Welcome to the OneSignal New IA developer hub. You'll find comprehensive guides and documentation to help you start working with OneSignal New IA as quickly as possible, as well as support if you get stuck. Let's jump right in!
Instructions for adding the OneSignal Android Mobile App SDK to your app for Android or Amazon Kindle Fire (using Android Studio)
4.0.0 is out of beta and is live. See the standard OneSignal Android SDK setup guide
Updated about a month ago
You can only suggest edits to Markdown body content, but not to the API spec.