Android studio add external project to build.gradle

Question

I have a sample project, with the following setup:

/root
  + Pure Java Lib
  + Android Test Lib
  + Android Test Project

Where the \'Te

Answer 1

With Gradle 1.10 (don't know what other versions this will be valid for) this is what I came up with based on a response given here http://forums.gradle.org/gradle/topics/reference_external_project_as_dependancy

I have an api library project, a common library project and the main app project. Each is a stand-alone development project and the two libraries are meant to be shared between multiple apps.

In settings.gradle for the common project:

def apiLibDir = file('../android-api/android-api-lib')
def rootProjectDescriptor = settings.rootProject
settings.createProjectDescriptor(rootProjectDescriptor, 'android-api-lib', apiLibDir)
include ':android-api-lib'

Then in the main app project settings.gradle:

def apiLibDir = file('../android-libs/android-api/android-api-lib')
def rootProjectDescriptor = settings.rootProject
settings.createProjectDescriptor(rootProjectDescriptor, 'android-api-lib', apiLibDir)
include ':android-api-lib'

def commonLibDir = file('../android-libs/android-common/android-common-lib')
settings.createProjectDescriptor(rootProjectDescriptor, 'android-common-lib', commonLibDir)
include ':android-common-lib'

In each of the respective build.gradle files you just reference them by the name you gave them in the settings.createProjectDescriptor like you would any other project dependancy:

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile project(':android-api-lib')
    compile project(':android-common-lib')
}

This seems to work. It didn't even throw an error for multiple DEX files defining the api library, I suspect because it was all part of the same build process and Gradle was smart enough to figure it all out.