Quantity And Total

Part of the Introduction to SwiftUI section of Coddy's Swift journey. Lesson 46 of 50.

Challenge

Medium

Keep everything from the previous steps. In OrderView:

Add a @State quantity starting at 1 and a Stepper titled Quantity: 1, ... from 1 to 5, with the identifier quantity.
Add a computed property extra: 0 for Small, 0.5 for Medium and 1.0 for Large.
Show the total, (price + extra) * quantity, as Total: $4.25 (two decimals) in the .headline font, with the identifier total, below the stepper.

Try it yourself

import SwiftUI

@main
struct CoddyApp: App {
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
    }
}

All lessons in Introduction to SwiftUI

1Introduction

4Modifiers

7Lists

10Project - Coddy Coffee

Quantity And Total Project lesson

2Showing Content

5State & Buttons

8Navigation

11Final Challenges

3Stacks & Layout

6User Input

9Sharing Data

Practice on your own: Swift playground