Android development starts with the Android SDK - a collection of tools needed to build any kind of Android app. Discover what's included and how to use it.

Previously, you'd have to download Android Studio or the SDK to get these, which are a 400MB-1.6GB download. Even the smaller command line tools download is still 200-300MB.

The Android R Preview SDK just appeared in the SDK Manager, meaning there's likely some new stuff to poke through. As you can see from the screenshot above, Android R revision 1 is now in the list.