I did, and they are great. I even have the Continuous App on my iPad Pro which is an F# development environment. It's incredible, but I am concerned about having to still drill down to the Android API, which means Java.
I am thinking more and more against my wish, that biting the bullet and just going Java all the way is the key. Kotlin, Xtend, you still have to read Android SDK code in Java, correct?
In terms of books, a friend bought me "Android 6 for Programmers: An App-Driven Approach (3rd Edition) (Deitel Developer Series)" to get me off the fence. I am going to work through it as much as I can to give Java a fair shake. I used to program in Java 5 for little side projects, but never mobile except for demo or tutorial apps years later.
Is this a good Android/Java book, or should I stay on board with my interests and do an Android Game or Android AI book slant?