sbt 10.x multiple android project example definition

AndroidBuild.scala

import sbt._

import Keys._
import AndroidKeys._

// General object adds all modular android settings appropriately
object General {
  val settings = Defaults.defaultSettings ++ Seq (
    version := "0.1.0",
    organization := "my.android.project"
  )

  val androidSettings = 
    settings ++  
    Seq (
      platformName in Android := "android-10"
    )   
  
  val androidProjectSettings = 
    androidSettings ++  
    AndroidProject.androidSettings

  val androidFullProjectSettings =
    androidProjectSettings ++
    TypedResources.settings ++
    AndroidMarketPublish.settings
}

// Here begins the actual build configuration
object AndroidBuild extends Build {

  // Root project and can list, start, and stop emulators
  // (along with any other project), but can run compile
  // to compile all projects
  lazy val root = Project (
    "root",
    file("."),
    settings = General.settings
  ) aggregate (app, tests)

  // MainProject
  lazy val app = Project (
    "app",
    file("app"),
    settings = General.androidFullProjectSettings ++ Seq (
      keyalias in Android := "change-me",
      libraryDependencies += "org.scalatest" % "scalatest" % "1.3"
    )
  ) dependsOn myAndroidLib

  // AndroidLibraryProject
  lazy val myAndroidLib = Project (
    "library",
    file("library"),
    settings = General.androidSettings ++ AndroidBase.settings
  )

  // AndroidTestProject
  lazy val tests = Project (
    "tests",
    file("tests"),
    settings = General.androidProjectSettings ++ Seq (
      proguardInJars in Android := List[File]()
    )
  )
}