Android aar 库不包含依赖项 [英] Android aar library doesn't contain dependencies

问题描述

我看到了类似的问题，但没有找到公认的答案.问题 - 我有自己的带有一些小功能的 android 库.我的图书馆使用其他人 - f.e.Hawk(没有 sql 数据库).我的图书馆 gradle 文件:

i saw similar questions, but not found accepted answers. Problem - i have my own android library with some tiny functions. My library uses others - f.e. Hawk (no sql database). My library gradle file:

apply plugin: 'com.android.library'
buildscript {
    repositories {
        maven { url "https://www.jitpack.io" }
    }
}
android {
    compileSdkVersion 26
    buildToolsVersion "26.0.1"

    defaultConfig {
        minSdkVersion 18
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

    }
    buildTypes {
        release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'library.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-v7:26.0.2'
    compile 'com.github.orhanobut:hawk:1.23'
    testCompile 'junit:junit:4.12'
}

库工作正常.如果我将它用作另一个项目中的项目 - 它也可以工作.但是当我生成 *.aar 文件(使用 gradle -> assembleRelease)并包含到单独的项目中时 - 它失败了.项目仅查看我的图书馆的课程.Hawk com.orhanobut.hawk 包和其他一些(如果我会使用的话)是不可见的.于是 ClassNotFoundException 来了.如果我删除

Library works fine. And if i use it as project inside another project - it work too. But when i generate *.aar file (with gradle -> assembleRelease) and include into separate project - it fails. Project see ONLY MY library's class. Hawk com.orhanobut.hawk package and ofc others (if i will use then) are not visible. So ClassNotFoundException comes. If i remove

minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'library.pro'

结果没有改变.我尝试将以下行添加到 proguard 文件 (library.pro)

the result doesnt change. I tried to add the following line into proguard file (library.pro)

-keep class com.orhanobut.hawk {public *;}
-keep class com.orhanobut.hawk.* {public *;}

结果是一样的.

所以我有两个问题:1 - 我应该怎么做才能让我的主项目看到我的库的第三方依赖项?2 - 是否可以混淆我的库代码(只有我的，不是依赖项)?

So i have two question: 1 - what should i do to make my main project see my library's third party dependencies? 2 - is is possible to obfuscate my library's code (only mine, not dependencies)?

推荐答案

我应该怎么做才能让我的主项目看到我的库的第三方依赖项?

what should i do to make my main project see my library's third party dependencies?

aar 文件不包含 transitive 依赖项，并且没有描述模块使用的依赖项的 pom 文件.

The aar file doesn't contain the transitive dependencies and doesn't have a pom file which describes the dependencies used by the module.

这意味着，如果您使用 flatDir 存储库导入 aar 文件您还必须在项目中指定依赖项.

It means that, if you are importing a aar file using a flatDir repository you have to specify the dependencies also in your project.

您应该使用 ma​​ven 存储库，无论是私有的还是公共的，以避免出现此问题.
在这种情况下，gradle 使用包含依赖项列表的 pom 文件下载依赖项.

You should use a maven repository, private or public, to avoid the issue.
In this case, gradle downloads the dependencies using the pom file which will contains the dependencies list.

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