Android 混淆代碼總結

為了防止自己的勞動成果被別人竊取，混淆代碼能有效防止被反編譯，下面來總結以下混淆代碼的步驟：

1. 大家也許都注意到建立一個工程會看到項目下邊有這樣proguard-project.txt一個檔案，這個對混淆代碼很重要，如果你不小心刪掉了，沒關係，從其他地方拷貝一個過來

2. 最重要的就是在proguard-project.txt添加混淆的申明了：

a. 把所有你的jar包都申明進來，例如：
-libraryjars libs/apns_1.0.6.jar
-libraryjars libs/armeabi/libBaiduMapSDK_v2_3_1.so
-libraryjars libs/armeabi/liblocSDK4.so
-libraryjars libs/baidumapapi_v2_3_1.jar
-libraryjars libs/core.jar
-libraryjars libs/gesture-imageview.jar
-libraryjars libs/gson-2.0.jar
-libraryjars libs/infogracesound.jar
-libraryjars libs/locSDK_4.0.jar
-libraryjars libs/ormlite-android-4.48.jar
-libraryjars libs/ormlite-core-4.48.jar
-libraryjars libs/universal-image-loader-1.9.0.jar

b. 將你不需要混淆的部分申明進來，因為有些類經過混淆會導致程式編譯不通過，如下：

-keep public class * extends android.app.Fragment
-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 * extends android.support.v4.**
-keep public class com.android.vending.licensing.ILicensingService

--以上都是API裡邊的類，最好都要避免混淆

有些很特殊的，例如百度地圖，你需要添加以下申明：

-keep class com.baidu.** { *; }
-keep class vi.com.gdi.bgl.android.**{*;}

根據我的經驗，一般model最好避免混淆（model無關緊要，不混淆也沒多大關係）如：

-keep class com.bank.pingan.model.** { *; }
下面在貼上關於Umeng分享統計的避免混淆的申明

-dontwarn android.support.v4.**
-dontwarn org.apache.commons.net.**
-dontwarn com.tencent.**

-keepclasseswithmembernames class * {
native ;
}

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

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

-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}

-keep class * implements android.os.Parcelable {
public static final android.os.Parcelable$Creator *;
}

-keepclasseswithmembers class * {
public (android.content.Context);
}

-dontshrink
-dontoptimize
-dontwarn com.google.android.maps.**
-dontwarn android.webkit.WebView
-dontwarn com.umeng.**
-dontwarn com.tencent.weibo.sdk.**
-dontwarn com.facebook.**

-keep enum com.facebook.**
-keepattributes Exceptions,InnerClasses,Signature
-keepattributes *Annotation*
-keepattributes SourceFile,LineNumberTable

-keep public interface com.facebook.**
-keep public interface com.tencent.**
-keep public interface com.umeng.socialize.**
-keep public interface com.umeng.socialize.sensor.**
-keep public interface com.umeng.scrshot.**

-keep public class com.umeng.socialize.* {*;}
-keep public class javax.**
-keep public class android.webkit.**

-keep class com.facebook.**
-keep class com.umeng.scrshot.**
-keep public class com.tencent.** {*;}
-keep class com.umeng.socialize.sensor.**

-keep class com.tencent.mm.sdk.openapi.WXMediaMessage {*;}

-keep class com.tencent.mm.sdk.openapi.** implements com.tencent.mm.sdk.openapi.WXMediaMessage$IMediaObject {*;}

-keep class im.yixin.sdk.api.YXMessage {*;}
-keep class im.yixin.sdk.api.** implements im.yixin.sdk.api.YXMessage$YXMessageData{*;}

