自古英雄不问出处，奈何我却不是英雄！

转载请标明出处：http://blog.csdn.net/u011275767/article/details/46471935

由于adt的更新和IDE的变化代码混淆的配置文件也发生了变化，下面给大家说一下主要发生了什么变化。希望能帮到大家

Eclipse中老版本的ADT里面是proguard.cfg，然后在defult.properties加入proguard.config=proguard.cfg。defult.properties文件是这样的

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This file is automatically generated by Android Tools.

Do not modify this file -- YOUR CHANGES WILL BE ERASED!

This file must be checked in Version Control Systems.

To customize properties used by the Ant build system use,

"build.properties", and override values to adapt the script to your

project structure.

Project target.

target=android-19
proguard.config=proguard.cfg

新版ADT没有了proguard.cfg而是换成了project.properties和proguard-project.txt。其实没啥区别在project.properties加入proguard.config=proguard-project.txt。就可以了。proguard-project.txt文件是这样的。
这里要知道一个地方proguard.cfg是可以直接拿过来当proguard-project.txt用的。

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This file is automatically generated by Android Tools.

Do not modify this file -- YOUR CHANGES WILL BE ERASED!

This file must be checked in Version Control Systems.

To customize properties used by the Ant build system edit

"ant.properties", and override values to adapt the script to your

project structure.

To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home):

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

Project target.

target=android-19
proguard.config=proguard-project.txt

新版ADT没下面说一下android studio的使用，到了android studio中又有了不同这回没有了proguard-project.txt变成了proguard-rules.txt其实就是名字变了而已。用法一样。不同的是studio中没有了eclipse里面的project.properties或者defult.properties。而是换成了build.gradle。build.gradle中有这么一段。只要把minifyEnabled
后面的false改为true就会执行混淆代码了。

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buildTypes {
release {
// minifyEnabled为true会执行proguard-rules.txt混淆代码
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
}
}

到此配置文件的不同就介绍完毕了