SwiftUI view with rounded corners AND border

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SwiftUI borders have straight edges no matter what corner radius you apply (.cornerRadius simply clips the view to a rounded mask and doesn’t adjust the border’s appearance).

If you want a rounded border, you’ll need to overlay and .stroke a rounded rectangle:

VStack {
    Text("some text")
    Button("Ok") {}
        .foregroundColor(.cyan)
        .padding()
}
.padding()
.background(.red)
.cornerRadius(20) /// make the background rounded
.overlay( /// apply a rounded border
    RoundedRectangle(cornerRadius: 20)
        .stroke(.blue, lineWidth: 5)
)

Result:

Rounded blue border

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