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

< Back to Latest Articles

Questions and answers, part 2

In the full tutorial…

  • Why did you wait until near the end of part 1 to write tests?
  • Should I be writing more tests as we go?
  • How many haptics are too many?
  • Can I search Spotlight’s index?
  • How do you track consumable in-app purchases?
Get the full 14:39 video by subscribing

Already a subscriber? Log in here!

Subscribe to Hacking with Swift+ today

Hacking with Swift+ delivers high-quality tutorials for subscribers, with each tutorial coming as a 4K Ultra HD video and in text form so you can read or watch – whatever works best for you.

So, you can get this full video and article as well as all other subscriber-only tutorials and all future tutorials – all by subscribing to Hacking with Swift+ today.

Membership includes…


✅    

All HWS+ tutorials as both text and 4K video

✅    

Downloadable projects and learning challenges

✅    

Our massive Ultimate Portfolio App series

✅    

Access to my monthly app building livestreams

✅    

Free gifts for every year of your subscription

✅    

An ad-free experience everywhere on the site

✅    

Video solutions for the 100 Days of SwiftUI

✅    

A 20% discount on all my books year-round

✅    

Access to an exclusive forum for subscribers

✅    

Videos from Hacking with Swift Live

Find out more here

Already a subscriber? Log in here!

More from Hacking with Swift+


Creating a WaveView to draw smooth waveforms

32:08

CUSTOM SWIFTUI COMPONENTS

FREE: Creating a WaveView to draw smooth waveforms

In this article I’m going to walk you through building a WaveView with SwiftUI, allowing us to create beautiful waveform-like effects to bring your user interface to life.

Trees

31:55

DATA STRUCTURES

FREE: Trees

Trees are an extraordinarily simple, extraordinarily useful data type, and in this article we’ll make a complete tree data type using Swift in just a few minutes. But rather than just stop there, we’re going to do something quite beautiful that I hope will blow your mind while teaching you something useful.

User-friendly network access

14:26

NETWORKING

FREE: User-friendly network access

Anyone can write Swift code to fetch network data, but much harder is knowing how to write code to do it respectfully. In this article we’ll look at building a considerate network stack, taking into account the user’s connection, preferences, and more.

Understanding assertions

27:33

INTERMEDIATE SWIFT

FREE: Understanding assertions

Assertions allow us to have Swift silently check the state of our program at runtime, but if you want to get them right you need to understand some intricacies. In this article I’ll walk you through the five ways we can make assertions in Swift, and provide clear advice on which to use and when.

Interview questions: Introduction

3:54

INTERVIEW QUESTIONS

FREE: Interview questions: Introduction

Getting ready for a job interview is tough work, so I’ve prepared a whole bunch of common questions and answers to help give you a jump start. But before you get into them, let me explain the plan in more detail…

How to use phantom types in Swift

24:11

ADVANCED SWIFT

FREE: How to use phantom types in Swift

Phantom types are a powerful way to give the Swift compiler extra information about our code so that it can stop us from making mistakes. In this article I’m going to explain how they work and why you’d want them, as well as providing lots of hands-on examples you can try.

Transforming data with map()

42:32

FUNCTIONAL PROGRAMMING

FREE: Transforming data with map()

In this article we’re going to look at the map() function, which transforms one thing into another thing. Along the way we’ll also be exploring some core concepts of functional programming, so if you read no other articles in this course at least read this one!

Using memoization to speed up slow functions

36:18

HIGH-PERFORMANCE APPS

FREE: Using memoization to speed up slow functions

In this article you’ll learn how memoization can dramatically boost the performance of slow functions, and how easy Swift makes it thanks to its generics and closures.

Functional programming in Swift: Introduction

6:52

FUNCTIONAL PROGRAMMING

FREE: Functional programming in Swift: Introduction

Before you dive in to the first article in this course, I want to give you a brief overview of our goals, how the content is structured, as well as a rough idea of what you can expect to find.

Creating a custom property wrapper using DynamicProperty

14:20

INTERMEDIATE SWIFTUI

FREE: Creating a custom property wrapper using DynamicProperty

It’s not hard to make a basic property wrapper, but if you want one that automatically updates the body property like @State you need to do some extra work. In this article I’ll show you exactly how it’s done, as we build a property wrapper capable of reading and writing documents from our app’s container.

Shadows and glows

19:50

SWIFTUI SPECIAL EFFECTS

FREE: Shadows and glows

SwiftUI gives us a modifier to make simple shadows, but if you want something more advanced such as inner shadows or glows, you need to do extra work. In this article I’ll show you how to get both those effects and more in a customizable, flexible way.

Understanding generics – part 1

20:01

INTERMEDIATE SWIFT

FREE: Understanding generics – part 1

Generics are one of the most powerful features of Swift, allowing us to write code once and reuse it in many ways. In this article we’ll explore how they work, why adding constraints actually helps us write more code, and how generics help solve one of the biggest problems in Swift.

Making the most of optionals

23:07

ADVANCED SWIFT

FREE: Making the most of optionals

Swift’s optionals are implemented as simple enums, with just a little compiler magic sprinkled around as syntactic sugar. However, they do much more than people realize, and in this article I’m going to demonstrate some of their power features that can really help you write better code – and blow your mind along the way.

Ultimate Portfolio App: Introduction

11:03

ULTIMATE PORTFOLIO APP

FREE: Ultimate Portfolio App: Introduction

UPDATED: While I’m sure you’re keen to get started programming immediately, please give me a few minutes to outline the goals of this course and explain why it’s different from other courses I’ve written.

Checkpoint 6

8:34

SOLUTIONS

Checkpoint 6

Checkpoint 6 of Swift for Complete Beginners asks you to create a struct to model a car, adding properties and methods that make sense. Let’s solve that now…

What are the advantages and disadvantages of SwiftUI compared to UIKit?

2:27

INTERVIEW QUESTIONS

What are the advantages and disadvantages of SwiftUI compared to UIKit?

This is another example of a question where exclusively picking one over the other makes you look inexperienced – software development is often fuzzy, and acknowledging that complexity is a mark of experience rather than a weakness.

Final tips then SwiftUI

1:12:54

EVENTS

Final tips then SwiftUI

We’re about to start exploring the many SwiftUI changes introduced this year, but before we’re done with concurrency we have two last techniques to explore.

Wrap up, part one

17:00

ULTIMATE PORTFOLIO APP

Wrap up, part one

UPDATED: We’ve just put in place the last major code to complete part one of this app. Let’s clean up just a tiny bit, then look over what we’ve made so far.

Drawing

16:27

SOLUTIONS

Drawing

This challenge asks you to add create a custom arrow shape, make it animatable, then create a color cycling rectangle with controls for gradient angle. Let’s tackle it now…

7 Swifty Words

1:21:13

LIVE STREAMS

7 Swifty Words

In this stream we’re going to build an app I wrote for the very first version of Hacking with Swift, back in 2014. Obviously we’re bringing it way up to date with Swift and SwiftUI, but you’ll also get some great, reusable assets you can use in other word games.

 
Unknown user

You are not logged in

Log in or create account
 

Link copied to your pasteboard.