Sean McQuillan covers Google Sign-In, Smart Lock, Autofill Framework, and Auto Backup for Android developers. These features allow app developers to improve their retention and user experience. Android users upgrade devices regularly and providing an optimized sign in and data transfer to their new device will help you improve your retention numbers - and keep your users happy!
Google Sign-In: https://goo.gl/GbfqgP
Smart Lock for Passwords: https://goo.gl/GbfqgP
Android Autofill Framework: https://goo.gl/
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