Swift Playground

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Learn and explore coding in Swift through interactive learning experiences on the Swift Playground app for iPadOS and macOS.

Posts under Swift Playground tag

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Which device is used to test Swift Student Challenge submissions?
Hi there, I intend to submit an app playground for the Swift Student Challenge this year. I am currently using the Swift Playgrounds app to develop a playground. Now I understand that when submitting I can choose the option of having my app playground to be tested on Swift Playgrounds on either iPadOS or macOS. But I would also like to know on which screen size is my app going to be tested. Let's say I want my app playground to run on macOS, now is there a way to also select the MacBook model, like 14-inch or 16-inch? This would give the participants a better idea of where the app playground will be tested.
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Feb ’25
How to custom swift playground preview application ($title.app) window size
I used Swift Playground to develop application in Mac OS. Also using ZStack I used limited area in full page (using .frame(width: $, height: $)). However using command + R or clicking start button to see preview .app, while non resizing application my ZStack show as cutted. Please tell me how to set preview .app frame size as width, height... The buttom code is ContentView.swift code. @main struct ContentView: App { init() { MyFont.registerFonts() } // @StateObject private var audioPlayer = AudioPlayer() var body: some Scene { WindowGroup { NavigationStack { StartMenuView() .frame(minWidth: 594, maxWidth: 594, minHeight: 1142, maxHeight: 1142) .preferredColorScheme(.dark) // Dark Mod .statusBar(hidden: true) // Hidden Status Bar .edgesIgnoringSafeArea(.all) // Ignoring Safe Area } } .windowResizability(.contentSize) } } Thank you for reading. ![]("https://developer.apple.com/forums/content/attachment/8ad9f219-6caa-49bf-b8c3-e4b7c91ab40f" "title=image.png;width=1050;height=803") ![]("https://developer.apple.com/forums/content/attachment/395ee85e-9543-4bfd-9caf-3ce3c2ca8414" "title=image2.png;width=1104;height=973")
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Feb ’25
Fatal Error in Swift Playground
Fatal Error in Swift Playground Description I'm experiencing a catastrophic error when importing Package Dependency in any Swift Playgrounds that has icon or name that caused the whole Playground won't work anymore with error messages below. I'm current running macOS Sequoia 15.3 (24D60) and Swift Playgrounds 4.6.1. They're all up-to-date. Reproduction Open Swift Playgrounds and and create a new project. Import a package dependency https://github.com/simibac/ConfettiSwiftUI.git Rename the project and add an icon Then you should able the reproduce the problem. I strongly believed that this is a serious bug. You'll find that Assets in the left column are disappeared and appeared Assets.xcassets, you're unable to reveal the Dependency in the column like the reference picture above. The whole Playground is destroyed now and unable to work anymore.
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Feb ’25
Link in Swift Student Challenge
I intend to participate in the Swift Student Challenge. A link is provided within my application that directs users to an Internet HTML web page. Link(destination: URL(string: "https://url.com")!) { Label("Developer Website - .....com", systemImage: "arrow.right") .shadow(color: Color.white ,radius: 50) } This URL corresponds to my personal web page. Although it is not directly related to the experience interaction within the application, I have decided to include it as it serves as a logo and demonstrates my proficiency in HTML. However, the challenge’s rules stipulate that the evaluation environment is not permitted to connect to the Internet. Consequently, I am concerned that my work may be rejected due to its perceived incompleteness or errors. So should I keep it? Thanks!
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Feb ’25
Can I Use Xcode and iPadOS 18? (and RealityView)
I'm preparing my submission for the Swift Student Challenge, and I have a couple of questions regarding the development environment. Is it allowed to use Xcode to program my scene, or do I have to use Swift Playgrounds? Can I use iPadOS 18 for development? I noticed that Swift Playgrounds currently only supports up to iPadOS 17.5, but I would like to use RealityView, which is only available starting from iPadOS 18. I appreciate any clarification on this. Thanks in advance!
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Feb ’25
Swift Playground New File & Folder Not Able to Rename
Hi, I encountered an issue after the latest update on Swift Playground. I’m using the iPad Pro 3rd Gen, first time reporting a bug hopefully I’m on the right platform. When I create a new Swift file or folder, it’ll auto revert the file/folder name to the default naming upon creation. Tested this one on a few existing projects, it’s the same for all of them. Initially when I created a new project to verify, those files/folders can be renamed without the issue of reverting. But after testing it again, seems like the same issue is happening to it as well. I‘ve tried restarting my iPad but the problem persists. So I thought to report it and from my search seems like this is the platform for it? Thanks.
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Feb ’25
The Swift Student Challenge is tested in the real machine.
