android程序代码混淆

android 代码混淆
1 proguard.cfg，这就是混淆所需的proguard脚本啊。
 
其代码如下：
 
 
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-optimizationpasses 5 
-dontusemixedcaseclassnames 
-dontskipnonpubliclibraryclasses 
-dontpreverify 
-verbose 
-optimizations !code/simplification/arithmetic,!field/*,!class/merging/* 
-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 com.android.vending.licensing.ILicensingService 
-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); 
} 
-keepclassmembers enum * { 
    public static **[] values(); 
    public static ** valueOf(java.lang.String); 
} 
-keep class * implements android.os.Parcelable { 
  public static final android.os.Parcelable$Creator *; 
} 
 
 
从脚本中可以看到，混淆中保留了继承自Activity、Service、Application、BroadcastReceiver、ContentProvider等基本组件。
并保留了所有的Native变量名及类名，所有类中部分以设定了固定参数格式的构造函数，枚举等等。(详细信息请参考<proguard_path>/examples中的例子及注释。)
2 在工程的"default.properties"中添加这样一句话“proguard.config=proguard.cfg”
 
 
打包签名后的.apk就是混淆的，其实我们只要做一步就可以了就是在"default.properties"中添加这样一句话“proguard.config=proguard.cfg”就可以了。

 

出现错误：

1. [INFO] Warning: there were 294 unresolved references to classes or interfaces.
   
2. [INFO]          You may need to specify additional library jars (using '-library
   
3. jars').
   
4. [INFO] Warning: there were 3 unresolved references to program class members.
   
5.       You should consider explicitly keeping the mentioned class members
   
6.       (using '-keep' or '-keepclassmembers').
   
7. [INFO]          Your input classes appear to be inconsistent.
   
8. [INFO]          You may need to recompile them and try again.
   
9. [INFO]          Alternatively, you may have to specify the option
   
10. [INFO]          '-dontskipnonpubliclibraryclassmembers'.
    
11. [INFO] java.io.IOException: Please correct the above warnings first.
    
12. [INFO]  at proguard.Initializer.execute(Initializer.java:321)
    
13. [INFO]  at proguard.ProGuard.initialize(ProGuard.java:211)
    
14. [INFO]  at proguard.ProGuard.execute(ProGuard.java:86)
    
15. [INFO]  at proguard.ProGuard.main(ProGuard.java:492)
16. 解决方法如下：解决方法找到了，在proguard.cfg文件中加入-ignorewarnings就可以跳过这个错误了。