Navigating SwiftUI with an Enum Router (Cyclical A → B → C Flow) — A Simple example Introduction In this post, we’ll explore a lightweight, type‑safe way to manage navigation in SwiftUI by modelling screens as an enum and driving transitions with closures. We’ll illustrate a simple cyclical flow through three views—A → B → C → A—and then dive into the pros and cons of this approach. 1. Defining the Router State First, we define an enum with three cases—one for each screen.