ExtensionDataSharing05-ViewController.swift

ExtensionDataSharing05-ViewController.swift

import UIKit
import Books

class ViewController: UIViewController {
    
    var booksArray = [Book]()

    override func viewDidLoad() {
        super.viewDidLoad()
        
        saveUserDefaults()
        savePropertyList()
    }
    
    func saveUserDefaults() {
        let sharedDefaults = NSUserDefaults(suiteName: "group.example.DataSharing")
        sharedDefaults?.setObject("CS Books Extension", forKey: "ExtensionTitleKey")
        sharedDefaults?.synchronize()
    }
    
    func savePropertyList() {
        createBooks()
        
        if let filePath = SharedBooksManager.urlForSharedBooksArray() {
            NSKeyedArchiver.archiveRootObject(booksArray, toFile: filePath)
        }
    }
    
    func createBooks() {
        var book = Book(title: "The C Programming Language", author: "Kernighan & Ritchie")
        booksArray.append(book)
        book = Book(title: "The Art of Computer Programming", author: "Donald Knuth")
        booksArray.append(book)
        book = Book(title: "Introduction to Algorithms", author: "Cormen, Leiserson, Rivest, & Stein")
        booksArray.append(book)
    }

}