TEAM LICENSES: Save money and learn new skills through a Hacking with Swift+ team license >>

Views and modifiers: Wrap up

Paul Hudson    @twostraws   

These technique projects are designed to dive deep into specific SwiftUI topics, and I hope you’ve learned a lot about views and modifiers here – why SwiftUI uses structs for views, why some View is so useful, how modifier order matters, and much more.

Views and modifiers are the fundamental building blocks of any SwiftUI app, which is why I wanted to focus on them so early in this course. View composition is particularly key, as it allows to build small, reusable views that can be assembled like bricks into larger user interfaces.

Review what you learned

Anyone can sit through a tutorial, but it takes actual work to remember what was taught. It’s my job to make sure you take as much from these tutorials as possible, so I’ve prepared a short review to help you check your learning.

Click here to review what you learned in this project.


One of the best ways to learn is to write your own code as often as possible, so here are three ways you should try extending this app to make sure you fully understand what’s going on:

  1. Go back to project 1 and use a conditional modifier to change the total amount text view to red if the user selects a 0% tip.
  2. Go back to project 2 and 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.
  3. Create a custom ViewModifier (and accompanying View extension) that makes a view have a large, blue font suitable for prominent titles in a view.

Hacking with Swift+ subscribers can get a complete video solution for this checkpoint here: Solution to Views and Modifiers. If you don’t already subscribe, you can start a free trial today.

Hacking with Swift is sponsored by Superwall.

SPONSORED Superwall lets you build & test paywalls without shipping updates. Run experiments, offer sales, segment users, update locked features and more at the click of button. Best part? It's FREE for up to 250 conversions / mo and the Superwall team builds out 100% custom paywalls – free of charge.

Learn More

Sponsor Hacking with Swift and reach the world's largest Swift community!

Buy Pro Swift Buy Pro SwiftUI Buy Swift Design Patterns Buy Testing Swift Buy Hacking with iOS Buy Swift Coding Challenges Buy Swift on Sundays Volume One Buy Server-Side Swift Buy Advanced iOS Volume One Buy Advanced iOS Volume Two Buy Advanced iOS Volume Three Buy Hacking with watchOS Buy Hacking with tvOS Buy Hacking with macOS Buy Dive Into SpriteKit Buy Swift in Sixty Seconds Buy Objective-C for Swift Developers Buy Beyond Code

Was this page useful? Let us know!

Average rating: 4.7/5

Unknown user

You are not logged in

Log in or create account

Link copied to your pasteboard.