iOS Articles

This article shows how you can easily map Firestore documents to Swift types using the Codable API.

If you've made a custom app for an organization, you'll need to distribute it privately. Here's a guide to private app distribution for iOS.

Apple has recently published a proposal to add a coroutine model to the Swift programming language. It brings a more convenient, efficient, and safer way to manage concurrency programming. The Async/Await syntax was introduced in the first phase of structured concurrency to allow users to organize complex asynchronous calls in the normal control flow mechanisms.

What if I told you you can use what you already know as an iOS developer for backend development?

Networking is a requirement for most modern iOS apps. Apps usually interface with a remote web service. And often, such a web service is a REST API that returns JSON data.

Writing the networking layer of an iOS app is not a simple task. When making asynchronous network calls, you need to combine several features of Swift, SwiftUI, and the Foundation framework. Moreover, many parts of your app’s architecture need to interact, making the task more complicated than it might seem at first.

The "Missing" Localization Glossary for Apple terminology in a dozen languages for common terms like Settings, Preferences, Copy & Paste, etc. Since Apple does not provide one, this is a great resource.

Full list of the languages and locale codes used by Apple for iOS and Mac apps. These are used to name localization folders (e.g. fr.lproj).

A thorough tutorial with pictures to walk through localizing an iOS/Mac app for the first time using Xcode. Steps include:
1. Preparing your iOS app for localization in Xcode 12.x
2. Extract your hard-coded strings to NSLocalizedString()
3. Use Xcode's import/export localization features

SwiftUI offers several mechanisms to pass data between views.

Such abundance can make it hard to decide which data flow mechanism fits any particular situation.

Those decisions cannot be taken in isolation. As in many other cases, we need to keep an app’s architecture in mind to make the correct choice.

User behavior can be a major head-scratcher. Every mobile product manager needs analytics tools to help them parse the data — we've got recommendations.

To create an adaptive UI that responds appropriately to changes in screen size and device orientation, we use Auto Layout, the constraint-based layout system. This article gives an overview of five different approaches to adding constraints programmatically.

Step-by-step guide on how to plan your next iOS beta test.

Guide to improving the performance of your mobile app. Get the best tips and tricks and optimize your iOS app and avoid bad reviews.

Learn the key mobile app performance metrics that you need to be ... so it's important to measure them and understand what benchmarks to hit.

Since the introduction of SwiftUI, the MVVM pattern has seen a new renaissance. Many developers believe that this particular pattern fits well with the SwiftUI data flow.
MVVM certainly has some good ideas, but it also brings along problems because of the various discording interpretations of the pattern and its rigidity.
In this article, we will see how MVVM fits in iOS apps written in SwiftUI, how to take advantage of its benefits, and how to avoid its problems.

On some projects, we need the client to be able to communicate with the server in real-time. The Websocket protocol works over the TCP socket connection and provides the ability of real-time, bi-directional communication between client and server.
The article gives a simple guide to set up the WebSockets API service on AWS, by using the serverless framework, API Gateway, and DynamoDB.

Taking advantage of Bonjour to easily implement a p2p connection between two devices to send data.

Locker is an open-source authentication and biometric security library for iOS.

In this article, you will learn how our team relies on code reusability to keep our apps stable, our UX solutions consistent and much more.

A look at some of the many challenges of implementing a dependable client-side WebSocket solution for iOS devices.

SwiftUI 2 introduces a new application life cycle that (almost) completely does away with AppDelegate. This article, discusses why this change was introduced, and how you can make use of the new life cycle in new or existing apps.

How URLSession works and how to stub responses by subclassing URLProtocol

Learn from the professional iOS app developer with years of experience

When your hair gets to a certain length, sleeping with long hair starts to become annoying. You either wake up from your hair tickling your face or in intense pain from you or your partner putting weight on your hair and pulling on it. You just need to learn a few tips on how to sleep with long hair.

iOS 14 introduced Widget Extension. The main purpose of widget is to display a small amount of timely, personally relevant information that people can view without opening your app.

As developers, we work on apps that may have sensitive content: selfies, pictures with families, payment details, copyright content, and confidential messages. How to protect our apps and secure users’ sensitive information from screenshots and screen recordings is a big concern.

The post explains, how to launch a completely sandboxed macOS application on system startup using Swift (SwiftUI)

These are my favorite iOS and Swift courses for beginners. You can use them to learn iOS and Swift from scratch. They are both hands-on and comprehensive and created by expert trainers like Angela Yu and Rob Percival.