Theres a different between "supports writing your own code in that language" and "the platform APIs are in a language". In theory, it should be possible to wri

Theres a different between "supports writing your own code in that language" and "the platform APIs are in a language". In theory, it should be possible to write code on the Android platform using any JVM language. Groovy, Scala, Clojure, Kotlin, etc. There are hiccups to that right now but you can hack your way to it generally. But Android's APIs are going to stay in Java. That is a lot different than Apple's move to Swift, where the platform itself is moving to the new language.