# Quickstart for Google VR SDK for Android NDK

This document describes how to get started with Google VR for Android by
building a sample C++ app using the NDK.

Most NDK developers have their own preferred way of building and deploying
applications. This tutorial uses Android Studio, but you should feel free to
follow along in the build environment of your choice.

We'll build the following sample app in this guide:

- [HelloVR](https://developers.google.com/vr/develop/android-ndk/get-started#hellovr_sample_app), a sample app that works with any VR viewer and uses touch events to interact with the system.

## Build the HelloVR sample app

First, read about [HelloVR and how to build it using the SDK](https://developers.google.com/vr/android/get-started). The
requirements and steps to build the app using the NDK are nearly the same, with
the following key differences:

- Download the latest version of the
  [Android NDK](https://developer.android.com/ndk/downloads/index.html).

- Extract the NDK `.so` files by running:

       ./gradlew :extractNdk

- In `settings.gradle`, uncomment the following line to enable that sample:

       include ':samples:ndk-hellovr'

> [!NOTE]
> **Note:** If you are using the [beta APIs](https://developers.google.com/vr/develop/experimental/6dof-reqs), also uncomment the `ndk-hellovrbeta` line.

- Select **samples-ndk-hellovr** as your target.