This is a demonstration of the minimal files and ceremony needed to build an Android application. Only 4 files are used for building.
MainActivity.java
pom.xml
icon.png
AndroidManifest.xml
You must have the Android SDK installed and your ANDROID_HOME environment variable set. You also need Maven.
To build the project run:
mvn package
To install the build package to an attached device or running emulator run:
adb install -r target/helloworld.apk