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The Light Way

Lisa Wray

Mobile engineer

Facebook

Lisa Wray is a mobile developer, speaker, and advocate specializing in user interfaces. She has a B.S. from M.I.T. in music and computer science, and is a Google Developer Expert for Android. She currently works at Facebook, and previously worked at Google, the New York Times, and Genius. She currently lives in Seattle.

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Abstract

What if an app could be performant by being simple? What if an app could work “at scale” for 1 billion users using only standard Android paradigms? At Facebook, we support some of the biggest, most complex apps in the world. But we also support developing countries, low-memory phones, and spotty network. So in Messenger Lite, we tried something different. We prioritized cold start and APK size by going back to basics. We limit our dependencies -- and our feature set. And we embrace what the Android framework provides to make a completely native app that’s featherweight and really, really fast. I’ll walk you through how these tools -- like data binding, RecyclerViews, a database-driven UI, and simply writing *less code* -- are available to every Android developer who wants to build their app the Lite way.

Intermediate

Session

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