Android Studio build dex jar

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Gradle配置

Build設定檔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)

 

此方法是直接從把gradle build產生的classes.jar拷貝到指定目錄並且重新命名，必須依賴build task。

修改dex jar的MANIFEST.MF檔案

由於目前gradle的”com.android.application/library”不能和”java” plugin同時使用,所以我們可以使用其他方法來修改，本文中使用python的zipfile來處理。

自訂MANIFEST.MF檔案

檔案內容如下：

Manifest-Version: 1.0Gradle-Version: 2.2.1Created-By: 1.8.0_20-b26 (Oracle Corporation)Date: 2015-4-15Author: Leo.Kangjar-version: 1.0.0

　　

 

Python指令碼

例如：建立一個python指令碼，命名為updateJarManifest.py

#!/usr/bin/pythonimport sys,zipfile,shutil,osdef 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_jargenerate()

 

執行python的shell指令碼（mac/linux）/批次檔（win）win

建立一個檔案命名updateJar.bat檔案內容為python updateJarManifest.py

mac/linux

建立一個檔案命名為：updateJar.sh,

檔案內容為：

#!/bin/bash#@author Leo.Kang# 2015-4-15 20:47python ./ 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

 

Android Studio build dex jar