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Airbnb Technology Team
Airbnb Technology Team
Nov 17, 2023 · Mobile Development

Airbnb’s Journey from Epoxy/UIKit to SwiftUI: Evaluation, Migration, and Lessons Learned

Airbnb’s three‑stage migration from its custom Epoxy/UIKit stack to SwiftUI involved extensive evaluation, rebuilding the design system with flexible style protocols, bridging UIKit and SwiftUI, adopting one‑way data flow, extensive testing and training, resulting in six‑fold code reduction, comparable performance, widespread production adoption, and higher developer productivity despite remaining framework challenges.

AirbnbDeclarative UIEpoxy
0 likes · 17 min read
Airbnb’s Journey from Epoxy/UIKit to SwiftUI: Evaluation, Migration, and Lessons Learned
Airbnb Technology Team
Airbnb Technology Team
Aug 16, 2021 · Mobile Development

From Imperative to Declarative UI: Airbnb's Epoxy Framework for iOS

Airbnb’s Epoxy iOS framework replaces fragile, indexPath‑driven imperative UI code with a declarative model‑based system that automatically diffs and animates view updates, eliminating crashes, boosting developer satisfaction from –78 to +58, and enabling a unified, open‑source approach to building Swift interfaces.

Declarative UIDiffing AlgorithmEpoxy
0 likes · 10 min read
From Imperative to Declarative UI: Airbnb's Epoxy Framework for iOS