The nostalgic iOS 4 is made into an iPhone application as a whole, and a fierce man who reproduces it in pixel units appears
Speaking of iOS 4, it is system software released more than 10 years ago, around the time of iPhone 3GS and iPod touch (3rd generation). It reports that an 18-year-old developer has successfully recreated this vintage OS in its entirety as an iPhone app.
Developer Zane calls iOS 4 reproduced in the latest iPhone "OldOS" and reveals that it was made with SwiftUI. SwiftUI is a development environment that builds a user interface using the programming language "Swift" for developing applications for iOS, Mac, and Apple Watch.
According to Zane, the OldOS app is "a design that is as close to pixel perfection as possible". If you install it on your iPhone, you can experience smooth animations just like the real thing, and it is said that you can even experience the "nostalgic" home button feeling with haptic feedback.
Your privacy settings do not allow this content. Please change the settings hereAlso, there are Apple genuine apps that were pre-installed in iOS 4, and most of them seem to work smoothly. Exceptionally, the messaging app and YouTube still have 'problems to be addressed', but it seems that you can browse the web using Safari as it was at the time.
The latest OldOS app is available on the TestFlight service (Apple's official beta test), but at the time of writing the article, the number of testers has already reached the limit and it is not available. However, Mr. Zane has published the source code on GitHub, so if you have an Xcode environment at hand, you can compile it yourself and use it indefinitely.
It is unknown why Zane chose iOS 4, but it may be because it is a milestone version that changed the name from the previous "iPhone OS" to "iOS".
Source: Zane (Twitter)
via: Wccftech
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