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Recreating a fully functional version of iOS 4 in SwiftUI  ↦

OldOS is a testament to the days of yesteryear, showcasing what iOS once was ten years ago. The ethos of the app is to merge the technologies of today with a pixel-perfect recreation of the user experience of the past. The vast majority of apps in OldOS are fully functional — meaning they seamlessly integrate with the data on your phone to deliver a live, emulator-esque experience. What does this mean? Well, you can play your music in iPod, get directions in Maps, surf the web in Safari, view the current weather in Weather, and much more.

This is quite the undertaking!

Part of the goal with OldOS is to enable anyone to understand how iOS works and demonstrate just how powerful SwiftUI truly is. For that reason, the entire app will soon be open-sourced — enabling developers to learn about, modify, and add to the app. I thought building this over my last six or so months in high school and sharing it with the world would be a fun and productive endeavor.

It looks like there’s a build available today, but it’s not open source yet so I’m going out on a limb by linking it up now. I’ve +1’d a request for screenshots, which would be a great addition to the repo while we wait for code.

Recreating a fully functional version of iOS 4 in SwiftUI

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