Trying to make share extension, have to recreate project

GIFCollector MessagesExtension/MessagesViewController.swift

@@ -15,6 +15,12 @@ class MessagesViewController: MSMessagesAppViewController {
   override func viewDidLoad() {
     super.viewDidLoad()
     setupChildViewController()
+    
+    // Register for notifications when app becomes active
+    NotificationCenter.default.addObserver(self,
+                                           selector: #selector(appDidBecomeActive),
+                                           name: UIApplication.didBecomeActiveNotification,
+                                           object: nil)
   }
 
   private func setupChildViewController() {
@@ -90,11 +96,22 @@ class MessagesViewController: MSMessagesAppViewController {
     // Called when the extension is about to move from the inactive to active state.
     // This will happen when the extension is about to present UI.
 
+    // Check for GIFs shared from the Share Extension
+    GIFStorageService.shared.checkForSharedGIFs()
+    
     // Refresh GIFs list when becoming active
     gifCollectionVC?.viewWillAppear(true)
   }
 
-  override func didResignActive(with conversation: MSConversation) {}
+  override func didResignActive(with conversation: MSConversation) {
+    // No action needed when the extension becomes inactive
+  }
+  
+  @objc private func appDidBecomeActive() {
+    // Check for GIFs shared through the Share Extension
+    GIFStorageService.shared.checkForSharedGIFs()
+    gifCollectionVC?.loadGIFs()
+  }
   override func didReceive(_ message: MSMessage, conversation: MSConversation) {}
   override func didStartSending(_ message: MSMessage, conversation: MSConversation) {}
   override func didCancelSending(_ message: MSMessage, conversation: MSConversation) {}