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Apple's Swift Charts team is now looking for interns for 2024!
This is a paid, in-person internship in Cupertino, California. While most internships last 3 months, starting in May or June, the start date and internship length are flexible. Internships are restricted to students pursuing a Bachelor's, Master's, or PhD degree. Students must be enrolled in school in
| import SwiftUI | |
| extension View { | |
| @MainActor | |
| func pdf(size: ProposedViewSize) -> Data { | |
| let renderer = ImageRenderer(content: self) | |
| renderer.proposedSize = size | |
| var pdfData = NSMutableData() | |
| renderer.render { size, render in | |
| var mediaBox = CGRect(origin: .zero, size: size) |
As Swift evolves, it gains new language features and capabilities. There are different categories of features: some fill in gaps, taking existing syntax that is not permitted and giving it a semantics that fit well with the existing language, with features like conditional conformance or allowing existential values for protocols with Self or associated type requirements. Others introduce new capabilities or paradigms to the language, such as the addition of concurrency or comprehensive reflection.
There is another large category of language features that provide syntactic sugar to eliminate common boilerplate, taking something that can be written out in long-form and making it more concise. Such features don't technically add any expressive power to the language, because you can always write the long-form version, but their effect can be transformational if it enables use cases that would otherwise have been unwieldy. The synthesis of Codable conformances, for ex
| // | |
| // ContentView.swift | |
| // MetalSwiftUI | |
| // | |
| // Created by Zach Eriksen on 9/8/20. | |
| // Copyright © 2020 oneleif. All rights reserved. | |
| // | |
| // Inspired [MetalUI](https://github.com/0xLeif/MetalUI) | |
| import SwiftUI |
| private func createDisplayLink() { | |
| CVDisplayLinkCreateWithActiveCGDisplays(&displayLink) | |
| guard let displayLink = displayLink else { | |
| return | |
| } | |
| let callback: CVDisplayLinkOutputCallback = { (_, _, _, _, _, userInfo) -> CVReturn in | |
| let myView = Unmanaged<MyView>.fromOpaque(COpaquePointer(userInfo)).takeUnretainedValue() | |
| dispatch_async(dispatch_get_main_queue()) { | |
| myView.update() |