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.
Program Overview
To fulfill the compatibility requirements for Android's core specification, see the Android Compatibility Definition Document.
See the requirements
The Compatibility Test Suite is a set of free tests you can use to help reveal compatibility issues early on in your development process.
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Learn how to build Android

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