         if let statusBar = UIApplication.shared.value(forKey: key) as? UIView {
             self.statusBar = statusBar
         }
-	}
+    }
     
     open override func viewWillAppear(_ animated: Bool) {
         super.viewWillAppear(animated)
-
+        
         self.statusBar?.alpha = 0
         self.modalPresentationCapturesStatusBarAppearance = true
         self.setNeedsStatusBarAppearanceUpdate()
     }
-
+    
     open override func viewWillDisappear(_ animated: Bool) {
         super.viewWillDisappear(animated)
-
+        
         self.modalPresentationCapturesStatusBarAppearance = false
         self.setNeedsStatusBarAppearanceUpdate()
     }

    open var customPreviewActions: [Any]? // [UIPreviewAction]
    
    open var transitionController: DKPhotoGalleryTransitionController?
	
    internal var statusBar: UIView?
	internal weak var contentVC: DKPhotoGalleryContentVC!
	
	open override func viewDidLoad() {
		super.viewDidLoad()
        
        self.view.backgroundColor = UIColor.black
		
        self.navigationBar.barStyle = .blackTranslucent
		self.isNavigationBarHidden = true
		
		let contentVC = DKPhotoGalleryContentVC()
        self.contentVC = contentVC
        
        contentVC.singleTapBlock = { [weak self] in

            self?.updateNavigation()
        }
        
        contentVC.items = self.items
        contentVC.currentIndex = self.presentationIndex
        contentVC.customLongPressActions = self.customLongPressActions
        contentVC.customPreviewActions = self.customPreviewActions
