Andrii A andriitishchenko

Вопросы на собеседование iOS разработчика (дополненное издание):

General

Что такое полиморфизм?

Полиморфизм — возможность объектов с одинаковой спецификацией иметь различную реализацию. Пример: Класс или интерфейс геометрических фигур (эллипс, многоугольник) может иметь методы для геометрических трансформаций (вычисление площади, смещение, поворот, масштабирование).

Что такое инкапсуляция?

инкапсуляция - языковой механизм ограничения доступа к определённым компонентам объекта

openssl

Install

Install the OpenSSL on Debian based systems

sudo apt-get install openssl

Using Git

Global Settings

Related Setup: https://gist.github.com/hofmannsven/6814278
Related Pro Tips: https://ochronus.com/git-tips-from-the-trenches/
Interactive Beginners Tutorial: http://try.github.io/
Git Cheatsheet by GitHub: https://services.github.com/on-demand/downloads/github-git-cheat-sheet/

Manipulating Property List in macOS Command Line

Tools

⚠️ defaults 명령어는 홈 경로(~)는 인식하지만 상대 경로(., ..)는 인식하지 않는다.

Build settings reference

Active Build Action (`ACTION`)

A string identifying the build system action being performed.

Additional SDKs (`ADDITIONAL_SDKS`)

The locations of any sparse SDKs that should be layered on top of the one specified by Base SDK (SDKROOT). If more than one SDK is listed, the first one has highest precedence. Every SDK specified in this setting should be a "sparse" SDK, for example, not an SDK for an entire macOS release.

	# xcode-build-bump.sh
	# @desc Auto-increment the build number every time the project is run.
	# @usage
	# 1. Select: your Target in Xcode
	# 2. Select: Build Phases Tab
	# 3. Select: Add Build Phase -> Add Run Script
	# 4. Paste code below in to new "Run Script" section
	# 5. Drag the "Run Script" below "Link Binaries With Libraries"
	# 6. Insure that your starting build number is set to a whole integer and not a float (e.g. 1, not 1.0)

	# taken from http://www.piware.de/2011/01/creating-an-https-server-in-python/
	# generate server.xml with the following command:
	# openssl req -new -x509 -keyout server.pem -out server.pem -days 365 -nodes
	# run as follows:
	# python simple-https-server.py
	# then in your browser, visit:
	# https://localhost:4443

	import BaseHTTPServer, SimpleHTTPServer
	import ssl

	// http://www.html5rocks.com/en/tutorials/es6/promises/

	function get(url) {
	// Return a new promise.
	return new Promise(function(resolve, reject) {
	// Do the usual XHR stuff
	var req = new XMLHttpRequest();
	req.open('GET', url);

	req.onload = function() {

	import Cocoa
	import CoreBluetooth
	import PlaygroundSupport

	class BTHelper: NSObject, CBCentralManagerDelegate, CBPeripheralDelegate {

	var centralManager: CBCentralManager
	override init() {
	self.centralManager = CBCentralManager(delegate: nil, queue: nil)
	super.init()

	// Photoshop Script to Create iPhone Icons from iTunesArtwork
	//
	// WARNING!!! In the rare case that there are name collisions, this script will
	// overwrite (delete perminently) files in the same folder in which the selected
	// iTunesArtwork file is located. Therefore, to be safe, before running the
	// script, it's best to make sure the selected iTuensArtwork file is the only
	// file in its containing folder.
	//
	// Copyright (c) 2010 Matt Di Pasquale
	// Added tweaks Copyright (c) 2012 by Josh Jones http://www.appsbynight.com