mansi-27

import Foundation

public extension FileManager {
// Returns a URL that points to the document folder of this playground.
    static var documentDirectoryURL: URL {
        return try! FileManager.default.url(
            for: .documentDirectory,
            in: .userDomainMask,
            appropriateFor: nil,
            create: false

mansi-27

do {
  /// Specify a URL where you want to save the myAPIKeys.plist file with proper extension and pathComponent.
    
  let plistURL = URL(fileURLWithPath: "myAPIKeys", relativeTo: FileManager.documentDirectoryURL.appendingPathComponent("MyPlistFolder")).appendingPathExtension("plist")

  /// Create an instance of PropertyListEncoder()
  /// Specifying outputFormat as `xml` so that you can view it in a source code file format or plist file format.
  /// After that, encode your array of keys that you created above
  /// And finally, write the encoded Data to your myAPIKeys.plist file.
  /// Voila!

mansi-27

let documentSubdirectoryURL = URL(
    fileURLWithPath: "MyPlistFolder",
    relativeTo: FileManager.documentDirectoryURL
)
try? FileManager.default.createDirectory(
    at: documentSubdirectoryURL,
    withIntermediateDirectories: false
)

mansi-27

let myKeys = [
  MyKey(
    keyName: "facebookAPIKey", 
    keyValue: "ValueOfMyFacebookAPIKey",
    type: .facebook),
  MyKey(
    keyName: "twitterAPIKey", 
    keyValue: "ValueOfMyTwitterAPIKey", 
    type: .twitter)]

mansi-27

struct MyKey: Codable {
    enum Social: String, Codable {
        case twitter, facebook
    }
    init(keyName: String, keyValue: String, type: Social) {
        self.apiKeyName =  keyName
        self.apiKeyValue = keyValue
        self.keyType = type
    }
    let apiKeyName: String

mansi-27

@IBAction func btnHorizontalFlipTapped(_ sender: UIButton) {
        let presentationVC = ThirdViewController()
        presentationVC.modalTransitionStyle = .flipHorizontal
        present(presentationVC, animated: true, completion: nil)
    }
    
@IBAction func btnPageCurlTapped(_ sender: UIButton) {
        let presentationVC = ThirdViewController()
        presentationVC.modalTransitionStyle = .partialCurl
        present(presentationVC, animated: true, completion: nil)

mansi-27

// MARK: - IBActions
    @IBAction func btnNavigateTapped(_ sender: UIButton) {
        /// 👉🏼 Add your animation before you push/pop the view controller
        navigationController?.addTransition()
        /// 👉🏼 Don't forget to set the default animated property to FALSE
        navigationController?.pushViewController(SecondViewController(), animated: false)
    }

    @IBAction func btnGoBackTapped(_ sender: UIButton) {
        /// 👉🏼 Add your animation before you push/pop the view controller

mansi-27

import UIKit

extension UINavigationController {
    
    func addTransition() {
        /// First, we initiate a CATransition object
        let transition = CATransition()
        /// Second, we define the duration for the transition to get COMPLETED
        transition.duration = 1.0
        /// Here, you define the animation pacing (whether it starts slowly, ends faster OR starts faster, ends slowly... etc)