-keep public class [your_pkg].R$*{
public static final int *;
}

3.以上工作完成，混淆工作就完成了一大半了，最後需要做的就是在project.properties檔案中加上你的混淆檔案申明了，如下：

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

4. OK， 最後一步，打簽名包測試，如果有問題，仔細看下Log也許有得類不能混淆，那麼你得加入到proguard-project.txt檔案中

-------以上就是混淆代碼的全過程了

最後貼上proguard-project.txt的全部代碼：

# 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 *;#}-optimizationpasses 5-dontusemixedcaseclassnames-dontskipnonpubliclibraryclasses-dontpreverify-verbose-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*-keepattributes *Annotation*-keepattributes Signature-libraryjars libs/apns_1.0.6.jar-libraryjars libs/armeabi/libBaiduMapSDK_v2_3_1.so-libraryjars libs/armeabi/liblocSDK4.so-libraryjars libs/baidumapapi_v2_3_1.jar-libraryjars libs/core.jar-libraryjars libs/gesture-imageview.jar-libraryjars libs/gson-2.0.jar-libraryjars libs/infogracesound.jar-libraryjars libs/locSDK_4.0.jar-libraryjars libs/ormlite-android-4.48.jar-libraryjars libs/ormlite-core-4.48.jar-libraryjars libs/universal-image-loader-1.9.0.jar-keep class com.baidu.** { *; } -keep class vi.com.gdi.bgl.android.**{*;}-keep public class * extends android.app.Fragment  -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 * extends android.support.v4.**-keep public class com.android.vending.licensing.ILicensingService-keep class com.google.gson.stream.** { *; }-keep class com.google.gson.examples.android.model.** { *; }-keep class com.uuhelper.Application.** { *; }-keep class net.sourceforge.zbar.** { *; }-keep class com.google.android.gms.** { *; } -keep class com.bank.pingan.model.** { *; }-keep public class * extends com.j256.ormlite.android.apptools.OrmLiteSqliteOpenHelper-keep public class * extends com.j256.ormlite.android.apptools.OpenHelperManager -keep class com.android.vending.licensing.ILicensingService-keep class android.support.v4.** { *; }  -keep class org.apache.commons.net.** { *; }  -keep class com.tencent.** { *; }   -keep class com.umeng.** { *; }  -keep class com.umeng.analytics.** { *; }  -keep class com.umeng.common.** { *; }  -keep class com.umeng.newxp.** { *; }   -keep class com.j256.ormlite.** { *; }  -keep class com.j256.ormlite.android.** { *; }  -keep class com.j256.ormlite.field.** { *; }  -keep class com.j256.ormlite.stmt.** { *; } -dontwarn android.support.v4.**  -dontwarn org.apache.commons.net.** -dontwarn com.tencent.**  -keepclasseswithmembernames class * {    native ;}-keepclasseswithmembernames class * {    public (android.content.Context, android.util.AttributeSet);}-keepclasseswithmembernames class * {    public (android.content.Context, android.util.AttributeSet, int);}-keepclassmembers enum * {    public static **[] values();    public static ** valueOf(java.lang.String);}-keep class * implements android.os.Parcelable {  public static final android.os.Parcelable$Creator *;}-keepclasseswithmembers class * {    public (android.content.Context);}-dontshrink-dontoptimize-dontwarn com.google.android.maps.**-dontwarn android.webkit.WebView-dontwarn com.umeng.**-dontwarn com.tencent.weibo.sdk.**-dontwarn com.facebook.**-keep enum com.facebook.**-keepattributes Exceptions,InnerClasses,Signature-keepattributes *Annotation*-keepattributes SourceFile,LineNumberTable-keep public interface com.facebook.**-keep public interface com.tencent.**-keep public interface com.umeng.socialize.**-keep public interface com.umeng.socialize.sensor.**-keep public interface com.umeng.scrshot.**-keep public class com.umeng.socialize.* {*;}-keep public class javax.**-keep public class android.webkit.**-keep class com.facebook.**-keep class com.umeng.scrshot.**-keep public class com.tencent.** {*;}-keep class com.umeng.socialize.sensor.**-keep class com.tencent.mm.sdk.openapi.WXMediaMessage {*;}-keep class com.tencent.mm.sdk.openapi.** implements com.tencent.mm.sdk.openapi.WXMediaMessage$IMediaObject {*;}-keep class im.yixin.sdk.api.YXMessage {*;}-keep class im.yixin.sdk.api.** implements im.yixin.sdk.api.YXMessage$YXMessageData{*;}-keep public class [your_pkg].R$*{    public static final int *;}

OK，That's all.

--Thank you!