douglashill

// A minimal iOS UIKit app set up entirely in code rather than using a storyboard and UIApplicationSceneManifest in the Info.plist.
// Last updated for iOS 18.

import UIKit

class SceneDelegate: UIResponder, UIWindowSceneDelegate {
    private var _window: UIWindow?

    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
        let window = UIWindow(windowScene: scene as! UIWindowScene)

douglashill

// `@testable` needed to access `_data`
@testable import Markdown // This package: https://github.com/apple/swift-markdown

/// Writes a Markdown document to HTML.
///
/// The primary goal is for output to match the output of Markdown.pl 1.0.1 as closely as possible.
/// <https://daringfireball.net/projects/markdown/>
///
/// Usage:
///

douglashill

extension URL {
    /// Splits a URL that might have a fragment into the URL with the fragment removed and the fragment text.
    ///
    /// If there is no fragment in the URL, this will return a URL identical to the receiver and nil.
    /// 
    /// Example input: https://github.com/douglashill/KeyboardKit/blob/main/Features.md#date-picker
    /// Example output: (https://github.com/douglashill/KeyboardKit/blob/main/Features.md, date-picker)
    func extractFragment() -> (urlWithoutFragment: URL, fragment: String?) {
        guard var components = URLComponents(url: self, resolvingAgainstBaseURL: false) else {
            logError("Couldn’t create URL components from URL in order to extract fragment.")

douglashill

NSError *error = [NSError errorWithDomain:@"domain" code:123 userInfo:nil];
[(NSFileHandle *)nil seekToOffset:0 error:&error];
assert(error != nil); // 💥 Not OK. The error has gone!

douglashill

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
}

class SceneDelegate: UIResponder, UIWindowSceneDelegate {
    private var _window: UIWindow?

    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {

douglashill

import UIKit

class FourColumnsContainerViewController: UIViewController {
    let outerSplitViewController = UISplitViewController(style: .tripleColumn)
    let innerSplitViewController = UISplitViewController(style: .doubleColumn)

    let primary = makeContentViewController("App")
    let secondary = makeContentViewController("Files")
    let mainContent = makeContentViewController("File Content")
    let inspector = makeContentViewController("Inspector")

douglashill

/// A Swift property wrapper that implements ‘lazy let’. I.e. a read-only property that loads its value when first read.
/// Not safe for access from multiple threads.
/// Does not work the same as the lazy keyboard because the property initialiser will run before self is available.
/// Adapted from https://github.com/apple/swift-evolution/blob/master/proposals/0258-property-wrappers.md
@propertyWrapper enum LazyLet<Value> {
    case uninitialised(() -> Value)
    case initialised(Value)

    init(wrappedValue: @autoclosure @escaping () -> Value) {
        self = .uninitialised(wrappedValue)

douglashill

// Douglas Hill, March 2020

// Code for the article at https://douglashill.co/menu-icon-swizzling/

import UIKit

struct MenuAlignmentFixError: Error, CustomStringConvertible {
    let description: String
}

douglashill

#! /usr/bin/swift

// Douglas Hill, March 2020

/*
 Extracts the most common translations from Apple’s glossary files.

 This script helped with localisation for KeyboardKit (https://github.com/douglashill/KeyboardKit) by leveraging Apple’s existing translations.

 More detail in the article at https://douglashill.co/localisation-using-apples-glossaries/

douglashill

#! /usr/bin/swift

// Douglas Hill, March 2020
// This file is made available under the MIT license included at the bottom of this file.

/*
 Extracts specific localised strings from Apple’s glossary files.

 This script helped with localisation for KeyboardKit (https://github.com/douglashill/KeyboardKit) by leveraging Apple’s existing translations.