android Studio 混淆打包jar，已经添加其他文件到jar

最近在做相关第三方的SDK，使用的开发工具是android studio 。开发的时候没什么问题，直接使用了新建了library Module，重点来了，产品结束的时候，混淆打包，强调一下，现在项目查看的模式是project模式下，不然找不到文件就发愁了。

最普遍的方法，就是直接修改library中的build.gradle和proguard-rules.pro文件，这两个修改已经是很普通化了。build.gradle中

buildTypes {
release {
minifyEnabled true//只需要把这里改成true就可以
shrinkResources false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}

上边的意思很简单的。就是修改build时候的配置文件。minifyEnabled是混淆的意思，true就是build程序的时候打开混淆。最后一句话就是，混淆的方式，把你要求的混淆东西都写到proguard-rules.pro文件中，比如接口类不能混淆，就要在这个文件中写到，接下来看proguard-rules.pro。

# 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
-keepclassmembers public class com.test.application.test{
#      下面几项是为了测试暴露出来的方法
public void getPublicKey(***);

}
# 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);
}

-keepclassmembers class * implements android.os.Parcelable {
public static final android.os.Parcelable$Creator 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.**

# Understand the @Keep support annotation.
-keep class android.support.annotation.Keep

-keep @android.support.annotation.Keep class * {*;}

-keepclasseswithmembers class * {
@android.support.annotation.Keep <methods>;
}

-keepclasseswithmembers class * {
@android.support.annotation.Keep <fields>;
}

-keepclasseswithmembers class * {
@android.support.annotation.Keep <init>(...);
}

#忽略警告
-ignorewarnings
#保证是独立的jar,没有任何项目引用,如果不写就会认为我们所有的代码是无用的,从而把所有的代码压缩掉,导出一个空的jar
#-dontshrink
#保护泛型
-keepattributes Signature

-keepattributes EnclosingMethod

#下面是项目中不要混淆的代码
-keep class base64.**{*;}

说实话上边的也都是我从别的地方copy过来的。重点看有汉语注释的地方。

-keep class base64.**{*;} 就是把下边包内的所有类都不混淆，这里的-keep就是保留的意思，-keepclassmembers这个保留类里面的方法的意思，剩下的就自己研究吧，反正我是没怎么用到。

这样，跑起来还是没问题的，最后的jar文件在library中build/....文件下可以找到，下边就说说往jar包里添一些东西比如assets内的东西。

第一步和上边的一样，生出jar，第二步就厉害了，要用到task makejar。修改文件 还是build.gradle，首先开头加一个

apply plugin: 'com.android.library'

之后就要写task makejar

task makeJar(type: Jar) {
from zipTree('build/intermediates/bundles/release/classes.jar')
from fileTree(dir: 'src/main', includes: ['assets/**'])
baseName = "Test"
destinationDir = file("build")
}

上边的意思，大致能看懂吧，两个from 就是要把混淆好的jar包和assets下的文件合并 出来的名字是baseName 位置放在build路径下，不过这里可能有些问题，我出来直接在该项目下。

写完上边的的就开始点吧，android studio最右边，一般缩小着的gradle，点开，一般都是项目目录，接着点开你的library项目，应该只有Tasks目录。接着点开，层次应该是 android build help install other verification

咱们用到的 是other，点开 找到makejar，双击，等待，等待，下边不报错就好了。