I am interested in participating in the Swift Student Challenge. My application contains a significant amount of augmented reality (AR) content, necessitating access to the camera. It is evident that if the reviewer utilizes a simulator or operates on a Mac, they will not be able to experience the AR function. Therefore, the AR function in the camera experience application must be utilized to access a real iPad. However, it is mentioned in https://developer.apple.com/forums/thread/773530 that the plan is to evaluate Xcode app playgrounds within the simulator. Additionally, I observed the statement “Note: Xcode app playgrounds are executed in Simulator” on the submission page. Consequently, it is clear that the reviewers are limited to using a simulator or running my application on a Mac. In light of this, I am seeking guidance on how to enable the reviewer to utilize a real iPad to access the AR function in the camera experience application. Alternatively, I may need to reconsider my strategy and discontinue utilizing AR.
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Feb ’25
Swift playgrounds and display orientation swift student challenge submission
I was developing my app on Xcode and I saw in requirements it says “your submission must be an app playground (.swiftpm) I reckon I can develop in Xcode and then copy those files in playgrounds app, make some changes, for it to work. also I made my project in landscape mode in Xcode, in playgrounds can I lock display orientation through package.swift file or I should continue making me app in landscape mode and ask players to change their viewing orientation via a popup?
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Feb ’25
Winner's visa issue
It was mentioned in the Swift Student Challenge that outstanding winners will have the opportunity to visit Apple Park in the United States. However, as a challenger from China who is not currently in the U.S., this means that if I receive the outstanding award, I will need to apply for a visa to travel to Apple Park. Since I am under 18, my guardian would also need to apply for a visa. Therefore, I would like to know if Apple provides visa assistance for outstanding winners and their guardians from China, or if we are responsible for applying for the visas on our own.
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Feb ’25
Swift Playgrounds 4.6.1 Removes Subscription Feeds
I use Swift Playgrounds on iPad to run an intro to programming class with high school students. I've created some custom playground books based on Apple's guides to provide some simple sandboxes to learn basic coding. Students simply click a button on my website, which downloads my playground books so students can easily create new sandboxes. With Swift Playgrounds 4.6.1 on both Mac and iPad, clicking the link only opens Swift Playgrounds and does not download my playground books! There used to be an "Add a Subscription URL" button, but it is no longer present on the Learn to Code page or anywhere else in the app that I can find: Is it intentional that this functionality is removed? Playground Books still appear to work, and documentation for subscription feeds is still available. I start another session with my students next Monday, so I need to know as soon as possible whether I need to plan to work around this myself. Thanks, Mark Schmidt
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Feb ’25
Can we use Multipeer Connectivity framework and opensource packages for Swift Student Challenge?
I am building an app playground for SSC'25 where I want to use Multipeer Connectivity framework that would allow me to send and receive data to and from stranger devices. I also want to use some other open-source packages for some of the features. I just wanted to know if we are allowed to use or not?
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Jan ’25
Swift Student Challenge Playgrounds app in 3 min
I intend to participate in the Swift Student Challenge 25. I see Rules, It is mentioned that Playgrounds works should be a work that can be experienced in three minutes. However, my work does not meet this requirement. Create an interactive scene in an app playground that can be experienced within three minutes. Initially, my work was not intended for the Challenge but for the App Store. However, I decided to submit it to the Challenge, and my work and I met the requirements of the Challenge. Therefore, my work is a complete application, which makes it impossible for the judges to experience it within three minutes. It may take more time. Does this have any impact?
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Jan ’25
Running a local LLM on Swift Playgrounds
I am trying to run TinyLlama directly using Swift Playgrounds for iOS. I have tried multiple solutions, like libraries (LLM.swift, swift-transformers, ...) which never worked due to import issues, and also tried importing an exported mlmodel. For the later, I followed the article about Llama 3.1 on CoreML. It was hard to understand how to do the inference with it, but I was able to export a mlpackage, that I then placed in a xcode project to generate the mlmodelc (compiled model) and the model class. I had to go with the first version described in the article, without optimizations, as I got errors during model loading with the flexible input shapes. I was able to run the model for one token generation. But my biggest problem is that, though the mlmodelc is only 550 MiB, th model loads 24+GiB of memory, largely exceeding what I can have on an iOS device. Is there a way to use do LLM inferences on Swift Playgrounds at a reasonable speed (even 1 token / s would be sufficient)?
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1.4k
Jan ’25
Xcode playground export is doesn't work
I am having issues with exported playgrounds from Xcode, when I try to open my exported swift fill I get the following message: "Couldn't load settings from contents.xcplayground" Xcode Version: Version 16.2 (16C5032a) Steps to reproduce Create new playground in Xcode. File->Export Open exported file. The issue still press persist after reinstalling Xcode.
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Jan ’25