UPGRADE YOUR SKILLS: Learn advanced Swift and SwiftUI on Hacking with Swift+! >>

Wrap up

Core Animation is an extraordinary toolkit, and UIKit wraps it in a simple and flexible set of methods. And because it's so simple to use, you really have no excuse for not using it.

In this project you learned about the animate(withDuration:) method of UIView, spring animations, as well as alpha values and CGAffineTransform.

Remember, animation isn’t just there to make our apps look pretty – it also helps guide the users eyes. So, if you're moving something around conceptually (e.g., moving an email to a folder, showing a palette of paint brushes, rolling a dice, etc) then move it around visually too. Your users will thank you for it!

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 project 15.


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 your new knowledge to make sure you fully understand what’s going on:

  1. Go back to project 8 and make the letter group buttons fade out when they are tapped. We were using the isHidden property, but you'll need to switch to alpha because isHidden is either true or false, it has no animatable values between.
  2. Go back to project 13 and make the image view fade in when a new picture is chosen. To make this work, set the alpha to 0 first.
  3. Go back to project 2 and make the flags scale down with a little bounce when pressed.

BUILD THE ULTIMATE PORTFOLIO APP Most Swift tutorials help you solve one specific problem, but in my Ultimate Portfolio App series I show you how to get all the best practices into a single app: architecture, testing, performance, accessibility, localization, project organization, and so much more, all while building a SwiftUI app that works on iOS, macOS and watchOS.

Get it on Hacking with Swift+

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

Share your success!

One of the most effective motivators of success is sharing your progress with other people – when you tell folks what you're doing and what you've learned, it encourages you to come back for more, which in turn will help you reach your app development goals faster.

So, now that you've done all the hard work it's time to share your success: tell folks that you've completed this project, either by clicking the button below to start composing a tweet, or by writing your own message from scratch. This will definitely encourage you to keep learning, but it will also help other folks discover my work – thank you!


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

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