This plugin adds support for writing Android applications using the Groovy language.
Edit your build.gradle
file with the following:
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:0.13.2'
classpath 'org.codehaus.groovy:gradle-groovy-android-plugin:0.3.5'
}
}
apply plugin: 'groovyx.grooid.groovy-android'
Then you must choose which version and modules of Groovy you use. So far, Android support is available in
the 2.4.0-rc-2 release and beyond, so you need to add the following repository to your build.gradle
file:
repository {
jcenter() // or mavenCentral()
}
Then you can start using Groovy by adding a dependency on the grooid
classifier:
dependencies {
compile 'org.codehaus.groovy:groovy:2.4.0-rc-2:grooid'
}
then use the assembleDebug
task to test.
Should you want to test development versions of the plugin, you can add the snapshot repository and depend on a SNAPSHOT:
buildscript {
repositories {
jcenter()
maven {
url = 'http://oss.jfrog.org/artifactory/oss-snapshot-local'
}
}
dependencies {
classpath 'com.android.tools.build:gradle:0.14.0'
classpath 'org.codehaus.groovy:gradle-groovy-android-plugin:0.3.5'
}
}
Groovy sources must be found inside src/main/groovy
. Note that the plugin follows the behavior of the Groovy plugin
in Gradle, which means that if you want to be able to have Groovy classes referencing Java classes that themselves reference
Groovy classes, then those Java classes must be found inside src/main/groovy
too (this is called joint compilation).
This plugin has been successfully tested with Android Studio. It will let you write an application in Groovy. It is
recommended, for performance, memory and battery life, that you use @CompileStatic
wherever possible.
Details can be found on my blog and here for more technical details
The default language level for both source and target is 1.6
. You can change it by giving some options. Following example changes it to 1.7
. Note that you have to change Android Studio project settings as well if you use the IDE.
project.androidGroovy {
options {
sourceCompatibility = '1.7'
targetCompatibility = '1.7'
}
}
Similarily, the Groovy compilation tasks can be configured in the androidGroovy
block using the options
block:
project.androidGroovy {
options {
configure(groovyOptions) {
encoding = 'UTF-8'
forkOptions.jvmArgs = ['-noverify'] // maybe necessary if you use Google Play Services
}
sourceCompatibility = '1.7'
targetCompatibility = '1.7'
}
}