iOS Foundation(SwiftUI) Module 2- Lesson 8 challenge

App Development
1

Screenshot 2021-08-11 at 8.39.15 PM
Screenshot 2021-08-11 at 8.39.15 PM1920×1200 123 KB

Despite extensive brainstorming, I am unable to come up with a viable alternative to the solution provided.

2

Hey thanks for posting!

This is what I did:

/*
     Adds a pineapple to each of our pizzas. Changes the first property to this.
     */
    func addPineapple() {
        // Initialize an empty list of pizzas
        var updatedPizzas = [Pizza]()
        
        // Loop through our old list of pizzas to find their current toppings
        for pizza in pizzas {
            
            // Set a pizza we can change equal to the current pizza in the list
            var newPizza = pizza
            
            // Set this pizza's first topping to pineapple
            newPizza.topping1 = "Pineapple"
            
            // Add the updated pizza to our new list
            updatedPizzas.append(newPizza)
        }
        // Set the current pizzas to our new list, because we cannot directly change the current pizzas from here
        // Instead we need to set it to an entirely new list
        Pizza = updatedPizzas
        
    }

Also, I’d suggest not naming variables with capital letters, and giving the variable name some indication that it is a list. So perhaps renaming your Pizza to pizzaList, or just plural pizzas.

Here’s another pro tip, when posting code, use the tilde symbol, the weird squiggly looking symbol in the top-left of the keyboard ~. Then encapsulating your code within two tildes, so <code>.

1 Like
3

Your efforts are much appreciated. Can you please share whole ViewModel class code?

4

You’re welcome, and absolutely! I’ll do you one better than that. See here for the whole codebase: GitHub - agholson/Pizza-App

Cheers,
Andrew

P.S. spero che ti piace il mio umorismo

5

Here is what I did, that seems to work.

Comments please. It seems to work. I tried to to the change to the instantiated array in the View, but failed that. Decided to use a method in the class.

//
// PizzaPies.swift
// PizzaChallenge
//
// Created by Chris Percival on 3/19/22.
//

import Foundation

class pizzaMenu :ObservableObject{

@Published var pizzaPies = [Pizza()]


init(){
    //pizzaPies.append(Pizza(name:"Veggy",topping1: "Mushroom",topping2: "Onion",topping3: "Pepper"))
    pizzaPies[0] = (Pizza(name:"Veggy",topping1: "Mushroom",topping2: "Onion",topping3: "Pepper"))
    pizzaPies.append(Pizza(name:"Italian",topping1: "Salami",topping2: "Ham",topping3: "Onion"))
    pizzaPies.append(Pizza(name:"Greek",topping1: "Sausage",topping2: "Olive",topping3: "Onion"))
}

func changeToppings(){
    pizzaPies[0].topping1 = "Pineapple"
    pizzaPies[1].topping1 = "Pineapple"
    pizzaPies[2].topping1 = "Pineapple"
}

}

6

Also be sure to check the provided solution!

But like anything in programming, there’s more than one way to accomplish the same thing