Android程序增加代码混淆器
增加代码混淆器。主要是增加proguard-project.txt文件的规则进行混淆,之前新建Android程序是proguard.cfg文件
能够看一下我採用的通用规则(proguard-project.txt文件)
-optimizationpasses 5 -dontusemixedcaseclassnames -dontskipnonpubliclibraryclasses -dontskipnonpubliclibraryclassmembers -dontpreverify -verbose -optimizations !code/simplification/arithmetic,!field/*,!class/merging/* -keepattributes *Annotation* -renamesourcefileattribute SourceFile -keepattributes SourceFile,LineNumberTable # 下面两个命令配合让类的路径给删除了 -allowaccessmodification -repackageclasses ” # 记录生成的日志数据,在 proguard 文件夹下 -dump class_files.txt -printseeds seeds.txt -printusage unused.txt -printmapping mapping.txt # 异常都能够忽略就打开 #-dontwarn -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 com.android.vending.licensing.ILicensingService -dontnote com.android.vending.licensing.ILicensingService -keepnames class * implements java.io.Serializable # Explicitly preserve all serialization members. The Serializable interface # is only a marker interface, so it wouldn’t save them. -keepclassmembers class * implements java.io.Serializable { static final long serialVersionUID; private 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 (); } # Preserve all native method names and the names of their classes. #-keepclasseswithmembernames class * { # native ; #} #-keepclasseswithmembernames class * { # public (android.content.Context, android.util.AttributeSet); #} #-keepclasseswithmembernames class * { # public (android.content.Context, android.util.AttributeSet, int); #} # Preserve static fields of inner classes of R classes that might be accessed # through introspection. #-keepclassmembers class **.R$* { # public static ; #} # Preserve the special static methods that are required in all enumeration classes. -keepclassmembers enum * { public static **[] values (); public static ** valueOf (java.lang.String); } -keep class * implements android.os.Parcelable { public static final android.os.Parcelable$Creator *; } # 假设你的project是对外提供方法调用就打开 #-keep public class * { # public protected *; #}
假设还有规则就加在后面
另外,我们一般须要混淆的是自己写的代码,引入的第三方库文件是不须要混淆的,否则会出现例如以下错误:
就是找不到所须要的类。
所以第三方库须要指出来不混淆,方法例如以下:
上面是android.support.v4.×找不到所需类,查看引入库的包名
在proguard-project.txt后面加上
-dontwarn android.support.v4.** -keep class android.support.v4.** { *; }
第一句是忽略这个警告。第二句是保持类不混淆
把你全部引入的第三方库弄完后,在project.properties文件中加上一句
proguard.config=proguard-project.txt
就能够编译了(怎么编译?)
编译后。能够在bin里看到混淆代码的apk文件,是不是文件变小了,多爽!
同一时候。在bin/proguard目录里多了几个文件
当中,mapping.txt就是全部混淆的类及变量名的前后參照,usage.txt是你在代码中没用到的方法,都给你列出来了,是优化后的结果。