Set System to always use Rounded Font?

Question

In SwiftUI, is there a way to make the rounded version of the system font the default for all styles? I'm using one of the system styles (.body, .title, .headline, etc) for all text in the app.

For example, I can use this on a single Text view

Text("some text")
    .font(.system(.body, design: .rounded))

I'd like to avoid having to update every text view and field in my app like this. Is there some way to tell the environment to use the rounded design by default?

Answer 1

Here is how it is possible to set environment font in root view, all subviews will have it by default.

var body: some View {
    NavigationView {
        VStack {
            NavigationLink(destination: Text("Details")) {
                Text("Link")
            }
            Text("Tap on image to find details")
        }
    }.environment(\.font, Font.system(.body, design: .rounded))
}

Answer 2

You could create an extension on Font that has a function that automatically sets the design to being rounded, while still allowing you to set the TextStyle

extension Font {
    static func roundedFont(_ style: Font.TextStyle) -> Font {
        Font.system(style, design: .rounded)
    }
}

Then you would use it like this:

struct ContentView: View {
    var body: some View {
        Text("Hello").font(.roundedFont(.body))
    }
}