RxSwift

Lesson in the iOS Roadmap · Stage 16: Delegate Pattern

Last updated 14 September 2026

What is RxSwift?

RxSwift is the Swift implementation of the ReactiveX library, providing a comprehensive API for reactive programming. It introduces Observable sequences that emit items over time and a large set of operators for combining and transforming them. RxSwift was widely adopted in iOS development before Apple introduced Combine and remains in use in many codebases.

Study this in the interactive course See the whole iOS roadmap

Free resources to learn RxSwift

RxSwift: common questions

Can I learn RxSwift in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain RxSwift in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this RxSwift tutorial for beginners?

It is lesson 96 of 170 in the free iOS roadmap, in stage 16, Delegate Pattern. If you are new to iOS, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.