SwiftUI: how to create a Tab View

It’s common in iOS apps to use a Tab View. The one with a few choices at the bottom, and you can completely switch what’s in the screen by tapping the icon / label.

SwiftUI conveniently provides us a view called TabView, which makes it easy to implement such a UI pattern.

Here’s the simplest possible example of a TabView:

import SwiftUI

struct ContentView: View {
    
    var body: some View {
        TabView {
            Text("First")
                .tabItem {
                    Label("First", systemImage: "tray")
                }

            Text("Second")
                .tabItem {
                    Label("Second", systemImage: "calendar")
                }
        }
    }
}

And here’s the result:

See? We have a TabView view, and inside it, we have 2 views.

Both are Text views to make it simple.

Their tabItem modifier will add them to the TabView with a label provided as a Label view.

Of course you will want to use a custom view instead of Text in most cases.