SDK for anything your problem to make easier developing android apps.
ADAL - Android Development Acceleration Library.
A set of libraries that helps the developer speed up some common application needs.
Skygear Server is a cloud backend for making web and mobile app development easier https://skygear.io.
The Skygear Android SDK library that gives you access to the Skygear Server from your Android app.
Official Google Actions SDK is written in Node.js. But in many situations voice interfaces like Google Home or Google Assistant will extend or replace mobile apps. If you are old fashioned Android engineer and the most of your code is already written in Java, why not reuse it and build voice extension to app on your own? And this is the main reason to build Google Actions Java SDK - enabling as much developers as possible to build their brilliant ideas for Google Assistant and Home.
Currently this is just working proof of concept of Google Actions Java SDK. It means that there is no documentation, fixed interface, (not much) unit tests and many, many others.
Google Actions Java SDK is build based on official Node.js library, but it's not a mirror copy of it. The goal is to make it fully compatible with Conversational Protocol of Assistant Platform.
Official Android SDK to support:
Tooleap is an Android SDK which brings your app to the forefront of a user's device screen with a floating (always-on-top) UI, thus creating a unique multitasking experience and increasing your app's availability and usability.