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Using Apple Swift and SwiftUI in iOS 16

15.09.2023

About a year has passed since the presentation of iOS 16, but those who plan to create software for Apple and post their applications as App Store Developers still have questions about the system’s integrated applications. Our review will help you understand the main points, in particular, you will learn about the total number of binaries, the programming languages used and their evolution.

Important nuances

Initially, we note that the Apple company is reluctant to inform the public about the intricacies of creating its operating systems (which is understandable). Therefore, confirmation of the use of Swift and SwiftUI elements is carried out by indirect evidence, taking into account the experience of our iOS experts, who constantly analyze the OS and help everyone who wants to get a Developer Account. A comprehensive analysis is only possible if you have access to the source code, which is available only to the creators of the operating system.
A significant point is the steady increase in the number of binary files included in the OS. In version 16 there are 5403 binaries, while in the previous version there were only 4738. Thus, the addition of 665 sequences of arbitrary bytes is visible.

Features of using SwiftUI and Swift in version 16 of iOS

All Account Developer status holders are aware that in 2022, Apple recommended that developers use SwiftUI and Swift. The statement was made as part of the Platforms State of the Union presentation at WWDC, and many took it into account. But the question arises about how actively the corporation itself uses the best programming tools they claim.
There is no doubt about using SwiftUI when developing and integrating the Swift Charts framework and the Live Activities, Live Captions, Shared with You functions using additional frameworks. At the same time, there is a small number of utilities that are based on its life cycle. These include:

System/Library/CoreServices/AegirProxyApp.app/AegirProxyApp;
/private/var/staged_system_apps/Weather.app/Weather;
/Applications/FTMInternal-4.app/FTMInternal-4;
/Applications/Batteries.app/Batteries.

On the other hand, judging by the growing number of binary files (in the latest version there are 2 times more than 15 – 226 binaries), then there is a trend towards increasing integration of the “native” programming language and the Framework. Another argument in favor of this statement is the increase in the number of files where there is at least 1 line of Swift code.
While working on applications, any Apple Developer often encounters AirPlayReceiver, AirDropUI, ContactsUI, Batteries, FaceTime, HomeUI, AppleIDSetupUI, WorkoutCore, PodcastsUI. They too are implementing SwiftUI, as is the iOS Feedback Assistant, as well as binaries related to Apple Pay, Shazam, and music.

How programming languages have changed since the first iPhone model

As operating systems developed, the programming languages used in the process of their creation also improved. Future and current Apple Developer Account holders will be interested to know that:

iOS is based on Objective-C and is used to varying degrees in most utilities;
Swift is now superior to C++;
C++ is consistently used in the development of Apple applications, but the share of C is gradually decreasing;
The American company is clearly experimenting with SwiftUI when creating new versions of the operating system.

Conclusion

To summarize, we note that SwiftUI and Swift are actively used for the development of iOS components. Moreover, the development of programming languages is clearly visible in each new version of the operating system. Today, the superiority of Swift over C++ is noticeable, as well as the active use of SwiftUI in the products of the legendary manufacturer.
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use the services of a specialized company that has corporate and individual accounts at its disposal, which can be used immediately after gaining access. Nova.Shop will become your reliable partner for starting a business in the field of mobile applications;
registering yourself is a rather lengthy and labor-intensive procedure, because you need to fill out a form without errors, then successfully pass a security check, and then pay for access for a year.

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