To provide your Android users with a coherent experience as they use your device alongside other Android devices in the ecosystem, apply these established standards to your Android implementation.
The Compatibility Test Suite is a set of free tests you can use to help reveal compatibility issues early on in your development process.

Learn how to build Android

Review the principles of Android development outlined in Architecture.
Follow security best practices to keep your users and devices safe.
Follow the Settings guidelines to build a usable, compatible settings interface.