A.K. arashkashi

💭

Working with machines against the machine

Swift, Objective-C, native iOS app developer.

arashkashi / ManagedObject+Duplicate.swift

Created September 2, 2024 09:32

Duplicate Core Data items iOS Swift with all attributes and relationships


	import Foundation
	import Combine
	import Logging

	// swiftlint:disable empty_count

	protocol DuplicatableCoreDataEntity {
	var asyncID: String { get async throws}
	func setDuplicatedID() async throws -> String

arashkashi / json_decode_error_handling.swift

Last active January 5, 2023 09:40

	enum JSONDecodingError: Error {
	case decodingError(DecodingError)
	case unknown
	}

	extension DecodingError {
	var stringValue: String {
	switch self {
	case .valueNotFound(let value, let context):
	return "Value '\(value)' not found:" + context.debugDescription + "codingPath:" + context.codingPath.map { $0.stringValue }.joined(by: "<->")

arashkashi / injection.swift

Created November 21, 2022 15:46

a light weight injection code.

	// MARK: Demontration of Usage of Injection system
	// 1. First step: make the key object, the current value type is the one you are trying to add to injection system.
	private struct BaseClassKey: InjectionKey {
	static var currentValue: BaseClass = RealSubClass()
	}

	// 2. How to inject the currect value
	func test() {
	var dataController = TestDataStructure()

arashkashi / AppCoreDataManager.swift

Created November 7, 2022 07:33 — forked from levibostian/AppCoreDataManager.swift

iOS CoreData ultimate document. Stack, tutorial, errors could encounter. All my CoreData experience for what works in 1 document.

	import CoreData
	import Foundation

	protocol CoreDataManager {
	var uiContext: NSManagedObjectContext { get }
	func newBackgroundContext() -> NSManagedObjectContext
	func performBackgroundTaskOnUI(_ block: @escaping (NSManagedObjectContext) -> Void)
	func performBackgroundTask(_ block: @escaping (NSManagedObjectContext) -> Void)
	func loadStore(completionHandler: ((Error?) -> Void)?)
	}

arashkashi / test.swift

Created October 27, 2022 09:49

	//
	// BMW Motorrad Connected App for iOS
	//
	// Copyright © 2022 BMW Group. All rights reserved.
	//
	import Foundation
	import SwiftUI
	import WidgetKit

	struct WidgetSmallView: View {

arashkashi / combine_retry.swift

Last active August 16, 2022 10:25

how to make a retry function on swift combine

	import SwiftUI
	import Combine

	struct ContentView: View {

	class ViewModel: ObservableObject {
	var bag = Set<AnyCancellable>()
	init() {
	fetchFeeds()
	.tryCatch({ err -> AnyPublisher<Int, Error> in

arashkashi / font_manager.swift

Created March 15, 2022 19:44

custom fonts wrapped into the same style structure of Apple (/// https://developer.apple.com/design/human-interface-guidelines/ios/visual-design/typography/)

arashkashi / multiple_fetching.swift

Last active January 19, 2023 08:42

multiple BE calls for fetching data

	class ViewModel: ObservableObject {
	var bag = Set<AnyCancellable>()
	var t = "hellow"
	init() {
	let mainPublisher = [3, 2, 1].publisher
	mainPublisher.flatMap({ value in
	printit(value).map { calcualted in
	return (value, calcualted)
	}
	})

arashkashi / flowlayout.swift

Last active July 6, 2021 17:16

layout horizontally with new line instead of wrapping.

	struct SizeArrayKey: PreferenceKey {
	static var defaultValue: [CGSize] = []
	static func reduce(value: inout Value, nextValue: () -> Value ) {
	value.append(contentsOf: nextValue())
	}
	}


	struct Item: Identifiable {
	var id = UUID()

arashkashi / customRoundedCorder.swift

Created June 11, 2021 07:34

decide which sides of a rectangle you would like to be rounded #swiftui