android - How to add .aar dependency in library module?

Question

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.

Answer 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'