java 配置 proguard 以排除扩展 android.content.Context 的库 jar
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Configure proguard to exclude library jar which extends android.content.Context
提问by Vinay S Shenoy
I'm integrating a library into a device for a project which is going to be embedded into the device OS. For this, we're integrating a library jar which overrides the Android framework Context.
我正在将一个库集成到一个项目的设备中，该项目将嵌入到设备操作系统中。为此，我们正在集成一个覆盖 Android 框架上下文的库 jar。
Because of this, trying to enable Proguard for the app gives me the following error - "there were 220 instances of library classes depending on program classes".
因此，尝试为应用程序启用 Proguard 会给我以下错误 - “有 220 个库类实例取决于程序类”。
All of these files are Widgets and Views. How can I fix this?
所有这些文件都是小部件和视图。我怎样才能解决这个问题？
This is the content of my proguard-project.txt
这是我的 proguard-project.txt 的内容
-injars bin/classes
-outjars bin/classes-processed.jar
-libraryjars /Users/me/android-sdk-mac_86/platforms/android-15/android.jar
-libraryjars libs/library-that-overrides-context.jar
-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.content.Context
This is the content of my proguard-android.txt
这是我的 proguard-android.txt 的内容
# This is a configuration file for ProGuard.
# http://proguard.sourceforge.net/index.html#manual/usage.html
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-verbose
# Optimization is turned off by default. Dex does not like code run
# through the ProGuard optimize and preverify steps (and performs some
# of these optimizations on its own).
-dontoptimize
-dontpreverify
# Note that if you want to enable optimization, you cannot just
# include optimization flags in your own project configuration file;
# instead you will need to point to the
# "proguard-android-optimize.txt" file instead of this one from your
# project.properties file.
-keepattributes *Annotation*
-keep public class com.google.vending.licensing.ILicensingService
-keep public class com.android.vending.licensing.ILicensingService
# For native methods, see http://proguard.sourceforge.net/manual/examples.html#native
-keepclasseswithmembernames class * {
native <methods>;
}
# keep setters in Views so that animations can still work.
# see http://proguard.sourceforge.net/manual/examples.html#beans
-keepclassmembers public class * extends android.view.View {
void set*(***);
*** get*();
}
# We want to keep methods in Activity that could be used in the XML attribute onClick
-keepclassmembers class * extends android.app.Activity {
public void *(android.view.View);
}
# For enumeration classes, see http://proguard.sourceforge.net/manual/examples.html#enumerations
-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}
-keep class * implements android.os.Parcelable {
public static final android.os.Parcelable$Creator *;
}
-keepclassmembers class **.R$* {
public static <fields>;
}
# The support library contains references to newer platform versions.
# Don't warn about those in case this app is linking against an older
# platform version. We know about them, and they are safe.
-dontwarn android.support.**
采纳答案by Vinay S Shenoy
Even if I'd marked my library as a libraryjar, I also had to add the lines
即使我将我的库标记为 libraryjar，我也必须添加这些行
-keep public class android.content.** { *; }to the project proguard config file to fix the issues.
-keep public class android.content.** { *; }到项目 proguard 配置文件以解决问题。
回答by Eric Lafortune
The Android Ant/Eclipse builds automatically specify all necessary -injars/-outjars/-libraryjars options for you. You should only specify these options if you have a custom build process. Otherwise, you'll get lots of warnings about duplicate classes and possibly other problems.
Android Ant/Eclipse 构建会自动为您指定所有必需的 -injars/-outjars/-libraryjars 选项。如果您有自定义构建过程，您应该只指定这些选项。否则，您会收到很多关于重复类和可能的其他问题的警告。
If you do need to specify -injars/-outjars/-libraryjars options, classes specified with -injars can depend on classes specified with -libraryjars, but not the other way around. Cfr. ProGuard manual > Troubleshooting > Warning: library class ... depends on program class ...
如果您确实需要指定 -injars/-outjars/-libraryjars 选项，则使用 -injars 指定的类可以依赖于使用 -libraryjars 指定的类，但反过来不行。参考文献 ProGuard 手册 > 故障排除 >警告：库类...取决于程序类...
