andresr-dev’s gists

andresr-dev / CodableClass.swift

Created March 31, 2023 19:45

This is how to conform to the Codable protocol within a class in swift

	import Foundation

	final class User: ObservableObject, Codable {
	enum CodingKeys: CodingKey {
	case name
	}

	@Published var name = "Paul Hudson"

	required init(from decoder: Decoder) throws {

andresr-dev / ForceDarkMode.swift

Created March 25, 2023 19:23

This is how to force dark mode in your application when the SwiftUI .preferedColorScheme() is not enough

	let scenes = UIApplication.shared.connectedScenes
	guard let scene = scenes.first as? UIWindowScene else { return }
	scene.keyWindow?.overrideUserInterfaceStyle = .dark

andresr-dev / LayoutWarningDisable.swift

Created March 16, 2023 16:44

This is how to disable the layout warnings in swift

UserDefaults.standard.set(false, forKey: "_UIConstraintBasedLayoutLogUnsatisfiable")

andresr-dev / Array-Sorted.swift

Created March 13, 2023 16:23

This is how to check if an array is sorted

	extension Array where Element: Comparable {
	func isSorted() -> Bool {
	self == self.sorted()
	}
	}

andresr-dev / ClockDuration.swift

Last active March 13, 2023 14:51

This is how to measure time execution in swift

	let clock = ContinuousClock()
	let start = clock.now
	// Do some heavy calculation...
	print("Took \(start.duration(to: .now))")

andresr-dev / AuthenticationWithBiometrics.swift

Last active February 20, 2023 21:47

This is how to authenticate a user with biometrics in swift

	import LocalAuthentication

	class AuthenticationService {
	// We need to provide a FaceID description in info.plist:
	// Privacy - Face ID Usage Description -> Identify yourself!

	func authenticate() {
	let context = LAContext()
	var error: NSError?

andresr-dev / CoreDataFileProtection.swift

Last active February 20, 2023 20:14

This is how to setup core data with in memory option and complete file protection

	import CoreData

	class DataController {
	let container: NSPersistentContainer

	/// Core Data initialization
	/// - Parameter inMemory: For testing and previewing purposes, we create a temporary,
	/// in-memory database by writing to /dev/null so our data is destroyed after our data finishes running.
	init(inMemory: Bool = false) {
	container = NSPersistentContainer(name: "Main")

andresr-dev / CoreDataDeleteBatch.swift

Created February 19, 2023 23:03

This is how to perform a batch delete in CoreData

	private func delete(_ fetchRequest: NSFetchRequest<NSFetchRequestResult>) {
	let batchDeleteRequest = NSBatchDeleteRequest(fetchRequest: fetchRequest)
	// Tell me the ids of the objects that you are going to delete
	batchDeleteRequest.resultType = .resultTypeObjectIDs

	// execute the deletion at the SQL level
	if let deleteResult = try? container.viewContext.execute(batchDeleteRequest) as? NSBatchDeleteResult {
	// get the IDs of the objects deleted
	if let objectIDs = deleteResult.result as? [NSManagedObjectID] {
	// Merge the deletions into the app's managed object context.

andresr-dev / OptionalBindingOperator.swift

Created February 7, 2023 17:03

This is a custom operator that allows you to perform nil coalescing with optional bindings in swift

	import SwiftUI

	public func ??<T>(lhs: Binding<Optional<T>>, rhs: T) -> Binding<T> {
	Binding(
	get: { lhs.wrappedValue ?? rhs },
	set: { lhs.wrappedValue = $0 }
	)
	}

	// MARK: - USE

andresr-dev / AutomaticGrammarAgreement.swift

Created January 30, 2023 00:34

This is how to apply automatic grammar agreement on a localizable file

Andres Raigoza andresr-dev