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Master iOS development through in-depth tutorials and comprehensive courses on Swift, SwiftUI, UIKit, Core Data, and more.
8:04
Making the API Client Extensible
Building a Modern Networking Layer in Swift
Because the application will interface with a number of endpoints of the mock API, we need to make sure the API client is easy to extend. The more we can reduce code duplication, the easier it is to extend and maintain the API client. In this episode, I show you how to use generics to make the API client extensible and easy to maintain.
in Networking
9:27
Creating an API Client
Building a Modern Networking Layer in Swift
Even though there is nothing inherently wrong with a view model performing network requests, it isn't an approach I recommend. Moving the networking logic out of the view model has a number of benefits. It reduces code duplication, facilitates unit testing, and improves the maintainability of the project to name a few.
in Networking
9:24
Handling Errors
Building a Modern Networking Layer in Swift
Handling errors is one of the less enjoyable aspects of software development, but it is an important one. You don't want to show the user a cryptic error message when something goes wrong, or worse, no error message. There is no clear-cut recipe you can follow. Every project is different. The good news is that error handling is built into Swift and the Combine framework. Let me show you how we can improve the code we wrote in the previous episode.
in Networking
8:01
Fetching a List of Episodes
Building a Modern Networking Layer in Swift
We start this series by making a simple GET request to the mock API to fetch the list of episodes. We won't be using a third party library. One of the goals of this series is to show you how to build a modern networking layer that relies on Foundation's URLSession API. It is simpler than you might think.
in Networking
6:30
Exploring the API
Building a Modern Networking Layer in Swift
Most applications talk to a remote API in some way, shape, or form. Networking is therefore an important aspect of software development. Sending a request to a remote API isn't difficult, but there is more to it. In this series, you build a modern networking layer for a Swift application using Foundation's URLSession API. We cover a range of topics, basic and more advanced, from making a simple GET request to signing requests with an access token. We make use of generics and protocol-oriented programming to create a networking layer that is flexible, testable, and easy to extend.
in Networking
8:33
Authenticating the User
Building a Sign In Form Using SwiftUI
With the view and the view model in place, we can authenticate the user. In this episode, you learn how to authenticate a user using the URLSession API and basic authentication.
in SwiftUI
6:32
Adopting the Model-View-ViewModel Pattern
Building a Sign In Form Using SwiftUI
In the previous episode, we built a sign in form using SwiftUI. In this episode, we create and integrate a view model that drives the sign in form.
in SwiftUI
6:10
Building the User Interface
Building a Sign In Form Using SwiftUI
In this series, we build a sign in form using SwiftUI. In the first episode, we build the user interface. In the next episodes, we apply the model-view-viewmodel pattern and perform a network request to sign the user in. At the end of this series, we have a fully functional sign in form that is ready to be integrated into an application.
in SwiftUI
7:03
Working with Units and Measurements in SwiftUI
SwiftUI Essentials
A few years ago, Apple added a number of APIs to the Foundation framework to make it easier to work with units and measurements. The APIs are flexible and straightforward to use. As of this year, SwiftUI integrates with these APIs to make it trivial to display units and measurements. The SwiftUI APIs we discuss in this episode are available as of iOS 15, tvOS 15, macOS 12, and watchOS 8.
in SwiftUI
8:33
Customizing Views with Modifiers
SwiftUI Fundamentals
To customize a view in a UIKit or AppKit application, you update one or more of the view's properties. For example, to change the text color of a UILabel instance, you update the label's textColor property. That is an imperative approach to user interface development.
in SwiftUI
8:47
Working with Xcode Previews
SwiftUI Fundamentals
SwiftUI's declarative syntax makes it straightforward to describe the user interface you have in mind. The API is intuitive and the framework's learning curve is gentle. But Apple didn't stop there. SwiftUI is deeply integrated into Xcode, making it almost trivial to build user interfaces using SwiftUI.
in SwiftUI
9:45
What Is a View
SwiftUI Fundamentals
A view is the fundamental building block of your application's user interface. You already know that a view is a type that conforms to the View protocol. In this episode, we take a closer look at views and the View protocol.
in SwiftUI