Smooth list in RxJava 2

Question

I have been using RxJava 1 for some time, but I want to see RxJava 2. In RxJava 1, I can highlight each item in the list as follows:

List<String> list = ...
Observable.from(list)
    .filter(str -> str.contains("Help")
    .subscribe(...);

However, how can I achieve the same with RxJava2? I tried using the following, but I cannot miss the following:

Observable.fromArray(list)
// this now passes a list into the stream - there is no Observable::from

Answer 1

You need to use fromIterable()since any List<T>extends Collection<T>that extendsIterable<T>

Observable.fromIterable(list)
          .filter(str -> str.contains("Help")
          .subscribe(...);