Let’s take a look at some of the most important ones: Swift Charts Like every year, Apple holds a developer-oriented conference called WWCD (Apple Worldwide Developers Conference), and this year it has presented many new features for SwiftUI version 4.0. All this saves code and reduces UI development time without having to create them individually for each operating system. Each operating system (iOS, macOS, watchOS, and tvOS) will be in charge of displaying the visual elements adaptively on each device we will only have to make minor tweaks for full compatibility. The UI code will be the same for all devices. We will have a single centralized framework to create the UI for all supported Apple devices. Now, the communication between the different views is done through the Combine framework, following the MVVM architecture (Model-View-View-Model). SwiftUI will not use the MVC architecture. This way the code is automatically generated, and even with SwiftUI Inspector, we can modify attributes of the elements from the canvas. We will also have the ability to drag and drop the canvas to manually layout the graphical elements. In addition, we will move from a framework with an imperative syntax to a declarative one and abandon delegates, among other aspects. Now, thanks to the previews we will be able to see in real-time the changes in our views as we write the code, without the need to compile. We will no longer have to connect classes to views using IBActions or IBOutlets and without seeing the result of our code until we execute the app, with the cost in time that this entails. The advantages over UIKit are quite remarkable in terms of code and layout of our applications. If our apps are compatible with previous versions we will not be able to use SwiftUI, and to enjoy all the new features of version 4.0 we can only do it using Xcode 14 and developing in versions equal to or higher than: Also, the devices where we want to run an application with SwiftUI will have to have versions equal to or higher than: To develop with SwiftUI we will need a minimum version of Xcode 11. Undoubtedly, a big change from the code that was generated with storyboards. It has a declarative syntax, which means that it will be much easier to create graphical interfaces. It was presented at WWDC 2019 and has brought a big change in the way we create our apps. Thanks to SwiftUI we will use a code editor and a Preview area (Canvas) instead of Storyboards and Interface Builder. With this set of tools, we can create the views of our applications for all Apple devices. ![]() SwiftUI takes advantage of all the power of Swift to create the graphical interfaces of our apps in a simple and innovative way. Let’s take a look at some of them and see what this powerful framework is all about. This version is fully developed with SwiftUI, which also presented a new version with interesting new features. Within this update, the new lock screen stood out, in which we can add more information and customize it to our liking. One of the highlights that Apple presented at the WWDC 2022 was iOS 16.
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