Gradle: add dependency for a specific flavour of the library

Question

I have a library project and a application. I'd like to have 2 product flavours (store, dev) for both library and application. When I build the store flavour for the application I want to use the store flavour from the library. Also when I build the dev flavour for the application I want to use the dev flavour from the library. I tried setting the same product flavours for both library and application but it does not work.

Here is my configuration:

Library

apply plugin: 'android-library'  android {     compileSdkVersion 19     buildToolsVersion "19.1.0"      defaultConfig {         applicationId "ro.amarkovits.graddletest.lib"         minSdkVersion 14         targetSdkVersion 19         versionCode 1         versionName "1.0"     }     buildTypes {         release {             runProguard false             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'         }     }     productFlavors{         store{          }         dev{          }     }  }  dependencies {     compile fileTree(dir: 'libs', include: ['*.jar']) } 

and I have this files: src/main/res/values/strings.xml and src/store/res/values/strings.xml

Application

apply plugin: 'android'  android {     compileSdkVersion 19     buildToolsVersion '19.1.0'     defaultConfig {         applicationId 'ro.amarkovits.mymodule.app'         minSdkVersion 14         targetSdkVersion 19         versionCode 1         versionName '1.0'     }     buildTypes {         release {             runProguard false             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'         }     }     productFlavors{         store{          }         dev{          }     } }  dependencies {     compile fileTree(dir: 'libs', include: ['*.jar'])     compile project(':lib') } 

In this situation I get this error: Error:(12, 23) No resource found that matches the given name (at 'text' with value '@string/app_name'). The app_name is defined in string.xml in the library (in both main and store directory)

If I remove the productFlavors from the library it builds but always use the values.xml from the main directory

Answer 1

In your library you need to tell gradle to build every time every variant:

android {     publishNonDefault true } 

Then in your application, since recently I guess, you can do this:

dependencies {     (...)     devCompile project(path: ':lib', configuration: 'devDebug') // or 'devRelease'     storeCompile project(path: ':lib', configuration: 'storeRelease') // or 'storeDebug' } 

Found in the official documentation under Library Publication.

Edit:

Since version 0.14.3 (2014/11/18), you can now have Flavor-buildType-Compile directive as well:

In your build.gradle before the android {} scope add the following:

configurations {     devDebugCompile     devReleaseCompile     storeDebugCompile     storeReleaseCompile } 

Then you can declare and use different versions of your library per Flavor-BuildType:

dependencies {     (...)     devDebugCompile project(path: ':lib', configuration: 'devDebug')     devReleaseCompile project(path: ':lib', configuration: 'devRelease')     storeDebugCompile project(path: ':lib', configuration: 'storeDebug')     storeReleaseCompile project(path: ':lib', configuration: 'storeRelease')  } 

Edit:

Dependency management between modules has changed since Android Gradle Plugin 3.0.0. It automatically tries to matches flavours between your app and the libraries/modules it depends on.

See the documentation for the whole explanation!