Martin Dufort martindufort

Creating a "DMG installer" for OS X

A DMG Installer is convenient way to provide end-users a simple way to install an application bundle. They are basically a folder with a shortcut to the Applications directory but they can be customized with icons, backgrounds, and layout properties. A DMG file (.dmg) is a Mac OS X Disk Image file and it is used to package files or folders providing compression, encryption, and read-only to the package.

##Creating the DMG file #Disk Utility

	import UIKit

	class BackgroundView: UIView {
	private let containedView = UIStackView()

	private var buttonAction: (() -> ())?

	override init(frame: CGRect) {
	super.init(frame: frame)

	import XCTest
	import GRDB

	class JSONSupportTests: GRDBTestCase {
	func testJSONSupport() throws {
	let queries = [
	#"select json('[]') = '[]';"#,
	#"select json_array() = '[]';"#,
	#"select json_array_length('[]') = 0;"#,
	#"select json_array_length('[[]]','$[0]') = 0;"#,

	import UIKit

	extension UITextField {
	/// Add a trailing placeholder label that tracks the text as it changes
	func addTrailingPlaceholder(_ placeholder: String) {
	let label = UILabel()
	label.text = placeholder
	label.alpha = 0.3
	label.isHidden = true
	let container = UIView()

	//
	// RSDimensionHuggingTextField.swift
	// RSUIKit
	//
	// Created by Daniel Jalkut on 6/13/18.
	//

	import Cocoa

	// You probably want to use one of RSHeightHuggingTextField or RSWidthHuggingTextField, below

	import FirebaseFirestore

	private struct Property {
	let label: String
	let value: Any
	}

	struct FirestoreModelData {

	let snapshot: DocumentSnapshot

	import Foundation

	class MyService: NSObject, MyServiceProtocol {
	func upperCaseString(_ string: String, withReply reply: @escaping (String) -> Void) {
	let response = string.uppercased()
	reply(response)
	}
	}

	<!DOCTYPE html>
	<html>
	<head>
	<meta name="viewport" content="initial-scale=1.0" />
	</head>
	<body>
	<div id="editor" contenteditable="true"></div>
	</body>
	</html>

	struct Keycode {

	// Layout-independent Keys
	// eg.These key codes are always the same key on all layouts.
	static let returnKey : UInt16 = 0x24
	static let enter : UInt16 = 0x4C
	static let tab : UInt16 = 0x30
	static let space : UInt16 = 0x31
	static let delete : UInt16 = 0x33
	static let escape : UInt16 = 0x35

	import Foundation
	import CryptoSwift

	extension String {

	func aesEncrypt(key: String, iv: String) throws -> String{
	let data = self.dataUsingEncoding(NSUTF8StringEncoding)
	let enc = try AES(key: key, iv: iv, blockMode:.CBC).encrypt(data!.arrayOfBytes(), padding: PKCS7())
	let encData = NSData(bytes: enc, length: Int(enc.count))
	let base64String: String = encData.base64EncodedStringWithOptions(NSDataBase64EncodingOptions(rawValue: 0));