How do I share dependencies between Android modules

Question

I have an Android application module (app) and an Android library module (library). Both app and library contain these same dependencies:

dependencies {
             


        

Answer 1

The dependencies block(closure) needs DependencyHandler as delegate

You need to pass DependencyHandler of each project to shared dependencies in project gradle.build.

project build.gradle

ext.sharedGroup = {dependencyHandler->
    delegate = dependencyHandler

    compile 'com.squareup.okhttp:okhttp:2.4.0'
    compile 'com.squareup.retrofit:retrofit:1.9.0'
    compile 'io.reactivex:rxjava:1.0.13'
    compile 'io.reactivex:rxandroid:0.25.0'
}

app build.gradle

dependencies {
    sharedGroup dependencies
}

ref. https://github.com/b1uec0in/DependencyVersionResolver

(see 2. Using default dependency group. This sample explains many other tips for sharing library version, sdk versions ... for large project that have many modules.)