Google I/O 2017 app's source code released on GitHub to demonstrate the newest, best practices for Android devs

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Every year for the past few years, Google releases an app for I/O attendees. Then, a few months afterwards, the company uploads the app's source code to GitHub. This year's I/O app was aptly named "Google I/O 2017," and now, if you're an Android developer, you can go through its source code to see what new techniques you can implement into your own app(s).

The biggest addition to the I/O 2017 app was the event reservation system, which enabled attendees to make reservations and join waitlists for various events without having to stand in long lines. This data was synced to attendees' conference badges, which enabled staff to verify reservations on their phones with NFC. This was achieved with the Firebase Realtime Database (RTDB) and Cloud Functions for Firebase. A listener in the code allowed database updates to be received, and a Cloud function processed requests in the background, simultaneously communicating with the badge system while preventing attendees from reserving too many seats.

Even though the source code's been released, Google is still working on updating the app's code and simplifying its design. You can read about all the additions in much more detail at the source link below.

• Source: 
• Android Developers Blog