Articles, podcasts and news about Swift development, by John Sundell.

Refactoring SwiftUI views using functions

Published on 06 Jun 2019
Discover page available: SwiftUI

I see lots of SwiftUI comments about how it’ll “force” developers to write “Pyramids of Doom” with heavily nested code, which is just as false as MVC forcing developers to build massive view controllers. Here’s one example of how nesting can be avoided, by using inline functions:

struct MyView: View {
    var body: some View {
        func makeVStack() -> some View {
            VStack {
                ForEach(0..<5) { _ in makeHStack() }
            }
        }

        func makeHStack() -> some View {
            HStack {
                Text("Leading")
                Text("Trailing")
            }
        }

        return ZStack {
            Color.gray
            makeVStack()
        }
    }
}

Support Swift by Sundell by checking out this sponsor:

Essential Developer

Essential Developer: If you want to become a complete senior iOS developer, join this free online crash course starting on October 18th. Learn how to apply truly scalable iOS app architecture patterns through a series of lectures and practical coding sessions. Click to learn more.