouldn't save them.
# You can comment this out if your library doesn't use serialization.
# If your code contains serializable classes that have to be backward
# compatible, please refer to the manual.
-keepclassmembers class * implements java.io.Serializable {
static final long serialVersionUID;
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();
}
# Your library may contain more items that need to be preserved;
# typically classes that are dynamically created using Class.forName:
# -keep public class mypackage.MyClass
# -keep public interface mypackage.MyInterface
# -keep public class * implements mypackage.MyInterface
# Volley
-dontwarn com.android.volley.**
-dontwarn com.android.volley.error.**
-keep class com.android.volley.** { *; }
-keep class com.android.volley.toolbox.** { *; }
-keep class com.android.volley.Response$* { *; }
-keep class com.android.volley.Request$* { *; }
-keep class com.android.volley.RequestQueue$* { *; }
-keep class com.android.volley.toolbox.HurlStack$* { *; }
-keep class com.android.volley.toolbox.ImageLoader$* { *; }
-keep interface com.android.volley.** { *; }
-keep class org.apache.commons.logging.*
中的Proguard行，因为该模块将是开源的，并且我不需要混淆，但是仍然没有运气。
这是build.gradle文件：
buildTypes我可以把AAR文件弄错吗？
谢谢！
答案 0 :(得分：2)
无法找到
的字节码com/android/volley/Response$Listener
我关心的是：
consumerProguardFiles 'proguard-library.pro'
您在release和defaultConfig块中都使用了这一行代码，我相信这会引起问题。
consumerProguardFiles 应该在defaultConfig中指定 而不是 buildTypes / release ，以便在使用应用程序的情况下也可以使用 在调试和发布模式下均采取防护措施（例如，避免使用65k dex 方法限制）
PS： Progaurd规则似乎不是问题。至少，您可以尝试更新Appcompat，然后测试项目，以及我创建的测试项目，并且该项目可以使用您当前的代码。
答案 1 :(得分：2)
在测试规则时，最好将-dontwarn注释掉并添加-verbose（在顶部）。
...所需的规则可能是：
-keep,includedescriptorclasses class com.android.volley.** { *; }
或带有两个**（对于所有其他条目也一样，只有一个*）
-keep class com.android.volley.Response$** { *; }
甚至可以明确地将其拼写清楚：
-keep class com.android.volley.Response$Listener { *; }
大约是这样：
-keepattributes *Annotation*
-keep class com.android.volley.** { *; }
-keep class com.android.volley.toolbox.** { *; }
-keep class com.android.volley.Response$** { *; }
-keep class com.android.volley.Request$** { *; }
-keep class com.android.volley.RequestQueue$** { *; }
-keep class com.android.volley.toolbox.HurlStack$** { *; }
-keep class com.android.volley.toolbox.ImageLoader$** { *; }
#-dontwarn com.android.volley.error.**
#-dontwarn com.android.volley.**
# not sure if this one is required
#-keep interface com.android.volley.** { *; }
-keep class org.apache.commons.logging.**
#-dontwarn org.apache.**