General iOS, CS questions and interview prep resources.
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iOS Interview Questions for Senior Developers (useful even if you're not senior yet)
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struct Device { | |
// iDevice detection code | |
static let IS_IPAD = UIDevice.current.userInterfaceIdiom == .pad | |
static let IS_IPHONE = UIDevice.current.userInterfaceIdiom == .phone | |
static let IS_RETINA = UIScreen.main.scale >= 2.0 | |
static let SCREEN_WIDTH = Int(UIScreen.main.bounds.size.width) | |
static let SCREEN_HEIGHT = Int(UIScreen.main.bounds.size.height) | |
static let SCREEN_MAX_LENGTH = Int( max(SCREEN_WIDTH, SCREEN_HEIGHT) ) | |
static let SCREEN_MIN_LENGTH = Int( min(SCREEN_WIDTH, SCREEN_HEIGHT) ) |
Author: Chris Lattner
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struct MediaItem { | |
var duration: Int? | |
var title: String? | |
var urlString: String? | |
static func parseM3U(contentsOfFile: String) -> [MediaItem]? { | |
var mediaItems = [MediaItem]() | |
contentsOfFile.enumerateLines({ line, stop in | |
if line.hasPrefix("#EXTINF:") { | |
let infoLine = line.stringByReplacingOccurrencesOfString("#EXTINF:", withString: "") |
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/* | |
File: KeychainItemWrapper.h | |
Abstract: | |
Objective-C wrapper for accessing a single keychain item. | |
Version: 1.2 - ARCified | |
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple | |
Inc. ("Apple") in consideration of your agreement to the following | |
terms, and your use, installation, modification or redistribution of |