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

< Back to Latest Articles

Questions and answers, unused

In the full tutorial…

  • What does @ViewBuilder actually do?
  • Why do items from deleted projects appear on the home screen?
  • You said simple views are function calls – what does that mean?
  • Do I need to run genstrings again in the future?
  • What other ways can we store localization strings?
  • How can we test accessibility more thoroughly?
Get the full 46:09 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+


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.

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.

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.

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.

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…

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.

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.

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.

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.

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!

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.

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.

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.

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.

What does the @Published property wrapper do?

1:52

INTERVIEW QUESTIONS

What does the @Published property wrapper do?

A great answer should introduce property wrappers, then explain what @Published does, give some examples, compare it against @State, then bring in any extra real-world knowledge you can add around nuances or complexities.

Adding haptics

18:42

ULTIMATE PORTFOLIO APP

Adding haptics

UPDATED: In this article I’m going to walk you through adding haptics to your app, to make it feel a little more alive in the user’s hand.

Creating a day/night cycle

53:37

REMAKING APPS

Creating a day/night cycle

One of the most beautiful parts of the Weather app is the way it smoothly transitions between day and night – it doesn’t just go from black to blue, but instead mimics both sunrise and sunset, smoothly animating between the two. In this tutorial we’re going to recreate that same effect in our own app.

What is the purpose of NotificationCenter?

2:09

INTERVIEW QUESTIONS

What is the purpose of NotificationCenter?

Apple’s NotificationCenter class implements the observer pattern from the Gang of Four book on design patterns, allowing any number of objects be notified when a specific event happens. But to answer this question well, you need to go beyond theory and focus on when it’s actually used.

Queues and deques

28:18

DATA STRUCTURES

Queues and deques

Now that we’ve covered stacks and linked lists, queues and deques ought to be easier. In this article we’ll build both data structures in just a few lines of Swift, then explore interesting additions such as contains().

Binary trees

33:11

DATA STRUCTURES

Binary trees

We already looked at trees, where each node can have zero or more children, and now I want to look at a specialized version called binary trees, where each node has zero, one, or two children. In particular we’re looking to look at how these lead to binary search trees and the remarkable performance advantages they can bring.

 
Unknown user

You are not logged in

Log in or create account
 

Link copied to your pasteboard.