DAY 17
Project 1, part two
As Immanuel Kant said, “experience without theory is blind, but theory without experience is mere intellectual play.” Yesterday we covered almost all the techniques required to build this app, so now it’s time to turn all that head knowledge into a real, practical app.
One of the things I love about SwiftUI is how easily this transition from theory to practice is – there are no surprises lurking around the corner and no epic extra new things to learn along the way.
Sure, I’ll sneak in a couple of tiny things just to keep you on your toes, but for the most part you already know everything you need to build this project, so now it’s just a matter of seeing how things fit together.
Today you have four topics to work through, in which you’ll apply your knowledge of Form, @State, Picker, and more.
- Reading text from the user with TextField
- Creating pickers in a form
- Adding a segmented control for tip percentages
- Calculating the total per person
- Hiding the keyboard
Share your progress!
If you use Twitter, the button below will prepare a tweet saying you completed today, along with a celebratory graphic, the URL to this page, and the challenge hashtag. Don't worry – it won't be sent until you confirm on Twitter!
Need help? Tweet me @twostraws!
SPONSORED Let’s face it, SwiftUI previews are limited, slow, and painful. Judo takes a different approach to building visually—think Interface Builder for SwiftUI. Build your interface in a completely visual canvas, then drag and drop into your Xcode project and wire up button clicks to custom code. Download the Mac App and start your free trial today!
Sponsor Hacking with Swift and reach the world's largest Swift community!
100 Days of SwiftUI
The 100 Days of SwiftUI is a free collection of videos, tutorials, tests, and more to help you learn SwiftUI faster. Click here to learn more, or watch the video below.
