在使用Eclipse或Ant打包应用程序时，都是使用Android工程目录的project.properties文件来指定配置。关于Android中如何使用ant打包请参考《Android中使用Ant编译打包》

在使用Eclipse新建一个工程，都会在工程目录下生产配置project.properties和proguard-project.tx。

文件如下所示：

例1

project.properties用于配置Android工程的一些属性，#号的话表示当前行是注释，这里的proguard.config就用于指定ProGuard的混淆配置文件，并对使用release方式打包应用程序时开启代码混淆功能。对于是否是使用release方式打包，和AndroidManifest.xml中application的android:debuggable属性有很多关系。如果该值为android:debuggable="true"，那么最终就是debug方式打包。最明智的方式就是在AndroidManifest.xml并不显示的指定它，而是是打包工具在打包时来决定它最终的值。对于ant就是ant release或ant debug。而对于直接在Eclipse中使用run 或debgu来打包的话就是debug,使用export的话就是release.

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

这里的话指定了混淆的基本配置文件proguard-android.txt，和混淆的个性化配置文件proguard-project.txt。这里proguard-project.txt文件用于对前面的基本的混淆配置文件proguard-android.txt的配置进行override和添加。

混淆的基本配置文件proguard-android.txt如下：

# 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.**

以下则个是我们项目混淆的个性化配置文件proguard-project.txt

# To enable ProGuard in your project, edit project.properties
# to define the proguard.config property as described in that file.
#
# Add project specific ProGuard rules here.
# By default, the flags in this file are appended to flags specified
# in ${sdk.dir}/tools/proguard/proguard-android.txt
# You can edit the include path and order by changing the ProGuard
# include property in project.properties.
#
# For more details, see
# http://developer.android.com/guide/developing/tools/proguard.html

# Add any project specific keep options here:

# If your project uses WebView with JS, uncomment the following
# and specify the fully qualified class name to the JavaScript interface
# class:
#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
# public *;
#}

-renamesourcefileattribute SourceFile
-keepattributes SourceFile,LineNumberTable
-dontwarn android.**
-dontwarn edu.edut.lsf.payment.link.**
-libraryjars ..\Download_Install\lib\classes.jar

-keep class org.jboss.netty.util.internal.AtomicFieldUpdaterUtil
-keep class org.jboss.netty.util.internal.AtomicFieldUpdaterUtil$Node
-keep class org.jboss.netty.util.internal.LinkedTransferQueue$Node
-keep class edu.edut.robin.activities.LeWebJsActivity$AppStoreInterface
-keepclasseswithmembers class * {
public static void main(java.lang.String[]);
}
-keepclasseswithmembers class org.jboss.netty.util.internal.AtomicFieldUpdaterUtil$Node {
*;
}

-keepclasseswithmembers class edu.edut.robin.activities.LeWebActionActivity$AppstoreWebInterface {
*;
}
-keepclasseswithmembers class edu.edut.robin.utils.SilentInstallAssistant$* {
*;
}
-keepclasseswithmembers class edu.edut.robin.silentinstaller.utils.SilentInstallAssistant$* {
*;
}
-keepclasseswithmembers class edu.edut.robin.utils.Pm$* {
*;
}
-keepclasseswithmembers class org.jboss.netty.util.internal.LinkedTransferQueue {
volatile transient org.jboss.netty.util.internal.LinkedTransferQueue$Node head;
volatile transient org.jboss.netty.util.internal.LinkedTransferQueue$Node tail;
volatile transient int sweepVotes;

}
-keepclasseswithmembers class org.jboss.netty.util.internal.LinkedTransferQueue$Node {
*;
}
-keepclasseswithmembers class edu.edut.robin.activities.LeWebJsActivity$AppStoreInterface {
*;
}
-keepclasseswithmembers class * extends edu.edut.lsf.payment.WebSubmitInterface {
*;
}
-keepclasseswithmembers class edu.edut.lsf.payment.WebSubmitInterface {
*;
}
-keep public class com.unionpay.** {*; }
-keep public class edu.edut.lsf.** {*; }

注：由于牵扯到保密的问题，一些关于项目的东西换成了edu.edut或edu.edut.robin

另外以下是关于混淆配置文件的一些说明：

结束！