Two years after tapping Kotlin for use in Android mobile development -- long dominated by Java -- Google is making it the No. 1 option.

Google announced 10 new libraries for Android Jetpack and unveiled Jetpack Compose, a new unbundled Kotlin toolkit for UI development.

This post is an introduction to Kotlin for Android development. Learn how the language differs from Java and the basic syntax and layout.

At Google I/O, Google made a number of announcements focused on how it's helping Android developers work more productively.