How to add .aar dependency in library module?

问题:

I am having one .aar file of one library module.
I want to use it as a library or dependency in my other project's library module.
How do I do it?

I tried options provided at below links:
http://kevinpelgrims.com/blog/2014/05/18/reference-a-local-aar-in-your-android-project/

It works only if I add .aar reference in my project's application module. But not working in library module.

Thanks.

回答1:

Follow this setting and you will able to add .aar dependency to library module

build.gradle (Project: ....)

allprojects {
    repositories {
        jcenter()
        mavenCentral()
        flatDir {
            dirs 'libs'
            dirs project(':library_module').file('libs')
        }
    }
}

build.gradle (Module: app)

dependencies {
    ...
    compile project(':library_module')
}

build.gradle (Module: library_module)

dependencies {
    ...
    compile(name:'aar_file_name', ext:'aar')
}

settings.gradle (Project Settings)

include ':app', ':library_module'

回答2:

In all modules (library or application) where you need the aar file you have to add in your build.gradle the repository:

repositories {
    flatDir {
        dirs 'libs'
    }
}

and add the dependency:

dependencies {
   compile(name:'nameOfYourAARFileWithoutExtension', ext:'aar')
 }

You can use the top-level file to add the repositories, but you can't add the dependencies in the top-level file.
Pay attention to the relative path of the libs folder that you are using in the module.

回答3:

1. File -> New Module -> Import .JAR/.AAR
2. import the .AAR file.
3. in library module build.gradle add the dependency dependencies{compile project(':Name-Of-Your-Module-aar')}

http://tools.android.com/tech-docs/new-build-system/tips#TOC-Handling-transitive-dependencies-for-local-artifacts-jars-and-aar-