Given a list of cars (List cars), I can do:
List cars
Observable.just(cars); //returns an Observable that emits one List Observable.from
You can map an Observable> to Observable like so:
Observable>
Observable
yourListObservable.flatMapIterable(x -> x)
Note that flatMapping might not preserve the order of the source observable. If the order matters to you, use concatMapIterable. Read here for more details.
concatMapIterable