NEW: Subscribe to Hacking with Swift+ and accelerate your learning! >>

How to use implicit stacking

Paul Hudson    @twostraws   

Updated for Xcode 12.0

What happens if you create a dynamic list and put more than one thing in each row? SwiftUI’s solution is simple, flexible, and gives us great behavior by default: it creates an implicit HStack to hold your items, so they automatically get laid out horizontally.

For example, if we wanted to make a row where we had a small picture on the left and the remaining space be allocated to a text field, we’d start with a struct to hold our data like this:

struct User: Identifiable {
    var id = UUID()
    var username = "Anonymous"
}

I’ve given both of those default values to make our example easier.

Once we have that, we could create an array of three users, and show them in a dynamic list, like this:

struct ContentView: View {
    let users = [User(), User(), User()]

    var body: some View {
        List(users) { user in
            Image("paul-hudson")
                .resizable()
                .frame(width: 40, height: 40)
            Text(user.username)
        }
    }
}
Hacking with Swift is sponsored by Instabug

SPONSORED Are you tired of wasting time debugging your Swift app? Instabug’s SDK is here to help you minimize debugging time by providing you with complete device details, network logs, and reproduction steps with every bug report. All data is attached automatically, and it only takes a line of code to setup. Start your free trial now and get 3 months off exclusively for the Hacking with Swift Community.

Start your free trial!

Sponsor Hacking with Swift and reach the world's largest Swift community!

Similar solutions…

BUY OUR BOOKS
Buy Pro Swift Buy Swift Design Patterns Buy Testing Swift Buy Hacking with iOS Buy Swift Coding Challenges Buy Swift on Sundays Volume One Buy Server-Side Swift (Vapor Edition) Buy Advanced iOS Volume One Buy Advanced iOS Volume Two Buy Advanced iOS Volume Three Buy Hacking with watchOS Buy Hacking with tvOS Buy Hacking with macOS Buy Dive Into SpriteKit Buy Swift in Sixty Seconds Buy Objective-C for Swift Developers Buy Server-Side Swift (Kitura Edition) Buy Beyond Code

Was this page useful? Let us know!

Average rating: 4.9/5

Link copied to your pasteboard.