import SMLocalize

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, ReloadableAppDelegate {

  var window: UIWindow?

  func application(_ application: UIApplication,
                   didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    // Uncomment the next line if u want to use Arabic as the default language at the first app launch before the user changes the language manually.
    // SMLocalize.defaultLanguage = "ar"
    SMLocalize.configure()
    reload()
    return true
  }

  func reload() {
    if window == nil {
      window = UIWindow(frame: UIScreen.main.bounds)
      window!.makeKeyAndVisible()
    }
    let storyboard = UIStoryboard(name: "Main", bundle: nil)
    let vc = storyboard.instantiateInitialViewController()
    window!.rootViewController = vc
  }
}

import SMLocalize

class ViewController: UIViewController {
...
...
@IBAction func changeLanguageTapped(_ sender: UIButton) {
  SMLocalize.currentLanguage = "ar" // Your new language
  SMLocalize.reloadAppDelegate()
  }
}

import SMLocalize

class ViewController: UIViewController {
...
...
@IBAction func changeLanguageTapped(_ sender: UIButton) {
  SMLocalize.currentLanguage = "ar" // Your new language
  // Optional animation. Change to nil if not needed.
  SMLocalize.reloadAppDelegate(animation: [.transitionFlipFromRight, .curveEaseOut], duration: 0.3)
  }
}

import SMLocalize

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, ReloadableAppDelegate {

  var window: UIWindow?

  func application(_ application: UIApplication,
                   didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    SMLocalize.defaultLanguage = "ar" // Must be set before SMLocalize.configure()
    SMLocalize.configure()
    reload()
    return true
  }
}

import SMLocalize

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, ReloadableAppDelegate {
  func application(_ application: UIApplication,
                   didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    SMLocalize.configure()
    // Flip images in views with tags from 1 to 10
    // Avoid including 0 in this set since it will cause UIKit issues.
    SMLocalize.flipImagesInViewsWithTags = Set(1...10)
    return true
  }
}

import SMLocalize

class ViewController: UIViewController {
...
...
 override func viewDidLoad() {
    super.viewDidLoad()
    arrowImgToFlip.tag = 1
    anotherImgToFlip.tag = 2
    myContainerView.tag = 5
    imgInsideMyContainerView.tag = 6
  }
}