David Ganster wrote the AdditiveAnimation Android library and it drastically improved the feel of his apps without any significant code changes — simultaneously making all animation-related code shorter, more performant and easier to read.
Kobiton is a mobile device cloud that lets you test mobile, Web and hybrid apps on real Android devices. Test your way with manual and automation testing. Automatically generated activity logs help you track your progress. Supports Appium 1.6.4. Try it for free - no commitment required.
Kotlin’s blown up in popularity over the last year, and here's a series of videos to introduce you to it. From building a sample app to learning how it interacts with the JVM, these talks will bring you into the future of Android development.