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Adding matched geometry effects to Journeys

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Creating a WaveView to draw smooth waveforms

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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.

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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.

Making the most of optionals

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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.

Understanding generics – part 1

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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.

Ultimate Portfolio App: Introduction

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Trees

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Functional programming in Swift: Introduction

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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.

Creating a custom property wrapper using DynamicProperty

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Using memoization to speed up slow functions

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Making your app accessible

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Shadows and glows

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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.

Implementing App Clips in a real app

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Implementing App Clips in a real app

Now that you understand how App Clips work, in this part we’ll apply them to our Barking Lot app so you can see them in action with real code.

Bringing MVVM into our SwiftUI project, part 2

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In this article we’re going to continue with our move towards MVVM, this time converting another view that works well, but also looking at code that works less well so you can get a better idea of how SwiftUI and MVVM really work.

Just for fun: weather forecasting

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Just for fun: weather forecasting

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What’s new in Swift?

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Creating a FilteringList to filter a list using text input

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Creating a FilteringList to filter a list using text input

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Removing optionals from your code

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Optionals are one of Swift’s most powerful features, letting us write code that is guaranteed to be safe as long as we check and unwrap them carefully. However, more often than not I prefer to avoid optionals as often as possible, and in this article I’ll outline some approaches for doing so.

iPadOS sidebars and labels

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We’re going to implement your sidebar knowledge in Journeys so you can see it in action, then move on to examine the new Label view in iOS 14.

Creating a LongPressButton to trigger after delay

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