I’ve read and watched a lot on Rx. Most examples either use the J8 lambda notations/Scala/Groovy or some other awesome language that us Android developers are constantly envious of.
Unfortunately I could never find real-world simple examples in Android that could show me how to use RxJava. To scratch that itch, I created a github repo with a couple of nifty examples using RxJava. You can build the apk and run the app to see different working examples.