Understand your Mac and iPhone more deeply by tracing the evolution of Mac OS X from prelease to Swift. John Siracusa delivers the details.
You've got two main options:
| import React | |
| import UIKit | |
| class SecureImageView: UIView { | |
| @objc var url: String = "" { | |
| didSet { | |
| do { | |
| let imageUrl = URL(string: url) | |
| let data = try Data(contentsOf: imageUrl!) | |
| let image = UIImage(data: data) |
The Composable Architecture(TCA)๋ ์ผ๊ด๋๊ณ ์ดํดํ ์ ์๋ ๋ฐฉ์์ผ๋ก ์ดํ๋ฆฌ์ผ์ด์ ์ ๋ง๋ค๊ธฐ ์ํด ํ์ํ ๋ผ์ด๋ธ๋ฌ๋ฆฌ์ ๋๋ค. ํฉ์ฑ(Composition), ํ ์คํ (Testing) ๊ทธ๋ฆฌ๊ณ ์ธ์ฒด ๊ณตํ(Ergonomics)์ ์ผ๋์ ๋ TCA๋ SwiftUI, UIKit์ ์ง์ํ๋ฉฐ ๋ชจ๋ ์ ํ ํ๋ซํผ(iOS, macOS, tvOS, watchOS)์์ ์ฌ์ฉ ๊ฐ๋ฅํฉ๋๋ค.
| import UIKit | |
| /// Represents a single `NSLayoutConstraint` | |
| enum LayoutAnchor { | |
| case constant(attribute: NSLayoutConstraint.Attribute, | |
| relation: NSLayoutConstraint.Relation, | |
| constant: CGFloat) | |
| case relative(attribute: NSLayoutConstraint.Attribute, | |
| relation: NSLayoutConstraint.Relation, |
If you, like me, resent every dollar spent on commercial PDF tools,
you might want to know how to change the text content of a PDF without
having to pay for Adobe Acrobat or another PDF tool. I didn't see an
obvious open-source tool that lets you dig into PDF internals, but I
did discover a few useful facts about how PDFs are structured that
I think may prove useful to others (or myself) in the future. They
are recorded here. They are surely not universally applicable --
the PDF standard is truly Byzantine -- but they worked for my case.
| h1, | |
| h2, | |
| h3, | |
| h4, | |
| h5, | |
| h6 { | |
| font-family: 'GT America', sans-serif; | |
| } | |
| div, |
| import AsyncDisplayKit | |
| struct VideoProcessing { | |
| private static let loadOperation: OperationQueue = { | |
| let operationQueue = OperationQueue() | |
| operationQueue.maxConcurrentOperationCount = 3 | |
| operationQueue.name = "com.VideoFeedController.VideoLoaderOperation" | |
| operationQueue.qualityOfService = .utility | |
| return operationQueue | |
| }() |
https://swift.org/documentation/api-design-guidelines/
์ฌ์ฉํ ๋ ๊ธฐ์ค์ผ๋ก ๋ช ํํ๊ฒ ์์ฑํ๋ ๊ฒ ๊ฐ์ฅ ์ค์ํ ์งํฅ์ ์ด๋ค. ๋ฉ์๋๋ ํ๋กํผํฐ ๊ฐ์ ๊ฐ๋ฐ ์์๋ ํ ๋ฒ๋ง ์ ์ธํ๊ณ ๋ฐ๋ณต์ ์ผ๋ก ์ฌ์ฉํ๋ค. API๋ฅผ ๋ง๋ค ๋๋ ์ฌ์ฉํ๊ธฐ ๋ช ํํ๊ณ ํธํ๊ฒ ๋ง๋ค์ด์ผ ํ๋ค. ์ค๊ณ๋ฅผ ๊ฒ์ฆํ ๋ ์ ์ธ ๋ถ๋ถ์ ์ฝ๋ ๊ฒ๋ง์ผ๋ก๋ ๋ถ์กฑํ๋ค. ๊ทธ ๋์ ์ฌ์ฉํ๋ ์ํฉ์์ ๋งฅ๋ฝ์ ๋ง๊ณ ๋ช ํํ ์ง ๋ ๊ณ ๋ คํด์ผ ํ๋ค.
๋ช ํํ ํํ์ด ์์ถํ ๊ฐ๊ฒฐ์ฑ๋ณด๋ค ๋ ์ค์ํ๋ค. ์ค์ํํธ ์ฝ๋๋ ์์ถํด์ ๊ฐ๊ฒฐํ๊ฒ ์์ฑํ ์ ์์ง๋ง, ๋จ์ง ๊ธ์์๋ฅผ ์ค์ฌ์ ๊ฐ์ฅ ์งง์ ์ฝ๋๋ฅผ ๋ง๋๋ ๊ฒ ๋ชฉํ๋ ์๋๋ค. ์ค์ํํธ ์ฝ๋์ ๊ฐ๊ฒฐ์ฑ์ ์์ฐ์ค๋ฝ๊ฒ ๋ฐ๋ณต์ ์ผ๋ก ์ฌ์ฌ์ฉํ๋ ์ฝ๋(boilerplate)๋ฅผ ์ค์ด๋ ๊ธฐ๋ฅ๊ณผ ๊ฐํ ํ์ ์์คํ ์ ๋ถ์ํจ๊ณผ๋ก ๋๋ฌ๋ ๋ฟ์ด๋ค.
The repository for the assignment is public and Github does not allow the creation of private forks for public repositories.
The correct way of creating a private frok by duplicating the repo is documented here.
For this assignment the commands are:
git clone --bare [email protected]:usi-systems/easytrace.git
| exec > /tmp/${PROJECT_NAME}_archive.log 2>&1 | |
| UNIVERSAL_OUTPUTFOLDER=${BUILD_DIR}/${CONFIGURATION}-universal | |
| if [ "true" == ${ALREADYINVOKED:-false} ] | |
| then | |
| echo "RECURSION: Detected, stopping" | |
| else | |
| export ALREADYINVOKED="true" |