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filter()
, map()
, and reduce()
.UserDefaults
and Measurement
.PLUS: A huge and growing collection of solutions for challenges in the 100 Days of SwiftUI and elsewhere, a complete archive of HWS+ live streams, access to videos from Hacking with Swift Live 2020 and 2021.
Even more courses are on the way: debugging, testing, and of course lots more SwiftUI – I have an epic collection of tutorials coming, and I can’t wait to share them all with you.
Your Hacking with Swift+ membership gets you every subscriber-only article and video published now and in the future, plus an incredible amount of extras!
Every subscriber gets immediate access to the full range amazing tutorials written for Hacking with Swift+ subscribers, plus the ad-free browsing experience, downloadable projects, monthly live streams, private forum access, and more.
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UPDATED: At this point the first version of our app is almost finished, but before we move on to the next stage I want to make a handful of small fixes, tweaks, and improvements to round it out.
We’ve added quite a bit of iCloud functionality in the last few tutorials, so before we’re done we need to clean up what we have so it’s a solid foundation we can build on. To start with, that means tackling removing data as well as we handling adding data.
In a previous article we already looked at a great way to download data using Combine, but in this article we’re going to examine the other side of the problem: uploading Codable
data. Apple’s API here is a little gnarly, so I’m going to show you how to wrap it in a neat container using generics and Result
.
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.
UPDATED: Now that our app is all built, let's take a look at optimizing it for macOS – tailoring our Swift code to make the most of the Mac platform, rather than just running in iPad compatibility mode.
In this stream we'll build an app to locate food banks near to users, so they can donate needed items. This uses an external API that's a little bit inconsistent, so we'll need to explore Codable
alongside maps, networking, and more.
SwiftUI’s ButtonStyle
protocol is a great way to reuse designs across your app, to get a consistent look and feel everywhere. But they have one significant problem with animations, and in this article I’ll show you that problem in action, then walk you through how to fix it in a flexible way.
Anyone with even a modicum of SwiftUI experience can name things like @State
and @ObservedObject
, but this question specifically asks you not to mention the built-in ones so this is more about thinking what property wrappers actually add to our projects.
Okay, so the lightning effect took a lot of work, but now we’re on to something much easier: adding some sunshine. This is place ripe for experimentation, but we can get something good with remarkably little work.
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…
So far our home view has simply been a host for adding test data, but that changes now: we’re going to make the home view a summary of all their project progress, plus the most important items coming up next.
UPDATED: The final major change we’re going to make to our project is to look at how it fits in with the MVVM design pattern. I left this one to last because it’s quite a jump from our previous work and in many respects SwiftUI even fights against it, but I do think it’s worth exploring so you can be sure your code is sound.
We’re going to pull apart then rebuild the user interface from the Weather app that shipped with iOS 15 onwards. The app itself is remarkably big, but we’re going to cherry pick all the interesting bits – starting with clouds…
One of the least obvious but most important clean ups lies in our use of Core Data, because right now we’re leaking data and also showing flat out wrong data. To fix these we need to use some more advanced Core Data, so let’s get into it…
In this article we’re going to build a small macOS menu bar app that acts as a tiny calendar: it tells the user what events are in their calendar for today, tomorrow, and later in the week.
One of the big advantages to tasks is that we can pause them, or cancel them outright if their work is longer needed. Even better, for bigger problems we can create whole groups of tasks to accomplish work together.
UserDefaults
is the simplest way of storing user data, which makes it appealing for beginners, but also useful for even experienced developers who need a sensible place to stash away user preferences. However, it has downsides, and it’s important you’re familiar with them if you want to answer this question well.
This challenge asks you to add some extra text to the mission view, break up at least two SwiftUI views, then, for something harder, allow the user to move between a grid and a list for missions. Let’s tackle it now…
Previously we looked at how to create basic button styles that unify your app’s styling efficiently. In this follow-on article we’re going to explore three completely different button styles that show off just what SwiftUI is capable of: glossy marble buttons, classic fantasy buttons, and sci-fi buttons.
Apple’s Foundation framework makes it easy for us to convert any kind of measurement into any other kind of measurement. In this article I’ll show you how to make the most of these APIs, but also why it’s so useful that they work with Swift features such as operator overloading, plus important protocols such as Comparable
, Equatable
, and Codable
.
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