anitaa1990

extension Dictionary {
    
    /* 
     * merge two dictionaries together to a single dictionary
     * var data1: Dictionary<String, String> = ["Fname", "Anitaa"]
     * var data2: Dictionary<String, String> = ["lname", "Murthy"]
     * var data3: data1.update(data2)
     * print(data3) -> ["Fname": "Anitaa", "lname" : "Murthy"]
     */
    mutating func update(other:Dictionary) {

anitaa1990

import Foundation


extension String {
  
  /* 
   * split a string into n lines
   * Eg: var s: String = "This is the first line.\nThis is the second line"
   * print(s.lines[0]) -> This is the first line
   */

anitaa1990

public class AES {

public static String encrypt(String key, String algorithm, String value) {
        try {
            SecretKey secretKey = new SecretKeySpec(Base64.decode(key.getBytes(), Base64.NO_WRAP), "AES");
            AlgorithmParameterSpec iv = new IvParameterSpec(Base64.decode(key.getBytes(), Base64.NO_WRAP));
            Cipher cipher = Cipher.getInstance(algorithm);
            cipher.init(Cipher.ENCRYPT_MODE, secretKey, iv);

            return new String(Base64.encode(cipher.doFinal(value.getBytes("UTF-8")), Base64.NO_WRAP));

anitaa1990

//Sample Implementation can be found here: https://jsfiddle.net/4zb9hrxb/1890/

let key = "Q8pTgdOC7h25qKVncJlzDA=="
let message = "TestAnitaa009"
let base64Key = CryptoJS.enc.Base64.parse(key);

var iv = base64Key

let encryptedValue = CryptoJS.AES.encrypt(message, base64Key, {
mode: CryptoJS.mode.CBC,

anitaa1990

/* Using WebCrypto.swift. You can download it using this link:
 * https://github.com/etienne-martin/WebCrypto.swift
 */

public class AES {
  
    /* The key received from the backend: base64 encoded string 
     * Step 1: Convert the base64 encoded string & the value to be encrypted -> to Data value type
     * Step 2: Convert the base64 encoded string to a hex string -> base64KeyData.map { String(format: "%02x", $0) }.joined()
     * Step 3: Use Webcrypto.swift to encrypt the value 

anitaa1990

import UIKit

class ViewController: UIViewController {
    
    override func viewDidLoad() {
        super.viewDidLoad()
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()

anitaa1990

    @IBAction func handleLoginAction(_ sender: Any) {
        /*
         * This example is when we want to pop current view controller & remove it from navigation backstack
         * before adding a new view controller to the stack
         */
      
      /*  Step 1: Instantiate the new View controller. In this case: ViewControllerC */
      let storyBoard : UIStoryboard = UIStoryboard(name: "Main", bundle:nil)
      let viewControllerC = storyBoard.instantiateViewControllerWithIdentifier("ViewControllerC") as! ViewControllerC
      

anitaa1990

@IBAction func handleLoginAction(_ sender: Any) {
        /*
         * This example is when we want to pop all view controllers from navigation backstack
         * & add a new view controller as the root view controller to the stack
         */
      
      /*  Step 1: Instantiate the new View controller. In this case: ViewControllerC */
      let storyBoard : UIStoryboard = UIStoryboard(name: "Main", bundle:nil)
      let viewControllerC = storyBoard.instantiateViewControllerWithIdentifier("ViewControllerC") as! ViewControllerC
      

anitaa1990

public class NoteDiffUtil extends DiffUtil.Callback {

    List<Note> oldNoteList;
    List<Note> newNoteList;
    public NoteDiffUtil(List<Note> oldNoteList, List<Note> newNoteList) {
        this.oldNoteList = oldNoteList;
        this.newNoteList = newNoteList;
    }

anitaa1990

    public void addTasks(List<Note> newNotes) {
        NoteDiffUtil noteDiffUtil = new NoteDiffUtil(notes, newNotes);
        DiffUtil.DiffResult diffResult = DiffUtil.calculateDiff(noteDiffUtil);
        notes.clear();
        notes.addAll(newNotes);
        diffResult.dispatchUpdatesTo(this);
    }