A couple of years ago I bought an Android Wear device. Naturally, I wanted to see how to write apps for this smartwatch. That app is part of my book about Android programming. When I finalized the version for Android 7 a few months ago, Android Wear 2.0 was still in beta. This has changed recently, so I updated the app accordingly. You can find the source on GitHub. The app itself can be downloaded from the Play Store. Here’s how it looks like:
Of course you need an Android Wear smartwatch to give it a try.