Gradle multi-project android library support with maven local

I am trying to set up a new project that includes two android library (aar) projects. Name them foo

and bar

.

Since this is all new at the time of writing, I am using Android Studio 1.2.2, Android Build Tools 1.1, Gradle Wrapper 2.2.1.

foo

depends on bar

and for working with Gradle construct I need to specify dependency on sources like this:

dependencies {
    compile project(':bar')
}

      

        
        
        
      

    

I need to publish at least foo

to a local maven repository so that it can be picked up by a separate application project baz

that depends on foo

. baz

is in a completely separate project and Gradle build.

I achieved this by using a plugin maven

and adding the following to foo

build.gradle:

task uploadArchives(type: Upload) {
    repositories.mavenInstaller {
        configuration = configurations.getByName(Dependency.DEFAULT_CONFIGURATION)
        pom.groupId = "com.example"
        pom.artifactId = "foo"
        pom.version = "0.0.2-SNAPSHOT"
    }
}

      

        
        
        
      

    

And including maven dependency in line baz

as usual:

dependencies {
    compile 'com.example:foo:+'
}

      

        
        
        
      

    

Now the problem I am facing is the application baz

crashes at runtime because it lacks dependencies on bar

! (ClassNotFoundException). Checking foo

aar

which is published to maven local, I can see that it has none of the bar

, and is not specified bar

in pom

for foo

.

How do I get Gradle to include relevant dependency information for foo

in pom

from the information above?

I tried to alternatively change the assembly for foo

specifying bar

as a maven dependency:

dependencies {
    compile 'com.example:bar:+'
}

      

        
        
        
      

    

But in this case, the Gradle build for bar

and foo

is failing in the configuration step, because of course, bar

not yet found on maven local (it was not created!) - remember they are both in a multi-project setup.

How does this happen? Are there any pointers to best practices for creating multi-project and android projects projects?

I am also confused about the existence of plugins maven

and maven-publishing

. What is the most appropriate standard for customizing an Android library?

I'm sorry that I included multiple questions in one post. Hopefully when I get some clarity in the right direction that I can edit and make this a more useful question / answer that might help others who are as lost as I am.

Thank!