How to list all flavors in buildConfig via gradle in Android

Question

This is a simple gradle with three flavors :

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.2"

    defaultConfig {
        applicationId "com.apipas.app.listallflavor"
        minSdkVersion 14
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    productFlavors {

        au {
            applicationId 'com.apipas.app.listallflavor.au'
            resConfigs 'en-rAU'
        }
        es {
            applicationId 'com.apipas.app.listallflavor.es'
            resConfigs 'es'
        }

        de {
            applicationId 'com.apipas.app.listallflavor.de'
            resConfigs 'de'
        }

    }
    productFlavors.all {
        flavor ->
            println( flavor.name)
            buildConfigField 'String', 'var_'+flavor.name, '\"'+flavor.name+'\"'
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.1.1'
}

BuildConfig.java is:

/**
 * Automatically generated file. DO NOT MODIFY
 */
package com.apipas.app.listallflavor;

public final class BuildConfig {
  public static final boolean DEBUG = Boolean.parseBoolean("true");
  public static final String APPLICATION_ID = "com.apipas.app.listallflavor.au";
  public static final String BUILD_TYPE = "debug";
  public static final String FLAVOR = "au";
  public static final int VERSION_CODE = 1;
  public static final String VERSION_NAME = "1.0";
  // Fields from product flavor: au
  public static final String var_au = "au";
}

What I expected :

/**
 * Automatically generated file. DO NOT MODIFY
 */
package com.apipas.app.listallflavor;

public final class BuildConfig {
  public static final boolean DEBUG = Boolean.parseBoolean("true");
  public static final String APPLICATION_ID = "com.apipas.app.listallflavor.au";
  public static final String BUILD_TYPE = "debug";
  public static final String FLAVOR = "au";
  public static final int VERSION_CODE = 1;
  public static final String VERSION_NAME = "1.0";
  // Fields from product flavor: au
  public static final String var_au = "au";
  public static final String var_de = "de";
  public static final String var_es = "es";
}

Weird thing that I can see all flavors in logs: au de es

but I don't have fields in buildConfig for 'de' and 'es' as I expected .. any hint, guys ?

Answer 1

  productFlavors.all {
        flavor ->
            defaultConfig.buildConfigField 'String', 'var_'+flavor.name, '\"'+flavor.name+'\"'
    }