build.gradle

buildscript {
    repositories {
    google()
    maven {
            url "https://maven.google.com"
        }
    jcenter { url "http://jcenter.bintray.com/" }
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.0'
    }
}

task buildPythonDebug << {
    exec {
        commandLine "voc -v -p app -o build/intermediates/classes/debug app".split()
    }
    exec {
        commandLine "voc -v -p app_packages -o build/intermediates/classes/debug app_packages".split()
    }
}

task buildPythonRelease << {
    exec {
        commandLine "voc -v -p app -o build/intermediates/classes/release app".split()
    }
    exec {
        commandLine "voc -v -p app_packages -o build/intermediates/classes/release app_packages".split()
    }
}

task run << {
    exec {
        commandLine "adb shell am start -n n/a.helloworld_appname/android.Helloworld".split()
    }
}

apply plugin: 'com.android.application'

android {
    compileSdkVersion 25
    buildToolsVersion "27.0.3"

    defaultConfig {
        minSdkVersion 15
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
    }
    sourceSets {
        main {
            manifest.srcFile 'AndroidManifest.xml'
            java.srcDirs = ['src']
            res.srcDirs = ['res']
        }
    }
}

project.afterEvaluate {
    packageDebug.dependsOn buildPythonDebug
    packageRelease.dependsOn buildPythonRelease
    run.dependsOn installDebug
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:25.1.1'
}