签名
路径/文件名+.jks 签名文件通过
build generate signed apk
记住签名库的密码
和key 的密码
代码混淆
混淆代码 可以 减小APK体积,将类名简单化,在反编译时打乱代码的阅读理解。
所以release 版本的apk 通常进行代码混淆
通过Gradle 进行 配置
buildTypes 声明构建类型
1.release
2.debug
3.可以自定义类型
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
将minifyEnabled 更改为Ture
更改proguard-rules.pro混淆文件自己配置:
#-------------------------------------------定制化区域----------------------------------------------
#---------------------------------1.实体类---------------------------------
#-------------------------------------------------------------------------
#---------------------------------2.第三方包-------------------------------
#-------------------------------------------------------------------------
#---------------------------------3.与js互相调用的类------------------------
#-------------------------------------------------------------------------
#---------------------------------4.反射相关的类和方法-----------------------
#----------------------------------------------------------------------------
#---------------------------------------------------------------------------------------------------
#-------------------------------------------基本不用动区域--------------------------------------------
#---------------------------------基本指令区----------------------------------
-optimizationpasses 5
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-dontskipnonpubliclibraryclassmembers
-dontpreverify
-verbose
-printmapping proguardMapping.txt
-optimizations !code/simplification/cast,!field/*,!class/merging/*
-keepattributes *Annotation*,InnerClasses
-keepattributes Signature
-keepattributes SourceFile,LineNumberTable
#----------------------------------------------------------------------------
#---------------------------------默认保留区---------------------------------
-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.view.View
-keep public class com.android.vending.licensing.ILicensingService
-keep class android.support.** {*;}
-keepclasseswithmembernames class * {
native <methods>;
}
-keepclassmembers class * extends android.app.Activity{
public void *(android.view.View);
}
-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}
-keep public class * extends android.view.View{
*** get*();
void set*(***);
public <init>(android.content.Context);
public <init>(android.content.Context, android.util.AttributeSet);
public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet);
public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keep class * implements android.os.Parcelable {
public static final android.os.Parcelable$Creator *;
}
-keepclassmembers class * implements java.io.Serializable {
static final long serialVersionUID;
private static final java.io.ObjectStreamField[] serialPersistentFields;
private void writeObject(java.io.ObjectOutputStream);
private void readObject(java.io.ObjectInputStream);
java.lang.Object writeReplace();
java.lang.Object readResolve();
}
-keep class **.R$* {
*;
}
-keepclassmembers class * {
void *(**On*Event);
}
#----------------------------------------------------------------------------
#---------------------------------webview------------------------------------
-keepclassmembers class fqcn.of.javascript.interface.for.Webview {
public *;
}
-keepclassmembers class * extends android.webkit.WebViewClient {
public void *(android.webkit.WebView, java.lang.String, android.graphics.Bitmap);
public boolean *(android.webkit.WebView, java.lang.String);
}
-keepclassmembers class * extends android.webkit.WebViewClient {
public void *(android.webkit.WebView, jav.lang.String);
}
#----------------------------------------------------------------------------
#---------------------------------------------------------------------------------------------------
混淆的过程分为 shrink->optinize->obfuscate->preverify
这些环节是可以选择的。
#代表注释
-keep 是保持某个类不被混淆。
assemble Task 任务 有两个子任务 debug/release
所以混淆前需要对文件进行签名
反编译APK
验证文件是否混淆成功
需要两个软件
dex2jar 将 dex—>jar
jd-gui 将jar->java
反编译软件 APKTool 可以将APK 反编译成可以修改的smali 文件
http://blog.youkuaiyun.com/kong92917/article/details/53468913
ubuntu 下将 脚本文件 和工具包 等配置环境变量