Android库:使用Proguard时，释放.aar将classes.jar清空 [英] Android Library: Release .aar getting classes.jar empty when using proguard

问题描述

我正在尝试使用 minifyEnabled true 生成一个库，但是，在版本.aar中，classes.jar变空了.

I'm trying to generate a library with minifyEnabled true but, inside the release .aar, classes.jar is getting empty.

我已经检查了我的 proguard-rules.pro ，看来还可以.

I have checked my proguard-rules.pro and it seems to be all right.

我什至用默认的.gradle文件创建了一个新模块，当我将 minifyEnable设置为true 时，发行版仍会获取没有类的class.jar.

I've even created a new module with the default .gradle files and when i set minifyEnable true the release version still gets the classes.jar with no class inside.

毕竟，是否可以生成一个使代码模糊的android库?

After all, is it possible to generate an android library obfuscating the code?

添加模块build.gradle

EDIT 1: Adding module build.gradle

apply plugin: 'com.android.library'

android {
    compileSdkVersion 27
    buildToolsVersion '27.0.0'

    defaultConfig {
        minSdkVersion 15
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"

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

    }

    buildTypes {
        release {
                minifyEnabled true
                proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            }
    }

    lintOptions {
        abortOnError false
    }
}

repositories {
    maven { url 'https://maven.google.com' }
    jcenter()
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:3.0.1', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })

    compile 'org.apache.httpcomponents:httpcore:4.3.3'
    compile('org.apache.httpcomponents:httpmime:4.3.6') {
        exclude module: 'httpclient'
    }

    compile 'fr.bmartel:jspeedtest:1.25'
    compile "com.android.support:appcompat-v7:27.0.0"
    testCompile 'junit:junit:4.12'
}

推荐答案

好的，一段时间后，我解决了问题.

Ok, after some time I solved my problem.

我将默认的Proguard规则配置(library.pro)复制/粘贴到我的 proguard-rules.pro 中.您可以在您的sdk路径/tools/proguard/examples 中找到此文件和更多示例.

I copy/paste a default proguard rules configuration (library.pro) to my proguard-rules.pro. You can find this file and more examples in path-to-your-sdk/tools/proguard/examples.

有关更多信息，请阅读此.

For more information, read this.

在我的 build.gradle 中，我改变了:

defaultConfig {
    minSdkVersion 15
    targetSdkVersion 27
    versionCode 1
    versionName "1.0"

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

}

buildTypes {
    release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
}

收件人:

defaultConfig {
    minSdkVersion 14
    targetSdkVersion 27
    versionCode 1
    versionName "1.0"

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

}

buildTypes {
     release {
         minifyEnabled true
         proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         consumerProguardFiles 'proguard-rules.pro' //added this line
     }
 }

感谢您的帮助！

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