build.gradle

// This is the main build configuration
// It lives in: compiled-libraries/
buildscript {
    repositories {
        mavenCentral()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:0.5.+'
    }
}

apply plugin: 'maven'

repositories {
    mavenCentral()
}

sourceCompatibility = "1.6"
targetCompatibility = "1.6"

configurations {
    archives {
        extendsFrom configurations.default
    }
}

library-build.gradle

// This is the library build configuration. It lives in: compiled-libraries/MyLib
// Note: it should  be called 'build-gradle', not 'library-build.gradle', this is only for Github
apply plugin: 'android-library'
apply plugin: 'maven'

group = 'com.rileybrewer.mylib'
version = '1.0.0'

uploadArchives {
    configuration = configurations.archives
    repositories {
        mavenDeployer {
            // I chose to put my repo in the project's root
            repository(url: uri("../../localrepo"))
            pom.project {
                artifactId 'mylib'
                name 'My Library'
                packaging 'aar'
            }
        }
    }
}

// Keep your library's original build configuration
// i.e. this isn't necessarily going to apply to you
dependencies {
    compile 'com.android.support:support-v4:18.0.+'
}

android {
    compileSdkVersion 18
    buildToolsVersion "18.0.1"

      sourceSets {
        main {
          manifest.srcFile 'AndroidManifest.xml'
          java.srcDirs = ['src']
          res.srcDirs = ['res']
        }
      }
}