100 Days of SwiftUI Day 24

100 Days of SwiftUI – Day 24 – Project #3 Review

It’s day 24 of the 100 Days of SwiftUI! Yesterday, we learned a lot about the internal workings of SwiftUI, as well as a lot about views and modifiers. Today, we’re wrapping up our third project with a few challenges. Let’s dive in!

SwiftUI challenges from project #3

The first challenge had us revisit the WeSplit app, our first project. The assignment: use a conditional modifier to change the total amount text view to red if the user selects a 0% tip.

Section {
          Text(grandTotal, format: currencyFormatter)
          } header: {
             Text("Grand total")
          .foregroundColor(tipPercentage == 0 ? .red : .black)

The second challenge had us revisit our Guess the Flag app, the second project we completed: replace the Image view used for flags with a new FlagImage() view that renders one flag image using the specific set of modifiers we had.

struct FlagImage: View {
        var countries: [String]
        var number: Int
        var body: some View {
                .shadow(radius: 5)

ForEach(0..<3) { number in
                        Button {
                        } label: {
                            FlagImage(countries: countries, number: number)

The third challenge I implemented in our Guess the Flag app as well: create a custom ViewModifier (and accompanying View extension) that makes a view have a large, blue font suitable for prominent titles in a view.

struct largeBlueFont: ViewModifier {
    func body(content: Content) -> some View {

Text("Guess the Flag")

And that’s it for day 24! It was a bit short, but I feel I have a decent grasp on everything we’ve learned on views and modifiers. Tomorrow is our second consolidation day, where we revisit everything we’ve learned from day 16 onwards, as well as a challenge. Time fuel up!


Hi! My name is Darryl and this is my personal blog where I write about my journey as I learn programming! You'll also find articles about other things that interest me including games, tech and anime.

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  • Hey Darryl, not sure if you’ll even see this but I just wanted to say that your site has been an amazing resource. I got really stuck on step 2 of this wrap up and your site was the only thing I could find that really made it click for me.

    • Hi Infinite Shark, sorry for the late reply! I’m very happy to hear that this was helpful.

      I recently got married and moved to a new house so it’s been busy times, but I plan on picking up SwiftUI again when I’ve settled in. Good luck on your journey!

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