Use different build types of Library Module in Android App Module in Android Studio and Gradle

Question

I have a workspace containing several different apps and a common library project that I am looking to convert from Eclipse to Android Studio and from Ant to Gradle. Curren

Answer 1

Update: publishNonDefault is deprecated and has no effect anymore. All variants are now published.

Documentation taken from Library Publication chapter in Gradle Plugin User Guide.

By default a library only publishes its release variant. This variant will be used by all projects referencing the library, no matter which variant they build themselves. This is a temporary limitation due to Gradle limitations that we are working towards removing.

Anyway, there are solutions for this problem.

Publish All - It is possible to publish all build variants of your library project by adding following line to your library project:

android {
    publishNonDefault true
}

Then you should modify your dependencies in app project as follows:

dependencies {
    releaseCompile project(path: ':yourLibrary', configuration: 'release')
    debugCompile project(path: ':yourLibrary', configuration: 'debug')

    // This is also possible
    customCompile project(path: ':yourLibrary', configuration: 'custom')
}

Change Default - You can change which varaint gets published from your library by adding following line to your library project:

android {
    defaultPublishConfig "debug"
}

And in this case you don't have to change app's dependencies because it will always get debug build variant.