Android Plugin for Gradle Release Notes

android {
  ...
  signingConfigs {
    config {
      ...
      v2SigningEnabled false
    }
  }
}

• Jack now supports Jacoco test coverage when setting testCoverageEnabled to true.
• Improved support for annotation processors. Annotation processors on your classpath, such as any compile dependencies, are automatically applied to your build. You can also specify an annotation processor in your build and pass arguments by using the javaCompileOptions.annotationProcessorOptions {} DSL in your module-level build.gradle file:

  android {
    ...
    defaultConfig {
      ...
      javaCompileOptions {
        annotationProcessorOptions {
          className 'com.example.MyProcessor'
  
          // Arguments are optional.
          arguments = [ foo : 'bar' ]
        }
      }
    }
  }
  

  If you want to apply an annotation processor at compile time but not include it in your APK, use the annotationProcessor dependency scope:

  dependencies {
      compile 'com.google.dagger:dagger:2.0'
      annotationProcessor 'com.google.dagger:dagger-compiler:2.0'
     // or use buildVariantAnnotationProcessor to target a specific build variant
  }
  

• You can set additional flags for Jack using jackOptions.additionalParameters(). The following code snippet sets the jack.incremental parameter to true:

  android {
    defaultConfig {
      ...
      jackOptions {
        enabled true
        additionalParameters("jack.incremental" : true)
      }
    }
    ...
  }
  

  For a list of parameters you can set, run the following from the command line:

  java -jar /build-tools/jack.jar --help-properties
  

• By default, if the Gradle daemon's heap size is at least 1.5 GB, Jack now runs in the same process as Gradle. To adjust the daemon heap size, add the following to your gradle.properties file:

  # This sets the daemon heap size to 1.5GB.
  org.gradle.jvmargs=-Xmx1536M
  

Note: Instant Run does not currently work with Jack and will be disabled while using the new toolchain. You only need to use Jack if you are developing for the N Preview and want to use the supported Java 8 language features.

android {
  ...
  compileOptions {
    incremental false
  }
}

Added support for dexing-in-process which performs dexing within the build process rather than in a separate, external VM processes. This not only makes incremental builds faster, but also speeds up full builds. The feature is enabled by default for projects that have set the Gradle daemon's maximum heap size to at least 2048 MB. You can do this by including the following in your project's gradle.properties file:

org.gradle.jvmargs = -Xmx2048m

If you have defined a value for javaMaxHeapSize in your module-level build.gradle file, you need to set org.gradle.jvmargs to the value of javaMaxHeapSize + 1024 MB. For example, if you have set javaMaxHeapSize to "2048m", you need to add the following to your project's gradle.properties file:

org.gradle.jvmargs = -Xmx3072m

To disable dexing-in-process, add the following code to your module-level build.gradle file:

android {
  ...
  dexOptions {
      dexInProcess false
  }
}

android {
  ...
  dexOptions {
  maxProcessCount = 4 // this is the default value
  }
}

android {
  ...
  buildTypes {
    debug {
      minifyEnabled true
      useProguard false
    }
    release {
      minifyEnabled true
      useProguard true // this is a default setting
    }
  }
}

Note: The Android keystore provider no longer supports DSA keys on Android 6.0 (API level 23) and higher.

-Pcom.android.build.threadPoolSize=4

android {
      packagingOptions.excludes = []
    }

• test
• testFlavor1
• testFlavorA
• testFlavor1FlavorA
• testFlavor1FlavorADebug

Android tests already recognized multi-flavor source folders.

• Run javac on main and test sources, even if the useJack property is set to true in your build file.
• Correctly recognize dependencies for each build type.

./gradlew connectedCheck \
   -Pandroid.testInstrumentationRunnerArguments.size=medium \
   -Pandroid.testInstrumentationRunnerArguments.class=TestA,TestB

android {
    aaptOptions {
      additionalParameters "--custom_option", "value"
    }
}

Note: A test APK module does not support product flavors and can only target a single variant. Also, Jacoco is not supported yet.

Note: This version of the Android plugin for Gradle is not compatible with Gradle 2.4 and higher.

Note: This version of the Android plugin for Gradle is not compatible with Gradle 2.4 and higher.