使用android studio創建jar包工程，並導出jar

1、打開android studio選擇File->New->New Module...

選擇Android Library，創建一個Android Library的jar包工程

 

 

 

2、打開工程中的build.gradle

在文件末尾添加如下腳本

task deleteOldJar(type:Delete) {
delete 'build/libs/APPTest.jar'
}

task exportJar(type:Copy) {
from('build/intermediates/bundles/default/')
into('build/libs')
include('classes.jar')
rename('classes.jar','APPTest.jar')
}

exportJar.dependsOn(deleteOldJar,build)
APPTest.jar為要生成的jar文件名，生成的jar路徑在工程中的build/libs目錄下

完整文件如下：

apply plugin: 'com.android.library'

android {
compileSdkVersion 22
buildToolsVersion "25.0.3"

defaultConfig {
minSdkVersion 19
targetSdkVersion 22
versionCode 1
versionName "1.0"

testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:22.2.1'
testCompile 'junit:junit:4.12'
}
task deleteOldJar(type:Delete) {
delete 'build/libs/APPTest.jar'
}

task exportJar(type:Copy) {
from('build/intermediates/bundles/default/')
into('build/libs')
include('classes.jar')
rename('classes.jar','APPTest.jar')
}

exportJar.dependsOn(deleteOldJar,build)
3、在Android Studio中選擇Gradle projects->APPTest工程->Tasks->other->exportJar，雙擊exportJar生成jar包。

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原文鏈接：https://blog.csdn.net/croop520/article/details/79930803