Android Studio build dex jar

 

Gradle配置

Build配置文件gradle.build中添加如下task

task clearJar(type: Delete) {

    delete 'build/outputs/mylib.jar'

}



task copyJar(type: Copy) {

    from('build/intermediates/bundles/release/')

    into('build/outputs/libs/')

    include('classes.jar')

    rename ('classes.jar', 'mylib.jar')

}



copyJar.dependsOn(clearJar, build)

 

此方法是直接从把gradle build生成的classes.jar拷贝到指定目录并且重命名,必须依赖build task。

修改dex jar的MANIFEST.MF文件

由于目前gradle的”com.android.application/library”不能和”java” plugin同时使用,所以我们可以使用其他方法来修改,本文中使用python的zipfile来处理。

自定义MANIFEST.MF文件

文件内容如下:

Manifest-Version: 1.0

Gradle-Version: 2.2.1

Created-By: 1.8.0_20-b26 (Oracle Corporation)

Date: 2015-4-15

Author: Leo.Kang

jar-version: 1.0.0

  

 

Python脚本

例如:新建一个python脚本,命名为updateJarManifest.py

#!/usr/bin/python



import sys,zipfile,shutil,os



def generate():

       jar_file = "./mylib_temp.jar"

       target_jar = os.path.dirname(jar_file)+"/mylib.jar"

       shutil.copy(jar_file, target_jar)

       zipped = zipfile.ZipFile(target_jar, 'a', zipfile.ZIP_DEFLATED)

       content_file = "META-INF/MANIFEST.MF"



       mf_file = "./MANIFEST.MF"

       zipped.write(mf_file, content_file)

       zipped.close()

       return target_jar



generate()

 

执行python的shell脚本(mac/linux)/批处理文件(win)

win

新建一个文件命名updateJar.bat文件内容为python updateJarManifest.py

mac/linux

新建一个文件命名为:updateJar.sh,

文件内容为:

#!/bin/bash

#@author Leo.Kang

# 2015-4-15 20:47



python ./ updateJarManifest.py

  

更新build.gradle 配置

task clearJar(type: Delete) {

    delete 'build/outputs/mylib.jar'

}



 



task copyJar(type: Copy) {

    from('build/intermediates/bundles/release/')

    into('build/outputs/libs/')

    include('classes.jar')

    rename ('classes.jar', 'mylib_temp.jar')

}



copyJar.dependsOn(clearJar, build)



releaseJar.dependsOn(clearJar, build)



task execPython(type:Exec) {

    //workingDir file('./')

    commandLine './updateJar.sh'

}



execPython.dependsOn(releaseJar)

 

Reference

http://gradle.org/docs/current/dsl/org.gradle.api.tasks.Exec.html

 

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