Question 1

The food menu list is embedded in a NavigationView . Using the knowledge acquired in previous courses, which element you should use to display each of the items in the list that makes them tappable and able to open a new page when selected?

Question 2

Why should you make a struct identifiable?

Question 3

What is the basic difference between the modifiers onAppear and task that can be applied to SwiftUI views?

Question 4

The app that is being built in this course follows the structure shown in the next picture:

When an item is selected from the food items list, a new page opens showing details about the selected food. At the top of that new window, there is a back arrow which lets you navigate back to the previous page.

How do you have to build the food items on the list to make it work like this?

Question 5

Which steps might you use to add a search bar to a SwiftUI view?

Add this variable to the view struct: @State var searchText: String?
Embed the view elements in a NavigationView .
Add this modifier to the NavigationView : .searchable(text: $searchText, prompt: "your search placeholder here...")

Add this variable to the view struct: @State var searchText = ""
Embed the view elements in a NavigationView .
Add this modifier to the NavigationView : .searchable(text: $searchText, prompt: "your search placeholder here...")

Question 6

The main screen of the app you are building in this course has the following structure:

The menu breakdown area shows a list of food categories, such as Starters, Desserts, Drinks, Specials, etc.

Which code would you use to build a list with these categories that meet the following requirements?

The list is horizontal and scrollable.
The category names cannot be truncated.
No need to make the elements tappable.

  struct ContentView: View { 
    var categories = ["Starters", "Desserts", "Drinks", "Specials"] 
    var body: some View { 
        ScrollView (.horizontal) { 
            ForEach(categories) { category in 
                Text(category) 
                    .fixedSize() 
            } 
        } 
    } 
} 

 

extension String: Identifiable { 

    public var id: String { 

        self 

    } 

}

  struct ContentView: View { 
    var categories = ["Starters", "Desserts", "Drinks", "Specials"] 
    var body: some View { 
        ScrollView (.horizontal) { 
            HStack { 
                ForEach(categories) { category in 
                    Text(category) 
                        .fixedSize() 
                } 
            } 
        } 
    } 
} 

 

extension String: Identifiable { 

    public var id: String { 

        self 

    } 

}

Question 7

An entity is created in the Core Data model called Dish . This entity must contain the following properties: name , price and description . XCode will not let one property be named as description , why?