Are Loaders up to date, or is there a newer mechanism?

Question

Android

I made an application for androyd 2.3+ where my bike was implemented in the likeness of loaders (for requests to api). Now I have installed the min version 4+, I want to remove the crutch and convert it to loaders, but they require a lot of code.
Question: are they relevant, or has a new mechanism for linking asynchronous tasks and the fragment / activity life cycle already appeared? Maybe what new one has appeared (for requests to the API I use retrofit)?

Answer 1

Retrofit works great with RxJava. To work with the database, there is StorIO. In general, Rx, and throw out the rest.